Cornerstone Roofing of MontclairMontclair’s shortcut to three honest roofing quotes.(909) 752-8730What it costs

Montclair prices

Pricing a low-slope roof

Flat roofing is priced by the square like everything else, but the cost sits in the details — terminations, drains, and how the membrane meets every wall it touches.

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Get a compliant roof quote

No cost to you. Contractors pay us, you do not.

Or call (909) 752-8730

Free estimate · No obligation

Get a compliant roof quote

No cost to you. Contractors pay us, you do not.

Step 1 of 6

What best describes your home?

Different buildings need different crews, so this is the first thing a roofer asks.

Free. You are not committing to anything.

Architectural asphalt shingle$13,000 – $27,500About $650 – $950 a square. Rated life 25 to 30 years.
3-tab asphalt shingle$10,500 – $21,000About $525 – $725 a square. Rated life 15 to 20 years.
Impact-rated asphalt shingle$16,500 – $37,500About $825 – $1,300 a square. Rated life 25 to 35 years.

These are estimated ranges, not quotes. Compiled from public installed-cost data for California and adjusted for how Montclair is built. No contractor is bound by them, and nobody can price a roof they have not stood on.

Installed ranges for a 25-square roof in Montclair, CA. One square = 100 square feet.
CoveringPer squareTypical whole roofExpected life
Architectural asphalt shingleThe default choice on most American homes, and usually the right one.$650 – $950$13,000 – $27,50025 to 30 years
3-tab asphalt shingleThe cheapest thing that still counts as a roof. Fewer and fewer crews will install it.$525 – $725$10,500 – $21,00015 to 20 years
Impact-rated asphalt shingleClass 4 rated. Often earns an insurance discount where hail is a factor.$825 – $1,300$16,500 – $37,50025 to 35 years

What moves the price

  • Pitch — anything over about 7:12 needs staging and slows a crew down
  • The number of penetrations: chimneys, skylights, vents, solar mounts
  • Warranty tier, which is really a question about who honours it in fifteen years
  • How much decking turns out to be soft once the covering is stripped
  • Permit and inspection fees, which vary more between towns than people expect

Locally

Dry offshore wind lifts material that damp coastal air had been holding down. Most wind losses here happen on a handful of nights a year.

Be careful with coatings sold as replacements. Coating a sound roof buys years; coating a failed one buys a fresh colour.

These are estimates, not quotes. They are compiled from national installed ranges adjusted for California costs and for how Montclair is built. No contractor is bound by them.

Questions about price

What if the decking is rotten underneath?

Expect a few sheets on most older roofs. Get the per-sheet rate in the contract. Open-ended decking charges are where a fixed price stops being fixed.

How long should a roof last here?

Rated life and real life are different numbers. Here, ordinary rated life is a fair guide, provided the attic breathes. Ventilation and the quality of the installation move that more than the brand does.

How much deposit is normal?

A third at most, and never the full amount. Pay the balance when the job is finished and you have walked it. Some states cap the deposit by law.

Get the roof looked at

Three questions, about a minute, and up to three Montclair contractors come back to you.

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