Spray Foam Insulation in Modesto, CA

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

Compare 8 verified spray foam insulation contractors serving Modesto, California, backed by 200 customer reviews averaging 4.8★. Whether you're insulating a new build, retrofitting an existing home, or upgrading attic and crawl-space insulation, these pre-screened Modesto 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 Modesto

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 Modesto

5⭐
83 Google reviews

Recent Reviews:

Barry Schmidt★★★★★5 months ago

We hired CA Attic Solutions to install new ductwork in our duplex. We met with Kamal and he was very professional and informative when he came out to the property. He gave us a great price and scheduled us in for the project. It took 2 days to complete and the results were awesome. The install team was headed by Manuel and they were very professional and did a great job. I would definitely hire them again in the future. These guys definitely know what they’re doing!

mudaser khan★★★★★a month ago

Kamal and his team at CA Attic Solutions did an awesome job in my attic! They handled insulation removal, rodent proofing, sanitation, air sealing, and installed new R38 insulation. The crew was super friendly, worked fast, and kept everything clean. My attic looks great now and the house already feels warmer and quieter. Definitely recommend these guys

Inderpreet Dhillon★★★★★2 months ago

Kamal and his crew did an excellent job with our whole-house fan installation. They were professional, punctual, and kept us informed throughout the process. Communication was clear and timely, which made the entire project smooth and stress-free. The team was respectful of our home, cleaned up thoroughly each day, and paid great attention to detail in their work. Everything was completed on schedule, and the results are outstanding. We are very happy with the quality of the installation and the overall experience. I would highly recommend Kamal and his team to anyone looking for reliable, skilled, and trustworthy professionals.

5⭐
14 Google reviews

Recent Reviews:

Janice Rose★★★★★a month ago

Straight Edge Insulation of Modesto's website is user-friendly and informative, highlighting their insulation services like blown-in, batt, removal, spray foam, and attic fan installation for energy-efficient homes. Professional, affordable, and reliable—highly recommended!

Rebecca Wiechec★★★★★a month ago

I recommend Straight Edge Insulation Of Modesto to all of my family and friends the job was done very professionally with the best care and treatment from the staff as well for sure 10 out of 10!!

leia dragon★★★★★a month ago

Straight Edge Insulation of Modesto offers top-quality spray foam insulation services, improving energy efficiency, comfort, and savings. Trust their experts for reliable insulation solutions tailored to homes and businesses alike.

Recent Reviews:

Danielle Fuller★★★★★3 years ago

Their work is amazing and I highly recommend them. They did an amazing job and everything looks as good as new! Their quality is top-notch.

Youe Rosevent★★★★★a year ago

They did the job enthusiastically and displayed high levels of professionalism too. An amazing team that provides top-notch service. I highly recommend your services. I used them in the past and found them to be excellent. Thankful for your top class work Progressive Santa Clarita Insulation Contractor!

4.8⭐
41 Google reviews

Recent Reviews:

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.

Varun Nagaraja★★★★★3 years ago

I had a great experience working with Johnson's insulation. They cleaned out our dusty attic, sealed all the air gaps, covered up areas to prevent pests and finally install the insulation. They were also very clean while working by covering up the walls and hallway .

4.8⭐
18 Google reviews

Recent Reviews:

Hailey Milasich★★★★★3 months ago

Exceptional experience with Universal Coatings! From start to finish, the crew was punctual, knowledgeable, and incredibly thorough. Their expertise in roofing, waterproofing, and floor coatings really showed throughout the entire project. Communication was clear and consistent, and the whole process was handled with professionalism and care. The final results are outstanding and durable, clean, and built to last. I wouldn’t hesitate to recommend Universal Coatings to anyone in need of high-quality, dependable service. Great job to the entire team!

Tabitha Holt★★★★★5 months ago

Universal Coatings went above and beyond! The team was professional, detail-focused, and clearly experts in roofing, waterproofing, and floor coating. From day one, they made the entire process easy and stress-free. The results speak for themselves—clean, durable, and top-quality work. I would highly recommend them to anyone looking for reliable service and long-lasting solutions. Huge thanks to the Universal Coatings team!

Jiselle C.★★★★★5 months ago

Universal Coatings truly impressed me with their outstanding service and attention to detail. From the first phone call to the final walkthrough, their team was professional, knowledgeable, and genuinely easy to work with. They took time to explain every step of the process, which made a big difference. You can tell they take pride in being protective coating experts. The results completely transformed our space and the quality of their residential and commercial coating work was top-notch. If you’re looking for a professional coatings service that’s reliable and delivers on their promises, they’re the best in Fresno!

3.9⭐
42 Google reviews

Recent Reviews:

Flavio Gallo★★★★★4 months ago

I’m writing this review while the Gold Star crew is finishing up one of my projects. This is as good of an outfit as you’ll find in construction. The office staff was super responsive - Jesse came out to visit the job site twice and addressed every concern and helped make the right insulation decisions when the project underwent a major siding upgrade. The crew of installers were polite and friendly; they fulfilled every request and were meticulous with their work. I also need to mention that the job site was left as clean as they found it. I am happy to have found an insulation pro that I can go back to on future projects. Five Gold Stars all the way.

DR K★★★★★a year ago

Two excellent teams to complete the attic insulation. Julio, Arbeno,and Wilzon took out the old insulation. And Neptali and Isidro blown in the fiberglass insulation. Neptali is very helpful, meticulous and knowledgeable in making sure everything is properly sealed for the installation. Thank you for a job well done by both teams.

Alexandria Shankweiler★★★★★a year ago

Excellent service from the 1st phone call. They were right on time, professional and extremely polite. They cleaned up everything when they were done, and the best part is that I could tell a difference in the temperature in my house immediately!! I work remotely and normally my heater turns on and off all day but today my house has stayed at a steady temp and my heater has not come on for hours. On top of all that they had the best price in town.

Frequently Asked Questions — Spray Foam Insulation in Modesto

These are the questions Modesto 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 Modesto contractors above for exact quotes.

Does spray foam insulation work well in hot dry climates like Modesto?▼
Yes — spray foam is highly effective in hot dry climates like Modesto, 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 Modesto?▼
In hot dry climates like Modesto, 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 Modesto, CA?▼
In Modesto, 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 Modesto costs $2,000–$6,000. Most Modesto 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 Modesto, CA?▼
When searching for a spray foam contractor in Modesto, 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 Modesto 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 Modesto 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.