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CA metro service · 5 counties · calls answered 24/7
Roof replacement begins with an inspection and photos, followed by a written scope and price.
For roof replacement in San Francisco and 5 towns across Marin and San Mateo counties, Roofers Hotline takes one call at (855) 512-1072. The line is answered around the clock, and you get a written estimate before work starts.
Older roofs are the norm here, where Census estimates put 77% of homes inside the city limits before 1980, and estimates cover repair and replacement.
With 77% of local homes built before 1980, many roofs carry more than one layer. Tear-off removes every layer down to the deck, and the old material is hauled away. The written estimate lists the tear-off and disposal. Call to have your roof's layers checked.
The metro gets 22.9 inches of precipitation a year, and old decking can soften under worn roofing. Once the old layers are off, the deck is checked and soft boards are replaced. The estimate shows where. Call to book the inspection.
Ice dam risk here is low and the downtown station records no freezing days, but wind-driven rain still finds the edges. Underlayment and drip edge move water off the roof and away from the fascia. Ask for these on your written estimate.
With a median build year of 1945 and 45.4% of housing predating 1940, many roofs here began as slate or tile. Shingles, metal or tile are fastened with manufacturer-rated fasteners. Call to talk through the options for your home.
Step by step, from the first call to the written estimate, the work is explained under how roof replacement works.
Roof replacement in San Francisco starts with the age of the homes. By Census estimates for 2019 to 2023, 77% of the homes here were built before 1980 and the median home dates to 1945, so many roofs are on a second or third covering. Roofers Hotline books roof replacement here, with an inspection of the roof and a written estimate before any work starts.
If your roof has had repairs on different sections or has layers you cannot count, call for roof replacement here, 24 hours a day.
San Francisco is not a hail or snow market. NOAA's storm records since 2015 show no hail of one inch or larger in the county, and the 1991 to 2020 climate normals at the downtown station show no snow and no freezing days. Age is the bigger factor: 45.4% of the housing here predates 1940. That means the visit focuses on old layers, soft decking and worn flashing, and the written estimate lists each of them. Call to book the inspection.
See emergency roof repair in San Francisco for the visit itself, booked across 168 ZIP codes here.
Sources: U.S. Census ACS 2019 to 2023; NCEI 1991 to 2020 normals. Updated October 2026.
In a city of 22.9 inches of yearly precipitation and old housing, the two signs to watch are repairs every season on different sections and multiple layers already on the roof. After the heavy winter rain and wind that brought the April 2023 federal declaration, look for stained ceilings and sagging deck lines from the street. Photograph what you see from the ground and do not climb up. Call for an inspection and a written estimate.
Costs
| Job | Range | Per unit |
|---|---|---|
| Asphalt shingles, 3-tab | $5,300–$10,600 | $311–$622 per square |
| Asphalt shingles, architectural | $8,800–$26,400 | $518–$1,554 per square |
| Metal roof, standing seam | $12,300–$68,500 | $723–$4,029 per square |
| Concrete tile | $12,200–$33,200 | $719–$1,951 per square |
| Natural slate | $17,500–$52,500 | $1,030–$3,090 per square |
| Flat roof, TPO membrane | $6,900–$24,300 | $408–$1,429 per square |
Full roof cost breakdown for this metro.
Typical range for this metro, built from published ranges and the local labor index (1.06); a written estimate depends on pitch, layers and decking.
Not a quote: typical 2026 ranges from published cost guides and Census County Business Patterns 2022 payroll data; your written estimate depends on pitch, layers and decking.
Source: published 2026 cost guides (Fixr, This Old House, Bob Vila, NerdWallet) and Census County Business Patterns 2022 roofing-contractor payroll.
The same number also books roof inspection across this metro, and the inspection is photographed before the estimate is written.
Why call
Book roof replacement before the wet season rather than after it. Federal disaster declarations that include this county number 8 from 1989 to date, and the latest, on April 3, 2023, covered severe winter storms, straight-line winds, flooding, landslides and mudslides. A roof that is already worn tends to show it in storms like those. Call Roofers Hotline for an inspection, a written estimate, and the replacement work scheduled around the weather.
To book this service in another town, about 7 miles out, start with what shapes roofs in Sausalito.
California licensing: California requires roofing contractors to hold a CSLB license, usually the C-39 Roofing classification. Look up any license at CSLB.
Questions
The housing is old. The median home was built in 1945, and 77% of homes were built before 1980, by Census estimates for 2019 to 2023. Many roofs here have been recovered at least once. If yours is past 20 to 25 years or has several layers, call for an inspection and a written estimate.
Rarely. NOAA's storm records since 2015 show no hail of one inch or larger in the county, and the largest hail recorded was 0.5 inches. Wear, rain and wind are the usual causes of replacement here. Call if you see granule loss or leaks.
California requires roofing contractors to hold a CSLB license, usually the C-39 Roofing classification. You can look up any license at CSLB before work begins. Call Roofers Hotline for roof replacement here and ask for the written estimate first.
Replace it when repairs keep coming on different sections, when the deck sags, or when the shingles are past 20 to 25 years with heavy granule loss. The area has had 8 federal disaster declarations from 1989 to date, so do not wait for the next storm. Call to book the inspection.
Homeowners across the metro also ask Does homeowners insurance cover roof replacement?
For the longer read, see the local guide to common roof problems here, built from this county's own records. Our guide to roof emergency warning signs goes deeper, from the same county storm and housing records.
Takes about a minute. Tell us the ZIP code and what the roof is doing, and a local roofer calls you back to book an inspection and written estimate.
Start your requestOr call: the number at the top of this page is answered 24/7.