Spray Foam Insulation in Palo Alto, CA

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

💰 Estimated Energy Savings in Palo Alto

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 Palo Alto

Dura-Foam Roofing & Solar Center

Direct: 6503341188

4.9
8 Google reviews

Recent Reviews:

J Beek★★★★★a week ago

We’ve been thrilled with our decision, 28 years ago, to have Dura-Foam replace our (leaking) gravel roof with foam. It’s been trouble-free ever since. Last year, we arranged for a re-coat and, as we’ve had such good experiences with this company, trusted them to install solar panels as well. We’re happy to report that our re-coat is beautiful and the solar system is up, running, and working great. Kudos to the team for their professionalism, diligence, and for completing the project in a timely manner. Everyone was easy to communicate and work with, and we are very pleased and grateful for everything Dura-Foam has done to improve our home.

David Pino★★★★★2 months ago

I had a foam roof put on my house 27 years ago by Dura-Foam. I just had my second silicone coating put on in that time period. They pressure washed, replaced spouts, did a touch up repair, and then recoated it. I am very happy with Dura-Foam's work throughout the process. I would diffidently recommend them.

Charlie QUickert★★★★★a month ago

We had a great experience with Dura-Foam. From estimate to final instalation they were professional and provided excellent services. No complaints here. I highly recommend Dura-Foam to all.

Attic Bros of Palo Alto

Direct: 6509249042

4.7
6 Google reviews

Recent Reviews:

Kinny Kohli★★★★★2 months ago

Contacted them for Attic insulation. Top notch crew overall. Justine was very helpful and prompt to schedule the appointment, Ori was efficient and thorough to provide the quote and Vic & his crew were punctual, thorough, and friendly in starting & completing the work on time to a high standard. Outstanding operators throughout their team. Keep it up!

Irene Cheng★★★★★a year ago

Jordan and his team did a fantastic and professional job! Top notched service that is second to none! Katherine in the office provided best customer service too!

Soichi Sasao★★★★★a year ago

Everyone I communicated with were very professional. Jordan did a great job throughout the whole process. He is very trustworthy and responsible. I highly recommend them.

American Foam Experts

Direct: 8553626123

1.7
6 Google reviews

Recent Reviews:

St. Andrew Society★★★★★8 months ago

I too had a skylight leak 3 & 1/2 years after my roof was done. They fixed it. For the people who need theirs done just keep calling - they will schedule you. It is like anything these days - just follow up and it will get done. The guys who came out where super respectful and it took all of 5 minutes to have the repair done. The foam keeps our house 15 degrees cooler in the summer and the same with the heat - lots of $ saved there!!

Sarvey Shoes4 years ago

I hired these guys to put 1 1/2 inches of foam over my existing foam roof. I had leaky drains and wanted them to be repaired and sealed properly. I also wanted any areas of blistered foam removed and recoated, and positive drainage from low areas. They promised two coats of sealant (1.5gal/100sq feet per coat) over the foam they were going to apply, and to tape off all the solar mounts I had on the roof. I sent my deposit and didn't receive a call for over a week. I called multiple times and finally received a call back 10 days later. On that day, Friday, they said they wanted to start Saturday morning. They were on site for no more than 4 hours Saturday, presumably power washing. Monday morning I received a message requesting full payment! They said they had worked all day Sunday and completed the job. They were on my roof all day without my knowledge or consent, and how did they get on the roof with the gates locked? I went up onto my roof to see what had been done. After I inspected the job I knew they had not delivered as promised. The drains were not sealed, the foam not applied across the roof, and the sealer paint was already completely dry (which if applied at the proper thickness should have still been wet). When confronted about it, they admitted they had not stuck to what the contract called for! I paid them less than we had contracted for, but still more than they were owed for the job they did do. I hired another contractor, who core sampled the roof. The core samples showed they had not applied 1 1/2 inch of foam anywhere on my roof. The core sample also showed they only put one coat of sealant, not two as promised. We tested the drains and they still leaked. They broke the drainage pipes from my air conditioners. They over sprayed foam onto two of my employees cars which will not come off. They only taped off half of my solar mounts and the ones they taped they did not remove the tape after. The ones not taped had foam all over them, making it a mess to try and use them. I hired another contractor who completed the job and I now have a real leak guarantee. Do not hire these people you will regret it!

Rob Hardya year ago

American Foam Experts re-did my roof in summer of 2021. As part of the roof work, they replaced two double-bubble skylights. One of those skylights has significant cracking throughout the interior bubble (to the point where pieces are falling into the house). In June, they stated they would order a replacement and have it installed before end of October. Today (middle of November) they informed me they've changed their stance to this issue being caused by debris or tree limbs. The interior bubble has significant damage where there is no damage to the exterior bubble, and we have no trees anywhere near the rooftop. I now feel compelled to pursue remediation via CSLB and arbitration. Throughout the entire process I have had to follow up multiple times with no response, had to re-share my contract multiple times (apparently they don't keep records), and generally had a terrible experience. I would not recommend working with AFE if it can at all be avoided.

Frequently Asked Questions — Spray Foam Insulation in Palo Alto

Does spray foam insulation work well in hot dry climates like Palo Alto?
Yes — spray foam is highly effective in hot dry climates like Palo Alto, 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 Palo Alto?
In hot dry climates like Palo Alto, 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?
Spray foam insulation typically costs $1.00–$3.00 per square foot installed, depending on the type and your location. 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 costs $2,000–$6,000. Most 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?
Look for contractors 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 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 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.