Management has a great effect on the job-site performance of construction skilled workers. This paper discusses "An assessment of the impact of work environment on the construction skilled workers in Imo State, Nigeria. It was carried out with the aim of assessing the efficiency and productivity of skilled workers on construction environment. The questionnaires and field approach was the method of study used. Data for the study were collected through secondary and primary sources and were analyzed by means of simple percentage, severity Index (likert scale) and productivity formula. The study found that certain groups of skilled workers are more productive on public construction work environment while others are more productive on private construction work environment. The study also found out that the percentage agreement between public and private skilled workers in the ranking of productivity improvement factors on construction work environment is very low (16.67%). The study equally identifies and documented productivity improvement factor of skilled workers on building construction site. The study concluded that skilled workers on building construction site environment are productive and recommended good motivation/incentives scheme, quality professional management, inspection/supervisions and adequate supply of tools/materials as criteria factor for improvement of productivity on construction work environment.