Ontario prices
Roof repair prices in Ontario, CA
The cheapest repairs are the ones done early. Almost every expensive one started as a cheap one somebody left alone.
Or call (909) 738-1199Your request is in.
We are matching it now against roofing contractors working in Ontario and the surrounding area.
- Today, usually within the hour. The first contractor calls or texts the number you gave us. ASAP requests go out first.
- Up to three of them, no more. We cap it at three so you can compare without your phone melting.
- They come and look. Estimates are given after somebody has been on the roof, not over the phone.
- You decide, or you do not. There is nothing to cancel and nothing to pay us.
If you do not hear anything today, check your voicemail and spam folder — contractors often call from a mobile number.
These are estimated ranges, not quotes. Compiled from public installed-cost data for California and adjusted for how Ontario is built. No contractor is bound by them, and nobody can price a roof they have not stood on.
| Repair | Typical range | Notes |
|---|---|---|
| Emergency tarp-over | $425 – $1,200 | Stops the water tonight. It is not a repair. |
| Small leak, flashing or a few shingles | $475 – $1,300 | A pipe boot, a bit of step flashing, a handful of blown-off shingles. |
| Valley, chimney or skylight reflash | $950 – $3,100 | Where most leaks actually start. Rarely the shingles themselves. |
| Section replacement, one slope | $1,500 – $5,100 | New material on part of the roof. Colour matching is the hard part. |
| Rotten decking, per sheet replaced | $100 – $200 | Only found once the old covering is off. Always budget for some. |
| Structural repair with decking and framing | $3,700 – $12,000 | Long-running leaks get expensive because of what they soak, not what they break. |
What moves the price
- How many old layers have to come off before the new one goes on
- Permit and inspection fees, which vary more between towns than people expect
- Warranty tier, which is really a question about who honours it in fifteen years
- Access — a truck that cannot get near the house adds hours to every load
- Where you land in the season; crews discount when the phone is quiet
Locally
These winds are not constant, which is the problem. A roof gets nine quiet months and then one night at fifty miles an hour, and whatever was marginal goes.
If the repair quote is creeping toward a third of a replacement, get the replacement priced too before you decide.
These are estimates, not quotes. They are compiled from national installed ranges adjusted for California costs and for how Ontario is built. No contractor is bound by them.
Questions about price
What time of year is best to re-roof in Ontario?
Here, the long dry run from May to October is the easy window. November through March is when the phone rings hardest, which means less flexibility on dates and less room on price.
What warranty should I expect?
Ask for both in writing: the material warranty from the manufacturer and the workmanship warranty from the contractor. The second one is the one that matters in year three, and it is only as good as the company behind it.
Are you a roofing company?
No. Summit Roof Pros of Ontario is a free matching service. We do not hold a roofing licence, we do not employ crews, and we never come to your house. We pass your request to independent local contractors who do the work and who you hire directly.
What is it going to cost?
No cost, no obligation, and never more than three contractors.