Insulation Company in Santa Rosa, CA
Woolsey Attic Insulation is a Santa Rosa insulation company focused on attic insulation and spray foam insulation, with every job covered by a written price before work starts and a 365-day guarantee in writing. Santa Rosa homes are different from what you’ll find an hour south near the Bay: we work on post-2017 Tubbs Fire rebuilds in Coffey Park and Fountaingrove alongside 1950s and 60s tract homes with original insulation, often on the same day. If you need an honest assessment of what’s in your attic and what it should cost to fix, call us at (325) 240-5411 and a live person will answer.
Why Santa Rosa Homes Are Different
The 2017 Tubbs Fire destroyed more than 5,000 structures in Santa Rosa, most of them entire neighborhoods in Coffey Park and Fountaingrove. What followed was one of California’s largest residential rebuilding waves, with nearly every new home required to meet current Title 24 energy standards. Many of those rebuilds went in with spray foam or blown-in mineral wool. But walk two streets over in an older pocket of Santa Rosa, and you’ll find mid-century homes from the 1950s through the 70s still running on original or heavily degraded insulation. Some owners don’t find out until August, when the second floor won’t cool below 80.
Santa Rosa’s climate adds another layer. The city sits far enough inland to miss the coastal fog that keeps Petaluma and San Rafael mild. Fall Diablo wind events routinely push temperatures past 100°F, while winter nights drop into the mid-30s. That’s a huge thermal swing for a house to absorb, and it’s why undersized attic insulation in Santa Rosa produces both sweltering upstairs rooms in September and high heating bills in January. In Coffey Park specifically, we regularly see inconsistent insulation strategies house-to-house on the same block: one home has open-cell spray foam at the roofline, the neighbor two doors down has blown-in fiberglass at the attic floor. The result is a patchwork of utility bills, and it means a proper attic inspection has to look at what was actually done in that particular house, not what the neighborhood norm should be.
Our Main Santa Rosa Services
Most Santa Rosa homeowners call us for one of two jobs. Both start with the same thing: a written price before any work begins.
Attic Insulation in Santa Rosa
Attic insulation is the workhorse fix for Santa Rosa’s older housing stock. We remove degraded batting, air-seal the attic floor to stop conditioned air from leaking into the vented space, and blow in fresh insulation to the R-value your home needs for this climate. In mid-century tracts near Coddingtown and Montgomery Village, we often find original fiberglass batts that have compressed to half their rated thickness, which means the label on the paper facing no longer describes what’s actually insulating your ceiling. Attic Insulation in Santa Rosa gets into the specifics of materials, R-values, and what a typical job looks like from start to finish.
Spray Foam Insulation in Santa Rosa
Spray foam insulation is a two-part liquid that expands on contact and seals gaps airtight. It’s the material many Coffey Park and Fountaingrove rebuilds used at the roofline, and it’s also the right choice for Santa Rosa homeowners with odd attic geometries, knee walls, or ductwork running through unconditioned space. Because Santa Rosa’s Diablo wind events can drive outdoor air into the attic through small gaps, an airtight spray foam application changes how the whole enclosure performs during those hot, dry fall days. Spray Foam Insulation in Santa Rosa covers open-cell versus closed-cell, where we recommend each, and what the installation process actually looks like.
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 Santa Rosa
We install and service materials from Owens Corning, Johns Manville, Knauf, and Rockwool, among others. That matters in Santa Rosa because the right material for a 1962 ranch in the Junior College neighborhood isn’t necessarily the right material for a 2019 Coffey Park rebuild. If you have a preferred brand or just want a straight recommendation, call us and we’ll walk you through what we’d put in your attic and why. Learn more about our brands.
Pricing for Insulation Company in Santa Rosa, CA
| Service | Typical range in Santa Rosa |
|---|---|
| Attic insulation removal and disposal | $0.75 – $1.50 per sq ft |
| Blown-in fiberglass attic insulation (R-38) | $1.50 – $2.75 per sq ft |
| Blown-in cellulose attic insulation (R-38) | $1.25 – $2.50 per sq ft |
| Mineral wool (rockwool) batt attic insulation | $2.50 – $4.00 per sq ft |
| Air sealing (attic floor, before insulation) | $400 – $1,200 per home |
| Spray foam insulation (open-cell, attic or walls) | $2.00 – $4.50 per board foot |
| Spray foam insulation (closed-cell, attic or walls) | $2.50 – $6.00 per board foot |
| Attic insulation top-up over existing material | $1.00 – $2.00 per sq ft |
| Rim joist insulation (spray foam) | $300 – $800 per home |
| Full attic inspection with written report | $150 – $300 |
What pushes a Santa Rosa job toward the top of those ranges is usually access. Older homes with low-pitch roofs and tight attic hatches take longer to move material in and out. Post-fire rebuilds with steep rooflines and spray foam at the roof deck can require scaffolding or specialized rigging. Whatever the number is, you’ll have it in writing before any work starts. We don’t adjust pricing at the door.
Neighborhoods We Serve in Santa Rosa
We work across Santa Rosa, from the post-fire rebuild corridors to the older mid-century tracts and the historic pockets near downtown. Most jobs are scheduled within a few days, and emergency calls get a same-day response when we have a crew free.
- Coffey Park
- Fountaingrove
- Junior College
- Coddingtown and Montgomery Village area
- Railroad Square historic district
Service Area – Cities Near Santa Rosa
Woolsey Attic Insulation serves Santa Rosa and the surrounding communities throughout Sonoma County. If you’re in Sebastopol, CA, Windsor, CA, Rohnert Park, CA, or Cotati, CA, give us a call at (325) 240-5411 and we’ll let you know when we can get a crew to your home.
Serving Santa Rosa, CA - Our Local Coverage Area
We’re based in the Santa Rosa 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 Santa Rosa
Most Santa Rosa homes can be scheduled within 2 to 4 business days. Emergency calls, like a collapsed attic hatch or an insulation issue discovered during escrow, get priority and can often be handled same-day. Call (325) 240-5411 and a live person will give you a real arrival window, not a four-hour range.
Most attic insulation and air sealing work in Santa Rosa falls under routine maintenance and doesn’t require a city permit. If your project is tied to a larger renovation with structural changes, your general contractor will pull the permit. We’ll tell you upfront if your specific job needs anything beyond standard scope.
Yes. We inspect and upgrade insulation in Coffey Park and Fountaingrove rebuilds as often as we do in 1950s and 60s tract homes. The two housing stocks have different problems: one has inconsistency between neighboring houses, the other has age and degradation. A phone call and a quick look in your attic usually tells us which situation you’re in. Call (325) 240-5411 to schedule an inspection.
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 Santa Rosa Customers Say
"Spray foam in the crawlspace and new attic insulation. They wrote up the whole price and the two jobs came in exactly as quoted. Floors upstairs aren't freezing in the morning anymore."
- Nathan Pruitt"Showed up on time, laid down protection on the floors, and were careful going into the attic. Explained exactly what they were doing and why. House holds its heat so much better now."
- Preston Hale"Insulation job was done well. Scheduling took a little longer than I'd have liked, they were booked out a couple weeks. But once they came it was quick and the house is cozier."
- Felicia Grant