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20 Years In Business

Company Details

  • Verified Licenses


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Service Details

    Areas of Expertise

    • Insulation & Air Sealing
    • Whole House Fans & Attic Ventilation
    • Air Sealing
    • Solar Panels
    • Wall Insulation with Full Restoration
    View All Offerings and Cities Served

    Cost Information

    • Free Estimates
    • Credit Cards Accepted


    97 Verified Reviews
    • 5
    • 4
    • 3
    • 2
    • 1

    Highly rated for

    • Quality
    Showing 1-10 of 97 results
    5.0 Darshan G. Lake Forest, CA

    I found the home energy audit to be well worth the investment.

    4.5 Richard L. Fullerton, CA

    Great service and very detailed in their work. Have recommended them to a friend of mine.

    5.0 William C. San Clemente, CA

    They gave me what I wanted along with options. No pressure

    5.0 Gavin B. Trabuco Canyon, CA

    They were the only company that would complete the project start to finish, including paint. Very professional, kept us informed along the way of what was going on and did a stellar job of cleaning up as they went along to minimize dust.

    4.5 Eugenie O. Huntington Beach, CA

    I have antenna TV and I think when they are in the Attic they moved my wire from my antenna. I have lost several channels on my TV. I do not have cable so I depend on these channels. Otherwise they did a great job. Thank you

    4.0 Daniel F. La Habra, CA

    There was a little confusion in scheduling because one of the workers got sick. However we quickly rescheduled, and a crew was freed up and they sent them by. Great work, very pleased.

    4.0 Rudy P. Laguna Niguel, CA

    Service provider fine. Value or reason for the test. I cannot to think this is a very good way to spend time or money!!

    5.0 Sherry D. Santa Ana, CA

    Kevin and crew did an excellent job. On time, Fast, clean, professional. Their expertise really shows in the quality of their work. Would highly recommend if you want your job to be done exceedingly well. Highest quality available. I would pick Guardian every time.

    5.0 Debbie H. Mission Viejo, CA


    3.0 Jim G. Lake Forest, CA

    They took out my asbestos on Friday and made us spend the weekend without a/c during a hot spell. When I questioned the decision not to do the asbestos on Monday morning they said it could not get done on time given what else they had to do. But the asbestos got done in about an hour and on Monday they did not work a full day. So it could have been done. The work they did (Radiant Barrier, Attic Exhaust fan, Redo venting system - $6100) helped reduce the heat on the second floor, but the improvement was less than expected. It is better, but not $6100 better. I expected better results. Then one of their workers had a power steering oil leak and it stained my relatively new driveway. I tried to get it off but I failed. They sent the guys back to try but they failed too. It is a series of 3 or 4-inch stains. Not a deadly thing, but still not what you expect. On the positive side: They did do everything on schedule, without incident, and they did keep the place clean. The workers were congenial and not disruptive. Their work has improved things. If you are considering using them, I would exercise more control of what and how they work to get the best result.


    Guardian Home Energy
    Blown Attic Insulation

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