4.6 
45 *The Angi rating for Insulation Service companies in Woodbridge, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.
*The HomeAdvisor rating for Insulation Service companies in Woodbridge, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.
Last update on January 26, 2026
Serving Woodbridge, CA and surrounding areas
Approved
In business since 2003
Free estimates
Emergency services offered
"Very smoothly. On time. Was a good price and people were easy to deal with. They cleaned up after they were done. Would definitely hire them again. Good job all around."
+9
Serving Woodbridge, CA and surrounding areas
Approved
In business since 2016
Free estimates
Warranties offered
"After getting quotes from a few companies, we chose ThermaCore Insulation for our attic insulation replacement and are very happy we did. The crew was hardworking, professional, and paid attention to the details. They removed the old insulation, cleaned everything up, and installed the new insulation efficiently. The house feels more comfortable, especially during the afternoon heat. The entire process was smooth and stress-free. Highly recommend ThermaCore Insulation to anyone looking to improve their home’s comfort and energy efficiency."
+28
Serving Woodbridge, CA and surrounding areas
Approved
In business since 2019
Free estimates
Warranties offered
"Fantastic. Always on time and very friendly. I love knowing my attic is clean, sealed and insulated. I have actually stopped sneezing!!"
+75
Serving Woodbridge, CA and surrounding areas
Approved
In business since 2016
Free estimates
Small jobs welcome
"Great job installing new air conditioning and attic insulation"
+5
Serving Woodbridge, CA and surrounding areas
Approved
In business since 2024
Free estimates
Credit card accepted
"In comparison to other quotes their price was very reasonable for the same service They were very personable and responsive to questions. They arrived on time and were able to complete the job in one day. I would definately recommend them to anyone needing this type service."
Serving Woodbridge, CA and surrounding areas
In business since 2011
Free estimates
Credit card accepted
"Very prompt - completed the job the same day as they were contacted!"
+7
Serving Woodbridge, CA and surrounding areas
In business since 2000
Free estimates
Credit card accepted
"They were professional, efficient, and cleaned up after."
+40
Serving Woodbridge, CA and surrounding areas
In business since 2018
Credit card accepted
Offers commercial services
"Anthony and Dante installed spray foam and fiberglass insulation for me, and I would recommend them."
Serving Woodbridge, CA and surrounding areas
In business since 2000
Free estimates
Emergency services offered
"Went very well and finished before promised time."
+32
Serving Woodbridge, CA and surrounding areas
In business since 1997
Free estimates
Credit card accepted
"Old shake roof was removed, new insulation added, plywood base with roof paper cover. Then tiled over raised battens. New gutters and downspouts. Dry rot repairs and painting of new surfaces.The whole process took four days. The bid and contract were presented very thoroughly, each item of work detailed and priced. Many choices. The work crews were very pleasant. The work was done in a set order and a company rep would call to inform of the next step and when it would happen. At the conclusion of each days work the property was cleaned and as tidy as possible given the nature of the project. When finished, a company rep inspected the job and checked for any needed corrections. All in all, an outstanding contractor to work with."
From average costs to expert advice, get all the answers you need to get your job done.
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