
Get matched with top nest installation pros in Barnhart, MO
There are 16 highly-rated local nest installation pros.
Need a pro for your nest installation project in Barnhart, MO?
TRUSTED BY BARNHART, MO HOMEOWNERS
4.5
Average homeowner rating494
Verified nest installation services reviews
Verified Reviews for Nest Installation pros in Barnhart, MO
*The Angi rating for Nest Installation companies in Barnhart, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Nest Installation needs.
*The HomeAdvisor rating for Nest Installation companies in Barnhart, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Nest Installation needs.
Last update on October 30, 2025
Find Nest installation pros in Barnhart

ADT
ADT
ADT home security systems are backed by more than 145 years of experience. As the leader in home security, ADT can help you customize a home security system with easy-to-use equipment and special security features to meet your safety needs. We have service centers nationwide that can install an ADT home security system within 24 hours in most areas. Once your home is equipped with our top-of-the-line system, it is connected to a network of ADT Monitoring Centers nationwide which deliver non-stop security monitoring 365 days a year. All of our installation technicians are internal employees, and not third-party contractors. You can count on your Security Advisor to take the time to set up your system properly, help you understand how the system works, and help make sure your home and family are thoroughly protected.
"Bought security through ADT mainly for the automation options that come with the system. My spouse loves being able to turn on and off our lights in different areas of the house while we are gone. We travel often, so giving the illusion that we are home is a good deterrent."
Luke W on October 2025
ADT home security systems are backed by more than 145 years of experience. As the leader in home security, ADT can help you customize a home security system with easy-to-use equipment and special security features to meet your safety needs. We have service centers nationwide that can install an ADT home security system within 24 hours in most areas. Once your home is equipped with our top-of-the-line system, it is connected to a network of ADT Monitoring Centers nationwide which deliver non-stop security monitoring 365 days a year. All of our installation technicians are internal employees, and not third-party contractors. You can count on your Security Advisor to take the time to set up your system properly, help you understand how the system works, and help make sure your home and family are thoroughly protected.
"Bought security through ADT mainly for the automation options that come with the system. My spouse loves being able to turn on and off our lights in different areas of the house while we are gone. We travel often, so giving the illusion that we are home is a good deterrent."
Luke W on October 2025

Streib Company
Streib Company
We are a full-service electric, media, security and energy solution contractor in St. Louis, MO, built on a strong foundation of good old-fashioned work ethics. Our office hours are M-F 8-4:30, we offer after hours emergency service as well.
"Great job. I would definitely hire again."
Maureen K on February 2022
We are a full-service electric, media, security and energy solution contractor in St. Louis, MO, built on a strong foundation of good old-fashioned work ethics. Our office hours are M-F 8-4:30, we offer after hours emergency service as well.
"Great job. I would definitely hire again."
Maureen K on February 2022

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
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

Power Up Electrical Contractors, LLC
Power Up Electrical Contractors, LLC
We are a 4.9 star rating on Home Advisor/Angie's List. Licensed and Union. We can take on a wide range of residential and commercial electrical projects to include full installation for additions and remodels as well as wiring and panel upgrades, and a variety of other projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction. We accept Check, Cash or Credit Cards
"It went great, I was selling my house and some electrical work was needed after the inspector flagged some things and closing date was coming quick. I got a hold of Jeff and he came to the house and said no problem we can take care of it. Very happy with the work that was done."
Tim W on February 2025
We are a 4.9 star rating on Home Advisor/Angie's List. Licensed and Union. We can take on a wide range of residential and commercial electrical projects to include full installation for additions and remodels as well as wiring and panel upgrades, and a variety of other projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction. We accept Check, Cash or Credit Cards
"It went great, I was selling my house and some electrical work was needed after the inspector flagged some things and closing date was coming quick. I got a hold of Jeff and he came to the house and said no problem we can take care of it. Very happy with the work that was done."
Tim W on February 2025

Reinhold Electric Inc
Reinhold Electric Inc
We started in 1976, to provide quality and assurance to always satisfy the customer. We guarantee all of our work, and our employees deliver this proud craftsmanship. We also offer 24 hour emergency service. With a live answering service to take your calls, we have owners and electricians that are on standby around the clock.
"I really wanted to have a good experience with Reinhold. We’ve used them in the past and they did good work, we thought… recently our garage’s power stopped working, which is fed by a panel on the pole that they installed in August of 2022. We NEVER had a single electrical issue until after that pole was installed which is starting to make sense. A few months ago we began having electrical issues in our house, so we called Reinhold because we thought they did a good job when installing the pole that fell in 2022. The technicians that were out to see what the cause of the electrical issues in the house were said that the lines under ground were corroded (which may have been true), so we accepted to let them fix it. They hand dug by the electric pole, buried conduit and ran new wire to the house and everything seemed to be fine until we recently started having issues with the electric in our garage. The location where they dug and buried the conduit for the wire going to the house is in a very close location to where the conduit goes for the wires going from the pole to the garage. I called for an estimate and was told $5,000 worse case scenario which may be understandable considering that would include cutting asphalt, trenching, new conduit, new wire and labor so I get that. Upon receiving this news I decided to just take care of it myself. I went to the building department for our county to take the test to do residential electric work, paid for the permit to be pulled, had everything cleared with Missouri 811 incase I needed to dig and bought $700 worth of new wire. I pulled the old wire, saw that there was a break in the wire due to corrosion from water getting in the conduit underground so I started digging right where the conduit meets the pole that Reinhold installed just to see if there was a break in the conduit. Sure enough, there’s a small section of conduit that was crudely placed over where the old conduit underground is and the new conduit where they installed the pole. They had it lightly wrapped in what looks like some kind of landscape fabric (thought it was electrical tape at first). So there was no protection in the conduit against water getting in which was what caused the wire to corrode to the point of no longer working. Mind you, Reinhold is THE ONLY company we’ve had at our house for electrical work since owning the house. When I saw this piece of conduit being very improperly “connected”, I took pictures, and videos and sent them to the estimator who came out to give me a quote for fixing the electrical issue in the garage. He said he would give me a call back after speaking with the technicians that were there more recently to fix the electrical issue with the house as well as the ones who installed the pole in August of 2022. After speaking with them he said that none of them claimed to do that and that their technicians would never do something like that and all these denials of my claim. He then told me that he could come out and fix it for $500-$600 FOR A 3” LONG SECTION OF CONDUIT THAT NEEDED TO BE REPAIRED FROM THEIR PREVIOUS WORK. I am not the type to ask for free stuff from ANYONE, I’m incredibly happy to pay for good service by good people and I thought that’s what we were doing with Reinhold until yesterday. They completely denied the fact that their technicians made a mistake, and didn’t offer to fix the issue or anything. I was told that all of the technicians that have been on our property did not do it and that it would be $500-$600 to fix something they installed incorrectly. I understand if a technician didn’t remember every little detail from a job they did in 2022, but there is no integrity or accountability on their part with this issue. It was either done in 2022 when the new pole was installed or a few months ago when the new wire was put in with new conduit by REINHOLD."
Jacob H on June 2025
We started in 1976, to provide quality and assurance to always satisfy the customer. We guarantee all of our work, and our employees deliver this proud craftsmanship. We also offer 24 hour emergency service. With a live answering service to take your calls, we have owners and electricians that are on standby around the clock.
"I really wanted to have a good experience with Reinhold. We’ve used them in the past and they did good work, we thought… recently our garage’s power stopped working, which is fed by a panel on the pole that they installed in August of 2022. We NEVER had a single electrical issue until after that pole was installed which is starting to make sense. A few months ago we began having electrical issues in our house, so we called Reinhold because we thought they did a good job when installing the pole that fell in 2022. The technicians that were out to see what the cause of the electrical issues in the house were said that the lines under ground were corroded (which may have been true), so we accepted to let them fix it. They hand dug by the electric pole, buried conduit and ran new wire to the house and everything seemed to be fine until we recently started having issues with the electric in our garage. The location where they dug and buried the conduit for the wire going to the house is in a very close location to where the conduit goes for the wires going from the pole to the garage. I called for an estimate and was told $5,000 worse case scenario which may be understandable considering that would include cutting asphalt, trenching, new conduit, new wire and labor so I get that. Upon receiving this news I decided to just take care of it myself. I went to the building department for our county to take the test to do residential electric work, paid for the permit to be pulled, had everything cleared with Missouri 811 incase I needed to dig and bought $700 worth of new wire. I pulled the old wire, saw that there was a break in the wire due to corrosion from water getting in the conduit underground so I started digging right where the conduit meets the pole that Reinhold installed just to see if there was a break in the conduit. Sure enough, there’s a small section of conduit that was crudely placed over where the old conduit underground is and the new conduit where they installed the pole. They had it lightly wrapped in what looks like some kind of landscape fabric (thought it was electrical tape at first). So there was no protection in the conduit against water getting in which was what caused the wire to corrode to the point of no longer working. Mind you, Reinhold is THE ONLY company we’ve had at our house for electrical work since owning the house. When I saw this piece of conduit being very improperly “connected”, I took pictures, and videos and sent them to the estimator who came out to give me a quote for fixing the electrical issue in the garage. He said he would give me a call back after speaking with the technicians that were there more recently to fix the electrical issue with the house as well as the ones who installed the pole in August of 2022. After speaking with them he said that none of them claimed to do that and that their technicians would never do something like that and all these denials of my claim. He then told me that he could come out and fix it for $500-$600 FOR A 3” LONG SECTION OF CONDUIT THAT NEEDED TO BE REPAIRED FROM THEIR PREVIOUS WORK. I am not the type to ask for free stuff from ANYONE, I’m incredibly happy to pay for good service by good people and I thought that’s what we were doing with Reinhold until yesterday. They completely denied the fact that their technicians made a mistake, and didn’t offer to fix the issue or anything. I was told that all of the technicians that have been on our property did not do it and that it would be $500-$600 to fix something they installed incorrectly. I understand if a technician didn’t remember every little detail from a job they did in 2022, but there is no integrity or accountability on their part with this issue. It was either done in 2022 when the new pole was installed or a few months ago when the new wire was put in with new conduit by REINHOLD."
Jacob H on June 2025
Perfect Air
Perfect Air
Founded in 1982. Team members that are drug tested and background checked insuring that the people in your home are safe. We specialize in repairing and replacing residential heating and air conditioning systems. "Fixed Right or It's Free" Techs available Sat & Sun call for appointment.
Founded in 1982. Team members that are drug tested and background checked insuring that the people in your home are safe. We specialize in repairing and replacing residential heating and air conditioning systems. "Fixed Right or It's Free" Techs available Sat & Sun call for appointment.

Good Service Heating & Cooling, LLC
Good Service Heating & Cooling, LLC
Good Service Heating and Cooling,LLC. Over 30 years of HVAC experience. Honest and affordable. Do it right the first time.
"He responded very quickly and was able to come out and fix my mini split. I would recommend this company to anyone looking for a fair price and good work. Thanks again! "
Jackie K on October 2025
Good Service Heating and Cooling,LLC. Over 30 years of HVAC experience. Honest and affordable. Do it right the first time.
"He responded very quickly and was able to come out and fix my mini split. I would recommend this company to anyone looking for a fair price and good work. Thanks again! "
Jackie K on October 2025
Monitex Security, Inc.
Monitex Security, Inc.
We only provide Virtual Remote Guardian. We do not offer any other services. We offer over 20 years experience in the Security Services Industry. We've established a solid reputation in security projects for residential homes in the Lewisville and surrounding areas. We are committed to providing a personalized service for each individual project we take on. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.
We only provide Virtual Remote Guardian. We do not offer any other services. We offer over 20 years experience in the Security Services Industry. We've established a solid reputation in security projects for residential homes in the Lewisville and surrounding areas. We are committed to providing a personalized service for each individual project we take on. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.
Electric Vehicle Charging Station, LLC
Electric Vehicle Charging Station, LLC
We are extremely passionate about the work that we do. You can depend on us to provide a high quality service at a fair and honest price. We understand that the future of our business depends upon our reputation and that is why customer service is by far our highest priority. If you are looking for a professional you can trust, please call today to schedule a no-obligation estimate!
We are extremely passionate about the work that we do. You can depend on us to provide a high quality service at a fair and honest price. We understand that the future of our business depends upon our reputation and that is why customer service is by far our highest priority. If you are looking for a professional you can trust, please call today to schedule a no-obligation estimate!
A & A Heating and Air Conditioning
A & A Heating and Air Conditioning
A & A Heating and Air Conditioning is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.
A & A Heating and Air Conditioning is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.
The Barnhart, MO homeowners’ guide to nest installation services
From average costs to expert advice, get all the answers you need to get your job done.
•Discover the true swamp cooler installation cost. Learn about average prices, cost factors, and ways to save on your home cooling project.

A mini-split allows for zoned cooling, helpful for cooling spaces like garages. Learn the cost to install a mini-split unit in a garage with this guide.

Your leaky ductwork may be hiking up your energy bills. We explore the cost of checking air ducts for leaks, which may be worth it for your home.

What is HVAC? Learn how your home’s heating, ventilation, and air conditioning system works to regulate your home’s temperature, humidity, and quality.

Record-setting temperatures can negatively affect your home and yard. Learn 12 ways to protect your property during heat waves and drought conditions.

Water-cooled air conditioners use water in the cooling process of your air conditioner. Primarily used in larger buildings, these energy-efficient AC units can also be used in residential areas. Read on to learn more about these air conditioners.
- Pevely, MO Nest installation pros
- Imperial, MO Nest installation pros
- Kimmswick, MO Nest installation pros
- Herculaneum, MO Nest installation pros
- Valmeyer, IL Nest installation pros
- Arnold, MO Nest installation pros
- Crystal City, MO Nest installation pros
- House Springs, MO Nest installation pros
- Hillsboro, MO Nest installation pros
- High Ridge, MO Nest installation pros
- Oakville, MO Nest installation pros
- Festus, MO Nest installation pros
- Murphy, MO Nest installation pros
- Fenton, MO Nest installation pros
- Dittmer, MO Nest installation pros
- Sappington, MO Nest installation pros
- Sunset Hills, MO Nest installation pros
- Columbia, IL Nest installation pros
- Lemay, MO Nest installation pros
- Valley Park, MO Nest installation pros
- Waterloo, IL Nest installation pros
- Lakeshire, MO Nest installation pros
- Affton, MO Nest installation pros
- Marlborough, MO Nest installation pros
- Eureka, MO Nest installation pros
- Manchester, MO Nest installation pros
- Kirkwood, MO Nest installation pros
- Warson Woods, MO Nest installation pros
- Oakland, MO Nest installation pros
- East Carondelet, IL Nest installation pros
- 🌱 "Mow a small front yard"
- 🛠 "Fix a leaking pipe under the sink"
- 🏠 "Repair shingles on an asphalt roof"





