Tri-M is a family owned cleaning company from the City of Quincy, MA.

Tri-M Maintenance, Inc.

Tri-M Window Cleaning

Commercial & Residential

Tri-M Maintenance, Inc. got our start in 1978 primarily as a window cleaning service. Over the past 30 years, Tri-M has grown into a full service janitorial operation but window cleaning still remains the backbone of the business. From Boston through Metro West, to the South Shore and Cape Cod, Tri-M is your local solution to clean windows.

CURRENT TRI-M CUSTOMERS

    CORPORATE OFFICES BUILDINGS
    APARTMENTS AND CONDOMINIUMS
    MEDICAL FACILITIES
    BANKING FACILITIES
    RETAIL STORES
    RESIDENTIAL HOMES

“Mike and the gang did such a great job cleaning our windows. Our house will look perfect for the holidays. Thank you so much.” – south shore homeowner

Our window cleaners use the standard tools of the trade… Sponge Squeegee & Ladders.  No Shortcuts with sloppy pressure washers!

Service Area

  • BOSTON
  • DORCHESTER
  • BROOKLINE
  • WEST ROXBURY
  • DEDHAM
  • NEWTON
  • QUINCY
  • BRAINTREE
  • CANTON
  • NORWOOD
  • WESTOOD
  • AVON

Pricing estimates are given on site.

CONTACT TRI-M

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Testimonials

"I would also like to tell you that many people have commented on how much cleaner the building's common areas are since your company took over the cleaning responsibilities. Please let your staff know that their efforts are appreciated."

Condominium Trustee