Welding Contractors

ASME Welding

Since 1972, M&M Welding and Fabricators has been the go-to company for hiring professional ASME welding contractors in the MD, VA, and DC areas. We are a welding company dedicated to safety, precision, and accuracy.


Don’t waste time hiring other companies who may risk you spending thousands of dollars in repairs for incomplete work. 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 Northern Virginia properties, our experts are on-time, knowledgable, and efficient from the start to the end of every job.


We approach every job with positivity and a “can-do” attitude. This has taken us to many jobs and we have invested a lot of time into learning the trade from A to Z. If you think it, our experts can handle it.

ASME Certified

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

All Metal Types

We weld aluminum, steel, copper, nickel, and more. Our experts can handle the job!

Woman Owned

We are woman owned and operated, 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

Aluminum Welding

Get the Best of Stamp Welding and Aluminum Welding

The professional welders at M&M Welding and Fabricators handle any type of metal like aluminum that needs welding. We are part of a “go anywhere, do anything” mindset, which means our professional welders on staff have learned how to accurately and precisely weld all metal types for any job requirement or request.


We are the expert welders people go to for ASME welding, code welding, X-ray welding, S stamp welding, U stamp welding, R stamp welding and more. Our welders are only one piece of the backbone of our crew, and with each expert we employ we are able to better serve you, from technical questions to minor concerns. M&M Welding and Fabricators employs a team of welders that work for you and we achieve the high standards you expect from outside contractors.


Whether you have aluminum welding needs or are looking for welders for steels, nickels, aluminum welding near you or more, we have you covered. Call us!

Welders in Maryland

Code Welding 

The Code Welding by Your Favorite Mechanical 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 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 have been around long enough to know every aspect of welding that is currently available and everything that goes along with that.


Trust our fabricators to handle not only the job you need but to spot and recommend solutions for other work that may need done. We don’t boast “go home, we got it” for just any reason — it is on our equipment because we truly do have it all covered.

We are expert welders to provide you welding services like:

  • H Stamp Welding

  • PP Stamp Welding

  • U Stamp Welding

  • X-Ray Welding

  • S Stamp Welding

  • R Stamp Welding

  • ASME Welding

  • Aluminum Welding

  • Code Welding

Contact the Welding Company That Provides 24/7 Emergency Welding Service

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 a 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 welding needs you have like aluminum welding, X-ray welding, 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 Welders

Welding Company

Welding Safety Trainings are Always at the Top of Our Lists

Part of our dedication at M&M Welding and Fabricators is to keep our team engaged, aware, and growing. We host safety trainings and equipment trainings to stay refreshed and stay sharp.


We care about our employees, your property, and more when we come on for a welding job. It’s why we are the go-to welding company: because our clients know our dedication is thorough and our actions are always intentional for everything we do.


We only want to give the best to our clients, so we have learned how to do everything in welding, fabricating, and mechanical contracting. Contact us today to discover the power of a professional welding company that works for you.


Our team members are held to the same standards and ethics of your internal employees, so there is nothing to lose and a lot to gain with the members from M&M Welding and Fabricators.

Just a Few of Our Welding Certifications


M&M Welding and Fabricators holds the following Certificates of Authorization from the American Society of Mechanical Engineers (ASME) and the National Board of Boiler and Pressure Vessel Inspectors (NBBPVI)

“R” Repair Stamp

“PP” Pressure Piping

“H” Heating Boilers

“S” Assembly of Power Boilers

“U” Pressure Vessels

Talk to Us Today to Discuss Our Welding and Fabricating Services