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Our 2-ply Polyfresko torch down roofing systems provide long-lasting, waterproof protection for flat and low-slope roofs. Designed for durability and performance, this system is ideal for residential, multi-family, HOA and commercial buildings across San Francisco, Los Angeles and the Bay Area. Waterproof protection, durable and long lasting, UV and heat resistant, ideal for flat roofs, professional installation.
RESIDENTIAL HOMES
APARTMENTS & HOAs
COMMERCIAL BUILDINGS
LOW-SLOPE ROOFS

Ask ten San Francisco owners about their roof and you get the same complaints: the same three details cause most of the leaks we are called out for. We are roughly 337 miles northwest of San Francisco, close enough for a same-day look at a leak.
Crews rotate through Daly City, South San Francisco and Oakland, so nothing about these streets is new to us.
The first big storm books out the whole trade, so earlier is cheaper. Everything starts with a free inspection and a written number for your San Francisco property.
Underlayment is where corners get cut; we use the system the manufacturer warrants.
Before we quote we check the deck, the ventilation, the flashings and the drainage. Three of those four are invisible from the ground, and all four decide how long the roof lasts.
The questions we hear most in San Francisco are about price, timing and whether a repair will hold. We answer all three before you commit, and we put the answers in writing.
When the crew leaves, the debris leaves with them: magnet passes morning and evening, gutters cleared, driveway swept. You get photos of the finished work and the warranty paperwork registered in your name.
You get the manufacturer warranty on the materials and ours on the workmanship, both in writing.
The job list in San Francisco repeats itself for a reason - the weather here punishes details, not products. Being 337 miles northwest of San Francisco, we can be on the roof before the next rain band arrives.
The roofs in Daly City, South San Francisco and Oakland are built much the same way, and they fail the same way.
Book in the dry months and the whole job happens on dry decking. The first step is a free look at the San Francisco roof and a number you can hold us to.
When the crew leaves, the debris leaves with them: magnet passes morning and evening, gutters cleared, driveway swept. You get photos of the finished work and the warranty paperwork registered in your name.
We do not use subcontract crews we have never met. The people on your San Francisco roof are the people we train, and they carry our workers' compensation.
The questions we hear most in San Francisco are about price, timing and whether a repair will hold. We answer all three before you commit, and we put the answers in writing.
Everything below is the same crew, same city, same free inspection.
TORCH DOWN ROOFING SAN FRANCISCO, CA
Across San Francisco County, San Francisco has its own wear pattern, because whatever fails first on these roofs fails at the edges. The shop is about 337 miles northwest, which is why we can be out the same day.
Crews rotate through Daly City, South San Francisco and Oakland, so nothing about these streets is new to us.
We would rather find the problem in the dry months and fix it on a schedule. The inspection is free, and so is the second opinion if you already have a quote.
We photograph every slope and penetration so you see what we see before deciding anything.
Before materials come into it, the site decides the job: in San Francisco, fog drip keeps the north side wet long enough to grow moss. We are 337 miles northwest of San Francisco; crews pass through most days anyway.
We know Daly City, South San Francisco and Oakland as well as we know San Francisco.
A roof opened in October is a different job from one opened in January. Expect photos, a measured scope and a number you can compare against anyone else.
You get a start date and a finish date in writing, and we hold them.
FREQUENTLY ASKED
Find answers to common questions about torch down roofing in San Francisco.
CLEAR ANSWERS. LOCAL EXPERTISE.
SAN FRANCISCO, CA TORCH DOWN ROOFING
For most flat and low-slope roofs in San Francisco, yes. Two plies of modified bitumen with heat-welded seams handle ponding and UV far better than patching.
We do. Permits and inspections go through the local building department and we handle the paperwork rather than leaving it to you.
We carry the permits and insurance for hot work, run a fire watch and keep extinguishers on the roof. Where open flame is not appropriate we quote a cold-applied or coating system instead.
A modified bitumen base sheet torched to the deck or cover board, with a white Polyfresko cap sheet over it. The white surface reflects heat instead of holding it.
Installed to spec, twenty years and up, with a manufacturer warranty of 10, 20 or 25 years depending on the system.
Tear-off debris leaves the same day. Driveways are swept, gutters cleared and a magnet pass runs morning and evening, which matters on a street with kids and pets.
Most single-family roofs in San Francisco are done in two to four days once materials are on site. Larger or steeper roofs, or jobs with deck repairs, run longer and we say so up front.
Yes. Panels are detached and reset on a schedule that matches the roofing crew, and the penetrations are re-flashed properly when they go back.
San Francisco sits next to these, and we cover all of them from the same trucks:
We cover Hayes Valley, SoMa, Western Addition, Japantown and Mission District from the same yard as San Francisco. No travel surcharge between them.
Everything below is the same crew, same city, same free inspection.