4.7 
334 *The Angi rating for Drywall Insulation companies in Danville, 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 Danville, 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 May 19, 2026
Serving Danville, 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 Danville, 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 Danville, 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 Danville, 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 Danville, 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."
+13
Serving Danville, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2012
Free estimates
Small jobs welcome
"I was looking online for insulation contractors, and found Attic Pros, Chris and his team arrived on time installed brand new attic insulation, cleaned our Crawl space and installed insulation, they took photos before and after. I am very happy with the work was completed defiantly recommend these guys."
+3137
Serving Danville, CA and surrounding areas
Approved
Free estimates
Warranties offered
Customers say: True professional
"Attic Kings is a 5 star business. I had my insulation replaced and my home rodent proofed by them 3 years ago. They came out today just to check something for me at no charge.The customer service was and is outstanding. I highly recommend Attic Kings. They are very nice and kind as well."
Serving Danville, 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!!!!!!!!"
+103
Serving Danville, CA and surrounding areas
Approved
In business since 2008
Free estimates
Warranties offered
"The crew arrived on time and installed plastic on the floor and walls for protection. They did a good job removing the old insulation and installing new insulation. The crew did a great job cleaning up. Nice professional job."
+26
Serving Danville, CA and surrounding areas
Approved
In business since 1975
Free estimates
Warranties offered
"Very organized customer service communication with different contacts and relationship management from estimate to job installation. Also very competitive pricing!! They make suggestions on what areas need insulation and what type of insulation is needed."
+22
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