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TRUSTED BY MESA, AZ HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon48
    Verified energy efficiency auditing services reviews

Top-Rated Energy efficiency auditors in Mesa - Updated Nov 2026

Avatar for Marshall Insulation
Marshall Insulation
4.1(
47
)
Home Energy Audit

Serving Mesa, AZ and surrounding areas

Approved

In business since 2005

Free estimates

Credit card accepted

"Marshall Insulation was great. They arrived early and worked quickly and efficiently. For a messy job they made sure it was clean when they left. Jeff did a good job explaining the SRP programs,"
Response time2 days
50 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Marshall Insulation
Marshall Insulation
4.5(
155
)
Energy Audit - For BusinessHome Energy Audit

Serving Mesa, AZ and surrounding areas

In business since 1998

Free estimates

Credit card accepted

"I called to set up a free consultation and was promptly met at the agreed upon time. We discussed my desires and how to achieve my project goals. I was given a quote and agreed upon the price for the garage work to be done the following week when I was free. The spray foam and "drill and fill" have been awesome! I have a 24K BTU AC unit in the garage that was unable to keep the temps low as there was so much heat in the garage all day. After the insulation was done it can hold the temps at 70F in the garage while barely turning on during the day. The attic above the garage tops out at 85F when it was over 110F outside, just amazing. We had them do a home energy audit and found that there were plenty of leaky areas in the attic and the insulation was 15 years old and about an R-10 level. It needed some serious work so we agreed to have it topped off with new fiberglass insulation. The guys came out and did and amazing job bringing me up to R-39 as well as keeping the house very clean while doing it. On both days they cleaned up after themselves and took great care of my house. I would wholeheartedly recommend them to anyone that could use more insulation!"
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Recommended by88%of homeowners
Horizon Energy Systems
4.7(
14
)
Energy Audit - For BusinessHome Energy Audit

Serving Mesa, AZ and surrounding areas

In business since 1978

Free estimates

Credit card accepted

"Brad is passionate about energy savings and loves to help customers implement creative solutions. He thinks outside the box and brings valuable advice to the table, sometimes including ones that reduce his own fees.
By carefully considering all the facets of the situation, he helped me select a 2-ton unit to replace my aging, poorly installed 3-ton. Improvements to the ducting, etc. made up the difference. The house is now quieter and cools at least as well as before. The installation is also much more visually appealing than the last one. My new unit should last many trouble-free years, saving money all the while. I didn't check around to see if he was the cheapest, but the price was definitely reasonable.
We also worked together to install a small mini-split heat pump in an addition that no HVAC before. I wanted a unit he wasn't familiar with and had some picky ideas about how it should be installed. He was open-minded about how to make it work and the project was a success. His fees were pretty reasonable on this job, too.
I have at least one other project that I'll be doing with Brad this year. I wish more HVAC contractors were as creative and flexible as he is. This city would be a much cooler place!
"
Recommended by100%of homeowners
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Energy Efficiency Auditing FAQs, answered by experts

Audits include inspecting insulation, HVAC systems, windows, and appliances to identify energy inefficiencies.

Smart home upgrades can be worth the money. Several upgrades, including smart thermostats and ceiling fans, can help reduce your energy bills. Others make life more convenient, freeing up your time to do what you love (or get more work done). And some smart home upgrades, such as entertainment systems, simply make life more enjoyable. All are worthy causes.

You'll likely need more than great home staging to sell your home. Now is a great time to get to work on the curb appeal of your home . Hire local exterior painters and landscapers to coat the exterior of your home and bring it new life with some sprucing up.

Blower door tests are measured in a few different ways, but the most popular are air changes per hour (ACH) and cubic feet of air (CFM) moving through the house per hour. A good ACH score is less than 2ACH, but 1ACH is better. This means the house experiences a total air change within 60 minutes (for 1ACH). For 2ACH, there’s a complete change every 30 minutes, and so on. CFM scores are similar in that a lower score means less air change, and therefore less leakage.

Dryers are designed to use as little electricity as possible, but power is still required to run the motor that turns the drum and to heat an element that pumps hot air. Eco devices are available and may lead to cost savings in the long term, but you should run the figures before committing to an eco-friendly device as they are often much more expensive to purchase.

The Mesa, AZ homeowners’ guide to energy efficiency auditing services

From average costs to expert advice, get all the answers you need to get your job done.