Insulation Company in San Francisco, CA
Most insulation work in San Francisco runs between $900 and $2,400 depending on square footage, access, and the R-value you need. This city’s housing stock, dense neighborhoods, and famous fog create conditions you won’t find in the East Bay or down the Peninsula. Laurel Attic Insulation works on everything from 1906-era Victorians in the Mission to 1970s Sunset District row houses, and we handle the whole job from first call to final photo. Need a quote today? Call (361) 315-4177 and a live person answers, 24/7.
Why San Francisco Homes Are Different
San Francisco insulation jobs come down to three things: age, microclimate, and access. The median home here was built before 1950, which means we’re often working around knob-and-tube wiring, true dimensional lumber, and attics that were never designed to hold insulation at all. Add the microclimates, and you get real variation block by block: a house in the Outer Sunset needs different performance from an attic than a flat in Noe Valley, because one sits in fog for 200 days a year and the other gets real afternoon sun. Moisture is the quiet enemy in this city. The same marine layer that keeps the bougainvillea happy also pushes humidity into vented attics, and we regularly open up attics in the Richmond and find insulation that’s been quietly soaking up damp for years. That’s why we don’t just blow in material and leave; we check the ventilation picture first. Multi-story Victorians and Edwardians also mean tight attic hatches, narrow stairwells, and roofs with aggressive pitches. Our crews deal with that every week. If you live in a condo or a building with an HOA, plan for one extra step: most associations here want a copy of the certificate of insurance before anyone goes into a shared attic or crawl space. We provide that same day.
Our Main San Francisco Services
The two calls we get most from San Francisco homeowners are attic insulation upgrades and old insulation removal, and spray foam rounds out the set for people who want to air-seal the same day.
Attic Insulation in San Francisco
Attic insulation in San Francisco means matching material to a 100-year-old framing system, not just topping off the fluff. We measure the existing R-value first, because in this city you’ll find everything from zero insulation in a 1910 flat to compressed fiberglass from the 1980s that’s doing almost nothing. Blown-in fiberglass and Rockwool are common picks here; they handle the damp air better than most people expect. R-value is the number that measures how well insulation slows heat from moving through your ceiling. Most San Francisco homes need R-38 to R-49, but older attics with shallow joists may max out lower unless we build up. See the full breakdown at Attic Insulation in San Francisco.
Spray Foam Insulation in San Francisco
Spray foam earns its keep in San Francisco because it does two jobs at once: it insulates and it air-seals. In a warm, moist attic, air sealing matters as much as R-value, because it stops humid outside air from condensing against cold framing. Open-cell foam works well in vented attics where you want some breathability; closed-cell handles the opposite case and doubles as a moisture barrier. We install both, and we match the foam to the attic rather than the other way around. Small attics with rough access are common here, but our crews are set up for exactly that. Details on materials and timing are on Spray Foam Insulation in San Francisco.
Insulation Removal in San Francisco
Removal is the step most San Francisco attics skip, and it’s the step they usually need. Old insulation that’s been wet, compacted, or turned into a rodent highway stops working and starts holding moisture against your ceiling. We see this constantly in flats where decades of fog and a leaky roof went unnoticed. We remove the old material, bag it, and get it out through whatever access the house has; on a third-floor walkup in the Inner Richmond, that process is more involved than on a single-family with a pull-down ladder. Then we prep the space for new material. Read the full walkthrough at Insulation Removal in San Francisco.
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 San Francisco
We install and service insulation from Owens Corning, Johns Manville, Knauf, and Rockwool. We stock the common batts and bags locally, which keeps most San Francisco jobs on schedule without waiting on a distributor. More detail is on our brands page.
Pricing for Insulation Company in San Francisco, CA
| Service | Typical range in San Francisco |
|---|---|
| Attic insulation (blown-in fiberglass, 1,000 sq ft) | $1,600 – $2,400 |
| Attic insulation (blown-in cellulose, 1,000 sq ft) | $1,400 – $2,200 |
| Batt insulation (attic floor, 1,000 sq ft) | $900 – $1,700 |
| Radiant barrier (attic underside of roof deck) | $1,200 – $2,000 |
| Spray foam (open-cell, 1,000 sq ft attic) | $2,000 – $3,400 |
| Spray foam (closed-cell, 1,000 sq ft attic) | $2,800 – $4,800 |
| Insulation removal (1,000 sq ft attic) | $800 – $1,600 |
| Air sealing package (with any insulation job) | $400 – $900 |
What pushes the price up in San Francisco is access: a third-floor attic with a narrow hatch and no staging area costs more than a garage-adjacent attic with a ladder. Steep roofs and HOA scheduling windows can add time too. Whatever the number, you get it in writing before anything starts.
Neighborhoods We Serve in San Francisco
We run crews across San Francisco every day, and we know the difference between a Marina flat and an Excelsior single-family when it comes to parking, access, and attic geometry. Our typical response time for a San Francisco job is one to three days, depending on the crew schedule and what the attic needs.
- The Richmond (Inner and Outer)
- The Sunset (Inner and Outer)
- The Mission and Noe Valley
- Marina, Pacific Heights, and Cow Hollow
- Bernal Heights and Glen Park
Service Area – Cities Near San Francisco
We also take jobs in the cities right around San Francisco, where the housing stock can shift from Victorian to mid-century in the space of a mile. That includes Daly City, CA, where the fog rolls in even harder, and South San Francisco, CA with its mix of hillside homes and flat 1950s tracts. Across the water, we serve Sausalito, CA and Alameda, CA, both with their own distinct attic challenges.
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 Insulation Company in San Francisco
Most San Francisco jobs get on the calendar within one to three days. If you have an emergency like a burst pipe in the attic or wet insulation after a leak, call (361) 315-4177 and we’ll do our best to get a crew there same day. A live person answers, always.
If you’re in a condo or a building with an HOA, yes, most require a certificate of insurance and sometimes written notice before attic or crawl space work. We provide the certificate same day. Single-family homes rarely need a permit for insulation alone. If you’re unsure, call us and we’ll walk you through what your address needs.
We cover the entire city, from the Outer Richmond to Bayview and from the Marina down to the Excelsior. If your attic is in San Francisco, we’ll get to it. For an exact quote and a written price before work starts, call (361) 315-4177. Estimates are free.
What happens when you call
- 1A real person answersNo phone trees - talk to a local insulation pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3A background-checked tech heads outLicensed & insured, typically within 30-60 min.
- 4You approve before work beginsNothing starts until you say go.
What San Francisco Customers Say
"Solid install. A little mess in the hall that was cleaned up when I mentioned it."
- Amelia T."Easy to book and easy to pay. The invoice came by text and I paid it from the driveway."
- Rudy B."Utility bill dropped the next month. Our summer electric bill was lower by a visible amount."
- Gary J.