Mercer Roofing roofing team

Roofers in San Francisco - Free Inspection, Itemized Written Quote

Free roof inspection with photos, then an itemized written price before anything is ordered. Installed by our own licensed crews and backed by a workmanship warranty.

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🛡 Licensed & Insured 📝 Written Fixed-Price Quotes 💲 No Change Orders · Free Estimates
Every visit starts with

Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation

Your new roof for as low as $159/month*on approved credit; ask for current terms
Styles & brands we work with

Architectural shingles
Architectural shingles
Metal roofing
Metal roofing
Tile roofing
Tile roofing
GAF
GAF
Owens Corning
Owens Corning
Flat & low-slope
Flat & low-slope

Before & after – our own jobs

Before - Recent ProjectBeforeAfter - Recent ProjectAfter
Recent Project
Before - Full RestorationBeforeAfter - Full RestorationAfter
Full Restoration
Before - Complete UpgradeBeforeAfter - Complete UpgradeAfter
Complete Upgrade

Roofers in San Francisco, CA

Roofing in San Francisco demands a different skill set than almost anywhere else in California. The city’s Victorian and Edwardian rowhouses, chronic marine layer, and zero-lot-line density create repair and replacement challenges that suburban roofers rarely encounter. We send our technicians’ names and photos before every visit, provide written prices before any work starts, and back every repair with our 365-Day Done Right Promise. Call (743) 200-8347 to schedule your free estimate.

Call (743) 200-8347

Why San Francisco Homes Are Different

San Francisco’s housing stock is overwhelmingly Victorian and Edwardian attached rowhouses, most rebuilt after the 1906 earthquake, with flat or minimally-sloped roofs that sit in one of the foggiest urban microclimates in the country. The chronic marine layer, not heavy rainfall, is the primary moisture enemy here. Built-up and modified bitumen flat roofs degrade from persistent fog-driven saturation rather than storm events, a failure pattern largely absent in drier neighboring cities like Oakland or San Jose.

The Karl the Fog marine layer saturates western neighborhoods like the Outer Sunset, Inner Richmond, and Twin Peaks for weeks at a stretch, delivering moisture loads comparable to rainy climates while official annual rainfall sits at only about 20 inches. Flat roofs in these fog-belt neighborhoods accumulate algae, moss, and membrane micro-cracking from UV cycling at the fog edge far faster than identical roofs in the sunnier Mission or Potrero Hill neighborhoods just miles away.

Attached rowhouses across the Castro, Mission, and Western Addition share party walls with no side-yard access whatsoever. Roofers must hoist all materials over the front parapet using rope and pulley or carry everything through a client’s occupied interior. This logistical constraint adds meaningful labor hours to nearly every re-roof in these dense flatlands, and any accurate local bid must explicitly account for it.

Our Main San Francisco Services

San Francisco homeowners call us most often for urgent leak repair and full roof replacement on aging flat-roof rowhouses. Each service page below covers local conditions, pricing, and what to expect.

Roof Repair in San Francisco

Most San Francisco roof repairs involve membrane punctures on built-up or modified bitumen flat roofs, deteriorated parapet flashing where fog-driven moisture wicks into party walls, and interior drain clogs that back up into top-floor ceilings. We stock common membrane patches, sealants, and drain hardware locally, and our technicians carry photo ID badges that we send ahead of every visit. Roof Repair in San Francisco

Roof Repair in San Francisco

Roofing Company in San Francisco

As a full-service roofing company in San Francisco, we handle everything from emergency tarping after wind events to scheduled maintenance programs for multi-unit buildings. Our dispatch and scheduling are coordinated from our San Francisco Bay Area office, with crews serving the city locally. Every project starts with a written price, and every repair includes a written guarantee. Roofing Company in San Francisco

Roofing Company in San Francisco

Roof Installation in San Francisco

Roof installation in San Francisco typically means removing saturated built-up roofing from a 1906-era rowhouse, replacing compromised decking, and installing a new modified bitumen or TPO membrane system with proper parapet detailing. Material hoisting through occupied interiors or over parapet walls extends timelines compared to suburban jobs, and we price this explicitly in every written quote. Roof Installation in San Francisco

Roof Installation in San Francisco
Need help today?Fast, friendly service and a no-obligation free estimate.

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What happens when you call

  1. 1
    A real person answersNo phone trees - you reach a local pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched.
  3. 3
    A background-checked tech heads outLicensed & insured, dispatched right away.
  4. 4
    You approve before work beginsNothing starts until you say go.

Brands We Service in San Francisco

We install and repair using manufacturer-recognized shingle brands including GAF, CertainTeed, and Owens Corning, plus membrane systems from IKO and others. Our San Francisco Bay Area office stocks common repair materials for faster turnaround on flat-roof emergencies. our brands

Pricing for Roofers in San Francisco, CA

Service Typical range in San Francisco
Flat roof leak repair (membrane patch) $350 – $850
Parapet wall flashing repair $500 – $1,200
Interior drain unclog/replacement $400 – $950
Modified bitumen partial re-roof $8 – $14 per sq ft
Built-up roofing (BUR) full replacement $10 – $18 per sq ft
TPO membrane installation $9 – $16 per sq ft
Decking replacement (per sq ft, add to above) $4 – $8 per sq ft
Emergency tarping (wind/storm damage) $250 – $600
Roof inspection with written report $150 – $350
Scheduled maintenance program (annual) $400 – $800

Prices in San Francisco run higher than suburban Bay Area markets due to material hoisting through interiors or over parapets, limited staging space on zero-lot-line properties, and parking/congestion logistics. We provide a written, line-item price before any work starts, every time, with no surprises on the invoice.

Neighborhoods We Serve in San Francisco

We work across San Francisco’s flat-roof districts, from the fog-saturated western neighborhoods to the sunnier eastern flatlands. Most calls come from homeowners in these areas:

  • Outer Sunset
  • Inner Richmond
  • Castro
  • Mission
  • Western Addition

Dispatch and scheduling are coordinated from our San Francisco Bay Area office, with crews typically arriving same-day or next-day for active leaks.

Service Area – Cities Near San Francisco

Our crews serve San Francisco directly and also travel to nearby communities across the northern peninsula and southern Marin. Homeowners in Daly City, CA, Brisbane, CA, Sausalito, CA, and South San Francisco, CA can schedule the same written-price service and Threshold Verified technician standards.

Serving San Francisco, CA - Our Local Coverage Area

We’re based in the San Francisco area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.

FAQs About Roofers in San Francisco

Ready to get started? Free estimates · Free in-home estimates response in San Francisco
Call (743) 200-8347

What happens when you call

  1. 1
    A real person answersNo phone trees - talk to a local roofing pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
  3. 3
    We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
  4. 4
    You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.

What San Francisco Customers Say

★★★★★ 4.8 from 9+ reviews

"Leak showed up in the hallway ceiling after a big storm. They found the failed pipe flashing in about ten minutes, replaced it, and checked the attic for wet insulation."

- Sophie R.

"Chimney flashing was the culprit for years of dark stains on the ceiling. Fixed it in one visit and no more stains."

- Ian O.

"Roofer showed his ID and gave me the crew lead's name before anyone climbed the ladder. Replaced a patch of missing shingles and resealed two vent boots. Written estimate matched the final bill."

- Brian J.

How It Works in San Francisco

Getting your roofing handled is simple and fast.

1

Call or Request a Free Estimate

Tell us about your roofing needs and we provide an upfront, transparent quote - no obligation, no hidden fees.

2

Licensed Technician Dispatched

A background-checked, certified technician arrives in San Francisco - typically within 30-60 minutes, with parts stocked on the truck.

3

Problem Solved, Guaranteed

We complete the job to your full satisfaction, backed by our warranty and 100% satisfaction guarantee.

Current Offers

Bring these savings to your next appointment.

Free On-Site Estimate & Written Quote

No obligation. We measure, price the job in writing, and the quote is yours to keep.

Expires Mar 31, 2027
Always

Written Price Before Any Work Starts

Expires Mar 31, 2027
Included

Written Guarantee on Every Repair

Expires Mar 31, 2027
Free

Free Second Visit if the Repair Fails

Expires Mar 31, 2027

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