Spray Foam Insulation in Santa Rosa, CA

Find top-rated spray foam contractors and save up to 27% on energy bills

Compare 8 verified spray foam insulation contractors serving Santa Rosa, California, backed by 529 customer reviews averaging 4.5★. Whether you're insulating a new build, retrofitting an existing home, or upgrading attic and crawl-space insulation, these pre-screened Santa Rosa contractors handle both open-cell and closed-cell spray foam. Homeowners here typically cut energy bills by around 27% — get free quotes and read verified reviews below.

💰 Estimated Energy Savings in Santa Rosa

27%
Average Energy Savings
Typical range: 22% - 32%
$1,134
Estimated Annual Savings
Based on $350/month average energy cost
5 years
Average Payback Period
Return on investment timeline

Note: Actual savings vary based on home size, current insulation, energy rates, and climate conditions. These estimates are based on Department of Energy data for Hot-Dry.

Verified Contractors in Santa Rosa

5⭐
66 Google reviews

Recent Reviews:

Barbara Aman★★★★★4 months ago

Great response and great customer service from beginning to end in all aspects of the work. Daniel and crew were skilled and friendly. Everyone liked their work, supportive of each other and if me the customer. Very refreshing to experience this.

Sam Marsh★★★★★2 weeks ago

I am so impressed with this company. From start to finish, every point of contact was professional and thorough. Customer service and follow-up is excellent. The work was completed on budget and on time and every single person I had any contact with was knowledgeable, polite and competent. I would never hesitate to recommend them!

Michelle Egan★★★★★3 weeks ago

Clean CrawlSpace is definitely the right choice for the work to be done. Diego and Dave replaced a sump pump, did extensive drainage drilling and installed a much needed moisture barrier under the house. They did it in the time anticipated and they cleaned up at the end of each day, a very important service expectation of mine. Thank you.

4.9⭐
35 Google reviews

Recent Reviews:

Ken Pritchard★★★★★3 months ago

Insulation Solutions arrived on time, accompanied by three professional, courteous, and attentive workers who genuinely cared about my satisfaction. They meticulously taped off my garage and left the area in pristine condition, as if they had never been there. The service was exceptional, and the pricing was competitive and fair. I express my sincere gratitude to Gabriel for delivering an outstanding job.

Gordan Stillman★★★★★a week ago

This is my first time needing help installing floors. The last crew I hired wasn't this fast or affordable. And when I called, everybody I came in contact with was nice and patient. I felt like an actual valued customer. If I had to call then again, I wouldn't even hesitate.

Gee There★★★★★a week ago

Hands down, the best installers I've ever hired so far. I needed assistance with drywall and also in my bathroom. After a quick conversation, they handled the situations like professionals. I am truly thankful.

4.8⭐
367 Google reviews

Recent Reviews:

Soren Patel★★★★★a month ago

I recently had Atticare come out to clean and insulate both my attic and crawlspace, and I can’t say enough good things about the experience! Sean was my technician — super friendly, on time, and clearly knew his stuff. He showed me photos before and after, explained everything in plain English, and made sure I understood exactly what was being done.

Jimmy Galeota★★★★★in the last week

I recently had Atticare come out to my house last year to remove old insulation and then lay down new insulation along with rodent proofing the attic. A little over a year later Rats were still getting into my Attic and even though my warranty had expired Attic care was nice enough to send out their engineer Kyle to address the issue. Kyle spent several hours at my house today to do a thorough inspection and rodent proofing of any access areas were the rats might be getting into my attic. Kyle also repaired my air ducts the rats were chewing, cleaned up the attic of any droppings and completely sanitized. Very happy with the follow up work Kyle was able to complete today.

Patrick R★★★★★2 months ago

I recently used Atticare for my home in Pasadena, and I can honestly say it was one of the best home service experiences I’ve ever had. The team showed up right on time, explained the process in detail, and got to work right away. They removed the old insulation, cleaned and sanitized the attic, and installed fresh insulation that made my home feel instantly more comfortable. What impressed me most was how thorough and professional they were. They didn’t just do the job—they also sealed entry points and made sure my attic was protected for the long term. It’s such a relief to know my home is cleaner, safer, and more energy efficient. I highly recommend Atticare 5 stars all the way!

4.8⭐
41 Google reviews

Recent Reviews:

Tom★★★★★a month ago

Miquan and his crew were a delight to work with. They were knowledgeable and completed the work in a very professional manner. Their quote was very competitive and they delivered exactly what they promised. Anyone considering re-insulation should jump at the chance to use there services. I am a very happy customer.

Kari Farinas★★★★★5 months ago

My husband and I are impressed with their responsiveness to all my questions and quality of their work. We did not have insulation in the house and needed it installed asap in our exterior walls due to miserable overheating in the house. They took good precautions to cover the floors and furniture, took their time to do the job right, finished everything in the estimated time frame, and took care when cleaning up. They just left and we already feel the difference in temperature. We are very happy and totally recommend this company!

Kapil Mullapudi★★★★★3 months ago

Excellent work by Miquan and his team! They completed attic insulation, spray foam for my loft, and full duct replacement. Miquan was very knowledgeable, took time to explain what my house needed, and was always prompt with responses. The team was extremely professional throughout the project - respectful of my home, arrived on time, and maintained a clean work area. They actually finished the job ahead of the promised timeline, which was a pleasant surprise. Quality workmanship throughout and I’m already seeing improved comfort and energy efficiency. Highly recommend for insulation and ductwork services.

4.4⭐
9 Google reviews

Recent Reviews:

Emilio Heredia★★★★★2 years ago

It was a pleasure working with Richard and his crew. They worked diligently and got the job done on time. I would highly recommend Coast.

Dennis Mangan★★★★★9 months ago

On time, knowledgeable and friendly. Clean installation of attic insulation. Would recommend them.

Mimi McMahon★★★★★a year ago

Transparent and fair pricing. Easy to schedule and prompt! Randy & Kerry (sp?) were fantastic and took pride and care in their work and it really showed. They were efficient, clean, kind, and overall really a pleasure! Strongly recommend!!

4⭐
6 Google reviews

Recent Reviews:

Morgan Miller★★★★★6 years ago

valeria baldovino★★★★★5 years ago

We asked for the job to be done in june. I called last week to see if we could do it sooner and we were able to have it done yesterday. They were in and out in 4 hours. Covered everything. Cleaned up. The owner was here working with a crew of 2. They started in the master bedroom and compared to the day before when it was hot in the afternoon we could already feel a big difference. We cannot wait for winter to see the difference and i can finally put my furniture along the exterior walls

Florian Basmajian★★★★★4 years ago

Great to work work with, completed the job quicker than expected.

Recent Reviews:

Jennifer O'Hagan★★★★★9 months ago

I have had ALCAL replace my garage doors and clean and replace my attic insulation. Rich and Tim came out to provide estimates for both projects and were very professional, and answered all of my questions. Their crews were on time, very polite, clean, and did great work. One of the insulated garage door panels was cracked and they coordinated with the manufacture to get it replaced. I also was extremely pleased with how well they cleaned out the attic in preparation for the new insulation-thanks Rafael, Dillon, and the rest of the team!

Jadd E★★★★★3 years ago

The installation gays are always good

YORO SIDIBE★★★★★5 years ago

Direct: (707) 889-2874

Frequently Asked Questions — Spray Foam Insulation in Santa Rosa

These are the questions Santa Rosa homeowners ask most about spray foam cost, R-value, and open- vs. closed-cell foam — with context for local pricing and roughly 27% typical energy savings. Compare the 8 verified Santa Rosa contractors above for exact quotes.

Does spray foam insulation work well in hot dry climates like Santa Rosa?▼
Yes — spray foam is highly effective in hot dry climates like Santa Rosa, CA. While moisture control is less of a concern than in humid climates, the air sealing properties are critical for keeping hot desert air out and cooled air in. In extreme heat climates, an unsealed attic can reach 150°F+, dramatically increasing AC load. Spray foam in the attic can reduce attic temperatures by 30–40°F.
What is the best area of my home to insulate in Santa Rosa?▼
In hot dry climates like Santa Rosa, CA, the attic is typically the highest-impact area to spray foam insulate. Desert sun heats roofs to extreme temperatures, and an uninsulated attic transfers that heat directly into your living space. After the attic, crawl spaces and rim joists are the next highest-impact areas. A local contractor can perform an energy audit to identify where your home loses the most conditioned air.
Is spray foam insulation worth the cost?▼
For most homeowners, yes. Spray foam creates an air-tight seal that traditional insulation cannot match, reducing energy bills by 15–35% annually. It also adds structural rigidity, acts as a moisture and vapor barrier, reduces outside noise, and can increase home resale value. The higher upfront cost compared to fiberglass is typically recovered within 3–7 years. One important note: because spray foam creates a very tight building envelope, proper mechanical ventilation is important to maintain healthy indoor air quality and prevent interior moisture buildup. This is typically handled by an Energy Recovery Ventilator (ERV) — a system that brings fresh outside air in while pushing stale air out, recovering the energy from the outgoing air so you don't waste what you paid to heat or cool — or a Heat Recovery Ventilator (HRV), which works similarly but is optimized for cold climates. A qualified contractor will assess whether your home needs ventilation upgrades as part of the installation.
How much does spray foam insulation cost in Santa Rosa, CA?▼
In Santa Rosa, CA and the surrounding area, spray foam insulation typically costs $1.00–$3.00 per square foot installed, depending on the type and your home's specifics. Open-cell foam runs $0.44–$0.65 per board foot, while closed-cell foam costs $1.00–$2.00 per board foot. A typical 2,000 sq ft home attic in Santa Rosa costs $2,000–$6,000. Most Santa Rosa homeowners recoup this investment within 3–7 years through energy savings of 15–35% annually.
What is the difference between open-cell and closed-cell spray foam?▼
Open-cell spray foam is softer, less dense, and less expensive. It expands significantly and is ideal for interior walls, attics, and soundproofing. Closed-cell spray foam is denser, stronger, and provides a moisture barrier — making it better for exterior applications, crawl spaces, and areas prone to flooding or humidity. Closed-cell also has a higher R-value per inch (R-6 to R-7 vs R-3.5 to R-4 for open-cell). One key difference: open-cell foam allows some vapor movement, while closed-cell acts as a vapor barrier — an important consideration for your home's ventilation needs.
How long does spray foam insulation last?▼
Spray foam insulation is one of the most durable insulation options available, with a lifespan of 80+ years when properly installed. Unlike fiberglass batting which can sag and settle over time, spray foam maintains its shape and insulating properties indefinitely. It will typically outlast the building it is installed in.
How do I find a qualified spray foam insulation contractor in Santa Rosa, CA?▼
When searching for a spray foam contractor in Santa Rosa, CA, look for ones who are licensed, insured, and have verifiable reviews. Spray foam requires specialized equipment and training — improper installation can cause off-gassing, adhesion failure, or fire hazards. Ask for references, verify their insurance, and get at least 2–3 quotes. A qualified Santa Rosa contractor will also assess your home's ventilation needs — a tightly sealed spray foam installation requires adequate mechanical ventilation to prevent moisture and indoor air quality issues. FoamMatch pre-screens all listed contractors in Santa Rosa for licensing and insurance so you can compare verified professionals in your area.
How long does spray foam installation take?▼
Most residential spray foam jobs take 1–2 days depending on the size of the area. A standard attic takes 4–8 hours. After spraying, the foam cures within 24 hours, though most contractors recommend waiting 24–72 hours before occupying the space due to off-gassing during the curing process.
Does spray foam insulation need to be replaced?▼
No — spray foam insulation does not need to be replaced under normal circumstances. Unlike fiberglass insulation which degrades over time, spray foam maintains its R-value and air sealing properties for the life of the building. The only reasons to remove or replace spray foam are water damage, renovation work, or improper original installation.