T.N. Walker, Inc. is a trusted wholesaler and installation contractor specializing in HVAC, plumbing, and fluid management systems. We supply and install equipment, parts, and materials for complex projects across oil & gas, transportation, and commercial infrastructure—ensuring all work meets precise engineering specifications.
We also provide highly skilled technical staffing and engineering support, including third-party design and commissioning for major projects.
Serving government, education, healthcare, commercial, and sports & entertainment sectors, we deliver reliable expertise and turnkey solutions across every phase of a project.
T.N. Walker, Inc. delivers high-quality products and services through an experienced management team committed to meeting contract specifications while maintaining competitive pricing.
Our centralized management approach streamlines every phase of a project, including submittals, service coordination, product delivery, and pre-installation storage and handling. Once a contract is awarded, we establish clear schedules and deadlines—providing clients with a single point of contact for efficient communication and seamless follow-up.
By eliminating the need to coordinate with multiple vendors or hold frequent group meetings, we significantly reduce administrative burden. This efficiency, combined with cost-effective pricing, results in measurable savings and improved project outcomes.
T.N. Walker, Inc. remains actively involved throughout the project lifecycle. We uphold all established schedules, specifications, and contract terms through consistent oversight, including attendance at project progress meetings (as needed) and close monitoring of manufacturing, service execution, and delivery timelines.
T.N. Walker, Inc. is certified as a Minority-Owned Business with the U.S. Small Business Administration as a socially and economically disadvantaged firm under the 8(a) program. T.N. Walker, Inc. is also certified by the Commonwealth of Pennsylvania-Department of General Services, the Western Pennsylvania Minority Supplier Development Council, Allegheny County and the Port Authority of Allegheny County.

KEY PERSONNEL
Thomas N. Walker, President/Owner
T.N. Walker, Inc. is controlled by its President, Thomas N. Walker, who currently maintains a 100% stock ownership position.
CAPACITY
T.N. Walker, Inc. has averaged over $ 5 million in revenue over the last four (4) fiscal years.
FINANCIAL DATA
Financial data is available upon request
Duns Number: 10-890-6272
CONTRACTING EXPERIENCE
T.N. Walker, Inc. has successfully completed numerous construction projects over the last thirty one (31) years of operation. Some major clients of T.N. Walker, Inc. include the U.S. Army (various bases in NY, NJ, MD, DE, VA and WV), Army Corps of Engineers, City of Pittsburgh, UPMC Children’s Hospital, David L. Lawrence Convention Center, Penn State University, UPMC Northwest, Carnegie Mellon, University of Pittsburgh, Duquesne University, Clarion University, Slippery Rock University, Edinboro University, Various Public Schools, Verizon, PennDot, Heinz Stadium, PNC Park, Highmark, and the Port Authority of Allegheny County. These are a few of our most recent projects. However if you require additional references, please do not hesitate to contact our office.
Construction related services include Management Contracting (MC), Construction Management (CM), Design Build (DB), Design Manage Construction (DMC), General Contracting (GC), Project Management (PM) and Program Management (PM) and Program Management processes required to ensure the most effective attainment of client’s goals and objectives in meeting the project’s plans and specifications.. T.N. Walker, Inc. utilizes cost schedule controls which provide for accuracy through analytical systems.
CAPABILITIES
T.N. Walker, Inc. has approximately 3-25 full time employees depending on project construction status. The firm has successfully completed turnkey construction projects over $3 million per project.
423730 – Refrigeration Equipment and Supplies
238220 – Plumbing, Heating and Air-Conditioning Contractors
213111 – Drilling Oil and Gas Well
213122 – Support Activities for Oil and Gas Operations
333132 – Oil & Gas Field Machinery and Equipment
237110 – Water and Sewer Line and Related Structures Construction
236210 – Industrial Building Construction
237990 – Other Heavy and Civil Engineering Construction
238140 – Masonry Contractors
238910 – Site Preparation Contractors
238990 – All Other Specialty Trade Contractors
333924 – Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing
541330 – Engineering Services
561320 – Temporary Help Services
562910 – Remediation Services
