• 600 S. Vincent Ave. Azusa, CA 91702
Proudly Serving All of California (800) 707-9278

Customer Reviews & Testimonials of Our Services


5/5 based on 65 ratings and reviews for HomeAndConstructionBusiness.


  • "We’ve lived in our home for 23 years and could never figure out why 2 rooms upstairs had a mass difference on temperature compared to the rest of the house. My husband has worked with Griff from OJ and gave him a call. Dave came out and took a look and offered to add insulation to help out. Lo and behold, a week later, we’ve noticed a massive difference on our house being able to keep the heat in. We’ve rarely had to put the heater on for that side of the house!! Dave and John sent their team and they did such an excellent job!! I didn’t have to clean up after them , in fact, I even questioned if they showed up!! Fast, efficient and definitely cost effective!! We are so appreciative of Griff, Dave, John and the rest of the OJ team!! Thank you so much!!"
    Customer: Mary
    Date: 02/04/2024

  • "Good job OJ!"
    Customer: Home Lab
    Date: 09/06/2022

  • "Great selection of fireplace options. Installation was fast and professional."
    Customer: Scott Sassa
    Date: 09/06/2022

  • "From a old warehouse 10,000 sq ft into a new warehouse. That's what happened once the top quality insulation and white foil was installed. O J Insulation showed up on time and did not stop until completion. They did everything they said they would when agreement was signed. I would highly recommend O J Insulation and their field manager. Very impressive work!!! J. Smith CEO"
    Customer: All In One Poster Co Inc
    Date: 05/05/2022

  • "You all were awesome. Will definitely be using you for our insulation needs in the future."
    Customer: Santa Inez Properties, LLC
    Date: 03/04/2022

  • "OJ Insulation is by far the best company I have used to do insulation for new homes and remodels. They are very knowledgeable and do professional work. Never a problem. I highly recommend them!"
    Customer: Ogilvy Construction
    Date: 02/04/2022

  • "Excellent service and super professional! great pricing and they showed up on time and did excellent work. Could not have been happier and I would definitely recommend!"
    Customer: Chris Baisa
    Date: 02/03/2022

  • "Great and professional, detail-oriented crew."
    Customer: Charlie Phillips
    Date: 11/24/2021

  • "Timely, efficient, helpful, reasonably prices, nice installers!"
    Customer: Brittany Sudlow
    Date: 11/04/2021

  • "OJ Installation did excellent work install my new gutters. They also saved me by first inspecting the roof tiles and discovering several broken roof tiles. My builder replaced the broken tiles. Thanks OJ for both!"
    Customer: Dan Long
    Date: 10/07/2021

Where should you insulate in your home? Check out our interactive infographic:

Home Insulation

We insulate attics, walls and crawl spaces.

Commercial Insulation

We insulate warehouses, offices, studio spaces & more.

Insulation Removal

Do you need to remove old insulation? We can help.


We work with builders to install fireplaces.

Are You Sure?
You are about to leave OJ Insulation and enter a third-party site. OJ Insulation and Installed Building Products have no control over, and accept no liability, obligation, or responsibility for, the contents or performance of other websites. Any such link does not constitute an endorsement or any representation regarding, the linked website, its content, its owner, its performance, its owner’s products or services, or any forward-looking statements found in.
Leave Page