4.7 
215 *The Angi rating for Drywall Insulation companies in Los Altos, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Drywall Insulation needs.
*The HomeAdvisor rating for Drywall Insulation companies in Los Altos, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Drywall Insulation needs.
Last update on November 29, 2025
Serving Los Altos, CA and surrounding areas
Approved
In business since 1988
Free estimates
Warranties offered
"The guy checked my house, told us our insulation is good enough and we don't really need to do anything. Thanks for the honesty. I will definitely recommend this guy to my friends."
Serving Los Altos, CA and surrounding areas
Approved
In business since 2013
Free estimates
Warranties offered
"They fit into my Roofing schedule perfectly as I had my roof off and needed some insulation at a certain time."
Serving Los Altos, CA and surrounding areas
Approved
In business since 1988
Free estimates
Warranties offered
"Had a great experience hiring Bay Valley Insulation. The quote arrived very efficiently and was the price I was looking for. The crew of Tony and Henry arrived inside the scheduled window and work was completed in a timely manner that day. The job looked great in the blown attic and final clean-up was great. Thank you."
Serving Los Altos, CA and surrounding areas
Approved
In business since 2017
Free estimates
Offers commercial services
"Working with Vortex was a great experience. The crew was totally professional and very experienced and did an excellent job spraying closed cell insulation in the new addition to our house. When they were done the job site was left totally spotless. Their prices are very reasonable/competitive. We are very pleased with the work they did and how easy it was to work with them. We will certainly use them again in the future."
Serving Los Altos, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2012
Free estimates
Small jobs welcome
"Melesio and his team did an excellent job removing old insulation/cleaning, rodent proofing/sealing, and installing new insulation all in one day."
+3137
Serving Los Altos, CA and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"Installed insulation and best barrier of aluminum. Prompt and thorough! with good communication"
+103
Serving Los Altos, CA and surrounding areas
Approved
In business since 2008
Free estimates
Warranties offered
"Attic is all clean and insulated now! The team was great!"
+26
Serving Los Altos, CA and surrounding areas
Approved
In business since 1999
Free estimates
Warranties offered
"They got the job done in one day, very careful personal. New insulation is working great. We are now waiting for the details on the rebate. Price was also good and affordable"
+77
Serving Los Altos, 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."
+52
Serving Los Altos, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2022
Free estimates
Emergency services offered
Air Sharks delivers expert HVAC services to homeowners across the South Bay, including installation, repair, and maintenance of top brands like Daikin and Lennox. We also specialize in improving indoor air quality with professional ductwork inspection and cleaning.\n\nOwner Khaled Alsaka built Air Sharks on a passion for transforming the HVAC experience through education, collaboration, and top-tier products. We provide personalized consultations and tailored heating and cooling solutions, taking pride in our craftsmanship, attention to detail, and commitment to five-star service.
+22
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