General Roofing Company has a wide variety of services to meet different roofing needs. Our knowledge and expertise can accommodate residential, as well as commercial and industrial customers. These capabilities, coupled with a long history, make us the ideal company to perform your job.

Diamond Certified

We are a CertainTeed Installer

Qualified to offer extended warranties

 IB Roof Systems
Authorized Installer

Proudly installing quality
commercial roofs in the
Bay Area for over 85 years.


At the General Roofing Company, our knowledge and expertise will accommodate your commercial roofing and industrial roofing needs. These capabilities, coupled with a long history make us the ideal roofing company to perform your job.

Commercial Roofing Services We Offer

(All types of roofs)

Composition Shingles:

30 Year 3-Tab
30 Year Dimensional
40 Year Dimensional
50 Year Premium
Limited Lifetime
Premium Limited Lifetime

Factory approved and authorized installer for:

  • CertainTeed Corporation
  • Select Shingle Roofer Status**
  • Elk Peak Performance Contractor

Built-up Roof Systems:

Tar & gravel
Smooth surface reflective coatings
Mineral surface
Modified bitumen (mopped,  torched and self-adhered).
Complete tapered roof systems customized to promote drainage.

**Factory Approved & Authorized**

CertainTeed Gold Star Applicator

*Ask about the California “Cool Roof” rebate!

Single-Ply system / IB authorized Installer.

Tile Roofs:

  • Concrete (all types)
  • Spanish style tops & pans
  • Light weight (all types)

Wood Roof Systems:

  • Install Class A fire rated wood roof systems for shake and wood shingle roofs.
  • Install Class B fire rated wood roof systems for shake and wood shingle roofs.
  • Install Class C fire rated wood roof systems for shake and wood shingle roofs.

Roof Asset Management
Provide budget figures and a detailed chronological project plan for roof and gutter system replacements and maintenance. Design separate roof component specifications as necessary for each individual project.

Roof Repair
(All types of roof repairs)

Composition shingles
Wood shakes
Wood shingles


Repairs to all styles of vent flashings and skylights.

Roof Maintenance
Perform roof maintenance on the following systems:

Composition shingles

~ Shake
~ Shingle
~ Tar & gravel
~ Modified Bitumen
~ Mineral Surfaced
~ Single-ply

The maintenance will address defects in the roof systems including the skylights, flashings and gutters.

Skylight Installation & Repair

Provide and install new skylights (Traditional & Tubular).

Ventilation Systems

Designed to promote the proper attic ventilation as required by manufacturers and the Uniform Building Codes.

  • Ridge vents
  • Simpson style low profile attic vents
    Soffit vents
  • Thermostatically controlled attic fans
  • -Energy efficient solar attic fans

Gutter Installation & Repair

Remove and dispose of the debris from the gutters. Gutters and downspouts will be flushed to ensure that they are clog-free and working property Re-sealing of leaky seams is also available.

  • Install Galvanized OG Gutters and Fascia.

  • Install Aluminum OG Gutters and Fascia.

  • Install Copper Gutters.

  • Install Bonderized Gutters.

  • Gutter Repairs

Polyester Style Walk Decks

Install new polyester style walk decks. Repair and maintain existing walk decks. (Re-caulk, re-coat etc.)

Allow us to demonstrating to you why we are the premier roofing contractor in the Bay Area. Click here for your Free Estimate.

Contractor's State License No: 154732

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