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    Efficiency Revolution

    4.5 (15 reviews)
    Closed 8:00 am - 5:30 pm

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    Services - Efficiency Revolution

    Building energy audit

    Insulation installation

    Insulation removal

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    3 years ago

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    5 years ago

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    4 years ago

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    5 years ago

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    Photo of Dan K.
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    3 years ago

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    Photo of Mark R.

    Mark R.

    Thanks, Dan. I'm glad we made a difference!

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    7 years ago

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    Mark R.

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    9 years ago

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    12 years ago

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    9 years ago

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    8 years ago

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    Mark R.

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    9 years ago

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    Mark R.

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    Review Highlights - Efficiency Revolution

    Mark and his team were incredibly thorough, prompt, and accommodating, plus they handled all the rebate paperwork.

    Mentioned in 14 reviews

    Read more highlights

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    REenergizeCO - Denver Insulation + Solar Company

    REenergizeCO - Denver Insulation + Solar Company

    (20 reviews)

    The initial sales visit was professional, and thorough without wasting time. The visit to add…read morespray insulation into my exterior walls was great. The team ran into some problems that were outside of their control and handled them extremely well. The spray makes a mess but they covered beforehand, and then cleaned up very well afterwards. Re cost, I obtained seven estimates. Only two came in cheaper, and I those estimators did not leave me with a good level of confidence that they would have quality work.

    We purchased a new home in '21 and knew we wanted to do at least three things right off the bat: 1)…read moreinsulate the attic, 2) install solar, and 3) an EV charger. I was pleased to find that REenergizeCO did them all and were more than just an installer but on mission to increase energy efficiency. From start to finish communication was fantastic. They first did the insulation and we noticed a difference almost immediately. They also took care of submitting the Xcel rebate paperwork for it. The solar panels and EVSE came a bit later. Again, they took care of all the paperwork with Xcel. The system has been working without flaw since and saving us tons of money in this inflated energy cost environment. We had them out recently to detach and reset the panels for a roof replacement. They took the opportunity to slightly tweak the layout for better efficiency. Still the same commitment to quality!

    Airtight Energy Inspections - Airtight Energy Inspections performs energy audits throughout Metro Denver

    Airtight Energy Inspections

    (9 reviews)

    First -- even if you don't use Stuart at Airtight, do choose someone who doesn't also do the…read moreimprovements as I have heard stories of hard sales from companies who are using energy audits to get their foot in the door (literally!). Now, adding to the scores of five-star reviews on Airtight Energy Inspections! Stuart came to do the audit this morning and I was so impressed at his knowledge of how to improve the efficiency of our 1926 Wash Park Bungalow. He even talked me out of spending $15k+ on new storm windows, giving me much affordable options that will yield better results. In addition to all of his recommendations, he is getting me a $40 annual credit with xcel at no cost to me. Among other things, he discovered that our bathroom is venting into insulation in our attic (a risk factor for mold) and that our sunlight needs to be sealed. Will be recommending Stuart to my neighbors!

    I was referred to Airtight by someone who'd used them to get a rebate on some windows. We were…read moreabout to replace our windows so I called Airtight to see what I'd need to do. The lady I spoke with, who's name I've forgotten, was extremely helpful. After spending a bit of time asking questions to understand our project and needs, she went told me that she wasn't aware of the any rebates but that she'd look into it and follow up with me. Later than evening she called me and confirmed there were currently no rebates, and concluded that it didn't make any sense for us to have them audit our home. The way she put it was roughly "we don't like to put ourselves in situations where we can't add value". I really appreciate the honestly and extra effort she made.

    Efficiency Revolution - insulationinstallation - Updated May 2026

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