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Find Spray foam insulation pros in Brentwood

Avatar for ThermaCore Insulation Inc.
ThermaCore Insulation Inc.
5.0(
20
)

Serving Brentwood, CA and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"We hired ThermaCore Insulation to remove our old attic insulation, air seal the attic, and install new insulation. Kamal and his crew were professional, honest, and easy to work with from start to finish. During the inspection, they found several air leaks and duct issues that other companies completely missed. They explained everything clearly, completed the work on time, and left the area clean. We noticed a big improvement in comfort right away. Great service, fair pricing, and quality workmanship. Highly recommend ThermaCore Insulation!"
ThermaCore Insulation
applying 2-inches closed- cell spray foam
shipping container
project preparation
first code completion

+28

20 neighbors recently requested a quote
Avatar for Attic Pros
Attic Pros
4.7(
101
)

Serving Brentwood, CA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"We realized over the weekend that we had a serious problem that needed to be addressed immediately after hearing some tapping/biting sounds around a ceiling speaker in the master bedroom during the weekend of January 20. I found the Attic Pros ad on Sunday night and called to schedule an inspection appointment on Monday, 1/22, and was able get one for 11am - 1pm on Tuesday, 1/23. Asad (Asaullah) called at 11:10am and left me a voicemail saying that he would be to my house in ~25 minutes. He arrived at ~11:30am ready and prepared to do the inspection after asking some questions and I showed him the access doors to the roof and side attic spaces that needed to be looked at. He completed the inspections, showed me some pictures of what he had found, and let me know what options we had to address the rodent problem. One was the lower cost option which included cleaning up the droppings, setting traps, cleaning up as much as possible, but would have us keeping the existing blown foam insulation and trying to find as many potential entry points as possible to patch up. I decided on the second, higher priced option, which removed all of the original blown foam, a thorough clean up and disinfecting of the areas, wire mesh blocking of all potential entry points, traps to catch any remaining live rodents, and installation of new rolled fiberglass insulation. We set up the the two appointment dates for Thursday, 1/25, and Monday, 2/5. The teams arrived on time both days, put down floor covering from the front door to the attic entry closet and isolating plastic sheets in the master bedroom going out to the second floor deck. They ran the big suction hose off the deck, and were able to keep the front door closed as much as possible, as I had asked them because of the current neighborhood rodent problem caused by the new housing development construction going on down the hill from my house. The teams worked both of the two originally scheduled days and got the jobs completed between 4:30pm and 6pm, so that it was not necessary to come back the next day to finish. I paid half of the original cost estimate following both days of work as agreed. Overall, the entire process was great, beginning from the easy and quick scheduling of the initial inspection by Asad, and getting work started two days later. Everyone was very professional, and I believe did a great job. I would definitely recommend Attic Pros to all of my neighbors that I am sure are experiencing similar problems."
Fortify your home’s attic with high-quality insulation and strategic rodent-proofing.
Lock in warmth and lock out pests with expert attic insulation and rodent-proofing.
Transform your attic into a pristine, energy-efficient area with our insulation and sanitation services.
Maximize your attic’s efficiency and hygiene with expert insulation installation and sanitation services.
Create a healthier living space with expert attic insulation installation and deep sanitation.

+3895

Response time9 hrs
Response rate100%
14 neighbors recently requested a quote
Avatar for Attic Experts, Inc.
Attic Experts, Inc.
4.7(
45
)

Serving Brentwood, CA and surrounding areas

Approved

In business since 2012

Free estimates

Small jobs welcome

"Attic Experts pulled out our old insulation and installed new. Since then, we've certainly noticed a positive difference in how well the house keeps cool in summer and warm in winter."
 Droppings
 Droppings
 Droppings
 Old Insulation
Old Insulation

+13

Response time7 hrs
2 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Attic kings
Attic kings
5.0(
10
)

Serving Brentwood, CA and surrounding areas

Approved

Free estimates

Warranties offered

Customers say: True professional

"Fantastic service, Mosh and employees dedicated to the complete eradication of all rodents. Traps, closing off access areas with steel mesh and sanitizing attic with a spray was worth the money. Most important was Mosh’s follow up 2 weeks later to make sure everything was all right. 10 star rating"
Additional Photos
Response time5 days
Response rate100%
2 neighbors recently requested a quote
Avatar for Insulation Alliance
Insulation Alliance
5.0(
26
)

Serving Brentwood, CA and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Attic Professionals was awesome to work with and highly recommend their business for anyone looking for attic work. We hired his business to replace the insulation in our attic after I took care of a rat issue. We needed all the insulation and droppings removed, cleanse, and replace. Attic Professional crew were diligent with making sure the interior of our home was protected covering the walls and floors to remove the old insulation and did a great job installing the new insulation. Thank you for great service!!!!!!!!"
Soundproofing
Soundproofing
Attic Cleaning
Attic Cleaning
Attic Cleaning

+103

Response time2 days
Response rate93%
18 neighbors recently requested a quote
Avatar for Eagle Shield
Eagle Shield
4.3(
18
)

Serving Brentwood, CA and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"I love this company! Garrett came to my home and assessed how efficient our current insulation, etc was. He was very informative and friendly — explained what we needed and how they could help. At the time, I decided to hold off and he never pushed the sale. When I was ready, he was quick to accommodate my schedule. His team: Angel, Luis, Tommy and TJ were great! They arrived early, were professional, courteous, kind, very helpful with my questions and were above and beyond to help fix things that I wasn’t even aware of. They also were more than happy to help with small problems that I had no idea how to fix. They worked quickly and cleaned up afterwards. You could tell they cared about their work which makes me feel confident that the job was done right. They were also fun to have around — my Great Dane loved them too! Garrett and Dave checked in with me during and afterwards to make sure things were going well and if I had any questions. I highly recommend Eagle Shield."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+9

Response time7 hrs
4 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for Atticare Construction
Atticare Construction
4.5(
172
)

Serving Brentwood, CA and surrounding areas

Approved

In business since 2008

Free estimates

Warranties offered

"We had a rodent infestation in our crawl space and insulation that had been installed upside down, a condition that can cause mold. I chose Atticare because they cleaned up the old insulation and rodent droppings, sealed entry points, sprayed to prevent mold, bacteria and viruses, installed insulation, and were clean. They cost more than other local insulation companies but I didn't have to hire a separate exterminator or worry about mold from the old insulation that was installed wrong. They arrived on time, answered questions and were very easy to work with. I would recommend them."
Before Atticare Services
After Properly Sealing the Access
After Insulation Installation
Clean and ready for Insulation Installation
After Insulation Installation

+26

Response time2 hrs
Response rate91%
2 neighbors recently requested a quote
Avatar for CA Attic Solutions Inc.
CA Attic Solutions Inc.
5.0(
13
)

Serving Brentwood, CA and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

CA Attic Solutions\nAt CA Attic Solutions, we are dedicated to providing top-notch insulation solutions that enhance your home’s comfort, efficiency, and overall quality of life. Founded on the principles of excellence, integrity, and customer satisfaction, we have built a reputation for delivering reliable, high-performance services tailored to meet your unique needs. \n\nWe are committed to offering exceptional service, using the latest technology and highest-quality materials to ensure that your home remains comfortable and efficient throughout the year.\n\nhttps://californiaatticsolutions.com/

ATTIC INSULATION
8 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for American Attics
American Attics
5.0(
8
)

Serving Brentwood, CA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"American Attic was everything they promised. Met with the owner , Sam, within a day to get a quote for removal of old insulation, rodent control and install of new insulation. He was professional and explained everything in detail of what was work was going to be done and how long it would take. We scheduled within a week at a reasonable price. His crew were neat, organized and finished on time! We were notified of some extra things that were found while they were on the job but were not pressured to have those things done. We recommend American Attic to friends or family and would definitely use them again."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+52

Response time2 days
Response rate100%
9 neighbors recently requested a quote
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FAQs for spray foam insulation projects in Brentwood, CA

Old insulation should be removed when it shows damage, contamination, or heavy deterioration. If you notice water stains, rodent droppings, mold, or large gaps, plan on taking it out to protect your home’s energy performance and indoor air quality. Removing compromised material eliminates health hazards, cuts energy loss, and sets the stage for a safer, more efficient attic—all while keeping utility bills in check.

R-value measures how well insulation resists heat flow—the higher the number, the better it slows heat transfer. The right R-value keeps your home warmer in winter and cooler in summer, saving energy year-round. Match the rating to your climate zone and have a pro verify performance over time, because moisture or settling can lower R-value and cut efficiency.

Attic insulation can stay in place for 80 to 100 years, but its performance often drops after the first 15. As dust, moisture, or mold build up, the material loses R-value and allows heat to escape. Schedule periodic inspections so a pro can tell you when replacement makes sense—helping you keep energy bills down and indoor comfort up.

You can over-insulate an attic. Beyond the recommended R-value, extra layers don’t add efficiency and can trap moisture, leading to mold or reduced performance. A local insulation pro can measure current levels, confirm the right target for your climate, and advise on any adjustments so you avoid future energy or maintenance headaches.

Insulation can be damaged by mold, pests, water leaks, or accidental electrical contact. When the material is compromised, it loses R-value and can introduce health hazards. Removing and replacing affected sections restores efficiency, while routine inspections from a qualified pro help you catch problems early and keep your attic safe and energy-smart.