The Trusted St. Louis HVAC Contractor

If you’re looking for a trustworthy heating and cooling contractor that provides best-practice craftsmanship with integrity, then you’ve come to the right place! Our only goal is your 100% satisfaction when it comes to living in a more comfortable, energy efficient home in the St. Louis area and beyond.

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314-370-1816

Winter Heating Specials!

10% TRADE-IN DISCOUNT OFF PRICE OF SYSTEM
$1300 INSTANT REBATE ON DAIKIN FIT VARIABLE CAPACITY SYSTEM
UP TO $325 in Utility Rebates From Spire
PLUS NO REPAIR COST until 2037* on Daikin Fit System
0% INTEREST WITH NO PAYMENTS until SUMMER 2026
FREE INDOOR AIR QUALITY SOLUTION
Up to $2600 FEDERAL TAX CREDIT on qualifying systems

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HVAC Services

Stay cool. Get cozy. Our heating and cooling services keep you comfortable all year long.

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Indoor Air Quality

Breathe easy. We make sure the air in your home is clean and safe.

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Improve Comfort

Turn your home into the oasis it can be.

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Energy Efficiency

Be green, save green, and be comfortable.

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Heating and AC Repair and Replacement in St. Louis

Finding a heating and cooling contractor near you that you can trust is one thing, and often times finding a contractor that is available 24/7 is another. Fortunately for homeowners throughout the greater St. Louis area, SmartHouse makes it our day to day business to be both for our customers! The NATE, ENERGY STAR Missouri, and Building Performance Institute certified team at SmartHouse is dedicated to finding the right solutions for your home comfort, saving you energy and increasing the health of your indoor environment.

From AC Replacement & Furnace Repair to Zoning & Home Performance Services

SmartHouse offers an extensive array of heating, cooling, diagnostic, and improvement services for both existing homes and new construction jobs. Not only can we repair and maintain any make and model of air conditioner, heat pump, boiler, or furnace, we can also diagnose your home performance issues through a comprehensive analysis of your home, then recommend the right home improvements to reduce your heating and cooling needs. From there, we can handle your AC and furnace replacement with new equipment that is perfectly sized, to save you money on your energy bills for years to come!

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The Best Equipment, The Best Price

Homeowners make the Smart Choice because they know we stand behind our work, and because SmartHouse is dedicated to delivering reliable quality at the best possible price. We always offer multiple options for improving the efficiency and affordability of your home, like innovative Daikin, Carrier and Mitsubishi systems. But you can rest easy, knowing your home comfort needs will always take precedence over any kind of sales quota. We can even reduce the cost of your AC or furnace installation through our list of rebates, incentives, and financing options!

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Award-Winning, Trusted Experts in St. Louis Home Comfort

The SmartHouse team is a proud recipient of the BBB Torch Award for outstanding ethics and integrity. The BBB Torch Award speaks to our shared mission of providing the community with trustworthy and reliable HVAC and home performance services. Learn more about our commitment to keeping the Greater St. Louis community safe and comfortable and our mission to bring accessible, energy-efficient heating and cooling solutions to all homes in the area or call us now at 314-270-1545.

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SmartHouse is Available 24/7

At SmartHouse, our knowledge, training, positive attitude toward service, and business ethics makes us the “Smart Choice” for all of your heating, cooling, efficiency, and comfort needs. However, you don’t just need our expertise during “usual” business hours — when you need emergency HVAC services, we're here to cater to your schedule. When you call SmartHouse, you will:

Speak to a live person, any hour of any day

Get access to emergency HVAC service 8am - 7pm Weekdays; 8 am to 5pm Weekends & Holidays.

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Overall Rating

5.0 301 reviews

Review Us

				Frank is the best technician I’ve ever had.
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Barrington T.
1/16/2025
				Nick did a great job with coming out and accessing our situation. He was knowledgeable, professional and answered all of my questions. I would use them again in the future.
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David W.
1/13/2025
				Awesome job. The technician was truly a blessing
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Terri C.
1/13/2025
				Super friendly, quick turnaround on install. Great prices and warranties:
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Chase M.
12/19/2024
				These guys are friendly, professional, and extremely knowledgeable. Strongly recommend.
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Laura D.
12/15/2024
				Scott resolved the problem and informed me about what might be needed. He did a fine job.
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Steven P.
12/15/2024
				We called Smart House for a second opinion after another HVAC company told us the circuit panel needed to be replaced for $900 or we might consider replacing the entire furnace. Smart House got to us the same day we called them, found a short in the wiring to our humidistat, rewired a few wires and got us up and running in an hour. Their technician saved us a boat load of money. Thank you Smart House for your honest and fairly priced service!
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Kellye M.
12/15/2024
				Great company and technicians! Spend the time to walk you through what they’re doing and give honest advice and recommendations!
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Yosef G.
12/08/2024
				My HVAC Technician Nick came earl than the scheduled appointment time. Nick was tremendously helpful at diagnosing the issue and gave me great advice on how to keep my HVAC running smoothly moving forward. I definitely recommend this company. I was satisfied with my services.
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Jasmine B.
12/08/2024
				Smart House arrived within 24 hours for a non-emergency call. They charged me $30 less then quoted and was professional throughout the process with update calls and a great disposition. Thank you!
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Warren M.
12/08/2024
				"Cool Jay" showed up on time, was very polite and professional. I was referred to your company by my aunt. I am quite pleased and confident that you guys are our new service technicians. Thank you!
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Melodie M.
12/08/2024
				These guys are the best! They work and care for our house as if it was theirs.
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Charles B.
12/08/2024
				The serviceman Scott was very knowledgeable and friendly and took care of my boiler. I will definitely use them again. Price was reasonable also for what he had to do.
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Stephanie D.
12/08/2024
				The technician was very polite and friendly. Explain what he was checking and told me what was the problem. Will recommend to family and friends.
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Tracie S.
12/08/2024
				Smart house heating and cooling did a great job repairing my furnace the technician was polite and professional and worked digitally to fix my problem
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Virginia J.
12/08/2024
				SmartHouse beat the competition with a promt return call after a busy holiday blistering cold weekend. Nick H provided an accurate time of arrival; he consulted me and resolved my heating problem swiftly. Nick is highly professional and got the job done right. Thank you!
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Frank K.
12/08/2024
				Our HVAC system was replaced by SmartHouse in the late-summer of 2023. They serviced the units earlier last week as part of a pre-paid semi-annual maintenance program. Yesterday, we noticed the upstairs unit wasn’t working. Even though it was a holiday weekend, they dispatched an on-call technician to diagnose and correct the problem before the upstairs got too cold. We couldn’t be happier with SmartHouse!
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Scott R.
12/08/2024
				Marcus was very helpful and knowledgeable.
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Jai R.
11/22/2024
				Jeremy was my technician we started off a little rocky lol but he got the job done in a professional manner. I would recommend him
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lisa B.
11/22/2024
				SmartHouse Heating and Cooling is amazing. Starting with Marc the owner, he came out and was extremely knowledgeable and down to earth. He went the extra mile to explain the technology and equipment. The install team was very courteous and respectful. They were able to move quickly and efficiently to install a complex system. I am excited about my new system and can’t wait to take advantage of all the efficiencies. I can’t recommend SmartHouse Heating and Cooling enough.
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Brandon W.
11/16/2024
				Like this Company a lot. They installed my system 10 years ago and it didn’t need any major work until this year. They are responsive and efficient.
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Deirdre G.
11/16/2024
				On time, explained everything, found best option for our situation, installed new furnace quickly. Long relationship with Smarthouse has never disappointed.
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Dick B.
11/09/2024
				Very professional and knowledgeable. Zack kept me informed the whole time and asked if I had any questions. I would definitely recommend them to others.
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Jerome A.
11/09/2024
				Efficient, thorough, and very helpful service. I definitely recommend working with them and will be using them again in the future.
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Nikki O.
11/09/2024
				SmartHouse Heating & Cooling did an excellent job replacing our HVAC system. From the front office to the installation team, SmartHouse was professional, responsive, polite, efficient and a terrific value.
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Lisa B.
11/02/2024
				The Installation of a new furnace and AC unit was accomplished with professionalism, competency, and the highest level of craftsmanship. They had to first take out a 25+ year old system, and obviously all of the various lines, pipings and sheet metal ductwork we’re not about to line up with the more modern, compact and advanced system. But they reconfigured everything beautifully, on budget and on time. I recommend them highly.
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Bud C.
11/02/2024
				Outstanding service, very knowledge tech, I am very impressed and pleased.
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Ted D.
11/02/2024
				Smart house is rhythm with smart people, who know how to win and keep customers. Most of all they a very professional business. Wendell
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Wendell
11/02/2024
				They're proving to be pretty good
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Mike W.
10/24/2024
				Bryon was most helpful. He was very knowledgeable.
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GAILE A.
10/22/2024
				We just had our first experience with SmartHouse, and I feel so relieved! Nick H., our technician, was knowledgeable and kind and I would recommend him and the team to anyone looking for pros they can trust. It was an easy decision to become members! Thank you so much!
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Sarah B.
10/19/2024
				Good company. I've been using them for over 25 years
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Carol S.
10/19/2024
				Professional and knowledgeable. Earned my confidence and a call back!!!
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Kevin H.
10/18/2024
				Very professional service
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Tamsin M.
10/18/2024
				I have used Smarthouse for several years for my business and home. I have tried other national and local companies and this is the best. The technicians go above and beyond, the office staff is awesome, and I appreciate the thorough and practical explanations. I found them on google and tried them out because they were well rated and another local place was falling short on service and responsiveness. I am glad I did. Smarthouse has delivered time and time again with the quality of their service. As a business owner (and homeowner for that matter), having a company you trust is such a big deal. This place is a winner.
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Carly M.
10/18/2024
				Great job, Zach! Thank you! Mila
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velimila v.
10/18/2024
				The employees of SmartHouse are prompt and courteous. A couple of years ago we purchased our heating and air conditioning units from them and have been very satisfied.
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Alison L.
10/04/2024
				So glad this is our go to hvac co. Always pleasant experience with their reps.
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Roman P.
9/24/2024
				It's Saturday. I'm trying to install a new smart thermostat and blew a fuse. The technician was WONDERFUL and so helpful. They were faster, more helpful, and their rates are less than the company who installed the unit for the previous owner. I'll be calling SmartHouse for my HVAC needs from now own. Highly recommend! Thank you!!!
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Susan H.
9/20/2024
				Great guys, great service they showed fast on a Saturday. Would highly recommend
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brian h.
9/20/2024
				The tech fixed our capacitor issue with no problems. He was very professional and top notch. I found my HVAC company for the future!
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Joshua Z.
8/27/2024
				Very friendly, knowledgeable and highly professional service! 👏 👏!
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Vladimir M.
8/27/2024
				Showed up on time, gathered information and started the diagnostic . Found the problem , corrected the issue. I was kept abreast of every step taken to get my unit up and running . I truely appreciate their professionalism .
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Nathaniel D.
8/22/2024
				I was really impressed with the Technician, Jay. He diagnosed the problem and got my AC up and running! He was very professional and patient with me and my many questions!! thank you, Jay.
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Pauline T.
8/22/2024
				Fast response to emergency. Work was completed in record time.
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Norm O.
8/22/2024
				My tech Marcus was terrific, honest, educated me on my system, and worked without wasting time. I look forward to my winter maintenance with Marcus this fall.
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Dark &.
8/15/2024
				The team at SmartHouse are very knowledgable. What's more, I'm extremely impressed with their customer service. Our new Water Furnace geothermal unit was faulty, and recently failed completely. SmartHouse really jumped right to getting a new unit installed under warranty, as well as providing mobile AC units for our house until the new Water Furnace was ready. I highly recommend SmartHouse.
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b s.
8/08/2024
				My house AC had a miner problem. The company quickly solved the problem.
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Jane K.
7/30/2024
				I’ve gone to SmartHouse for home upgrades, regular seasonal maintenance, and now a repair involved in an insurance claim. They have been extremely responsive, easy to work with, and informative to me, the homeowner. Great company
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Nelson L.
7/27/2024
				I am so pleased with the service I always receive with SmartHouse heating and cooling company. I trust them with any work if needed on my furnace/ air conditioner. I would recommend them to the whole WORLD.
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Carrie H.
7/25/2024
				Always great service
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Dustin G.
6/05/2024
				If you want the very best in service, SmartHouse has the very best people that know what they are doing. No short cuts here. They are on time or a little early for appointments.
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Michael M.
5/08/2024
				Smart House is the best! Great and timely service. The staff knows their “stuff”!! Fair pricing for the excellent service they provide. We have been delighted with Smart House.
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Melissa W.
5/06/2024
				I called Smart house for a second opinion on some thing and boy am. I glad I did. They were able to save me thousands of dollars.
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Suzanne E.
5/01/2024
				Excellent HVAC System Replacement Experience - 5 Stars! I recently had the pleasure of engaging the services of SmartHouse Heating and Cooling for the replacement of my HVAC system, and I must say that the entire experience surpassed my expectations. Here's why I believe this company deserves 5 well-earned stars: Impeccable Installation: The installation process was carried out with remarkable expertise. The technicians were not only punctual but also conducted themselves with the utmost professionalism. They took the time to ensure that every aspect of the installation was executed with precision, leaving me confident in the longevity and performance of the new system. And explaining how everything works to an interested customer. Transparent and Detailed Quotes: The company excelled in providing detailed and transparent quotes. I truly appreciated the effort that was put into explaining every aspect of the quotes, ensuring that I was fully informed about the costs, the scope of work, and the timeline for the project. It's rare to find a company that prioritizes transparency to this extent, and it's definitely worth commending. Exceptional Customer Service: From the first point of contact to the completion of the installation, the customer service provided was nothing short of exceptional. Every interaction was characterized by attentiveness, responsiveness, and a genuine commitment to ensuring customer satisfaction. Overall, I can confidently say that SmartHouse Heating and Cooling has set a new standard for professionalism, quality of work, and customer service in the HVAC industry. I wholeheartedly recommend them to anyone in need of heating and cooling services.
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Nick H.
4/30/2024
				Awesome company and service!! Very impressed with their willingness to listen to our needs and situation and to tune their recommendation accordingly . We replaced our A/C and furnace - no issues. They were very prompt. Really appreciate Marc who clearly answered our many questions and appreciate his staff Stephanie, Liz and others who helped us with financing and scheduling. I fully recommend and trust this team.
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Shaun S.
4/30/2024
				Time for a check and clean. Gotta keep the systems going. Very efficient and timely service .
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Robert W.
4/30/2024
				I've used SmartHouse for years and recommend them wholeheartedly. They've always resolved my issues quickly and for less money than other contractors. I plan to entrust them with a major renovation of my AC system and furnace. They strike me as honest and efficient. I've only had great experiences with this company.
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William G.
4/23/2024
				Top notch company with top notch service. Highly recommend!
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Barbara L.
4/23/2024
				He was professional friendly and fast. Didn’t try to add stuff or spend money we don’t really have. Honest man . Will definitely call again for any repairs. Great company
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Jennifer M.
4/23/2024
				Ryan and his crew did a great job with the installation. Duct work was top-notch. Even helped with replacing a broken gas shutoff valve on my water heater while they were there. Very impressive!
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Tim V.
4/16/2024
				I couldn’t recommend SmartHouse more highly - they are thorough, reliable, and completely trustworthy. Special shout out to Bob Going, the best!
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Alison M.
4/07/2024
				Amazing company to work with. Everyone is friendly and accommodating, it shows that they care about their customers. Will recommend this company to anyone who will listen.
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Timothy G.
3/26/2024
				Great service. On time and professional. Technician was very friendly and knowledgeable
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Scott A.
3/23/2024
				A great experience in all respects. Marc came out and did a thorough assessment of our needs. Not the typical "let's sit down at the kitchen table" sales pitch. The proposal came later that same day, and Marc responded promptly and thoroughly to my follow-up questions. The day of the installation went smoothly. Marcus, George and Bob arrived exactly on-time. All three were courteous, professional and efficient. The installed work is neat and tidy and we couldn't be more pleased with our new HVAC unit. I highly recommend SmartHouse.
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Tom B.
3/20/2024
				Today had a non-stop screeching emanating from the furnace and Marcus was able to stop by and figure out what was happening, then fixed it!! This company and their staff are wonderful, kind, professional, and very responsive!! Best company!
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Linda L.
3/06/2024
				Smarthouse recently replaced an HVAC unit for us. We had a fantastic experience. They were very professional and did a great job. I highly recommend Smarthouse for your HVAC needs.
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David a.
2/28/2024
				Great product, great crew!
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Deborah D.
2/27/2024
				Great company, good communication, detailed quotes, and strong knowledge of modern eco-friendly heat pump systems - and did a helpful energy audit of my old brick home too. Strongly recommended!
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Joe J.
2/27/2024
				Been working with SmartHouse on various home improvement and remediation needs and they have always been helpful, professional and met our needs.
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Jason B.
2/27/2024
				Great company! From scheduling, estimate, to installation every individual was prompt and courteous. Very happy with our new HVAC system. We continue to use SmartHouse for maintenance and have never been disappointed. They will have our business for any future needs!
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Ryan M.
2/27/2024
				The workers did a fantastic job. Whitney also cleaned up after their work. I highly recommend SmartHouse.
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Suzanne L.
2/27/2024
				Very friendly was very upfront with what we needed . Would use them again if needed to
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Angela o.
1/28/2024
				Came out on New Year’s Day within 30 minutes of calling. Quickly identified the problem with our furnace and had it fixed in no time!
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Desiree
1/28/2024
				We returned to our house about 4pm yesterday (12/31/23) to find our furnance not working. SmartHouse answering service person was very polite and helpful, promising a call from a service technician within an hour. Scott called in about 30 minutes, we discussed the situation and he said he could be at the house in about 30 minutes. We both had guests due at our houses in a few hours for dinner. Scott was professional, knowledgeable, and polite as he diagnosed and resolved the issue. We could not be more pleased with the manner in which this issue was handled and resolved.
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Rich W.
1/28/2024
				Awesome customer service from the office to the technician
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Shari C.
1/27/2024
				I had a great experience with the technician Bob. He was courteous, knowledgeable and worked quickly. He swiftly had our boiler furnace back up and running during that horrible cold. This was my second time calling SmartHouse. My first experience with Luke, he was why we called the second time. Knowledgeable professionals with great sense of humors. Would highly recommend.
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Yolanda S.
1/27/2024
				Quick response and friendly.
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Jia L.
1/27/2024
				Great team. My house is 100 years old, and the electric system might be older. I’ve had these guys come out on Christmas to help me and my family, and they were there and fixed it, and were nice to boot. They do what they can, and they don’t invent problems for you to pay to solve. Very solid business, would use them again
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John W.
1/27/2024
				Service was great! Explained everything that was going on, made suggestions that were super useful! Very happy!
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Kasey M.
1/27/2024
				Service 24/7 The technicians are personable, knowledgeable and friendly.
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Minnakay R.
1/27/2024
				The. guy was very helpful acknowledgible. They're prices were extremely fair and Reasonable. I will definitely call them again if I need them.
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Ty P.
1/27/2024
				We had Smart House Heating and Cooling visit us in early Fall due to one of our outside units had already frozen over and we had conerrns going into Winter. Techs advised older unit should be replaced but we opted to get one more winter out of the unit. The unit hard frozen over in January and we needed a replacement ASAP. Tim came out and said he could help us and get job done before the next hard freeze came through. The crew arrived and were efficient and professional. The temperature dropped all day and the crew worked all day inside and outside for us. Great job and Thank you for all the work. We would recommend the company and crew any day.
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Brian B.
1/27/2024
				The Smarthouse folks have been nothing but splendid! Super responsive, respectful, and knowledgeable. I feel like they take my questions seriously and ensure that I understand all thats going on. They understand each rebate and tax credit and handled it for me. I have only had extremely lovely experiences and recommend them to all my friends.
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Sarah R.
1/27/2024
				The best in the biz! Called late in the evening for a broken furnace and Ryan was out in a couple hours. He diagnosed and fixed the problem in about 45 minutes and I had heat again. Highly recommend!
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Dan A.
1/27/2024
				He was adorable and , polite and business. I'm at a loss for words. I must keep this company and tell it on Facebook
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Susan B.
1/27/2024
				My boiler went out with the Polar Vortex on the way. They sent a service tech out within an hour. Problem fixed! Definitely recommend!
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mary d.
1/27/2024
				SmartHouse has been responsive, professional, knowledgeable, honest, and considerate every time we’ve worked with them on diagnosing problems and repairs. We recommend them highly, and will definitely use them when we’re ready to replace our system.
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Judy D.
1/27/2024
				Luke was very easy to talk and walked through the systems in our new house, 🏡. He was patient and did a thorough job. SmartHouse also called and arrived the next day for a maintenance call. Amazing! Will call back anytime they are needed. Everytime.
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Warren M.
1/27/2024
				The service man is very nice and professional!
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Brook D.
1/27/2024

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How Ductless Mini-Splits Can Save You Money on Energy Bills

How Ductless Mini-Splits Can Save You Money on Energy Bills. What if we told you there’s a way to stay cool in the summer, warm in the winter, and keep more money in your pocket? Ductless mini-split systems are the not-so-secret weapon for homeowners in St. Louis looking to lower their energy bills while boosting comfort. With advanced technology, ENERGY Read more...

January 31, 2025

Ductless Mini-Splits: Advantages for Older Homes

Ductless Mini-Splits: Advantages for Older Homes. Owning an older home in St. Louis comes with its share of joys and challenges. You get all the charm of unique architecture and vintage details—but when it comes to heating and cooling, old-school isn’t always cool. Drafty windows, uneven temperatures, and outdated systems can leave you sweating in the summer and piling on Read more...

January 29, 2025

When is it Time to Replace Your Attic System?

When is it Time to Replace Your Attic System? Your attic HVAC system is one of the unsung heroes of your home. In winter, it distributes warm air to keep you cozy, and in summer, it circulates cool air to counteract heat. While often out of sight, attic HVAC systems are essential for consistent climate control and contribute to energy Read more...

The Trusted St. Louis HVAC Contractor

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Improve Comfort

Energy Efficiency

Heating and AC Repair and Replacement in St. Louis

From AC Replacement & Furnace Repair to Zoning & Home Performance Services

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Award-Winning, Trusted Experts in St. Louis Home Comfort

SmartHouse is Available 24/7

Latest Blog Posts

How Ductless Mini-Splits Can Save You Money on Energy Bills

Ductless Mini-Splits: Advantages for Older Homes

When is it Time to Replace Your Attic System?

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