M and M Welding

  • About M&M
    • M&M Profile
    • M&M History
    • M&M Team
    • M&M Affiliations
  • Services
    • Boilers & Burners
    • Cooling Towers
    • Underground Piping
    • Chillers
    • Commercial HVAC
    • Fire Protection
    • Welding/Metal Fabrication
    • Additional Specialties
  • Contact Us

     

mandm banner

Multi-Trade Mechanical Contractor

Trusted for Over 50 Years in MD, VA, and DC

Our Services

Boilers & Burners

Click Here to Learn More About Our Boiler & Burner Services

Cooling Towers

Click Here to Learn More About Our Cooling Tower Services

Underground Piping

Click Here to Learn More About Our Underground Piping Services

Chillers

Click Here to Learn More About Our Chiller Services

Commercial HVAC

Click Here to Learn More About Our Commercial HVAC Services

Fire Protection

Click Here to Learn More about our Fire Protection Services

Welding/Metal Fabrication

Click Here to Learn More About Our Welding & Fabrication Services

Additional Specialties

Click Here to Learn More About Our Additional Services

keep up with some m&m's projects and other company news on our various social media platforms

 

M&M Welding and Fabricators, Inc.

Our Clients

We consistently deliver precise, durable, and innovative solutions, ensuring our clients receive impeccable welding results in every project.

  • Boland
  • Leidos
  • NAVFC
  • NIST
  • AOC
  • GSA
  • WMATA
  • Department of Defense
  • MD DGS
  • Vicinity
  • UMD
  • Montgomery College
  • MCPS
  • Johnson Controls
  • Engie
  • MWAA
  • DC Courts
  • Dept. of Navy
  • Dept. of Energy
  • MDOT MTA
  • HCPSS
  • St. Mary's County
  • NOVA
  • GMU
  • Gallaudet
  • DPSCS
  • M&T
  • Potomac Oaks
  • MC Dean
  • NIH
  • Sibley Hospital
  • Shady Grove
  • HCC

Certifications

M&M Welding and Fabricators, Inc. 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

 

ASME Certified

“Go Home…We Got It” – Muggs Mullican       American Flag

M and M Welding

M&M WELDING AND FABRICATORS, Inc.

2701 Back Acre Circle
Mt Airy, MD 21771

Tel: (301) 948-9330

Fax: (301) 948-7275

Contact Us

SERVICES

  • Boilers & Burners
  • Cooling Towers
  • Underground Piping
  • Chillers
  • Commercial HVAC
  • Fire Protection
  • Welding/Metal Fabrication
  • Additional Specialties

CONNECT WITH US

     
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