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Flat and low-slope roofs in Williamstown, NJ

5 Williamstown 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. Amj Contractors, Llc

    Williamstown, NJ

    Family-owned roof replacement, covering flat, low-slope and asphalt shingle roofs.

    • Family owned
    (267) 337-3765 Call Amj Contractors, LlcView profile of Amj Contractors, Llc

  2. Dezigns Construction Inc - DCI

    Williamstown, NJ

    Emergency service, roof maintenance and gutter cleaning, with flat roofs and a workmanship warranty.

    • Free inspection
    • Emergency service
    • Warranty
    (888) 781-1861 Call Dezigns Construction Inc - DCIView profile of Dezigns Construction Inc - DCI

  3. Emmons Roofing & Siding

    Williamstown, NJSince 1988

    HAAG Certified Inspector and NRCA member since 1988: slate, solar, stucco, roof coating and attic insulation near Buena and Hammonton.

    • Free inspection
    • Financing

    Also serves Buena, Hammonton, Elwood +6

    (856) 556-3229 Call Emmons Roofing & SidingView profile of Emmons Roofing & Siding

  4. Morrison Commercial Coatings

    Williamstown, NJ

    Commercial roofing focus: roof coating, waterproofing, metal and flat roofs, plus inspections. Locally owned.

    • Free inspection
    (856) 542-8871 Call Morrison Commercial CoatingsView profile of Morrison Commercial Coatings

  5. Roofing Champs

    Williamstown, NJ

    Metal roofs, emergency repair and storm claims for homes and commercial properties near Newfield and Sewell.

    • Free inspection

    Also serves Turnersville, Newfield, Sewell +7

    (856) 606-2150 Call Roofing ChampsView profile of Roofing Champs

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?