M&M Welding and Fabricators, Inc.

M&M Welding and Fabricators, Inc. is a woman-owned, turnkey multi-trade mechanical contractor based in Mt. Airy, founded in April 1972 and serving Maryland, Virginia and Washington, DC. Its commercial, industrial and institutional work covers boiler and burner installation, repair, replacement, retubes and conversions, cooling towers, chillers, underground piping, fire protection, commercial HVAC, custom welding and metal fabrication. An in-house insulation division handles pipe and mechanical equipment insulation, and rental boilers are available around the clock for emergencies. Preventive maintenance contracts and 24/7 emergency service are offered. The company holds ASME and National Board credentials and is fully licensed and bonded in Maryland, Virginia and DC. This is commercial work, so homeowners should confirm it takes residential jobs. Rated 4.6 from 11 Google reviews, 10 of them five stars.