Factors influencing professionalism and the viability of local firms in Nigeria

It is imperative to know the place of professionalism in the viability of local construction firms (LCFs) in developing countries. This article identified and examined various factors related to professionalism from diverse aspects that influence firms’ viability in the construction industry. From a literature review, 37 variables influencing the viability of local construction firms were identified of which 19 relate to professionalism. 177 staff from LCFs who were awarded building contracts in selected institutions in Nigeria were requested to rate the importance of each viability factor on a 5-point Likert scale. Mean score ratings and principal component analysis were used to identify and summarise the most important factors. Three of the four “extremely important” factors are directly related to professionalism in the construction industry: organisational competence, quality of work and services, and quality of construction work and services, with mean scores of 4.4, 4.31, and 4.30, resources” (9.27%); “improved construction method” (3.24%), and “quality service and satisfaction” (2.84%). These factors substantiate the importance of professionalism in the viability of LCFs and should motivate various professionals in the construction industry to demonstrate their effectiveness in good service delivery and ethics. gemiddelde punt 4.31, 4.30. 11 faktore wat verkry is, is faktore verwant professionaliteit in die konstruksiebedryf. faktore is gemerk: konstruksiemetode” en

It is imperative to know the place of professionalism in the viability of local construction firms (LCFs) in developing countries. This article identified and examined various factors related to professionalism from diverse aspects that influence firms' viability in the construction industry. From a literature review, 37 variables influencing the viability of local construction firms were identified of which 19 relate to professionalism. 177 staff from LCFs who were awarded building contracts in selected institutions in Nigeria were requested to rate the importance of each viability factor on a 5-point Likert scale. Mean score ratings and principal component analysis were used to identify and summarise the most important factors. Three of the four "extremely important" factors are directly related to professionalism in the construction industry: organisational competence, quality of work and services, and quality of construction work and services, with mean scores of 4.4, 4.31, and 4.30, respectively. Out of the 11 component factors obtained, three topmost factors are directly related to professionalism in the construction industry. These factors were labelled: "construction

Introduction
The Nigerian construction industry employs approximately 20% of Nigeria's workforce (National Bureau of Statistics, 2006), making it perhaps the largest employer of construction labour in Africa. The industry accounts for roughly 69% of the nation's fixed capital formation, of which 70% of the net capital investment in Nigeria is for the construction industry (Business Monitor International, 2007). The National Bureau of Statistics (2014) reported that the Nigerian construction industry recorded an average of 3.4% contribution to the GDP from 2010 to 2013. This contribution, though small, has both a direct and an indirect impact on the national economy, as it stimulates the growth of other sectors through a complex system of linkages (Lewis, 2004: 541-545;Alabi, 2010: 605-613).
For example, Oke and Falemu (2009: 873-884) noted that most of the private residential buildings that had collapsed were constructed by LCFs. Olugboyega (1995), Oladapo (2007), and Idoro (2010) all observed that foreign and indigenised contractors dominate the Nigerian construction industry's volume of work capacity, due to the LCFs' incompetence in handling complex projects.
In nations where LCFs have witnessed tremendous progress, there have been studies that involved deliberate identification, measurement, and administration of various construction business performance measures (Chan, Tam & Cheung, 2005: 111-124;Huang 2009: 581-596;Halim, Jaafar, Osman & Akbar, 2010: 28-39). Traditionally, there is more emphasis on construction business performance based on financial criteria, and their main advantage is that they are easily captured and provide a quantitative output. Financial factors are vital to the viability of the construction business, but they need to be supported by non-financial factors, in order to achieve a holistic performance (Mbugua, Harris, Holt & Olomolaiye, 1999;Sonson, Kulantuga & Pathirage, 2017: 516-528). One of these non-financial factors is professionalism, and the characteristics of construction activity and the construction products require that all professionals engaged in the construction process should demonstrate true professionalism. One of the ways to assess this is to identify its place in factors determining the success of construction projects and firms, in general.
This article identifies and examines the importance of various factors influencing a firm's viability in the construction industry, in order to analyse the crucial place of professionalism in the viability of LCFs. The article demonstrates the need for professionalism in the construction industry, bearing in mind the characteristics of construction activity and the products that require professionalism on the part of all participants in the construction process (Construction Leadership Council, 2013;Farmer, 2016;World Economic Forum and Boston Consulting Group, 2016).

Local construction firms
LCFs can be classified into small, medium and large firms, according to their level of capitalisation and annual turnover. Local firms contribute to social and economic development in terms of job formation -entrepreneurship; wealth dispersal; financial effectiveness in deployment of resources; elasticity to market demands; distribution of development; economic and political independence, and innovation (Olugboyega, 1998). They dominate the small mediumscale construction enterprises that are mostly involved in the construction of private residential offices and commercial buildings that is germane to the grassroot economic development of the populace (Olugboyega, 1998;Opoko, 2004: 13-17;Oladimeji & Aina, 2018: 116). LCFs are very relevant as contractors for maintenance work and as subcontractors for construction labour and specialized work items (Ng & Price, 2002: 811-819;Laryea, 2010: 541-545).
Construction business technical competence finds expression in technical strength, structure, depth, capability, and capacity. Highperformance contractors are known to have great experience, thus minimising the technical risk and resulting in the management of the only remaining risk that can minimise their profit. They provide high quality for the lowest possible price, due to their technical expertise. The following factors influence the technical viability of construction business: construction technical expertise (Yu, Kim & Chin, 2007: 131-139); quality of construction work and services (Wang et al., 2010: 979-979); specialisation of construction work (Koksal & Arditi, 2004: 799-807); advanced construction technology (Koksal & Arditi, 2004: 799-807), and a number of high-performing professionals (Ramirez, Alarco & Knights, 2004: 110-117).
Construction safety has become a big concern, because the construction industry worldwide is notorious for unacceptable high accident and fatality rates (Fang, Huang & Hinze, 2004;Ulang, Gibb & Anumba, 2010;Sidumedi, 2009). Construction workers are six times more likely to be killed at work than those in other industries (Odeyinka, Davidson & Olomolaiye, 2005: 905). The following performance factors and measures border on construction health and safety influences on the viability of construction business: incident rate (Odeyinka et al., 2005: 905); accident cost (Fang et al., 2004: 424-432), and availability of safety equipment (Lingard & Homles, 2001: 217-226).

Factors influencing professionalism in the viability of the construction industry
Professionalism is the combination of all qualities that relate to trained and skilled people using consistency and integrity in applying their skills and competencies for the benefit of the community (Aho, 2013: 110;Mcintosh, 2013). This implies that professionalism in the LCFs is expected to strategically benefit the firms, their clients and the community in which they operate. Factors influencing professionalism are factors that influence qualities connected with trained and skilled people in the construction business. These factors include: organisational competence, employee and client satisfaction (Yu et al., 2007: 131-139); quality of work and services (El-Mashaleh et al., 2007: 10-17); reputation of good clientcontractor relationships (Chinyio et al., 1998: 385-395); management of construction site material (Gulghane & Khandve, 2015: 59-64;Alanjari et al., 2014: 1-8); management of construction site labour, plant and equipment (Jarkas & Bitar, 2012: 811-821;Kuroshi & Lawal, 2014: 82-92); predictability of construction cost and time (Aje et al., 2009), and availability of skilled labour (Awe, 2006). These factors are categorised under management of construction operation and emphasise the importance of adequate managerial skills capacity and capability fuelled by organisational competence formation and development in improving construction operation, which is a major goal of professionalism (Silva, Lima & Costa, 2013: 76;Lee, Kim & Lee, 2011: 781).
Professional ethics uphold and influence the quality of construction projects (Abdul-Rahman, Wang & Yap, 2010: 3742-3749). Corruption thrives in the absence of ethics expected to negate corruption-fuelling vices such as immorality, opacity, unfairness, procedural violation, and contractual violation (Shan, Le, Yiu, Chan & Hu, 2017). Professionalism in the construction industry has not been able to curb the menace of corruption, and the industry has been regarded as the most corrupt sector in the world, where corruption has resulted in underperformance, cost overrun, and quality defects (Kenny, 2012: 18-22;Transparency International 2011;Tabish & Jha, 2012: 21-35).
Availability of safety equipment (Lingard & Holmes, 2001: 217-226) and incident rate (Odeyinka et al., 2005: 905-913) are influenced by good professional conduct in upholding the tenants of construction health and safety rules and standard. Professionalism in construction health and safety will be better enhanced through firms' and government's commitment in instituting and enforcing a regulatory framework that will ensure strict compliance with safety regulations and health education to construction employees (Okoye & Okolie, 2013: 76). Although Ozmec, Karlsen, Kines and Andersen, (2015: 275) observed that safety practice communicated and learned within small construction companies was most of the time more a matter of professionalism and individual mastering; firms had limited impact on employees' daily safety practices.
Having identified the various factors influencing professionalism in the viability of construction business, it is necessary to determine their place in the viability of the LCFs.

Research method
The purpose of this research is to identify and examine various factors related to professionalism from diverse elements influencing a firm's viability in the construction industry, in order to determine the place of professionalism in the viability of LCFs. A qualitative research design was used, in which structured questionnaire surveys enable researchers to generalise their findings from a sampled population (Bryman, 2012: 232;Creswell, 2014). In the questionnaire, 37 factors influencing the viability of construction firms were extracted from extant literature and set as the variables of factors influencing the viability of construction firms, out of which 19 were identified as factors that directly influence professionalism in the construction industry. Questions on how important each of the 37 factors are in the viability of LCFs were extracted in their level of importance (Pallant, 2013: 192). Principal component analysis (PCA) was used to reduce these measured variables to smaller factors influencing viability and professionalism. PCA was used, because the Eigenvalues, which explain whether the factors tested had or had not a noticeable effect on people's responses to the variables in the original test, will easily be extracted (Rossoni, Engelbert & Bellegard, 2016: 201;Pallant, 2013: 192).

Sampling method and response rate
From a preliminary study by the authors, a total of 79 new building projects were awarded from 2005 to 2015 in the study area. Primary data were sourced from 59 LCFs with audited financial statements that were awarded building construction contracts by Federal Universities and Federal University Teaching Hospitals. Using purposive sampling (Etikan, Musa & Alkassim, 2016: 2), 23 LCFs in Lagos were selected in preference to Ogun State, due to its vast physical development, strategic location and very high concentration of infrastructural development. In Ondo, 12 LCFs were selected in preference to Ekiti to represent one of the oldest states in the region; the Federal University located there is much larger and older than the Federal University in Ekiti state. In Osun, 24 LCFs were selected in preference to Oyo to represent one of the newest states in Southwest Nigeria. Although the sample size is not valid and not within the recommended sample size of 63 for a population equal to or above 75 (Krejcie & Morgan, 1970: 608), the LCFs with audited financial statements chosen substantiate the size of the sample. Table 1 indicates that there were 59 firms, with 18 in UNILAG, 14 in OAU, 12 in FUTA, 5 in LUTH, and 10 in OAUTHC. The study surveyed managing directors or their representatives and two other professional members of staff who had engaged in construction works in the sampled LCFs. This brings the total number of expected surveyed firms' respondents to 177. However, a total number of 31 firms comprising of 65 respondents' questionnaires were completed, returned and found useful for analysis. This represented a response rate of 36.7% of all participating staff and 53% of the total surveyed firms. According to Ellhag and Boussabaine (1999: 473-480) and Idrus and Newman (2002: 13-19), this is good enough in construction management studies.

Data collection
Campuses with a total number of 59 LCFs of awarded building construction contracts between 2005 and 2015 were surveyed. The drop-and-collect method was used in places were contractors are actively on site, while personal contact interviews were used in areas where there is sparse construction activity. The questionnaire for this study was divided into three parts, which introduced the topic and instructions to be followed by the respondents. The first part elicited general information about the respondents and their company such as years of experience, professional qualifications, years of establishment, construction operation base, average annual cost of construction, location of firms and construction operations, firms' client types, and grades.
The second part, which was made up of 37 variables influencing the viability of LCFs in Nigeria and subtitled survival of construction business, was based on a 5-point Likert scale rating. Respondents were expected to choose the appropriate scale ranging from not important to extremely important, in order to express their views on the level of importance of each of the enumerated factors on the viability of LCFs in the study area.

Analysis method and how to interpret data
The Statistical Package for the Social Sciences (SPSS) version 15 was used to conduct descriptive and inferential statistics of the data, computing the frequencies, mean scores, and standard deviations. SPSS was also used to determine the feasibility of conducting a PCA of the 37 factors influencing LCFs' viability survey results.
A 5-point Likert scale was used to rank the importance of the 37 factors. Likert-type or frequency scales use fixed choice response formats and are designed to measure attitudes or opinions (Bowling, 1997;Leedy & Ormrod, 2014 For analysis of the internal reliability of the factors in the questions on viability, Cronbach's alpha values were tested and acceptable values of Cronbach's alpha would range from 0.70 to 0.95 (Tavakol & Dennick, 2011: 53-55). A cut-off value of 0.7 was adopted in this study. The optimal inter-item correlations mean (factor loadings) should range from 0.2 to 0.4, in order for the factor to be reliable (Pallant, 2013). However, this study adopted a value of 0.4 and above.
KMO test values vary from 0 to 1, values above 0.5 are recommended as being desirable for applying factor analysis (Field, 2000). Bartlett's sphericity test was also performed, and a statistically significant Bartlett test (p <0.05) indicates that sufficient correlations exist among variables, indicating that analysis can continue (Field, 2000).
In PCA, when the number of variables (measures) is between 20 and 50, it is more reliable to use Eigenvalues to extract factors, as it makes interpretation simpler (Johnson & Wichern, 2007). The highest Eigenvalue of data in each component is, therefore, the principal componentthat is retained to form a set of few new variables.

Limitations
Findings in this study may not be generalised, as the study was not conducted across Nigeria.

Respondents' profile
The highest percentage of respondents was construction professionals (36.9%), followed by contract managers (20%), and site managers (29.2%). Approximately 50% of the LCFs surveyed had over 10 years' experience, and over 70% of the firms have been in operation for over 10 years. In addition, over 50% of the firms have executed over 11 construction projects and most of the firms operate in Nigeria alone (86.2%) and are mainly patronised by both the private and the public sectors in Nigeria. Although a few of them did not give the detail of their turnover, 52.3% of the respondents claimed that their firms had a turnover of between N10 million to N150 million ($54.6 thousand to $815.2 thousand) in 2014, while 13.8% of the firms had a turnover of over N150 million. These characteristics suggest that respondents have the exposure and long-term experiences to be able to give substantial information that could help in making useful inferences and deductions on factors influencing the viability of LCFs.  Field (2000). These results suggest that PCA could be conducted with the data. An overview of the MS and ranking of factors influencing the viability of LCFs in Table 2 shows that all the factors have MS greater than 2.9 and the average mean is 3.72. This infers that all the identified factors are at least "important factors" and, on average, "very important factors" influencing the viability of LCFs. Three of the four "extremely important" factors are professionalism-influencing factors. The first 10 factors had MS equal to or greater than 4.00, indicating "very" and "extremely" important factors of all the identified viability-influencing factors in Table 2. These factors cut across clients' satisfaction, and financial perspective of the construction business. Six of these factors are clients' satisfaction-based perspective, while three are finance based. Clients' satisfaction-based perspective factors influence professionalism: organisational competence ranked first, quality of work and services ranked third and quality of construction work and services, and availability of skilled labour ranked fourth and fifth, respectively. Furthermore, reputation of good client-contractor relationships and availability of artisans and craftsmen, both of which ranked ninth, are also clients' satisfaction-based perspective. The employee satisfaction factor ranked eighth could either be influenced by either or both client satisfaction and finance-based factors. These factors emphasise meeting values and expectations of customers and this is a core definition of professionalism (Aho, 2013: 110-114). Professionalism can satisfy time, cost and quality expectations in the execution of construction projects when well harnessed, and it can be improved by developing competency through manpower development (Lee et al., 2011). The combination of transformational leadership and technology (a good display of professionalism) has been observed to lead to satisfaction of employees and to increase workplace efficiency, resulting in higher performance (Misra & Srivastava, 2018: 117). Abdul-Rahman et al. (2010: 3742-3749) noted that the majority of quality-related issues are significantly influenced by the human factor, a function of professional ethics in professionalism. Meanwhile, in Table  2, out of the total 37 identified factors influencing viability, 19 factors directly influence professionalism in LCFs. This represents 51.35% of the total identified factors. It can be inferred from these findings that factors influencing professionalism largely influence the viability of LCFs.

Principal component analysis for factors influencing professionalism and the viability of LCFs
The 37 variables measuring the viability of LCFs were subjected to PCA to study the trend of inter-correlations between variables and to group these variables with similar characteristics into a set of reduced factors according to the hidden components in the collected data. The results report the factor extraction, Eigenvalues, correlation, and interpretation.
In Figure 1, the scree plot consists of the Eigenvalues and the data points above the break (point of inflexion), which are the components that are meaningful to retain for rotation. Using a cut-off value of initial Eigenvalues greater than one (>1.0), 11 components explain a cumulative variance of 73.75%.
The scree plot confirms the finding of retaining 11 components. As a result, components 12 to 37 are not significant and thus not included for rotation. Table 3 shows the 11 component factors that are meaningful to retain. Factor one explains 25.052% of the total variance; factor two, 8.7685%; factor three, 7.661%; factor four, 5.483%; factor five, 4.962%; factor six, 4.527%; factor seven, 3.999%; factor eight, 3.713%; factor nine, 3.602%; factor ten, 3.096%, and factor eleven, 2.890%. 37  36  35  34  33  32  31  30  29  28  27  26  25  24  23  22  21  20  19  18  17  16  15  14  13  12  11   The grouping of variables was based on their factor loadings. A factor loading indicates the degree of association of a variable with the component and the percentage variance of the component that is explained by the variable. Variables with the highest factor loading in one component belong to that component; the highest factor loading must be of significant value of 0.4 and above (see Table 4). Correlation exists between variables 10, 11, 12, 13, 19, 30, and 37, as they are loaded onto Component 1, referred to as construction resources. Correlations were identified between variables 31, 32, 33, and 34, which are loaded onto Component 2, referred to as improved construction method. Variables 12, 14, 15, and 16 show correlation as they are loaded onto Component 3, referred to as quality service and satisfactions. Correlations exist between variables 9, 29, 35, and 36, which all loaded onto Component 4, referred to as health and safety. Correlations were identified between variables 17, 24, 25, 26, and 30, which are loaded onto Component 5, referred to as availability of skilled labour. Variables 3, 4, 5, and 23 show correlation as they are loaded onto Component 6, referred to as corruption and loan. Variables 17, 27, and 28 show correlation as they are loaded onto Component 7, referred to as government policy and procurement. Variables 1, 6, 7, 8, and 9 show correlation as they are loaded onto Component 8, referred to as cash for construction work. Variables 21 and 22 show correlation as they are loaded onto Component 9, referred to as tax and inflation. Variables 20 and 24 show correlation as they are loaded onto Component 10, referred to as firm's impact on the community. Variables 2, 5, and 24 show correlation as they are loaded onto Component 11, referred to as profit margin.  Table 4). These observations stress the significant relevance of professionalism in the viability of LCFs. To achieve the specific aim of this study, only the 7 component factors having factors influencing professionalism (component factors 1 to 6 and 10) are discussed below.

*factors that directly influence professionalism
In Factor 1: Construction resources (Component 1), the variables with high loading are project organisational structure (0.782); management of construction site labour, plant and equipment (0.749), and management of construction site material (0.691). Gulghane and Khandve (2015: 59-64) and Alanjari, Mwakali and Hansson (2014: 1-8) emphasised the importance of adequate management of construction resources (material, labour, plant, and equipment) in the viability of construction firms; this is also a major goal of professionalism. Each construction project should be well planned for the overall construction firm's survival. It requires professional competence to harness construction labour, material, plant, and equipment on each project in such a way as to gain construction cost and time (Misra & Srivastava, 2018: 109-122). Che Wan Putra, Ahmad, Abd Majid and Kasim (1999) as well as Edwards and Holt (2001: 417-427) noted in summary that the result of improper handling and managing material, plant, and equipment on site during a construction process will influence the total cost, time, and quality of the construction work. It is expected that a well-organised and -positioned construction project management structure on each site will go a long way in representing and protecting firms' interest well in effective management of all its resources for improved production.
In Factor 2: Improved construction method (Component 2), the variables with high loading are advanced construction technology (0.884); specialisation of construction work (0.794), and number of high-performance professionals (0.779). In the United States, Koksal and Arditi (2004: 799-807) found advanced construction and specialisation in construction as essential factors of the 11 factors used in measuring a company's healthiness. The three professionalisminfluencing variables in this component are essential to improving construction works delivery and they are core improvement drive and expectations in professionalism to attain a better offer to clients. This implies that high-quality construction products and material can be harnessed and used at the lowest possible price, due to good technical expertise (Misra & Srivastava, 2018: 109-122).
In Factor 3: Quality service and satisfaction (Component 3), the variables with high loading are quality of service and work (0.839); organisational competence/client satisfaction (0.786), and employee satisfaction (0.604). El-Mashaleh (2003) and El-Mashaleh et al. (2007: 10-17) acknowledge that customer satisfaction is an important performance, while employee satisfaction was noted by Nudurupati et al. (2007: 667-676) in a study on performance measurement in the construction industry in the United Kingdom. These indicators show the effect of clients' and employees' satisfaction and quality of service delivery on the viability of construction firms obtained in this analysis. This is also directly related to the goal of professionalism in the construction industry. The satisfaction of customers and other interested parties is necessary for the success of LCFs. Increasing the satisfaction of customers and stakeholders through effective goal development, cost reduction, productivity, and process improvement has proved to be essential for organisations to stay in operation (Oakland & Marosszeky, 2006). Professional ethics is an important branch of professionalism and a prerequisite in attaining sustained and acceptable quality in construction output (Abdul-Rahman et al., 2010: 3742-3749).
In Factor 4: Health and safety (Component 4), the variable with high loading is incident rate (0.735). There has been great concern on incident rates in the construction industry. Construction has been noted for the "unacceptable high rate of death, injury and ill health associated with all types of projects" (Cheetham, 2000: 442-451). The Construction Design and Management Regulation 1994 has charged construction professionals to reduce incident rates by demonstrating a higher level of professionalism through designing out and minimising risk associated with the construction, maintenance, and demolition of buildings. The Construction Health and Safety Summit 2001 (HSE, 2003) published a discussion document setting out ideas for improvement and change. The document is targeted at everyone connected with the construction industry in the United Kingdom and highlights the need to change attitudes to health and safety, in order to prevent accidents (HSE, 2002). Workers' behaviour is an extremely important factor in workplace safety, as many accidents are often caused by insecure actions that are combinations of human behaviour (Rahmana, Shamsuddin & Ghania, 2015: 624). Safety is expected to be a matter of professionalism and individual mastering, as engaging incompetent personnel and nonvibrant professionals are among the causes of accidents (Lubega, Kiggundu & Tindiwensi, 2000;Ozmec et al., 2015). It will take a high level of professionalism to inculcate a safety noble attitudein order to drastically reduce incident rates geared towards ensuring a virile construction industry.
In Factor 5: Availability of skilled labour (Component 5), the variables with high loading are availability of artisans and craftsmen (0.775), and availability of skilled labour (0.520). This factor underscores the importance of the availability of all relevant construction skilled personnel, artisans and craftsmen of all trades and professions in executing construction works. Two of the most critical challenges facing the construction industry are the limited number of skilled labour and the increasing need for productivity and cost effectiveness (Hegazy et al., 2000;Bala et al., 2009: 251-259). Going by the definition of professionalism by Mcintosh (2013), which defined Professionalism as "the combination of all qualities that are connected with trained and skilled people", the availability of skilled labour including artisans and craftsmen injects true professionalism in the construction industry, thereby improving productivity.
In Factor 6: Corruption and loan (Component 6), the corruption variable has a high loading of 0.706. The construction industry is perceived to be more susceptible to unethical tendencies, due to its complex features and fragmented operations (Oyewobi, Ganiyu, Oke, Ola-Awo & Shittu, 2011: 175-182). Corruption is considered unethical professional behaviour and it is expected that professional ethics, an important feature of professionalism in the construction industry, should curb the menace of corruption. Adeyemo and Amade (2016: 1-14) recommend that construction professionals should uphold the ethics of their profession and shun corruptible tendencies such as bribery to win a contract, avoid overbidding, cover, extra and false pricing during the tendering stage. A demonstration of required professional ethics will mitigate construction project failure, ensuring more healthy construction firms. Usman, Inuwa and Iro (2012: 124-128) noted that most of the construction firms fail as a result of corruption.
In Factor 10: Firm's impact on the community (Component 10), firm's impact on the community variable has a high loading of 0.613. Professionalism improves production, as observed in the preceding discussion, ultimately leading the LCFs to adequately meet their profit drive and able to fulfil the corporate social responsibility that can trigger growth and development in both the community and the firm (Salama, Anderson & Tom, 2011). This resembles Aho's (2013: 110-114) definition of sustainable professionalism, which means consistency and integrity in applying one's skill and competencies for the benefits of the community.

Conclusion
This study identified and examined various factors closely related to professionalism in LCFs. These factors were obtained from factors determining the viability of construction firms. The study analysed the level of importance of 37 factors influencing the viability of construction firms based on extant literature via a questionnaire requiring respondents to rate the factors as they were perceived. Of all the 37 factors, 19 are factors directly related to professionalism. Seven of the first 10 factors, which are considered "very important" and "extremely important", directly influence professionalism. Each of the 7 factors had a weighted average score higher than 3.90. These factors are organisational competence/client satisfaction, quality of construction work and services, availability of skilled labour, employee satisfaction, reputation of good client-contractor relationships, and availability of artisans and craftsmen.
Correlation of the various factors influencing LCFs' viability using PCA identified 11 component factors, of which 7 have high factor loadings of various factors that majorly influence professionalism in the construction industry. These labelled 7 component factors and their various factors influencing professionalism are "construction resources" factors V10 to V13, V30, and V37; "improved construction method", factors V31 to V34; "quality service and satisfaction", V12 and V14 to V16; "health and safety", V3; "availability of skilled labour", V17, V24 to V26, and V30; "corruption and loan", V23, and "firm's impact on community",V20.
It is obvious from the results of the analysis and discussion that the place of professionalism in LCFs is cardinal and significantly influences the viability of LCFs. This should trigger a frantic call to various professionals in the construction industry to demonstrate their effectiveness in good service delivery and ethics. It is important that professionals put more effort into becoming key players in formulating policy recommendations, initiating technical standards and regulatory framework for LCFs. Professionals should enhance their relevance and value in strategic identified areas in improving the healthy growth and development of local construction business, most of which are small-scale industry. Meanwhile, small-scale industries are generally noted for catalysing grassroots community and national development and professionals can harness local construction firms to take the lead.

Further research
Further research purposely to determine the place of professionalism on viability based on identified professionalism-influencing factors in the construction industry at large is recommended. This study can also be conducted in other African countries for comparative purposes and a more robust perception of the place of professionalism in the viability of local and foreign construction firms.