• W.G. Tomko, Inc

    Committed to the Future

W.G. Tomko, Inc. is a premier, full mechanical contractor providing reliable, efficient, and outstanding service from project bidding to on-time completion. Our areas of operation include Pennsylvania, Ohio, Virginia, West Virginia, Maryland and Washington D.C. W.G. Tomko Inc. offers a range of services including HVAC, sheet metal, pipe and plumbing systems, design, site utilities and service. Our full time in house professional engineer gives us the ability to work closely with owners to provide design build, cost conscious projects focusing on energy savings techniques and LEED Green technologies, all while maintaining a safe work environment. After more than half a century of providing top quality work through planning and dedication, we stand ready to meet all of our building requirements. Our unique blend of expertise also services the utility community with underground gas and water installations. W.G. Tomko, Inc. supports the needs of the Oil & Gas industry with our ability to fabricate Pig Launchers, Receivers and Spool Pieces. Our clients appreciate the dependable and quality deliverables we offer, their satisfaction is our goal and commitment.


Corporate Headquarters

2559 State Route 88, Finleyville, PA 15332


Baltimore/Washington D.C. Branch Office

3428 Colvin Street, Alexandria, VA 22314

We have the ability to support projects outside the Western PA market

West Virginia





Washington D.C.


We have been relying on W.G. Tomko as our design/builder Mechanical Contractor for the past ten years. They continually produce positive results and assistance with business development and jobsite construction activities. We rely on their significant design/estimate capability to assist in the development of conceptual design/build proposals which are the very cornerstone of our business. They are able to accurately quantify the work, and provide us with guaranteed hard dollar estimates.

W.G. Tomko continues this excellent service once the proposal has become a “Project”. Their project management and jobsite supervision help in stream lining schedules and to achieve fast tract delivery of the project.

It is a pleasure, and a privilege to have this company on our team. The Ownership is always available to address any matter professionally and productively, and truly promotes the spirit of team play.

I can say without reservation that out association with W.G. Tomko has added confidence in our delivering projects to our clients on time and of the highest quality., and has been a significant resource to our business plan.

Leonard Tsupros, PresidentCarl Walker Construction, Inc.

For the past three years FSS and W.G. Tomko have developed a working relationship that is built on honesty and integrity.

It has been our honor to work with W.G. Tomko on several government projects in Pittsburgh, PA, Morgantown, WV and Ft. Belvoir, VA. What you can expect from W.G. Tomko, Inc. is a streamlined, honest process built upon open communication and thorough market/industry knowledge. They are a mechanical contractor to be relied upon for the entire project.

We trust W.G. Tomko’s employees as our professional confidants and we especially look forward to our continued relation on future projects.

John P. Mroz, PresidentFacility Support Services, LLC