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What our customers are saying

Tempest insulation with Fernando are going to be my go to team for any future insulation needs. I used tempest for a R44 blown in insulation. Fernando was on time for the estimate, sent me a follow up with responses to all my questions and began the work at 8 am on the dot! He and his crew were timely, professional, clean and were in and out of my place in less than a day and cleaned up everything after themselves. I would highly recommend them!

Ali B. in San Ramon


Tempest Insulation, Inc. is the most professional and customer service oriented company I ve hired in years. Their crew is timely, super clean and detailed. If you are looking to remove and replace your attic insulation Tempest Insulation, Inc. is the best! No worries or hassles just a great company providing you excellent product and customer service. 


D A. in San Ramon


The Tempest Insulation's crew that worked in my project managed by Fernando arrived right on time and worked diligently throughout the day until finished. They had all the necessary tools, and materials. When they finished, they cleaned up everything and showed me the finished project and photos. I would highly recommend this crew. Thank you!


Hilda O. in Oakland Ca.


 Not a firm that takes advantage of your ignorance and creates fear... doesn't sell what you don't need!

Gary W. Union City Ca



Reliable and did a good job.

Nancy B. walnut creek


For more Reviews check our Angies page


Paula W. Brentwood Ca.

Fernando was fantastic to work with! He did a great job and cleaned up the entire site after he was done. We already recommended him to a friend who hired him. 7/12/23

James D. Berkely Ca.

Fernando did a great job with the insulation at a reasonable rate. He was very polite, communicated the options well, and his team were efficient and got the job done quickly. 
6/08/23

Sarah B. San Jose Ca.

so appreciated his focus on making the place more energy efficient! My insulation was so old and no longer served its purpose. My heater was running constantly and I could not keep any cool air in during the summer. Fernando was very professional. He helped me understand what my options were and gave a solid recommendation throughout the process. I am so happy with his work and will absolutely keep his information handy in case I need work done in the future. I would highly recommend him!
2/4/23
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