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TRUSTED BY EUREKA, MO HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon46
    Verified energy efficiency auditing services reviews

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

Avatar for Hosack Plumbing Heating & Cooling
Hosack Plumbing Heating & Cooling
4.8(
345
)
Energy Audit - For BusinessHome Energy Audit

Serving Eureka, MO and surrounding areas

Approved

In business since 2009

Warranties offered

Credit card accepted

"I want to thank Hosack Plumbing, and Kent, for getting my situation cleaned up quickly and professionally. My water heater install is perfect, my water pressure spot on thanks to the new PRV, and is ready for inspection. Kent was thorough, professional, and very clean. He noticed my mask when I answered the door and wore a kn95 mask the whole time. The life coaching advice was an added bonus. Kent's work was great and I'm very pleased with the service provided."
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+2

Response time8 hrs
8 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for St Louis Insulation
St Louis Insulation
4.9(
67
)
Energy Audit - For BusinessHome Energy Audit

Serving Eureka, MO and surrounding areas

In business since 2001

Free estimates

Credit card accepted

"I was totally satisfied with this Company from the beginning to the end. I scheduled an appointment and was seen right away. A representative came to my home and assessed what I needed to have done. The price was reasonable and the work was completed in a timely fashion. I would recommend this Company in a HEARTBEAT!! Thanks for ALL that you DO!!"
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+40

Recommended by98%of homeowners
Avatar for Foam Engineers
Foam Engineers
4.8(
229
)
Home Energy Audit

Serving Eureka, MO and surrounding areas

In business since 1988

Free estimates

Credit card accepted

"Fantastic experience with Paul, Mindy and their team when they helped us insulate the attic spaces surrounding and above our 1.5 story house. We have immediately seen the benefit from the insulation through our energy consumption, reducing the run-time of our unit by ~4 hours a day on like-weather days. This team will take care of your exact needs by tailoring their solutions to your specific situation and they don't cut any corners in ensuring your getting the value deserved!"
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 Eureka, MO and surrounding areas

In business since 1954

Free estimates

Emergency services offered

"The boiler was fairly new, but had never been serviced. The workman came on Saturday in response to an emergency call, and fixed the boiler as well as performed basic maintenance which badly needed to be done. He didn't bleed the radiators, so I will be contacting the company to make arrangements to have that techs do this as well. I would consider relying on Vitt's for routine maintenance of our heating system, as well as replacement of our water heater."
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 Eureka, MO and surrounding areas

In business since 1978

"We called for a quote and Mindy came the same day to review our spaces and provide a price. After rain cancelled our first installation, the second date was dry and the team of three guys were on time. They reviewed where we wanted the tubes and took their time with the installation. The addition of natural light makes a huge difference and we are very satisfied with the product and the installation."
Recommended by80%of homeowners
Avatar for Gant Heating and Cooling
Gant Heating and Cooling
5.0(
10
)
Energy Audit - For BusinessHome Energy Audit

Serving Eureka, 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
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Energy Efficiency Auditing FAQs, answered by experts

A whole-house humidifier can positively impact energy consumption by improving heating efficiency. During colder months, humidified air feels warmer, which allows you to lower your thermostat without sacrificing comfort. This adjustment can lead to significant energy savings as your heating system works more efficiently. However, it's important to use the humidifier judiciously, as excessive humidity could potentially strain your cooling system in warmer months.

Modern windows provide enhanced UV protection, improved heat retention, and cooling efficiency, contributing to overall household energy savings.

Expert installation optimizes insulation properties, cutting energy costs and enhancing home comfort year-round.

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

After you receive your audit and report, review the findings and determine which of the prescribed changes you want to make to improve your home’s energy efficiency. Start by contacting the type of professionals recommended by the auditor who can help you remedy the issues discovered during the audit. Prioritize the projects by urgency, importance, and budget. Then, gather estimates from several professionals, remembering to verify any necessary licensing and experience information.

The Eureka, 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.