Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Roofers in Daly City, CA
Roofers in Daly City face a set of conditions you won’t find five miles inland. The combination of salt-laden fog, relentless northwest winds, and one of the largest concentrations of aging post-war tract homes in the country means most roofing work here involves moisture damage, moss intrusion, and end-of-life replacements on houses that all reached retirement age at roughly the same time. We’re Mercer Roofing, and we dispatch background-checked, photo-badged technicians to Daly City homes with a written price in hand before any ladder goes up. Call (743) 200-8347 to schedule your free estimate.
Why Daly City Homes Are Different
Daly City’s Westlake district holds thousands of nearly identical Doelger-built stucco row houses from the 1940s and 1950s. Their low-pitched, wood-framed roofs sit on tightly packed lots with shared-wall configurations that trap moisture and limit ventilation. These roofs are all reaching end-of-life together, and the shallow pitches concentrate drainage in ways that accelerate decay.
The coastal bluff exposure makes Daly City one of the foggiest, windiest cities in the continental US. Marine fog rolls in nearly year-round, keeping roof surfaces perpetually damp and rarely letting materials fully dry. Northwest-facing roof planes take the worst punishment. Prevailing ocean winds drive moisture directly into those slopes, and we regularly find the north and west faces of a Westlake home needing full replacement while the south-facing side still has serviceable years left. Homeowners are often surprised by this uneven aging pattern. The salt-laden air corrodes exposed metal flashing faster than manufacturer’s rated lifespans would predict, and moss and lichen colonization is measurably more severe here than in San Mateo or other inland Peninsula cities.
Our Main Daly City Services
Most calls we get from Daly City homeowners fall into three categories: stopping an active leak, replacing a roof that’s reached end-of-life, or finding a roofing company they can trust to show up as promised. Each has its own page with full details.
Roof Repair in Daly City
Repair work in Daly City typically targets wind-lifted shingles on northwest exposures, corroded flashing at wall junctions, and moisture intrusion in the Doelger homes’ shallow-pitch valleys. We stock underlayment, fasteners, and sealants matched to coastal conditions, and we carry GAF and CertainTeed repair components on our trucks. Every repair comes with our written 365-Day Done Right Promise and a free second visit if the fix fails. Roof Repair in Daly City

Roofing Company in Daly City
Choosing a roofing company in Daly City means finding one that understands the local permit requirements and the specific challenges of working on tight rowhouse lots with limited staging space. We’re held to the Threshold Verified standard: every technician is background-checked, identity-verified, and arrives in a clean uniform with a photo ID badge. We send you their name and photo before they arrive, so you know exactly who is coming to your door. Roofing Company in Daly City

Roof Installation in Daly City
New roof installation on Daly City’s Doelger-era homes requires attention to ventilation upgrades that the original builders never included. We install Owens Corning and IKO shingle systems with proper intake and exhaust venting to combat the chronic moisture issues these homes face. Every installation begins with a written, line-item price and ends with a passed inspection and our 365-Day Done Right Promise. Roof Installation in Daly City

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Daly City
We install and repair using manufacturer-recognized brands including GAF, CertainTeed, Owens Corning, and IKO. Our Daly City crews carry common repair components for these lines on their trucks, which means most repairs don’t wait for a parts run. For full replacements, we provide material samples and written warranty terms before you sign. See our brands for full specifications.
Pricing for Roofers in Daly City, CA
| Service | Typical range in Daly City |
|---|---|
| Minor shingle repair (1 – 3 shingles) | $180 – $340 |
| Flashing repair (chimney or wall) | $350 – $650 |
| Valley leak repair | $450 – $850 |
| Partial roof replacement (1 – 2 slopes) | $3,200 – $6,500 |
| Full asphalt shingle replacement (1,500 sq ft) | $9,500 – $14,000 |
| Full asphalt shingle replacement (2,000 sq ft) | $12,000 – $18,500 |
| Full asphalt shingle replacement (2,500 sq ft) | $14,500 – $22,000 |
| Decking replacement (per sheet) | $85 – $150 |
| Ventilation upgrade (ridge + soffit) | $1,200 – $2,400 |
| Skylight repair/replacement | $650 – $1,800 |
Prices in Daly City run toward the higher end of these ranges when we encounter corroded flashing that has spread into adjacent decking, or when the persistent dampness has degraded underlayment beyond the visible shingle layer. We give you a written, fixed price before any work starts, and that price does not change once we’re on the roof.
Neighborhoods We Serve in Daly City
Our crews work across Daly City’s full footprint, from the coastal bluffs to the eastern hillside. Scheduling and dispatch are coordinated from our San Francisco Bay Area office, with technicians routed to Daly City addresses throughout the week.
- Westlake
- Serramonte
- St. Francis Heights
- Broadmoor
- Crocker
Service Area – Cities Near Daly City
We regularly route crews to homes just outside Daly City proper. If you’re in Brisbane, CA, South San Francisco, CA, San Bruno, CA, or Pacifica, CA, the same Threshold Verified technicians, upfront pricing, and 365-Day Done Right Promise apply. Call (743) 200-8347 and we’ll confirm coverage for your address.
Serving Daly City, CA - Our Local Coverage Area
We’re based in the Daly City 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 Daly City
Yes, the City of Daly City requires permits for full roof replacements and most structural repairs. We pull the permit, schedule the inspection, and ensure the work passes before we consider the job complete. Call (743) 200-8347 and we’ll walk you through what’s needed for your specific project.
We answer calls live 24/7 and typically schedule leak assessments within one to two business days for Daly City addresses. Emergency tarping is available when interior damage is active. For timing on your specific situation, call (743) 200-8347.
Many Westlake area homes fall under HOA or original Doelger covenant guidelines that specify approved colors and materials. We provide manufacturer sample boards and written specifications that meet most HOA submission requirements, and we’ve worked with these bodies before. Call (743) 200-8347 to discuss your specific association’s process.
Call (743) 200-8347 to schedule your free estimate. We’ll send you the technician’s name and photo before they arrive, provide a written price before any work starts, and back every repair with our 365-Day Done Right Promise.
What happens when you call
- 1A real person answersNo phone trees - talk to a local roofing pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Daly City Customers Say
"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."Full tear-off and new shingles on our two-story. They covered the landscaping with tarps and ran a magnet over the yard afterward. Didn't find a single nail."
- Karen V."Good roof repair. The crew was a day later than planned because of rain, which I understand, but the scheduling got moved twice. Work itself is clean and has held up."
- Dale T.






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