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Flat and low-slope roofs in Gaithersburg, MD

7 Gaithersburg roofing companies list flat and low-slope roofs on their website. Each one has a working phone and a live website. Call them direct.

Roofers that list flat and low-slope roofs, A to Z

  1. Ayden Construction, LLC

    Gaithersburg, MD

    Roof coating and waterproofing, flat roofs, decks and windows, with financing near Germantown and Potomac.

    • Financing

    Also serves Germantown, Rockville, Potomac +13

    (301) 651-0499 Call Ayden Construction, LLCView profile of Ayden Construction, LLC

  2. D&M Roofing and Home Remodeling

    Gaithersburg, MDSince 1968

    Chimney work, tile roofs, skylights and exterior painting, from a family-owned shop dating to 1968, near Derwood and Redland.

    • Family owned
    • Free inspection

    Also serves Washington Grove, Derwood, Redland +20

    (301) 948-0100 Call D&M Roofing and Home RemodelingView profile of D&M Roofing and Home Remodeling

  3. Exterior Renovations LLC

    Gaithersburg, MD

    Fiber cement siding, windows and wood shake or flat roofs, with financing and a workmanship warranty, out to Severna Park.

    • Free inspection
    • Financing
    • Warranty

    Also serves Germantown, Rockville, Potomac +6

    (301) 956-7303 Call Exterior Renovations LLCView profile of Exterior Renovations LLC

  4. GoodGood Roofing & Siding

    Gaithersburg, MD

    Veteran-owned. Owens Corning Preferred, CertainTeed ShingleMaster and GAF Certified, with slate and wood shake near Olney.

    • Veteran owned
    • Free inspection
    • Financing

    Also serves Montgomery Village, Rockville, Olney +17

    (301) 775-7317 Call GoodGood Roofing & SidingView profile of GoodGood Roofing & Siding

  5. Interstate Corporation

    Gaithersburg, MD

    Slate, metal, flat and shingle roofs for commercial properties. Family-owned, working in Washington and Howard County.

    • Family owned

    Also serves Washington

    (240) 660-2911 Call Interstate CorporationView profile of Interstate Corporation

  6. Moose Exteriors

    Gaithersburg, MD

    Metal and flat roofs, vinyl siding and gutters, with storm repair and insurance claim help for homes and commercial properties.

    • Free inspection
    (301) 789-3238 Call Moose ExteriorsView profile of Moose Exteriors

  7. Washingtonian Companies, LLC

    Gaithersburg, MD

    Veteran-owned, family-run crew for fiber cement and vinyl siding, gutter guards and flat or shingle roofs in Washington.

    • Veteran owned
    • Family owned
    • Free inspection

    Also serves Washington

    (301) 215-0275 Call Washingtonian Companies, LLCView profile of Washingtonian Companies, LLC

About flat and low-slope roofs

Flat and low-slope roofs do not shed water the way a pitched roof does, so the membrane and its seams do all the work. The common choices are TPO and PVC single-ply membranes, EPDM rubber, modified bitumen, and coatings that extend the life of a sound roof. Ponding water, blocked drains and failed seams cause most leaks. A flat roof needs a look every year or two.

What to ask a contractor

  • Which membrane do you recommend for my roof, and why?
  • How will you deal with ponding water and the drains?
  • Are the seams heat-welded or glued, and how long is the seam warranty?
  • Can the existing roof be coated instead of replaced?

Guide: Roof repair or replacement: how to decideGuide: How much does a new roof cost?