About Ontario Roof Pros: Licensed Roofing Pros in CA
Ontario Roof Pros works from an office on Guasti Road, a few minutes from the airport and from the distribution buildings that make up most of our commercial work. We roof houses in the older neighborhoods along Euclid Avenue and in the newer tracts of Ontario Ranch, and we roof the warehouses in between.
The way we work is unglamorous. Photographs of everything, core cuts before opinions, a numbered roof plan on commercial buildings, and a written scope that names the material, the thickness and the fastening pattern. Our crews are our own, the foreman on your roof is somebody who walked it with us, and the number on the proposal is the number on the invoice.
There are jobs we are the wrong company for. If you want the lowest price in the valley, somebody will beat us, usually by leaving out the cover board, the taper or the flashing metal. If your roof needs a four-hundred-dollar repair and you would rather be sold a replacement, we will disappoint you. We also do not sign contingency contracts that only take effect if an insurance claim is approved.
If you have a roofing project in Ontario, the fastest way to get a real number is a free on-site estimate. See every Ontario service we handle, check whether we cover Chino, CA and the rest of the Inland Empire, or go back to the Ontario Roof Pros homepage to start. You can also reach us directly on (844) 511-2320.
Credentials
- License: Licensed and insured California C-39 roofing contractor
- Insurance: Fully insured and bonded
- Association: Western States Roofing Contractors Association member
- Warranty: a written workmanship warranty
How Ontario Roof Pros works
How a job with Ontario Roof Pros runs, start to finish
Site visit first, always. We measure, look at the real condition of the work area, and ask what you are actually trying to solve — then you get an itemized free estimate in writing with materials, scope and a realistic date on it.
Once the work starts, the same crew stays on the job until it is done. We protect the surrounding area, clean up daily, and tell you the moment something under the surface changes the plan, because the alternative is a surprise invoice and nobody wants that conversation. a written workmanship warranty backs the finished work.
What we will not do
We do not quote a roofing job over the phone, take deposits before a written scope exists, or bid work we are not set up to do properly. If your project needs a different trade, we say so and point you at someone who does it well. Losing a job is cheaper than doing one badly in Ontario.
Where Ontario Roof Pros works and who we work with
Ontario, CA first, then the surrounding communities of the Inland Empire: Chino, Chino Hills, Montclair, Upland, Rialto, Colton, Grand Terrace, Loma Linda and more. Each of those has its own page with local detail rather than a copy of this one.
Work splits roughly between homeowners and commercial property — offices, retail, restaurants, apartment complexes and HOA boards across the Inland Empire. Start with the Ontario services, the Ontario Roof Pros homepage, or just call (844) 511-2320.
Why Ontario Chooses Ontario Roof Pros
- ✓Core cuts and moisture readings before any recommendation, so the scope is based on evidence rather than a walk-around
- ✓Warehouse and industrial work phased by roof section, with every day's area dried in before the crew leaves
- ✓Proposals name the membrane thickness, insulation, fastening pattern and edge detail, so bids can actually be compared
- ✓We quote the repair beside the replacement and recommend the cheaper one when it is the honest answer
- ✓Drainage corrected with tapered insulation, crickets and sumps rather than inherited from the last roof
- ✓Numbered roof plans and dated photographs, so next year's inspection compares like for like
What Ontario Customers Say
They found the leak forty feet from the stain in our warehouse office, on the flute of the deck, and welded a patch the same afternoon. The report came with photographs and a marked roof plan, and they told us the roof had six good years left rather than trying to sell us a new one.
Our tile roof got walked on during a solar install and three tiles cracked. They matched the profile from salvage, reset the course, and checked the whole field for the ones we had not spotted. Priced as a repair, finished in a morning, no upsell attempted.
We asked for a coating on a low-slope building and they cut cores first, found wet insulation in two areas, and told us a coating would waste our money. Ended up replacing one section and coating the rest. Straight answers and a scope we could actually compare against other bids.
Shingle tear-off on a two-storey house with a narrow side yard. They brought a conveyor, kept the driveway clear, dried the roof in the same day, and ran magnets over the yard twice. The flashing work at the chimney is better than what was there before.
Service Areas
Ontario Roof Pros serves Ontario, CA and surrounding communities including: