Bigger or unusual job? Compare bids from local pros and you pick who does the work.
The service
What spray foam insulation is, what a visit covers and where the line is.
The short answer
Spray foam insulation is a two-part liquid that expands as it is sprayed, filling gaps and bonding to framing to insulate and air seal in one step. Spray Foam Insulation in San Francisco is booked through pros who cover its 28 ZIP codes, in neighborhoods such as The Mission, Noe Valley, and The Sunset. SF's microclimates mean fog, wind, and moisture vary dramatically by neighborhood. Providers account for this in material selection. NorTech lists independent pros who set their own terms, and you choose which one to hire.
What a spray foam insulation visit includes
What is included depends on the jobs you pick and on how each pro sets up their visit and timing. You see the exact scope with each pro's price before you book.
- Evaluation of areas to insulate and ventilation needs
- Surface prep and masking of windows and floors
- Open-cell or closed-cell foam sprayed to target thickness
- Thermal barrier or ignition barrier where required
- Ventilation of the house during curing
- Final inspection and cleanup
Pick what is on your list
Tick what you want done, or add your own. Your list goes under the booking card and to the pro you choose, and you can describe anything else when you book.
Attics and roof decks
Tick what you want done. One visit can cover several.
Tick jobs above, or add your own. Your list goes under the booking card and to the pro you choose, so they see exactly what you need before they arrive.
What shapes a spray foam insulation job
These are the things that make one job different from another. Mention them in your notes so each pro can scope your job properly.
Choosing a spray foam type
The two main foams behave differently around moisture, strength and sound. Match the type to the space. Tap an option to compare, then add your pick to your job notes.
What is not part of spray foam insulation
Knowing where the line is keeps the visit on track and keeps you safe. When a job belongs to a specialist, NorTech tells you before you book.
- Any job where labor and materials together reach $1,000 or more. Such jobs are done by a licensed contractor, which you see before you confirm.
- Fixing roof leaks, plumbing leaks or rot found under the area to be sprayed.
- Electrical, gas appliance and ventilation changes needed because the space is now sealed. Those are licensed trades.
- Drywall or other thermal barrier over the foam, which is booked as drywall work.
- Removing existing insulation, mold or hazardous materials.
- Staying in the home during curing. Occupants and pets must be out for the time the installer specifies.
- In San Francisco, sF DBI permit requirements are among the strictest in California. Smaller jobs stay within the handyman exemption; permitted work is bid on by NorTech-verified licensed contractors.
License and permits for spray foam insulation
Spray foam is applied by trained installers who handle chemicals and respirators, and in many places the installer holds a contractor license. Ask the pro how they follow the manufacturer's instructions on mixing, thickness and cure time.
Insulation upgrades are often part of a permitted remodel or energy-code project, and some jurisdictions require inspection of foam thickness and fire barriers. Ask the pro whether a permit applies.
The pro's profile shows their license and background check status. Ask which foam product they use, the thickness they plan, and the barrier they will install.
Plan your visit
How booking works, how to get ready, and what to expect where you live.
How booking spray foam insulation works
Say what needs doing
Add your ZIP and a few words about the job.
Compare pros near you
Each pro sets their own price and warranty. NorTech does not pick for you.
Book the pro you pick
Add photos and details on their page. Your card is held and only charged after the work and the photos.
Photos and a warranty
Your pro backs the work with a workmanship warranty — if covered work is not right, your pro makes it right, free.
Before you book spray foam insulation
Quick things that save a trip. Tick them off as you go; none of it is required to book.
Fix leaks and moisture first
Roof, plumbing and crawlspace leaks should be repaired before foam, since sealing wet framing hides rot and mold.
Photograph the space
Photos of the attic, rim joist or crawlspace show access, existing insulation and obstacles, so pros can quote thickness and time.
Plan electrical work before spraying
Foam buries wiring and boxes. Add outlets, fixtures and repairs first, and ask your electrician about recessed lights and old wiring.
Arrange to be out of the house
Plan for everyone, including pets, to stay elsewhere for the time the installer specifies. Ask for the written re-entry instructions.
Ask about the barrier
Ask what thermal or ignition barrier the pro will install over the foam, and whether it meets local code.
Ask about the product and thickness
Ask which foam, what thickness and what R-value target the pro plans for your climate, and how they will verify it.
Say where in San Francisco you are
Add your neighborhood, for example The Mission, Noe Valley, and The Sunset, or your ZIP code to your notes. Pros choose the neighborhoods they cover, and it tells them how far they have to travel.
How where you live changes spray foam insulation
Often booked together with spray foam insulation
Book several services with one pro. Pros set their own bundle discounts.
Batts or blown-in insulation can be combined with foam sealing in the same space.
A ground vapor barrier works with foam on crawlspace walls.
In hot climates, a radiant barrier is another way to reduce attic heat gain.
Foam in living spaces often needs a drywall thermal barrier over it.
Around San Francisco
Where in San Francisco the work happens, and the cities close by.
Spray Foam Insulation across San Francisco
Pick your neighborhood to see what homes there tend to need. Pros choose the neighborhoods they cover, so enter your ZIP code to see who covers yours.
Cities near San Francisco
Pros often cover more than one city. The rings show 5 and 10 miles from the center of town.
Other services in San Francisco
Each one has its own page for this city.
Ideal for the long punch list of small fixes that pile up in older SF Victorians and Edwardians, from sticking doors to loose trim, with each pro's visit price shown before you book.
See pros in San FranciscoMany SF flats have original plaster-and-lath walls that crack with settling and seismic movement, and providers can patch both plaster and modern drywall cleanly.
See pros in San FranciscoTall ceilings, ornate Victorian moldings, and compact condo rooms all get a fresh, even finish that holds up to the city's damp, foggy microclimates.
See pros in San FranciscoPerfect for pre-sale punch lists and turnover on TIC units, condos, and rentals across high-turnover neighborhoods like SoMa and the Mission.
See pros in San FranciscoOriginal SF doorways shift on steep-slope foundations, so providers re-hang, adjust, and weatherproof doors that stick or no longer latch in older homes.
See pros in San FranciscoDrywall hanging, taping, mudding and sanding for new rooms, additions and framed-out spaces, ready for primer and paint.
See pros in San FranciscoTrust and answers
What backs the work, who is licensed and insured, what customers say, and your questions.
Backed by your provider’s warranty. If covered work fails, your provider makes it right, free.
San Francisco homeowners
Spray Foam Insulation reviews in San Francisco
Verified spray foam insulation reviews from San Francisco homeowners will appear here.
Be the first spray foam insulation review in San Francisco
Your pro backs the work with a workmanship warranty — if covered work is not right, your pro makes it right, free. Book with confidence and tell San Francisco how your pro did.
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