Celebrating 105 years on the Gulf Coast

A company built on history and tradition

James B. Donaghey, Inc. is a full-service, self-performing heating, ventilation, air conditioning, piping and plumbing mechanical contractor. Our mechanical construction experience and expertise encompasses all types of industrial, institutional and commercial projects.

105

Years in business — family-owned since 1921

4

Gulf Coast offices — Mobile, Pensacola, Panama City & Gulfport

35,000+

Sq ft of in-house fabrication shops

.72

EMR 2023–2025

Who we are

Four generations of mechanical contracting

In 1921, James B. Donaghey opened a plumbing repair and contracting business in Mobile, Alabama. The firm grew into commercial and industrial work, added heating in the 1930s and became a regional leader in central air-conditioning in the 1940s. In 1958 it reorganized as James B. Donaghey, Inc. Mechanical Contractors, adding a sheet metal shop to deliver complete mechanical installations.

Our work is grounded in solid engineering methodology, BIM/VDC prefabrication and a self-performing workforce of sheet metal mechanics, pipefitters, plumbers and professional engineers. The result is logical, cost-effective building systems — delivered on schedule, in a safe, professional manner.

Services

  • HVAC — new construction, retrofit and central plants
  • Design-build / design-assist
  • Sheet metal fabrication & industrial ventilation
  • Pipe fabrication, process piping & underground
  • Plumbing and medical gas
  • Boiler plants and central energy plants
  • Energy optimization and commissioning support
  • Preventive maintenance and facility retrofits

Capabilities

Self-performed mechanical construction

From the central plant to the last run of duct, our own crews fabricate and install it — backed by in-house sheet metal and pipe fabrication shops.

Fabrication

Built in our own shops

Our design-build / design-assist team uses BIM and VDC to prefabricate in our own shops, so owners can count on us to meet the schedule and the budget.

  • 35,000+ sq ft of in-house sheet metal and pipe fabrication shops
  • Automated duct coil line, laser cutters and multiple corner and TDF machines
  • SMACNA-standard rectangular duct, fittings and assemblies in galvanized, stainless steel and aluminum
  • Automated pipe profiler and automated welding machine, loaded straight from BIM or CAD files
  • Pipe spools, racks and assemblies in carbon steel, stainless steel, aluminum and copper

Off-site fabrication cuts field labor, jobsite congestion and rework. Work leaves the shop quality-checked and sequenced for just-in-time delivery.

Markets served

Trusted across the Gulf Coast

Healthcare, military, industrial, education, gaming and government work — plus commercial buildings, multi-story facilities, hospitality, communications and manufacturing plants across the Gulf Coast. Named 2014 Specialty Contractor of the Year by the Alabama Subcontractors Association.

Safety

Zero injuries is the goal on every job

Safety is not a policy at James B. Donaghey, Inc. — it is part of the culture. Every employee holds at least OSHA 10-hour training, superintendents run weekly toolbox meetings, and AGC has recognized our safety record 14 consecutive years (2013–2026).

Let’s talk about your next project

Design-build, design-assist or plan-and-spec — our estimators are ready to help.