Welding Services Mount Airy, MD

ASME Welding - H stamp, PP Stamp, S stamp, and U stamp welding

Since 1972, M&M Welding and Fabricators has been the go-to company for hiring professional ASME code mechanical contractors in the Metro-DC area. We are an ASME welding company dedicated to safety, precision, and quality.

M&M Welding and Fabricators is trusted, reliable, and available for every job, large and small, for any material type. We have been hired for complex and sensitive jobs for over 45 years because we have proven we are the welding company that can handle any fabrication. From Washington, DC government facilities to smaller properties, our experts are on-time, knowledgable, and efficient from start to finish.

And also, we offer these services aluminum welding, u stamp welding, s stamp welding, ASME welding, r stamp welding, pp stamp welding.

Our Industrial Welders Provide the Following Services

We Travel Throughout the DMV Area for Welding Services

Washington, DC
Northern Virginia

ASME Certified

We are National Board and ASME Certificate Holders of “R”, “H”, “S”, “PP”, and “U” stamps.

Material Types

We weld carbon steel, stainless steel, aluminum, and more. Our experts can handle any job.

Certified WOSB

We are a certified woman-owned small business and proud to be one of the top welding companies in the area as such.

Full Fabrication Shop

With a complete full fabrication shop, we can provide Catwalks, Deck Grating, Ladders, Steps, Hand Rails, and more.

Talk to Us Today to Discuss Our Welding and Fabricating Services

Trusted ASME Code Welding Contractors

The aim of M&M Welding and Fabricators was always to be the one-stop-shop for any mechanical need with our professional code welding contractors. We are the expert industrial welders people go to for ASME code welding, X-ray welding, R stamp welding, aluminum welding, and more.


We fuse a variety of experience, positivity, can-do attitude, and hard work ethic into maintaining and growing our skill set each and every year. 


From tackling jobs for public school systems to handling requests from the Department of Defense, we are the trusted commercial welders to handle any job in the DC and Maryland area. We bring reliable welding experience, accountability, and high quality. 


Trust our fabricators to recommend quality solutions while on site. We don’t boast “go home, we got it” for just any reason — we are dedicated to the job, to our clients, and to satisfaction guaranteed. 


Our Mechanical Contractors Provide 24/7 Emergency Welding Services

When the unexpected happens, M&M Welding and Fabricators is available to get you back where you need to be. Our teams are available to work during the off-hours when the unexpected strikes and you don’t have the tools to repair.


We can be on-site 24/7 in order to keep you running, no matter if it is the weekend or the middle of the night. Part of being an MD, VA, and DC company means caring about all of our neighbors, no matter what state you work in or where things go wrong. We care for our area, and we care for you.


Give us a call or fill out our online form to request service information today. Whatever mechanical contracting or welding service needs you have, we can give you an overview of the process and time commitment and can let you know how we can stay on-time with your deadlines and within your specific welding requirements.

M&M Welding and Fabricators Put Safety First

Part of our dedication at M&M Welding and Fabricators is to keep our team engaged, aware, and up-to-date on the latest safety practices. We host safety trainings and equipment trainings regularly for all team members.


We care about our employees, your property, and completing a quality welding job. It’s what has made us the go-to welding company for large-scale, commercial welding jobs in DC and Maryland. 


Our experience spans decades for commercial welding, fabrications, and all mechanical contracting jobs. Our employees uphold a high standard of ethics and maintain a strong work ethic throughout every job.


Give our professional welding company a call to see what we can do for you, today. 

Welders in Maryland