Emmons Roof Service |890 Ontario BlvdOntarioCA91761 | (909) 460-5900
Emmons Roof Service
890 Ontario Blvd
OntarioCA 91761
 (909) 460-5900
Commercial Roofing
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item imageWelcome to Emmons Roof ServiceEmmons Roof Service has served the greater Southern California area, Central Coast, and Northern California since 1991. We are commercial roofing experts who have built a stellar reputation by partnering with our clients to craft roofing plans tailored to their specific needs. Whether large or small and regardless of budget, we give all our clients our utmost attention to detail and quality, earning us tremendous referrals and strong long-term partnerships.
item imageOur Services:
  • Commercial & Industrial Re-Roofing
  • New Construction Roofing
  • Cool Roof Systems & Coatings
  • Roof Maintenance & Roof Repairs
  • Sheet Metal & Waterproofing
item imageOur ProjectsFrom small, local property owners to major, national retailers such as Target and Costco, we are big enough to service numerous sites simultaneously, dispatching expert crews to meet every client's needs, and without any compromise to attention or customer satisfaction. Whether you require a quality recover or a quality new roof, Emmons Roof will give you personal service to assure your total satisfaction.

Roofing Contractor
Ontario, CA


The commercial roofing experts at Emmons Roof Service specialize in re-roofing. We work in a wide variety of industries with specialized roofing and equipment needs, including retail, food processing, hospitals (OSPD) and education.

As a commercial roofing specialist, we will provide roof reports, estimates, and budget figures prior to signing a contract. We offer many types of energy efficient roof systems or coatings to suit your building’s specific roofing needs and condition.

We offer full roof removals, structural upgrades, as well as plywood/metal deck replacement prior to installing a new roof system. Types of roofing systems applied are PVC and TPO single-ply membrane systems, built up roof systems and torch (APP) applied membrane systems. Various types of insulation with R-Values from R-6 to R-40 can be incorporated into the re-roof options we offer. Systems are Class A & FM approved where applicable and comply with Title 24 (California Cool Roofing).

If our commercial roofing experts determine the existing building and existing roofing to be suitable, we can install the new roof directly over the existing, saving costs, scheduling impact, and avoid unnecessary tenant operation disruptions.

Sheet metal flashings, copings, and waterproofing are offered as well, making the roof project a turnkey operation, eliminating additional sub-contractors and owner involvement.

We provide all building permits, licenses and our warranties range from two to 25 years. Prorated and “No Dollar Limit” warranties are also offered.

New Construction Roofing

New (ground-up) buildings, remodels and tenant improvements (TI) are our specialty at Emmons Roof Service. Our commercial roofing experts work with general contractors and owners in the early stages of a project, providing budgets and value engineering. We offer all types of roofing systems which include PVC & TPO membrane systems, built-up roofing systems, metal standing seam systems, and torch-applied systems. Various types of insulation with R-values from R-6 to R-40 can be incorporated into the re-roof options we offer. Systems are Class A & FM approved, where applicable, and comply with Title 24 (California Cool Roofing). Approved by most major roofing manufacturers, TIs installed on an existing roof system are no problem.

Warranties range from two to 25 years. NDL warranties a must.

Cool Roofs and Coating

What is a cool roof? Cool roofs include PVC and TPO membrane systems and a white reflective coating such as silicone, urethane or acrylic. A cool roof is a system required by California Title 24. Materials must be approved by the Cool Roof Council. A cool roof must be installed over a climate controlled (air conditioned or heated) building.

Our commercial roofing experts can install any of these systems on new construction, re-roofing, and recover roofing.

Warranties range from two to 25 years.

Roof Maintenance and Repairs

Why reroof if it isn’t necessary? Let the commercial roofing experts at Emmons Roof Service come in and evaluate your roof system and propose a way to prolong the life of your existing roof system. We will give you an honest evaluation of your existing conditions and won’t recommend a re-roof if it isn’t needed. No need to pay for something you don’t need!

Like with an automobile, maintenance will prolong the life expectancy of the system and protect your investment. Let Emmons Roof Service repair your roof or possibly recoat your existing system to prolong the life of the roof and provide additional warranties.


  • Retail
  • Property management
  • Distribution centers
  • Education
  • Entertainment
  • Aerospace/defense
  • Food processing
  • Medical


  • Long-term warranties available
  • GAF Master Select contractor
  • Southern California based
  • Family owned and operated
  • No job too big or too small

Leaks? Our experts will come out to your site to evaluate leaks and submit a proposal for repair. If your situation involves leaking during rain, let Emmons Roof Service send a qualified technician out to track down and repair your problem on an emergency basis. Pricing is available upon request.

Contact Us

For more information about reroofing solutions from Emmons Roof Service, fill out the contact form below or call us today at (909) 460-5900 or toll-free at (844) 894-0877.

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Business Hours:

Monday 8:00 AM – 5:00 PM
Tuesday 8:00 AM – 5:00 PM
Wednesday 8:00 AM – 5:00 PM
Thursday 8:00 AM – 5:00 PM
Friday 8:00 AM – 5:00 PM