Full Roof Replacement in San Francisco, CA

Full Roof Replacement in San Francisco, CA

A full roof replacement in San Francisco typically runs between $14,000 and $32,000 for an average single-family home, with most jobs landing in the $18,000 to $26,000 range. The job means stripping everything down to the decking and rebuilding the roof system from the deck up: new underlayment, new flashing, new drip edge, new shingles or tile. It’s a bigger commitment than a repair, but when the roof has reached the end of its life, patching it year after year costs more in the long run than doing it right once. If you’re weighing repair against replacement, this page and our Roof Replacement & Installation in San Francisco guide will give you the real numbers.

Brennan Roofing Co San Francisco handles full replacements under The Garrison Standard. That means the price goes on paper before any work starts, background-checked uniformed technicians show up inside the promised window, and every roof is backed by the 365-Day Done Right Promise in writing. Call (831) 318-8819 and you’ll get a live person on the line, not a voicemail queue.

Key Takeaways

• Full replacement in San Francisco typically costs $14,000 – $32,000, with most homes falling between $18,000 and $26,000.
• Most full replacements take 3 to 7 working days, depending on slope, height, and the condition of the decking underneath.
• We put the written price in your hand before any work starts and it does not move at the door.
• Every full replacement is covered by the 365-Day Done Right Promise: one full year, in writing, with a free return visit if anything fails.

When You Need Full Roof Replacement

Not every roof problem calls for a full replacement. But there are signs that tell us the roof has passed the point where repairs make financial sense. Here’s what we see most often in San Francisco, from the Sunset to Bernal Heights:

• Shingle granule loss that’s left bare patches. In fog-heavy neighborhoods like the Outer Sunset and Parkside, constant moisture accelerates asphalt shingle breakdown. If your gutters are filling with granules after every rain, the shingles are losing their protective layer and the clock is running.
• Curling, cracked, or missing shingles across multiple slopes. A few damaged shingles is a repair. Damage spread across three or more roof planes usually means the whole system is aging out.
• Leaks that keep coming back in different spots. When one leak gets patched and another appears six months later, the underlayment is likely compromised. We see this a lot in older Richmond District and Noe Valley homes where the original tar paper has dried out and split.
• Daylight visible through the attic boards. If you can see light coming through the decking from inside the attic, water can get through too. That’s a structural sign the roof system itself is failing, not just the surface layer.
• Flashing that’s rusted through or pulling away at the chimney, skylights, or roof-to-wall transitions. San Francisco’s salt air and wind-driven rain are hard on flashing. Once flashing fails at multiple penetrations, you’re chasing leaks, not solving them.
• Your roof is past its expected service life. A standard asphalt shingle roof in San Francisco’s climate typically lasts 18 to 25 years. If you’re past that and considering a repair, replacement is usually the better money.

If you’re not sure which category your roof falls into, we’ll tell you straight. An inspection is free, and we’d rather tell you a repair will hold than sell you a replacement you don’t need.

Our Full Roof Replacement Process

Here’s exactly how a full replacement works when you hire Brennan Roofing Co San Francisco. No surprises, no vague timelines, no crew you don’t recognize showing up at your door.

1. Free roof inspection and written assessment. We walk the roof, check the attic, and document what we find. You get a plain-English explanation of what’s failing, what can wait, and what needs attention now.
2. Written price before any work starts. The quote goes on paper: labor, materials, tear-off, disposal, and any decking work we expect based on what we saw. The price you sign is the price you pay. It does not move at the door.
3. Tear-off to the decking. We strip every layer down to the structural decking. That’s the only way to know what’s actually underneath. If we find rotted or water-damaged decking, we photograph it, show you, and price any additional work before touching it.
4. Rebuild from the deck up. New underlayment, new drip edge, new flashing at every penetration, and then the shingle or tile system you selected. We install materials from GAF, CertainTeed, and Tamko, among others, and we explain the real differences between them so you can choose with confidence, not guesswork.
5. Daily cleanup and final inspection. The job site is cleaned every day while work is in progress, and at the end we do a magnetic sweep for stray nails and a final walkthrough with you. You approve the roof before we call the job done.
6. The 365-Day Done Right Promise in writing. Every full replacement is guaranteed for one full year. If anything fails within that period, we come back and make it right at no charge. That’s not a verbal promise. It’s on paper.

Full Roof Replacement Pricing in San Francisco

Here’s what we’re seeing in 2025 across San Francisco for full roof replacements on standard single-family homes. These are honest ranges, not lowball teasers meant to get a salesperson in the door.

Roof Type	Typical Range (San Francisco)	Notes
Asphalt shingle (architectural)	$14,000 – $24,000	Most common; best cost-to-lifespan balance in our market
Asphalt shingle (premium / designer)	$19,000 – $32,000	Heavier shingles; may require decking reinforcement on older homes
Composite / synthetic (e.g., Boral products)	$22,000 – $38,000+	Long lifespan; higher material cost; good fit for coastal exposure
Standing seam metal	$28,000 – $50,000+	Premium option; longest lifespan; best for severe weather exposure

What moves the price up or down on any given roof:

• Decking condition. If the plywood or plank decking underneath is rotted or water-damaged, replacing sections adds material and labor cost. We won’t know the full extent until the old roof is off, but we’ll tell you what we expect from the attic inspection before you sign anything.
• Roof pitch and height. San Francisco has a lot of steep Victorians and Edwardians. Steep roofs are slower, safer work and cost more per square foot than a low-slope roof in the Sunset or Excelsior.
• Layers underneath. If there are two or three layers of old roofing that need to be torn off, the tear-off labor and disposal fees go up. San Francisco has specific disposal requirements, and we handle all permits and hauling.
• Flashing complexity. More chimneys, skylights, dormers, and roof-to-wall transitions means more flashing work, and flashing is where leaks start if it’s done wrong.
• Material choice. A premium shingle from CertainTeed or a composite from Boral costs more up front but carries a longer expected lifespan. We’ll show you the numbers side by side and let you decide.

Every estimate we give is free, and it’s a real number on paper, not a range with a wink. Call (831) 318-8819 and we’ll get you scheduled.

Why San Francisco Roofs Fail Differently

San Francisco is not a typical roofing market, and a roofer who treats it like Sacramento or San Jose is going to leave problems behind. Three things define what we deal with here:

Fog and marine moisture. Neighborhoods west of Twin Peaks, like the Sunset, Richmond, and Parkside districts, sit in fog for months at a time. That constant moisture works its way under shingles, degrades underlayment, and promotes moss and algae growth that shortens roof life. We select underlayment and ventilation details specifically for that exposure.

Wind-driven rain. Homes on the west-facing slopes and along the ocean side of the city, including Sea Cliff and Outer Richmond, get rain that comes sideways. Flashing details that work fine in a calm inland rain will leak here. We use heavier-gauge flashing and more aggressive sealing at roof edges than you’d see on a typical suburban roof.

Victorian and Edwardian construction. A huge portion of San Francisco’s housing stock was built between 1880 and 1930. Those roofs were framed differently, the decking is often plank or skip-sheathing rather than plywood, and the roof-to-wall details are irregular. A full replacement on one of these homes requires a crew that understands old construction, not just new construction techniques.

This is why we don’t send out contractors or day laborers. Our technicians are background-checked, uniformed, and trained to work on San Francisco’s specific housing stock, and they answer to our name every day.

Materials We Install and Why We Carry What We Carry

We install shingles and roofing systems from several major manufacturers, and we carry multiple lines because different roofs need different things. Here’s how we think about the brands we stock:

• CertainTeed is our go-to for architectural shingles when a homeowner wants a strong warranty, good color selection, and proven performance in coastal climates.
• GAF products are a solid choice for homeowners who want a well-established shingle with broad availability and a strong track record in the Bay Area market.
• Tamko offers competitive pricing on architectural shingles without sacrificing the basics, which makes it a good fit when budget is a factor but you still want a quality installation.
• Boral composite products are the pick when the homeowner wants maximum longevity and strong coastal weather resistance. They cost more up front, but the expected lifespan justifies it on homes in high-exposure locations.

We don’t push one brand over another. We explain the real differences in cost, lifespan, and warranty, and you choose. The installation is the same high standard either way.

FAQs – Full Roof Replacement

How much does a full roof replacement cost in San Francisco?

A full roof replacement in San Francisco typically costs between $14,000 and $32,000, with most standard single-family homes landing between $18,000 and $26,000 for architectural asphalt shingles. The exact number depends on roof size, pitch, decking condition, and material choice. Call (831) 318-8819 for a free written estimate with real numbers.

How long does a full roof replacement take?

Most full replacements in San Francisco take 3 to 7 working days. Steep Victorian roofs with complex flashing take longer than low-slope roofs with simple footprints. Weather can add delays, especially during the winter rain season. We’ll give you a written timeline with your estimate and stick to it.

Is it cheaper to repair or replace my roof?

If the roof is leaking in one isolated spot and the rest of the system is in good shape, a repair is cheaper. If the roof is nearing or past its expected lifespan and problems are spreading, replacement is usually the better money. We’ll tell you which one applies to your roof based on what we see, not based on what makes us more profit.

Do you handle permits and disposal for full roof replacements in San Francisco?

Yes. We handle all San Francisco building permits, and we arrange for full disposal of the old roofing materials, including all tear-off, hauling, and landfill or recycling fees. The permit and disposal costs are itemized in your written estimate, so you know exactly what you’re paying for.

Can you come out today to look at my roof?

We can usually get an inspection scheduled within 24 to 48 hours, and emergency inspections for active leaks are prioritized. Calls are answered by a live person 24/7 at (831) 318-8819. If you’ve got water coming in, tell us and we’ll move fast.

Contact Brennan Roofing Co San Francisco

If you’re considering a full roof replacement and you want a written number before any work starts, call (831) 318-8819. You’ll get a live person, a straight answer, and a free inspection with no obligation. Travis Oakley and the crew at Brennan Roofing Co San Francisco serve the entire city, from the Outer Sunset to the Bayview, and every roof we install carries the 365-Day Done Right Promise in writing. We don’t do door-pressure sales and we don’t move the price after you sign. The price goes on paper before any work starts. That’s The Garrison Standard, and it’s the same on every job we do.

Written by Travis Oakley, Owner at Brennan Roofing Co San Francisco, serving San Francisco.