Guardian Insulation

4.54 |77 Verified Ratings
Write a Review

Guardian Insulation

4.54 | 77 Verified Ratings
Write a Review


24194 Hollyoak APT G
Aliso Viejo, CA 92656
Your use of our services is governed by our Terms & Conditions

Guardian Insulation

Shielding Your Home and Saving You Money

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.


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Service Area

  • Anaheim
  • Riverside
  • Irvine
  • Santa Ana
  • Orange
  • Fullerton
  • Laguna Beach
  • Newport Beach
  • Garden Grove
  • Huntington Beach
  • San Juan Capistrano
  • Mission Viejo
  • Buena Park
  • Laguna Hills
  • Brea
  • Yorba Linda
  • Lake Forest
  • El Toro
  • Aliso Viejo
  • Fountain Valley
  • San Clemente
  • Laguna Woods
  • Westminster
  • Tustin
  • Costa Mesa
  • La Habra
  • Placentia
  • Trabuco Canyon
  • Dana Point
  • Laguna Niguel
  • Cypress
  • Villa Park
  • Los Alamitos
  • Stanton
  • Rancho Santa Margarita
  • Atwood
  • East Irvine
  • Ladera Ranch
  • Sunset Beach
  • La Palma
  • Corona del Mar
  • Midway City
  • Capistrano Beach
  • Surfside
  • Foothill Ranch
  • Seal Beach
  • Silverado
  • Newport Coast
  • See All >

Services Offered

  • Batt, Rolled or Reflective Insulation Install
  • Blown-in Insulation Install
  • Spray Foam Insulation Install

Areas of Expertise

  • Insulation & Air Sealing
  • Whole House Fans & Attic Ventilation
  • Air Sealing
  • Solar Panels
  • Wall Insulation with Full Restoration

Product Brands Used

  • Green Fiber Cellulose Insulation

Quick Facts

Business Hours
(Please call to confirm)
  • Free Estimates
  • Credit Cards Accepted


In Business Since: 2003
State Licensing
Trade: C-02 Insulation and Acoustical
License #: 981000
Expiration: 02-28-2021
Trade: B-General Building Contractor
License #: 981000
Expiration: 02-28-2021
Green Certifications
  • Building Performance Institute - Building Analyst & Envelope Profesisonal Certifications
Type: General Liability
Amount: $2,000,000
Expiration: 07-23-2019
  • 4.5 Stars & 28 Reviews On Yelp!
  • "A" Rating & 15 Reviews On Angie's List
  • Angie's List Super Service Award 2016
HomeAdvisor Screened. View Details

HomeAdvisor allows Service Professionals to post information about themselves and their business on their profile. HomeAdvisor does not review or verify the information or representations set forth in those profiles, as they are self-reported by the Service Professional.

HomeAdvisor verifies state-level licensing where applicable - note: some states require local or county level licensing and you should verify whether or not your pro is properly licensed.

Business Overview

Community Involvement

Habitat for Humanity


Guardian Insulation

My Work
1 Projects
Save 10% on Any services totalling $1500 or more Save 10%
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Ratings & Reviews
Guardian Insulation

Real feedback from real homeowners.
Learn more about this pro by reading the ratings and reviews below.
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Showing 1-10 of 77
  Page 1 of 8
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4.0   |  
Review by in Dana Point, CA
Be sure to understand how any holes needed for adding insulation will be closed and finished (ie. patched but not painted, etc).
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5.0   |  
high work ethic - l excellent cleanup
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4.0   |  
Review by in Laguna Woods, CA
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5.0   |  
Brian gave a fair and thorough estimate, he scheduled the work immediately and Mark and Yannick did a thorough job, and cleaned up very well afterwards. I am a satisfied customer!
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3.0   |  
The actual installers were great! They came on time, knew what they were doing, were clean, neat and considerate. On the other hand, the sales person was not as interested if the job he was selling could actually be completed as sold. Therefore, a part of the job could not be completed and he attempted and attempted to put the ownous on the client.
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4.5   |  
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5.0   |  
Review by in Lakewood, CA
David is very pleasant, and his customer service is great. Very affordable and detailed.
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5.0   |  
The 2 person crew was awesome. They were very respectful and personable. They came ready to work and did an amazing job. The patchwork on the holes they used to blow the material in was superb. You can't even tell there were puncture holes. All around a painless experience.
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5.0   |  
Review by in Rialto, CA
Guardian Insulation was all you could ask for as a customer - 1) They offered the best quote/estimate out of three 2)They were in constant communication from start to finish 3) They showed up on time and completed the work in a timely manner 4) The quality of work and products were excellent
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4.5   |  
Review by in Pasadena, CA
From the sales rep, to the workers, (family)--strictly professional! Done on time with courtesy & proficiency. Filled my walls and refilled my attic, and the touch up after the holes were plugged-- artists!! My thanks and appreciation! Larry G.
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Showing 1-10 of 77
  Page 1 of 8

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  6. Bankruptcy Search
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    We use 3rd party data sources to check the principal/owner of the business for state level civil legal judgments entered against them.
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  10. Identity Verification (Reverse Phone Lookup)
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