
Get matched with top energy efficiency auditors in Berkeley, MO
There are 2 highly-rated local energy efficiency auditors.
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Verified Reviews for Energy Efficiency Auditing pros in Berkeley, MO
*The Angi rating for Energy Efficiency Auditing companies in Berkeley, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.
*The HomeAdvisor rating for Energy Efficiency Auditing companies in Berkeley, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.
Last update on October 06, 2025
Find Energy efficiency auditors in Berkeley

Anton's Plumbing, Heating/Cooling & Energy Experts
Anton's Plumbing, Heating/Cooling & Energy Experts
Anton's has been in business for 43 years and maintains an A+ rating with the BBB. We have the highest Google rating in St. Louis. We offer manufacture rebates, and 0% financing for up to 60 months! We currently employ 72 team members who receive customer service training twice per week. Our service technicians have been professionally trained on our 6 step Anton's service system to ensure our customers receive the same GREAT service at a GREAT price each and every visit!! We provide upfront pricing and don't complete any repairs with out approval. We are the only company in St. Louis to offer lifetime warranty on repairs for our UP plan members!!!! Senior Discount- $10 off a service or $100 off complete new system Emergency Service phone number- 314-499-8400
"Did good work, fixed our loose plumbing quickly"
Griffin M on July 2025
Anton's has been in business for 43 years and maintains an A+ rating with the BBB. We have the highest Google rating in St. Louis. We offer manufacture rebates, and 0% financing for up to 60 months! We currently employ 72 team members who receive customer service training twice per week. Our service technicians have been professionally trained on our 6 step Anton's service system to ensure our customers receive the same GREAT service at a GREAT price each and every visit!! We provide upfront pricing and don't complete any repairs with out approval. We are the only company in St. Louis to offer lifetime warranty on repairs for our UP plan members!!!! Senior Discount- $10 off a service or $100 off complete new system Emergency Service phone number- 314-499-8400
"Did good work, fixed our loose plumbing quickly"
Griffin M on July 2025

SmartHouse Heating & Cooling
SmartHouse Heating & Cooling
***For EMERGENCY requests, please CALL our office for immediate assistance*** SmartHouse is a leading provider of HVAC and home performance services throughout the St. Louis area specializing in: • Installation, maintenance, and repair of heating & cooling systems (traditional and geothermal) • Indoor air quality (IAQ) solutions • Energy efficiency upgrades • Solving comfort issues Our focus on exceptional service, quality craftsmanship and bulletproof integrity has been recognized by the Better Business Bureau with their TORCH AWARD FOR ETHICS AND INTEGRITY. If you’ve been looking for a trustworthy heating and cooling contractor that provides best-practice craftmanship with integrity, we hope you will consider choosing SmartHouse!
"I scheduled a tune-up service for my AC for 9-12 o'clock. At 11:35, I called to see if they were still coming, and she tells me 'sorry, the tech is running behind. He will be there closer to 1:00'. I accepted that, then waited until after 1:00 to call them again, only to find out the tech was still an hour away, working on another job. I thought the whole point of a service 'window' was to provide flexibility for the tech in case they get held up. I had to leave my house by 2:30, so I canceled the appointment. I took out an entire day for absolutely nothing."
Michael D on May 2025
***For EMERGENCY requests, please CALL our office for immediate assistance*** SmartHouse is a leading provider of HVAC and home performance services throughout the St. Louis area specializing in: • Installation, maintenance, and repair of heating & cooling systems (traditional and geothermal) • Indoor air quality (IAQ) solutions • Energy efficiency upgrades • Solving comfort issues Our focus on exceptional service, quality craftsmanship and bulletproof integrity has been recognized by the Better Business Bureau with their TORCH AWARD FOR ETHICS AND INTEGRITY. If you’ve been looking for a trustworthy heating and cooling contractor that provides best-practice craftmanship with integrity, we hope you will consider choosing SmartHouse!
"I scheduled a tune-up service for my AC for 9-12 o'clock. At 11:35, I called to see if they were still coming, and she tells me 'sorry, the tech is running behind. He will be there closer to 1:00'. I accepted that, then waited until after 1:00 to call them again, only to find out the tech was still an hour away, working on another job. I thought the whole point of a service 'window' was to provide flexibility for the tech in case they get held up. I had to leave my house by 2:30, so I canceled the appointment. I took out an entire day for absolutely nothing."
Michael D on May 2025

Hosack Plumbing Heating & Cooling
Hosack Plumbing Heating & Cooling
With over twenty-five years of experience in the industry, Hosack Plumbing Heating & Cooling is the right team to trust with all of your plumbing and heating and cooling needs. Our professional St. Louis technicians are highly skilled, extensively trained, extremely knowledgeable, and expertly proficient. We specialize in commercial and residential plumbing as well as residential heating and cooling. Our technicians will do everything possible to ensure that you have the most reliable and efficient plumbing and hvac systems possible.
"Dan and Bill were great to work with and did excellent work. They were fast, professional and friendly"
Clare S on November 2024
With over twenty-five years of experience in the industry, Hosack Plumbing Heating & Cooling is the right team to trust with all of your plumbing and heating and cooling needs. Our professional St. Louis technicians are highly skilled, extensively trained, extremely knowledgeable, and expertly proficient. We specialize in commercial and residential plumbing as well as residential heating and cooling. Our technicians will do everything possible to ensure that you have the most reliable and efficient plumbing and hvac systems possible.
"Dan and Bill were great to work with and did excellent work. They were fast, professional and friendly"
Clare S on November 2024
Divinci Solutions
Divinci Solutions
Divinci Solutions is a company that can help with all of your home improvement needs or handyman work. We do a wide variety of work.
Divinci Solutions is a company that can help with all of your home improvement needs or handyman work. We do a wide variety of work.
Crump HVAC/R and Weatherization
Crump HVAC/R and Weatherization
We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service. Check out our services offered and call or click to schedule an estimate today!
"They did a very good job communicating. Made an agreement and stuck to it. Was very professional and wonderful service. Highly recommend. 10/10"
Jessica I on December 2023
We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service. Check out our services offered and call or click to schedule an estimate today!
"They did a very good job communicating. Made an agreement and stuck to it. Was very professional and wonderful service. Highly recommend. 10/10"
Jessica I on December 2023
ECOcentrix
ECOcentrix
Founded in 2011, ECOcentrix is a residential and commercial solar company that focuses on reducing the amount of energy your building uses before adding solar. Our whole-building approach allows your solar to do more for you. ECOcentrix strives to create healthy living and working spaces through smart energy solutions. We work closely with each client to understand their unique needs and we are committed to customer satisfaction.
Founded in 2011, ECOcentrix is a residential and commercial solar company that focuses on reducing the amount of energy your building uses before adding solar. Our whole-building approach allows your solar to do more for you. ECOcentrix strives to create healthy living and working spaces through smart energy solutions. We work closely with each client to understand their unique needs and we are committed to customer satisfaction.
Direct Solar of America
Direct Solar of America
Our second-to-none brokerage model benefits our customers by making sure they see increased benefits and complete satisfaction, while we make sure they realize the most optimal cost savings. With various financing options, multiple choices for Solar Power technology, and installation our customers value our extensive experience in creating customized solutions that meet their needs. After years of experience and more than 3,500 homes powered with the help of our solar brokerage services, we think the choice is clear! Direct Solar America is a subsidiary of Single Point, Inc. (OTC: SING).
Our second-to-none brokerage model benefits our customers by making sure they see increased benefits and complete satisfaction, while we make sure they realize the most optimal cost savings. With various financing options, multiple choices for Solar Power technology, and installation our customers value our extensive experience in creating customized solutions that meet their needs. After years of experience and more than 3,500 homes powered with the help of our solar brokerage services, we think the choice is clear! Direct Solar America is a subsidiary of Single Point, Inc. (OTC: SING).
Siefert Mechanical - Heating & Cooling
Siefert Mechanical - Heating & Cooling
Specializing in new system installs, System replacement, indoor air quality products such as humidifiers, EAC electronic air cleaners, ductless systems (mini splits) & Wi-fi thermostats. Providing both light commercial & residential service in St. Louis! Our #1 priority is your satisfaction!
"I previously worked with another company to replace my furnace. The first company was extremely flakey and would constantly cancel my appointments or simply not show up. Eventually, I decided to go on Angie's List, and I found Siefert Mechanical. This company was extremely quick to get to my house, give me an estimate, and then perform the service. Not only did Siefert Mechanical quote me a price that was $600 less than the first company, they also never cancelled or missed an appointment. They came out once to give me a quote, then the very next time they came out to my house, they replaced my furnace. The quality of their work is extremely professional, and I would HIGHLY recommend this company for any heating/cooling service you need performed."
Aaron C on January 2021
Specializing in new system installs, System replacement, indoor air quality products such as humidifiers, EAC electronic air cleaners, ductless systems (mini splits) & Wi-fi thermostats. Providing both light commercial & residential service in St. Louis! Our #1 priority is your satisfaction!
"I previously worked with another company to replace my furnace. The first company was extremely flakey and would constantly cancel my appointments or simply not show up. Eventually, I decided to go on Angie's List, and I found Siefert Mechanical. This company was extremely quick to get to my house, give me an estimate, and then perform the service. Not only did Siefert Mechanical quote me a price that was $600 less than the first company, they also never cancelled or missed an appointment. They came out once to give me a quote, then the very next time they came out to my house, they replaced my furnace. The quality of their work is extremely professional, and I would HIGHLY recommend this company for any heating/cooling service you need performed."
Aaron C on January 2021
USA Alarm Service, Inc
USA Alarm Service, Inc
USA Alarm is a national company that has more than two decades of experience and an award winning command center that protects more than 700,000 homes and businesses through the United States, 24 hours a day and 7 days a week. We have offices located throughout the US, with two main offices in Indianapolis, Indiana and Post Falls, Idaho.
USA Alarm is a national company that has more than two decades of experience and an award winning command center that protects more than 700,000 homes and businesses through the United States, 24 hours a day and 7 days a week. We have offices located throughout the US, with two main offices in Indianapolis, Indiana and Post Falls, Idaho.
Pillar to Post
Pillar to Post
Pillar to Post home inspection is the leader in home inspections in the USA and Canada. If you are in the process of buying a new home, selling a home, or just beginning the home buying process, please feel free to contact one of our home inspectors to answer any questions you may have. All Pillar To Post home inspectors are members of regional, national, state and provincial associations, and are fully trained, certified and E&O insured. When looking for a certified professional home inspector Pillar to Post should be your first call.
Pillar to Post home inspection is the leader in home inspections in the USA and Canada. If you are in the process of buying a new home, selling a home, or just beginning the home buying process, please feel free to contact one of our home inspectors to answer any questions you may have. All Pillar To Post home inspectors are members of regional, national, state and provincial associations, and are fully trained, certified and E&O insured. When looking for a certified professional home inspector Pillar to Post should be your first call.
The Berkeley, 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.
- •
Discover the average home energy audit cost, what impacts pricing, and how to save money on your audit with transparent, expert-backed cost info for homeowners.
Find out where homeowners spend the least and the most on house utilities like water, electricity, internet, cable, and natural gas.
A home energy audit is a detailed write-up of how to lower your utility bills and increase your comfort level. Find out if they’re worth the cost.
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Get a detailed breakdown of thermal imaging home inspection costs, including average prices, cost factors, and tips to help homeowners budget.
Home energy audits can identify ways to make your home more energy-efficient. Learn whether an energy audit is a good investment for your home.
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