Roofing Companies San Francisco: 2026 Cost Guide
Roofing companies San Francisco homeowners contact typically quote $9,000 to $28,000 for a full reroof, with flat torch-down and TPO systems on Victorian row houses running toward the higher end once hillside access and multiple tear-off layers are factored in.
By Jason Green · Roofing & Gutters · Published August 18, 2026 · Updated August 18, 2026 · 6 min read
What drives the price range
Most San Francisco roofs are flat or low-slope, so bids are usually priced per square of membrane rather than per shingle bundle, and the number of old roofing layers found underneath directly affects tear-off labor.
Steep, narrow lots also add cost: dumpster placement, material hoisting, and street parking permits for staging equipment can add 10-15% to a bid compared to a flat, easy-access suburban lot.
Comparing torch-down, TPO, and built-up roofing quotes
Torch-down modified bitumen tends to be the most budget-friendly flat roofing option and holds up well to fog belt moisture, while TPO membrane costs somewhat more but resists UV and ponding water better over the long term.
Older built-up roofing (BUR) systems found on many pre-1960s buildings are usually replaced outright rather than repaired once they pass 25-30 years, since patching aging tar-and-gravel roofing rarely holds for long.
Permits and historic review add time, not just cost
Every reroof needs a permit from the San Francisco Department of Building Inspection, and buildings in a historic district may also need Planning Department sign-off if the roofline or parapet is visible from the street.
Ask any roofing company for a written timeline that separates permit lead time from actual installation days, since Planning review alone can add a couple of weeks in landmark-heavy neighborhoods like Noe Valley or Pacific Heights.
Questions to ask before signing a roofing contract
Confirm the company holds an active C-39 Roofing license through the CSLB lookup, ask whether the bid includes multi-layer tear-off allowances, and get the warranty terms for both materials and labor in writing.
For more on realistic 2026 price bands across the city, our San Francisco roofing cost guide breaks down torch-down, TPO, and pitched-roof pricing side by side.
Typical cost ranges
| Torch-down reroof (per sq) | $650 - $1,100 |
| TPO reroof (per sq) | $700 - $1,250 |
| Built-up roof tear-off and replace | $800 - $1,400 per sq |
| Full tear-off, multi-layer Victorian roof | $14,000 - $28,000 |
| Roof inspection with camera scan | $275 - $550 |
Ranges are general estimates gathered from homeowner-reported quotes, not an offer or a quote for your project.
Common questions
How do I compare bids from different roofing companies?
Make sure each bid specifies the same membrane type, number of tear-off layers assumed, and whether permit fees and hoisting/access costs are included.
Is torch-down or TPO better for a San Francisco flat roof?
Torch-down is generally cheaper upfront and handles fog belt moisture well, while TPO costs a bit more but resists UV and ponding water better long term.
Do roofing companies in San Francisco handle the permit for me?
Most reputable companies pull the DBI permit as part of their service, but confirm this in writing before work starts.
How long does a full reroof take in San Francisco?
A typical row house reroof takes 3-7 days once permitted, though historic district review can add weeks before work can begin.
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