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Commercial Roofing Services

Commercial Roofing

Commercial Roofing

Simpson Unlimited has been in the commercial roofing business in the Washington, D.C. Metropolitan Area and the Greater Mid Atlantic Region since its inception in 1992. Over more than twenty years, the company has developed its full service commercial roofing products and services into an industry leader.

Simpson services a wide array of roofing products and manufacturers on buildings ranging from small retail to high rise office buildings. Our goal has been to perform high quality, problem solving work. This ability has been paramount to our success in growing Simpson Unlimited. For our company and its employees, the higher and harder the work is, the better-suited we are for the challenge.

Services for Building Owners and Property Managers

Roof Replacement

Our estimating team stands by year-round to provide free estimates on roof replacements of all commercial roof types. Our replacement program guarantees that your new roofing system will be replaced properly, expeditiously, and to the new energy codes applicable in the building’s jurisdiction. Please send requests to simpson@simpsonunlimited.com.

Roof Recover

Roof recovers are recommended for existing roofing systems where the underlying roofing system does not exhibit severe moisture infiltration and the soundness of it provides a suitable substrate for a “roof over,” saving owners and managers cost on their new roofing system. Please send requests to simpson@simpsonunlimited.com.

Roof Restoration

When replacement and recovery are not a suitable option, and where the existing roof system is in suitable condition to accept new materials, a roof restoration using membrane repairs and coating systems may be appropriate for the roof upgrade on your building. Please send requests to simpson@simpsonunlimited.com.

Services for General Contractors

New Construction

Simpson provides new construction services to a select group of contractors in the region. Please send invitations to bid to itb@simpsonunlimited.com.

Roof Types

Simpson is a member of the following professional organizations:

  • Daniel Ulvinen

    Daniel Ulvinen

    President

  • Matt Stromberg

    Matt Stromberg

    Vice President

  • KEVIN LUTTRELL

    Kevin Luttrell

    Project Manager

  • CHELSEA BROOKS

    Chelsea Brooks

    Assistant Project Manager

  • EDGAR BENNINGTON

    Edgar Bennington

    Estimator

  • DEVON ROBEY

    Devon Robey

    Estimator

Manufacturer Certifications

We are authorized applicators or certified installers of the following roofing products:

  • Carlisle-Syntec
    • Single-Ply TPO, PVC, EPDM, KEE
  • Firestone Building Products
    • Single-Ply TPO, EPDM
    • Modified Bitumen SBS, APP, Cold-Applied, Hot-Applied
    • Built-Up Gravel Surface, Smooth Surface, Hybrid, Cold-Applied, Hot-Applied
  • Johns Manville
    • Single-Ply TPO, PVC, EPDM
    • Modified Bitumen SBS, APP, Cold-Applied, Hot-Applied
    • Built Up Gravel Surface, Smooth Surface, Hybrid, Cold-Applied, Hot-Applied
    • Liquid-Applied Roofing Systems
  • GAF
    • Single-Ply TPO, PVC, EPDM
    • Modified Bitumen SBS, APP, Cold-Applied, Hot-Applied
    • Built Up Gravel Surface, Smooth Surface, Hybrid, Cold-Applied, Hot Applied
    • Liquid-Applied Roofing Systems
  • Fibertite
    • Single-Ply Fibertite KEE
  • Siplast
    • Modified Bitumen SBS
    • Liquid-Applied Roofing Systems
    • Waterproofing Systems
  • Soprema
    • Modified Bitumen SBS
    • Liquid-Applied Roofing Systems
  • Versico
    • Single-Ply TPO, PVC, EPDM
  • Petersen Aluminum (PAC-CLAD)
    • Standing Seam Metal Roofing
    • Wall Panel Assemblies
  • Fabral
    • Standing Seam Metal Roofing
    • Wall Panel Assemblies
  • Carlisle Coatings & Waterproofing
    • Hot Rubberized Asphalt Membrane
    • Cold-Applied Membranes
    • Waterproofing Systems
  • Henry Company
    • Hot Rubberized Asphalt Membrane
    • Cold-Applied Membranes
    • Waterproofing Systems
  • Tremco Roofing / Commercial SealantsĀ & Waterproofing
    • Built-Up Roofing Systems, Hot-Applied, Cold-Applied
    • Modified Bitumen Systems, Hot-Applied, Cold-Applied
    • Single-Ply Roofing Systems
    • Standing Seam Metal Roofing
  • The Garland Company
    • Built-Up Roofing Systems, Hot-Applied, Cold-Applied
    • Modified Bitumen Systems, Hot-Applied, Cold-Applied
    • Single-Ply Roofing Systems
    • Standing Seam Metal Roofing
  • Tamko
    • Steep-Slope Asphalt Shingles
    • Maintenance on Existing Warranted Low-Slope Roofing Systems
  • Certainteed
    • Steep-Slope Asphalt Shingles
  • LiveRoof
    • Green Roofing Systems
  • Barrett Company
      • Hot Rubberized Asphalt Membrane
      • Cold-Applied Membranes

This is a comprehensive list as of January 2015. For more information on a particular product or service, please feel free to email or call us at the office and a team member can assist you.

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