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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon42
    Verified energy efficiency auditing services reviews

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Avatar for Dunn Plumbing, Heating and Air Conditioning / Dunn One Hour Heating and Air Conditioning

Dunn Plumbing, Heating and Air Conditioning / Dunn One Hour Heating and Air Conditioning

6068 BAUMGARTNER INDUSTRIAL DR
4.71(
256
)
Approved Pro

Dunn Plumbing, Heating and Air Conditioning / Dunn One Hour Heating and Air Conditioning

6068 BAUMGARTNER INDUSTRIAL DR
4.71(
256
)
Approved Pro
Customers say: Super punctual
428 local quotes requested
22 years of experience

Now offering one hour service for heating and air conditioning service. We are factory authorized to service all major brands and we offer all the top products in the industry. Year to year we win numerous awards for customer service and technical skill. Our team is dedicated to providing you with the attention to detail and customer service that can create a whole new level of comfort and energy savings. Led by owner Brett Nejmanowski, our company provides expert sales, service and installation. We have a team of technicians that are fully qualified to help you select the comfort system that best fits your home and your budget. We serve the greater St Louis area, and are a no-nonsense, everything-on-the -table kind of heating and cooling company. Our written 100% satisfaction guarantee is behind all the work we do – if you’re not happy with our heating and cooling services for any reason, we’ll make it right or give your money back, no questions asked! No matter if it is a furnace or AC repair, furnace and AC installation, heat pump installation, or anything heating and air conditioning-related, you will have our guarantee. Along with the services we provide, we’re also passionate about our duty to protect the environment and our social responsibility to the community. In our daily practices, we utilize earth-friendly products and methods to ensure clean outdoor and safe indoor environments for the people we serve. We regularly give back to the community through volunteer work and financial donations. Among the charitable organizations we support are Safe Kids USA, National Multiple Sclerosis Society, Autism Speaks and the Sheriffs’ Association. Financing options available. Numerous rebate programs available. Government subsidized programs available to qualifying homes. Additional phone number (618) 717-0707 Also servicing clients from both 14248 F Manchester Rd, Ste. 190, Manchester MO, 63011 & 110 West Main St., Ste. A, Belleville IL, 62220!

"Very professional and thorough"

Carla F on May 2025

Now offering one hour service for heating and air conditioning service. We are factory authorized to service all major brands and we offer all the top products in the industry. Year to year we win numerous awards for customer service and technical skill. Our team is dedicated to providing you with the attention to detail and customer service that can create a whole new level of comfort and energy savings. Led by owner Brett Nejmanowski, our company provides expert sales, service and installation. We have a team of technicians that are fully qualified to help you select the comfort system that best fits your home and your budget. We serve the greater St Louis area, and are a no-nonsense, everything-on-the -table kind of heating and cooling company. Our written 100% satisfaction guarantee is behind all the work we do – if you’re not happy with our heating and cooling services for any reason, we’ll make it right or give your money back, no questions asked! No matter if it is a furnace or AC repair, furnace and AC installation, heat pump installation, or anything heating and air conditioning-related, you will have our guarantee. Along with the services we provide, we’re also passionate about our duty to protect the environment and our social responsibility to the community. In our daily practices, we utilize earth-friendly products and methods to ensure clean outdoor and safe indoor environments for the people we serve. We regularly give back to the community through volunteer work and financial donations. Among the charitable organizations we support are Safe Kids USA, National Multiple Sclerosis Society, Autism Speaks and the Sheriffs’ Association. Financing options available. Numerous rebate programs available. Government subsidized programs available to qualifying homes. Additional phone number (618) 717-0707 Also servicing clients from both 14248 F Manchester Rd, Ste. 190, Manchester MO, 63011 & 110 West Main St., Ste. A, Belleville IL, 62220!

"Very professional and thorough"

Carla F on May 2025


Avatar for Anton's Plumbing, Heating/Cooling & Energy Experts

Anton's Plumbing, Heating/Cooling & Energy Experts

950 Bolger Ct
4.67(
484
)
Approved Pro

Anton's Plumbing, Heating/Cooling & Energy Experts

950 Bolger Ct
4.67(
484
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
450 local quotes requested

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


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

5.00(
1
)

Crump HVAC/R and Weatherization

5.00(
1
)
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

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


Avatar for ECOcentrix

ECOcentrix

No reviews yet

ECOcentrix

No reviews yet
14 years of experience

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.


Gunther Infrared

No reviews yet

Gunther Infrared

No reviews yet

Thermal imaging of interior/exterior of home or business. Thermal imaging can reveal moisture, leaks, electrical problems, and heat or energy loss. These problems can be completely invisible to the human eye but easily seen through an infrared camera. Graduating with a degree in physics and have been working with infrared cameras and lasers in the industry for two years. Understanding of the science is just as important as the images themselves.

Thermal imaging of interior/exterior of home or business. Thermal imaging can reveal moisture, leaks, electrical problems, and heat or energy loss. These problems can be completely invisible to the human eye but easily seen through an infrared camera. Graduating with a degree in physics and have been working with infrared cameras and lasers in the industry for two years. Understanding of the science is just as important as the images themselves.


Avatar for All Climate Mechanical

All Climate Mechanical

2040 Meramec St
No reviews yet

All Climate Mechanical

2040 Meramec St
No reviews yet

We are a heating and cooling, commercial refrigeration, and commercial kitchen equipment service contractor offering services to residents and businesses of Franklin County, St. Louis County and surrounding areas.

We are a heating and cooling, commercial refrigeration, and commercial kitchen equipment service contractor offering services to residents and businesses of Franklin County, St. Louis County and surrounding areas.


Direct Solar of America

3101 N Central Ave
No reviews yet

Direct Solar of America

3101 N Central Ave
No reviews yet
14 years of experience

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).


Avatar for Siefert Mechanical - Heating & Cooling

Siefert Mechanical - Heating & Cooling

15 Linda Ln
5.00(
43
)

Siefert Mechanical - Heating & Cooling

15 Linda Ln
5.00(
43
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

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


Avatar for USA Alarm Service, Inc

USA Alarm Service, Inc

510 S Clearwater Loop
No reviews yet

USA Alarm Service, Inc

510 S Clearwater Loop
No reviews yet
29 years of experience

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.

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Energy Efficiency Auditing questions, answered by experts

There are several signs that your house might have poor ventilation, including lingering odors, condensation on your windows, or mold and mildew. Your home may also feel stale and stuffy, or you might have trouble maintaining a comfortable temperature in your home. On top of that, you might develop allergy symptoms, such as sneezing, coughing, or headaches.

Thankfully, LED lights use less electricity than incandescent lights, meaning you won’t spend as much on utility bills by using these light strips. Each 5-meter LED light strip will cost about $3 per year on your energy bill.

If you want a new boiler that’s going to help lower your fuel bills, you should buy one that has a high energy-efficiency rating. For example, a boiler that is rated “A” uses at least 90% of the energy created by the boiler. And in order to enjoy the best performance, it’s important to have it installed properly by a highly-rated tech.

The best way to save money on home heating oil is to get large deliveries in the summer months when the prices are lowest. However, this method will only work if you have a separate storage tank or an unusually large primary tank. You can sometimes save money by opting into a delivery contract, as some companies offer set prices that they believe will sit at the average cost over the contract term. If the price of oil rises, you could enjoy some savings, but keep in mind that you might also pay a bit more if the price decreases.

A small sump pump running infrequently uses an average of 10 kilowatt-hours (kWh) of electricity per month. The average cost for electricity is $0.171 per kWh. The size and use frequency affect how much electricity it uses. Sump pumps average one-third to one horsepower (hp) motors. One hp is equal to 745.7 watts. Watts multiplied by the time your pump is running divided by 1,000 equals your average kWh. Multiply kWh by your average cost of electricity. In areas with high rain or a marsh basin, the average cost can be as high as $15-$25 a month.

The Sappington, 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.

What do you need done? We’ll find top pros.
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