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Guardian Insulation, Inc. logo

Guardian Insulation, Inc.

Batt, Rolled or Reflective Insulation Install or Upgrade, Attic or Whole House Fan Installation, Attic or Whole House Fan Service,

About us

Guardian Insulation is a fully licensed, bonded and insured insulation and acoustical contractor specializing in blown insulation for single family residences. Our managing partners are experts in energy efficiency and thermal resistance combining not only a Bachelor's Degree in Environmental Science from UC Berkeley but over 25 years on site experience with residential home insulation. We have over 100 satisfied customers in the Orange County and Sacramento areas, many of whom would be happy to speak to you and attest to the quality of our work.

Business highlights

22 years of experience

Services we offer

Blown in for attic or wall, Insulation, Soundproofing

Amenities

Free Estimates

Yes

Accepted Payment Methods

  • CreditCard
Reviews
4.756 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
86%
4
11%
3
0%
2
0%
1
4%

Filter reviews by service

Showing 1-25 of 56 reviews
Alice S.
Jan 2025
4.0
Blown In Insulation Install or Upgrade
Yes, I recommend this pro
Russell, the owner was very knowledgeable and kind and the men that put in the insulation or also very professional and kind and looks like they did a good job

Derek P.
Jan 2025
5.0
Home Energy Audit
Yes, I recommend this pro
Russell was great from beginning to end!

Francisco R.
May 2024
4.0
Blown In Insulation Install or Upgrade
Yes, I recommend this pro
No frills service. They're in and out and do what they say they'll do. I'm very happy with the job they did.

Phil B.
Sep 2023
5.0
Blown In Insulation Install or Upgrade
Yes, I recommend this pro
$3,000
Crew took extra care in protecting hallways going to attic access.. Only company that showed they were aware of federal regulations covering blown insulation. Pictures before and after with depth markers validated their work.

Bryce J.
Jul 2023
3.5
Spray Foam Insulation Installation
Yes, I recommend this pro
A bit lacking on the clean up.

Rene P.
Oct 2022
4.0
Blown In Insulation Install or Upgrade
Yes, I recommend this pro
$2,400
Most reasonable price and willing to work with my requirements.

Red F.
Sep 2022
5.0
Blown In Insulation Install or Upgrade
Yes, I recommend this pro
Worked around my schedule and very professional

David L.
Aug 2022
4.0
Batt, Rolled or Reflective Insulation Install or Upgrade
Yes, I recommend this pro
I went with guardian because they had the best price and the owner was nice and professional. However when it came to the actual work being done, it was outsourced to another company. They were good, but not what I was expecting or was communicated.
Response from Guardian Insulation, Inc.
"what was communicated / expected that didnt come true?"

Carl W.
Jun 2022
4.5
Blown In Insulation Install or Upgrade
Yes, I recommend this pro
The company’s service representative was awesome and gave be the best price compared to the other companies.

Alejandro E.
Mar 2022
5.0
Spray Foam Insulation Installation
Yes, I recommend this pro
I spoke with Russell and gave me a free quote...and also the best price...I'm happy with there Work...in fact I'm going to hire then again for my attic!

Candy E.
Feb 2022
5.0
Blown In Insulation Install or Upgrade
Yes, I recommend this pro
$7,000
Russel was very professional and efficient. The team arrived on time and completed the work in 2 days - insulation, duct replacement and rodent proofing. They were careful to make as little dust as possible and cleared up at the end. Very competitive pricing. I had 3 estimates and Guardian was the best.

Kim R.
Feb 2022
5.0
Blown In Insulation Install or Upgrade
Yes, I recommend this pro
Covered everything up really well. Cleaned by nicely after the work was completed. Showed me pictures of all work done

Robert F.
Oct 2021
4.0
Blown In Insulation Install or Upgrade
Yes, I recommend this pro
Fair pricing

Dana P.
Oct 2021
5.0
Blown In Insulation Install or Upgrade
Yes, I recommend this pro
Great insulation team. Prompt, respectful, and family priced.

Joe G.
Aug 2021
5.0
Blown In Insulation Install or Upgrade
Yes, I recommend this pro
$1,700
On time and very professional. Finished in 3 hours and cleaned up afterwards

Jerry C.
Aug 2021
5.0
Spray Foam Insulation Installation
Yes, I recommend this pro
$1,800
These guys were great. Can't tell that anything was done on the outside, it's perfect

Isabel H.
Jul 2021
5.0
Batt, Rolled or Reflective Insulation Install or Upgrade
Yes, I recommend this pro
$3,600
The guys did a great job, cleaning up the old insulation and then reinstalling new insulation. They were professional and cleaned up after. I would recommend them.

RUTH S.
Jul 2021
5.0
Blown In Insulation Install or Upgrade
Yes, I recommend this pro
$1,300
Russ was very pleasant, professional and easy to work with. Hector and Jose installed the insulation and left the place clean and tidy.

Hector H.
Jun 2021
5.0
Blown In Insulation Install or Upgrade
Yes, I recommend this pro
$2,000
Great service.

Aaron F.
Jun 2021
5.0
Spray Foam Insulation Installation
Yes, I recommend this pro
$2,228
They were on time, professional, and did the insulation work for the quoted price. Russel, Mark, and Crew were fantastic. You can not see the holes at all, it is amazing!

Dwight W.
May 2021
5.0
Spray Foam Insulation Installation
Yes, I recommend this pro
$1,400
They provided solid and reliable service and excellent communication.

Brad P.
Apr 2021
5.0
Blown In Insulation Install or Upgrade
Yes, I recommend this pro
.

Kyle G.
Mar 2021
5.0
Blown In Insulation Install or Upgrade
Yes, I recommend this pro
They were ontime, professional, and did the contracted work for the quoted price. There was a slight hiccup at the job start, but they were great at communication and resolved it quickly. Basically I had a slight misunderstanding of where a vent would be placed. This company is what you look for in a contractor. I would absolutely use them again.

Steve G.
Mar 2021
5.0
Home Energy Audit
Yes, I recommend this pro
We were considering spending over $50,000 on 7 new double French doors. Following Russellâ s survey we found we did not need to do so to help solve our HVAC issues. We now have his 17 page report including guidance regarding HVAC equipment, changing ductwork, solar equipment, insulation and recommended companies to call to get quotes as needed. We found his energy survey worth every penny.

Donna R.
Mar 2021
5.0
Batt, Rolled or Reflective Insulation Install or Upgrade
Yes, I recommend this pro
They removed blown in insulation cleaned up rat feces sanitized attic then reinstalled insulation. They arrived on time did an excellent job and cleaned up.
Showing 1-25 of 56

Licensing

State Contractor License Requirements

All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our Find Licensing Requirements page.

*Contact business to see additional licenses.

FAQ

Guardian Insulation, Inc. is currently rated 4.7 overall out of 5.

Guardian Insulation, Inc. accepts the following forms of payment: CreditCard

Yes, Guardian Insulation, Inc. offers free project estimates.

No, Guardian Insulation, Inc. does not offer eco-friendly accreditations.

No, Guardian Insulation, Inc. does not offer a senior discount.

No, Guardian Insulation, Inc. does not offer emergency services.

No, Guardian Insulation, Inc. does not offer warranties.