Welcome to M&M Welding

You don’t put up with careless, incomplete, or overly expensive work product from your in-house employees, so why would you tolerate it among your outside vendors? Hopefully, you wouldn’t. In mechanical contracting, the stakes are huge — financially and operationally. Unless a job is done properly—the first time— you stand to lose an inordinate amount of both days and dollars. You can afford to lose neither. That’s why you should choose the security, the reliability, and the expertise that comes with an extensive record of success spanning 45+ years in the business.
In short, that’s why you should choose M&M Welding & Fabricators, Inc. for all of your heating and cooling needs. M&M is an ASME-certified, woman-owned and operated, unionized, multi-trades company that specializes in offering a complete and responsive turnkey technical operation.The majority of M&M’s field and office personnel have been with the firm for a decade or more, while a handful have been a part of the M&M family for 30-plus years. And, there are several family teams dedicated to M&M and its mission to deliver superior service. So you know you’ll always get the right answers, and you’ll never encounter anything but prompt, competent service.
Because M&M owns, operates and services its own fully up-to-date collection of construction equipment, you will never face delays or pay the high price for third-party equipment rentals.
With M&M, you have the right people, with the relevant expertise, 45+ years of success, and the highest quality equipment. That means the job gets finished right, on time — the first time.

Mechanical Specialties

Burner Conversions – Gas/Oil
Refractory, Brickwork, and Insulation
HVAC Retrofits
Certified ASME Welding
Power piping

Certificates of Authorizations

“R” Repair Stamp
“PP”Pressure Piping
“H” Heating Boilers
“S” Assembly of Power Boilers
“U” Pressure Vessels.

Minority Certifications

Maryland Department of Transportation (MDOT MBE 03-386)
Washington Metropolitan Area Transit Authority (WMATA DBE 786)
Prince Georges County Government (11-7619)
Prince George's County Public Schools (811)

Contact us now for a free quote on your project