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TRUSTED BY WALNUT CREEK, CA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon153
    Verified insulation services reviews

Find Insulation pros in Walnut Creek

Bay Valley Insulation Inc
4.7(
46
)

Serving Walnut Creek, CA and surrounding areas

Approved

In business since 1988

Free estimates

Warranties offered

"We needed retrofit wall insulation and after checking around all the listings through AngiesList, Yelp, and others, we found that only Bay Valley and SDI does retrofit wall insulation work. We went with Bay Valley because the price was reasonable and they responded quickly and promptly (can't say this about SDI*). Joel was our estimator and he came out promptly at the time and date indicated. He was thorough and thoughtful on how he approached the job, not overselling or recommending things we didn't need. We live in an older house and he appreciated the home and looked for the most non-invasive method to take care of our un-insulated exterior walls. Bay Valley's approach is to come in from the exterior walls with the typical 2-hole process (high/low) to blow in the cellulose insulation. They sent two guys in and despite a couple snags in the job, they finished the job in one full day. Afterwards, they plugged the holes, textured and primed, and the next day came in to paint (our-supplied) paint. I was really amazed how well and seamless it all looked afterwards. They did a good job cleaning and even moved the cabinets in the garage back where they originally were. The real result? The mornings have been a little bit warmer than last week, but so far the heater has barely turned on over the past couple days. The house already feels warmed and less temperature fluctuations. We already got brand-new attic insulation last Fall, but the wall insulation really did the trick. A definite recommend to anyone who needs a good team to do insulation in their home. * dealing with SDI was a nightmare, unfortunately. With *several* calls about being in the ER, then lots of other excuses, it just didn't seem like they wanted to do the job or something. I originally made the request in August and this morning on Nov 10, I got a phone call inquiring if we still needed insulation done. sigh."
Additional Photos
6 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Attic kings
Attic kings
5.0(
10
)

Serving Walnut Creek, CA and surrounding areas

Approved

Free estimates

Warranties offered

Customers say: True professional

"Moshe and his team at Attic Kings are amazing! When I contacted them, they got back to me almost immediately with a date and time for an estimate to install insulation. Moshe was very communicative, texting and calling to let me know when he would arrive. On installation day, Moshe made sure to keep everything as clean as possible, and everything went incredibly well. They are all so kind--would definitely hire again!"
Additional Photos
Response time2 days
Response rate85%
3 neighbors recently requested a quote
Avatar for Attic Pros
Attic Pros
4.7(
101
)

Serving Walnut Creek, CA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Wais and his team did a terrific job removing old, shoddy, blown insulation in our attic, added new batt insulation, rat proofed it, reapplied insulation around the duct work, added a new attic fan, all in record time. Very pleased with how careful they were setting up and removing every bit of waste."
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 rate97%
21 neighbors recently requested a quote
Avatar for American Attics
American Attics
5.0(
8
)

Serving Walnut Creek, 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."
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+52

Response time2 days
6 neighbors recently requested a quote
Recommended by37%of homeowners
Avatar for Insulation Alliance
Insulation Alliance
5.0(
2
)

Serving Walnut Creek, CA and surrounding areas

Approved

In business since 2017

Free estimates

Warranties offered

"When Insulation Alliance came, they were very professional. They laid down plastic everywhere in the hallway and the bedroom. They cleaned out the whole attic. They took out the old insulation and put in the new Insulation which was R 44. They cleaned up everything and everything was clean when they left. They also sanitized the attic. You will not be disappointed that you hired."
Attic Cleaning
Attic, Crawl Space and Basement Decontamination
ATTIC, WALL, CRAWL SPACE INSULATION
THERMAL INSPECTION
REMOVING INSULATION

+86

16 neighbors recently requested a quote
Recommended by50%of homeowners
Avatar for Attic Masters insulation Services
Attic Masters insulation Services
4.8(
111
)

Serving Walnut Creek, CA and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"i can only say good things about working with Attic masters. Great communication, They came on time, protected our floors and hallway from insulation dust, took pictures of the before and after for us so we can get the rebate. overall, very easy and stress free company to work with. I would definitely use again, it was a pleasure to work with true professionals."
HVAC Duct Replacement
Insulation Installation & Attic Cleaning
Air Sealing & Rodent Proofing
New Construction
Vapor Barrier Install

+204

Recommended by94%of homeowners
Avatar for Attic Masters
Attic Masters
4.7(
33
)

Serving Walnut Creek, CA and surrounding areas

In business since 2010

Free estimates

Credit card accepted

"We had a problem where rats used to get in the attic via the air spaces. This big problem caused an infestation that required us to solve this problem and to replace the insulation.
Adam from Attic master,  was very nice to us and understood the problem very well. He sent to our house one his main guys to check and see how he can help us solving this problem. As part of his great service, he was also able to close all the openings on top of the new insulation. 
I'm very happy that 1 company could solve this problem once and for all.
"
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+7

Recommended by95%of homeowners
Avatar for Attic Efficiency
Attic Efficiency
5.0(
6
)

Serving Walnut Creek, CA and surrounding areas

Free estimates

Emergency services offered

Credit card accepted

"Our home was very hot this summer and the power for the HVAC wasn’t really good , Attic efficiency added for us more insulation in the attic and the walls , we feel the change now , They was great , highly recommended"
Insulation Project - moisture barrier
Moisture barrier
Insulation Project
Moisture barrier
R19 batts crawl space insulation installation

+13

Recommended by100%of homeowners
Showing 1-10 of 45
Insulation questions, answered by experts

In Walnut Creek, insulation service should be prioritized if you notice drafty rooms, persistent moisture, or pest activity, as these can worsen quickly in the area’s variable climate. If you’re only looking to improve energy efficiency by increasing R-values or updating materials, these upgrades can typically wait until spring or fall, when weather conditions are ideal for installation and less disruptive to your home.

Helpful?

Walnut Creek homeowners can choose from several contractor types: full-service insulation contractors for comprehensive projects, energy efficiency specialists for whole-home assessments, HVAC professionals for duct insulation, general contractors for remodels that include insulation, and niche experts for spray foam or radiant barriers. Selecting the right contractor depends on your project’s scope, the insulation material needed, and your home’s unique climate challenges.

Helpful?

For a seamless insulation project in Walnut Creek, start with a home energy audit to identify specific problem areas. Confirm your plans align with California’s energy efficiency standards and obtain any required permits. Gather multiple quotes, verify contractor licenses, and ask about local rebate programs. Schedule work during mild weather, clear access to attics or crawl spaces, and coordinate with any other home improvements to minimize disruption.

Helpful?

In Walnut Creek, keep a digital thermometer, moisture meter, and flashlight for routine insulation checks. Stock up on weatherstripping, caulk, and spray foam for sealing minor leaks, and have protective gear like gloves and masks ready for safe handling. Store extra insulation material and vapor barriers in a dry, elevated area to prevent moisture damage, and keep a simple log of your maintenance activities for future reference.

Helpful?

In Walnut Creek, you can address small insulation issues by sealing minor gaps around windows and doors with weatherstripping or caulk, and by topping off attic insulation in easy-to-reach areas. Always wear gloves, a mask, and goggles, as older homes may have insulation containing asbestos. Avoid disturbing insulation near electrical wiring or in crawl spaces, as these areas often require professional assessment due to local building codes.

Helpful?

The Walnut Creek, CA homeowners’ guide to insulation services

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