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TRUSTED BY IMPERIAL, MO HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon27
    Verified energy efficiency auditing services reviews

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

Avatar for Foam Engineers
Foam Engineers
4.8(
229
)
Home Energy Audit

Serving Imperial, MO and surrounding areas

In business since 1988

Free estimates

Credit card accepted

"A fabulous experience in workmanship, pricing, cleanup and follow-up on meeting expectations. I spoke to three companies and immediately selected the best. Call PEC We had foam, new baffles and more insulation to be R-49 rated. As new retirees, our ROI is due to increased energy cost by 25% compared usage from 2020 to 2021. With energy costs rising we have to be proactive. We made an intelligent decision"
Top Plates/ Wiring
Top Plate / wiring
Sealed Duct Work
Sealed Duct Work
Sealed Duct Work

+17

Response time9 hrs
Recommended by98%of homeowners
Avatar for Vitt Heating & Air Conditioning Co Inc
Vitt Heating & Air Conditioning Co Inc
4.7(
161
)
Energy Audit - For BusinessHome Energy Audit

Serving Imperial, MO and surrounding areas

In business since 1954

Free estimates

Emergency services offered

"

We quoted three companies to replace our old HVAC system. I asked two companies that I knew, or got referrals on, and I needed a third to round out my quoting process. I called Vitt based on the good Angie's List reviews I read, not knowing anything about them other than they looked good on Angie's List. Jeff Vitt came out and we talked about what I wanted and needed to improve our A/C needs and also reduce our energy bills . He recommended a system that was more efficient than the other companies suggested systems, and the equipment he suggested was rated higher in consumer reports than the other company's suggested equipment as well. PLUS, his pricing was better which made the choice a no-brainer for me. The installation was performed on time and done better than I hoped. For this large purchase on which I did a lot of homework, Vitt was excellent. I was a little nervous never having used them before, but I am very pleased with the service, knowledge, performance and overall value I received from them. Don't be swayed by the big name companies in town.  These guys know their stuff and do a great job at a great price. I highly recommend them for any HVAC needs.

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Military Discounts (retired & active)
Senior Citizen Discounts
Residential HVAC
Multifamily & Commercial Installation & Maintenance
Professionally Installed Ducts

+6

Response time3 days
Response rate100%
Recommended by91%of homeowners
Peterson Energy Consultants
3.9(
67
)
Energy Audit - For BusinessHome Energy Audit

Serving Imperial, MO and surrounding areas

In business since 1978

"It went great. 
They did a great job with the energy audit.  After that, they gave a very competitive bid for a lot of work we needed on the upstairs, as the prior owner did a horrible job.  
They were fast, efficient and very flexible on our schedule.  Within a day, we noticed a major difference in the temperature situation in the upstairs - it was a major improvement.  I highly recommend!
"
Recommended by80%of homeowners
Avatar for Gant Heating and Cooling
Gant Heating and Cooling
5.0(
10
)
Energy Audit - For BusinessHome Energy Audit

Serving Imperial, MO and surrounding areas

In business since 2006

Free estimates

Emergency services offered

At Gant Heating and Cooling we are the top rated Heating and AC provider in the St. Louis area. With over 20 years of experience no job is too complex for us. We cover all residential and commercial repairs, replacements, and new construction jobs. We are experts at solving problems and helping our customers find the most cost effective way to fix their problem. Call us today for your free estimate! Repair and service HVAC equipment

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+1

Recommended by100%of homeowners
Avatar for R&J Solar LLC
R&J Solar LLC
5.0(
2
)
Energy Audit - For BusinessHome Energy Audit

Serving Imperial, MO and surrounding areas

In business since 2022

Free estimates

Credit card accepted

We provide residential and commercial solar power options, and provide support services for industry partner companies. We offer no cost consultations and $0 down financing. Please contact our office for a consultation at (931)922-8258.

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+3

Recommended by100%of homeowners
Avatar for American Society of Heating & Cooling Specialists
American Society of Heating & Cooling Specialists
5.0(
1
)
Energy Audit - For BusinessHome Energy Audit

Serving Imperial, MO and surrounding areas

In business since 1995

Emergency services offered

Credit card accepted

HVAC Technicians At Your Service Since 1991; As a fully licensed, bonded and insured air conditioning, heating and ventilation company, American Society of Heating and Cooling Specialists provides residential and commercial maintenance, installation and repair services on all major brands of heating, air conditioning and restaurant equipment to customers throughout St. Louis, St. Charles, and the surrounding areas.

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Recommended by100%of homeowners
Avatar for Happy Roof
Happy Roof
3.3(
22
)
Energy Audit - For BusinessHome Energy Audit

Serving Imperial, MO and surrounding areas

In business since 2015

Free estimates

Emergency services offered

Happy Roof is a locally owned company who specialize exterior improvements. Located in St. Charles, MO, we serve the entire metro area. We use only the highest quality material and trained professional craftsman. \n \nWhen interacting with Happy Roof, you will notice that we are particularly focused on the principles of quality workmanship, timely completion, competitive pricing, and integrity in all our business dealings. We combine knowledge and research, with our extensive practical experience, to ensure a specialized approach for your project. \n \nContact us today for a fair and accurate estimate of your project. We look forward to adding you to our long and growing, list of happy customers.

Slate Replica
Slate title profile
Slate title profile
Spanish Clay
Slate title profile

+46

Response time2 days
Recommended by71%of homeowners
Tri State Solar Power, LLC
New to Angi
Home Energy Audit

Serving Imperial, MO and surrounding areas

In business since 2019

Free estimates

We take great pride our experience, expertise, quality, and customer service that we provide to meet the consumers' needs. It is our mission to provide excellent workmanship, and complete customer satisfaction from start to completion of a project. order to understand the needs, and expectations of our customers, we take great care to work, and communicate with every customer a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

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Energy Efficiency Auditing FAQs, answered by experts

Energy-efficient windows cost more than other window types, but they can help you save on your monthly energy bills, get you some breaks on your taxes, and even increase the value of your home. According to Michael S. Regan, Administrator of the U.S. Environmental Protection Agency, when people invest in green upgrades like energy-efficient windows, they save energy, money, and more.

If your AC runs constantly, it could be due to a number of things, including a faulty thermostat, incorrect temperature settings, or broken equipment. Alternatively, you might have an airflow problem (for example, blocked vents or leaky ductwork). Either way, an HVAC pro can identify the specific problem and fix it for you.

Installing weather stripping or upgrading to insulated panels can improve efficiency.

Keep the unit full but not overloaded, ensure door seals are tight, set correct temperatures, and avoid frequent door openings. Position the appliance away from heat sources for optimal performance.

Smart glass doesn’t use a lot of electricity, and you can expect a standard window to add between $1 and $2 per year to your electric bills. Smart glass is proof that energy-efficient windows work. Although your smart windows may consume a little energy to operate, they can save enough energy to offset the costs. If you’re concerned about the minimal bump to your electricity consumption, you can opt for smart tint, which doesn’t require electricity to work.

The Imperial, MO homeowners’ guide to energy efficiency auditing services

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