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.
Join the waiting list
Three quick questions. Nobody is sent your details; we email you when a provider can help.
You are on the list.
No provider in Ontario is taking requests through this service yet. We are lining them up, and yours is kept until one can.
- Nobody gets your details yet. Your request stays with us and is not passed to any company.
- One email when someone can help. When a provider covering your area can take it on, we email you once and ask whether you want that company, by name, to contact you.
- Deleted after 90 days. If nobody can take it on, or you do not say yes, your contact details are deleted 90 days after your request.
- You decide, or you do not. There is nothing to cancel and nothing to pay us.
Nobody will call you about this request unless you say yes to a company by name.
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?
Free, no obligation, and your details go to no company until you say yes.