Commerce prices
Pricing a repair rather than a replacement
The cheapest repairs are the ones done early. Almost every expensive one started as a cheap one somebody left alone.
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No provider in Commerce is taking requests through this service yet. We are lining them up, and yours is kept until one can.
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- 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 Commerce 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 | $400 – $1,200 | Stops the water tonight. It is not a repair. |
| Small leak, flashing or a few shingles | $475 – $1,200 | A pipe boot, a bit of step flashing, a handful of blown-off shingles. |
| Valley, chimney or skylight reflash | $925 – $2,900 | Where most leaks actually start. Rarely the shingles themselves. |
| Section replacement, one slope | $1,500 – $5,200 | 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 | $3,500 – $11,500 | Long-running leaks get expensive because of what they soak, not what they break. |
What moves the price
- How much decking turns out to be soft once the covering is stripped
- Ventilation work, if the old roof was cooking itself from underneath
- How many old layers have to come off before the new one goes on
- The number of penetrations: chimneys, skylights, vents, solar mounts
- Pitch — anything over about 7:12 needs staging and slows a crew down
Locally
They also drive ember risk, which is why vent screening and Class A assemblies matter more here than the colour of the covering.
Ask for the remaining life of the covering alongside the repair price. Those two numbers together are what the decision actually rests on.
These are estimates, not quotes. They are compiled from national installed ranges adjusted for California costs and for how Commerce is built. No contractor is bound by them.
Questions about price
Should I repair or replace?
It depends almost entirely on how much life is left in the material. Ask any contractor who inspects it to give you a number of years and a reason. If two of them independently say the same thing, believe it.
Is moss on the roof a problem?
It matters more than it looks. The damage is not the moss, it is the permanent damp underneath it. Kill it and brush it off gently; never pressure wash asphalt.
Do I have to hire anyone?
No. Take the quotes, sit on them, compare them, or throw them away. There is nothing to cancel and nothing owed.
Ready for a real number?
Free, no obligation, and your details go to no company until you say yes.