Guardian Insulation

4.55 | 68 Verified Ratings
Write a Review

Guardian Insulation

4.55 | 68 Verified Ratings
Write a Review


24194 Hollyoak #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 area, many of whom would be happy to speak to you and attest to the quality of our work.


Learn how HomeAdvisor screens and approves their pros.

Service Area

  • Sacramento
  • Los Angeles
  • Long Beach
  • Pasadena
  • Van Nuys
  • Riverside
  • Anaheim
  • North Hollywood
  • Glendale
  • San Bernardino
  • Irvine
  • Santa Ana
  • Burbank
  • Inglewood
  • Orange
  • Santa Monica
  • Whittier
  • Torrance
  • Northridge
  • Fullerton
  • Canoga Park
  • Laguna Beach
  • Newport Beach
  • Moreno Valley
  • Garden Grove
  • Lakewood
  • Corona
  • City of Industry
  • Woodland Hills
  • Alhambra
  • Carson
  • Venice
  • Sherman Oaks
  • Huntington Beach
  • Beverly Hills
  • San Fernando
  • El Monte
  • Buena Park
  • Rancho Cucamonga
  • San Juan Capistrano
  • Palm Desert
  • Mission Viejo
  • Compton
  • Ontario
  • Menifee
  • Encino
  • Temecula
  • Fontana
  • Laguna Hills
  • Victorville
  • West Hollywood
  • Arcadia
  • Pico Rivera
  • San Pedro
  • Hemet
  • Perris
  • Culver City
  • Downey
  • Studio City
  • Murrieta
  • Costa Mesa
  • La Quinta
  • Yorba Linda
  • Yucca Valley
  • Brea
  • Monterey Park
  • Playa del Rey
  • Gardena
  • Palm Springs
  • San Gabriel
  • Lake Forest
  • Lake Elsinore
  • Hesperia
  • Artesia
  • Covina
  • Redlands
  • Mission Hills
  • Barstow
  • La Habra
  • Pacoima
  • Tustin
  • Indio
  • Norwalk
  • El Toro
  • Aliso Viejo
  • Upland
  • Montclair
  • Bell Gardens
  • Loma Linda
  • Fountain Valley
  • Blythe
  • San Clemente
  • La Mirada
  • Westminster
  • Tarzana
  • San Jacinto
  • Sun City
  • Valley Village
  • Twentynine Palms
  • Apple Valley
  • See All >

Services Offered

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

Areas of Expertise

  • Insulation
  • Soundproofing

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: 02-28-2019
Type: General Liability
Amount: $0
Expiration: 08-18-2017
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.

Guardian Insulation

My Work
1 Projects
Save 10% on Any services totalling $1500 or more Save 10%
HomeAdvisor: The nation's largest network of screened and rated pros.

Ratings & Reviews
Guardian Insulation

Real feedback from real homeowners.
Learn more about this pro by reading the ratings and reviews below.
Write a Review
Showing 1-10 of 68
  Page 1 of 7
Sort by newest   Date ▼   Rating  
4.0   |  
I was pleased with the quote however I was given a date for the work to be done and it was not done scheduling error so they did it the next date and reduced my rate which was appreciated the work was done.I can tell the difference in my house. But when the work was done I paid cash and was not given a receipt which concerned my so I texted the owner and he emailed me one. Other than that I was really pleased with the service.
Was this review helpful?  
5.0   |  
Very professional and honest. Did a great job of cleaning up and repairing the holes in the walls that was needed to add insulation for me. I have had a great experience! And my homes temp dropped by 7 degrees. AWESOME.
Was this review helpful?  
0.5   |  07-17-2017
I was mislead regarding the rebates from Guardian Insulation. two projects were needed in order to obtain rebate. Each project is separate and this was not required for the rebate from SMUD. Each project is entitled it's own rebate per SMUD. Once deposit was received, communication rated at 0 star. There were 6 no shows where I waited at home with no phone call or text. Company offered several hundred dollar discount if given a positive review online. It makes you wonder if their high star rating is due to this "buying stars". Guardian Insulation became argumentative when I requested my deposit back 3 weeks later. Company will text you at 3 in the morning which also included for me to remove my negative posting online NEWSFLASH I had not posted a review . This put a thought in my mind which led me to write this review...... I highly recommend NOT using this company unless you prefer to sit around and wait.
Was this review helpful?  
4.0   |  
Review by in Torrance, CA
Was this review helpful?  
5.0   |  
Review by in Hemet, CA
Nice people to work with.
Was this review helpful?  
4.67   |  
The initial people that I worked with were great. The installer was a different story but not by fault of his own. Despite the bumps that were ran into, everything went really smoothly. Just keep in mind that installation is messy!
Was this review helpful?  
4.67   |  
Review by in Long Beach, CA
Quick and reasonably priced. A little difficult to pay since it was electronic but other than that I'm pleased with the results.
Was this review helpful?  
5.0   |  
Review by in Riverside, CA
Was this review helpful?  
5.0   |  
Review by in Upland, CA
Guardian Insulation is a class act! Jesse was very professional and sincere when listening to what I wanted to accomplish. He helped me acquire rebates and financing and stood well within my budget to complete the project. Mark was excellent with the install and took the time to answer any questions I had. Clean and efficient so much so that after the project was completed you couldn't even tell they had been there. Glad to see that there are still honest contractors out there! I would gladly recommend this company and will be doing business with them again soon.
Was this review helpful?  
4.0   |  
They were responsive, quick, and best priced of all the companies I contacted. Although they didn't have the equipment required to complete this particular job, they subcontracted with another company, kept the price the same, and did a good job. I would definitely use them again.
Was this review helpful?  
Showing 1-10 of 68
  Page 1 of 7

Seal of Approval

What is the screening process that Service Professionals go through in order to become members of the HomeAdvisor network?

  1. Verify Trade License
    HomeAdvisor checks to see if the business carries the appropriate state-level license.
  2. Verify Insurance
    As a part of our screening process, we encourage professionals to carry general liability insurance. We require coverage for hundreds of services.
  3. Verification of State Business Filings
    For business types that require a Secretary of State filing, we confirm that the business is in good standing in the state in which it is located.
  4. Criminal Records Search
    HomeAdvisor uses 3rd party data sources to conduct a criminal search for any relevant criminal activity associated with the owner/principal of the business.
  5. Sex Offender Search
    We confirm that the owner/principal is not listed on the official state Sex Offender web site in the state in which the owner/principal of the company is located.
  6. Bankruptcy Search
    We use 3rd party data sources to check the history of the principal/owner of the business for bankruptcy filings by or against them.
  7. Legal Search for Civil Judgments
    We use 3rd party data sources to check the principal/owner of the business for state level civil legal judgments entered against them.
  8. Liens Search
    We use 3rd party data sources to check the principal/owner of the business for liens placed against them.
  9. Identity Verification (SSN)
    HomeAdvisor verifies the social security number(s) of the owner/principal for identity check purposes. This check applies primarily to smaller business entities.
  10. Identity Verification (Reverse Phone Lookup)
    We conduct a reverse business phone lookup to identify records matching the phone number information provided by the business.

NOTE: Member service professional information confirmed as described above may change or expire over time; while HomeAdvisor attempts to maintain accurate and up-to-date information, and confirms changes when notified, we cannot guarantee that profile and screening information is accurate. Therefore, we recommend that before working with a service professional you verify that information presented is still current and/or acceptable to you.
Please see HomeAdvisor's Terms and Conditions for a full description of how we screen Service Professionals

**Only for U.S. service professionals

Final Step - Confirm Your Appointment:

Confirm your appointment with on , - Change