Contact Ontario Roof Pros for a free estimate

A real person from Ontario Roof Pros reads it, calls you back, and books a site visit — usually within one business day. We measure, look at the actual condition of the work area, and send a written, itemized free estimate. No deposit, no obligation, and no pressure call afterwards.

In a hurry? Calling (866) 875-9250 is always faster than a form.

Monday through Saturday, 8am to 6pm, with emergency calls answered outside those hours. Forms that arrive in the evening get a call back the next morning, and a site visit is usually booked within one to two business days depending on where in the Inland Empire and the eastern San Gabriel Valley you are.

Everything is handled by Ontario Roof Pros people in Ontario, CA — not an overseas call centre working from a script. If you would rather not explain the whole thing twice, calling (866) 875-9250 once beats a form and a follow-up.

Most of the requests that land here fall into a handful of jobs. If yours is on this list, there is already a page with scope, materials and pricing detail for Ontario:

• Roof Replacement — Replacement here comes down to one question: can the building keep working while the roof comes off? On a distribution building that answer drives the whole sequence, and on a house it decides how long the framing sits open to the sky.
• Roof Leak Repair — A leak almost never drips where it entered. Water lands on the sheathing, runs down the top of a rafter or a truss chord and falls where something finally stops it, so the stain on a bedroom ceiling can sit ten or fifteen feet from the actual break in the roof above it.
• Storm Damage Restoration — The storms that hurt roofs in this valley are the winter atmospheric rivers, and on a low-slope roof the damage is usually not the wind at all. It is the water that could not leave the roof fast enough.
• Hail Damage Roofing — Damaging hail is uncommon in Ontario. A cold winter cell can drop pea to marble sized stones across the valley, and it does happen, but most roofs we are asked to inspect for hail turn out to have something else wrong with them.
• Wind Damage Roofing — Wind failure on a large low-slope roof begins at the corners. Uplift pressure is highest in the corner and perimeter zones, so a membrane fastened at field spacing all the way to the edge lifts there first and peels inward from a single loose sheet.
• Roof Inspections & Moisture Surveys — A warehouse roof is an asset with a service life. The buildings that get twenty-five years from a membrane are the ones looked at twice a year, and the ones that get twelve are the ones nobody visited between leaks.

Something not on the list? Send it anyway. The list covers what we see most often around Ontario, not the limit of what we handle.

Ontario and the surrounding communities of the Inland Empire and the eastern San Gabriel Valley, including Chino, Chino Hills, Montclair, Upland, Rialto. Each of those has its own page with local detail:

• Chino, CA — San Bernardino County
• Chino Hills, CA — San Bernardino County
• Montclair, CA — San Bernardino County
• Upland, CA — San Bernardino County
• Rialto, CA — San Bernardino County
• Colton, CA — San Bernardino County

Or start from the full list of Ontario services.

Rough measurements or square footage, photos of the area from a few angles, any material or finish you already have in mind, and your target timeline. None of it is required, but it makes the first free estimate far more accurate.

Nothing. The site visit and the written, itemized free estimate are free across Ontario and the Inland Empire and the eastern San Gabriel Valley, with no deposit and no obligation to book. We would rather price the job properly and lose it than win it on a number we made up over the phone.

Yes. Ontario Roof Pros runs its own crews in Ontario, CA — the people who quote your roofing job are the people who show up to do it. Licensed and insured California C-39 roofing contractor. C-39 covers what seals, waterproofs and weatherproofs a structure, and reaches gutters, edge metal and skylight curbs as work incidental and supplemental to the roof. Interior repairs beyond that are a different classification and we say so rather than stretch the license. We also carry workers' compensation, which a C-39 must hold whether or not it has employees, Fully insured and bonded. Nothing gets sold on to whoever is cheapest that week.