The Trusted St. Louis HVAC Contractor

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.

Great service. On time and professional. Technician was very friendly and knowledgeable

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.

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!

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.

Great product, great crew!

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!

Been working with SmartHouse on various home improvement and remediation needs and they have always been helpful, professional and met our needs.

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!

The workers did a fantastic job. Whitney also cleaned up after their work. I highly recommend SmartHouse.

Very friendly was very upfront with what we needed . Would use them again if needed to

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!

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.

Awesome customer service from the office to the technician

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.

Quick response and friendly.

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

Service was great! Explained everything that was going on, made suggestions that were super useful! Very happy!

Service 24/7 The technicians are personable, knowledgeable and friendly.

The. guy was very helpful acknowledgible. They're prices were extremely fair and Reasonable. I will definitely call them again if I need them.

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.

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.

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!

He was adorable and , polite and business. I'm at a loss for words. I must keep this company and tell it on Facebook

My boiler went out with the Polar Vortex on the way. They sent a service tech out within an hour. Problem fixed! Definitely recommend!

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.

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.

The service man is very nice and professional!

The best! Have been using them for years.

Excellent. My furnace died on Saturday. Contacted SmartHouse on Sunday. They called Monday morning and set up appt for Monday afternoon. Great consultation; good options; very good price. New furnace and AC installed Tuesday. Had a couple of problems but they worked through them very effectively. I am a very satisfied customer and would gladly recommend them. They did good work; cleaned up afterwards; answered all my questions; very professional. I’d give them a 10 out of 10.

Knowledgeable, professional, courteous and longer warranties.

The technician was courteous and helpful thank you

Great service. Fair price. Professional and friendly technicians

Great advice and super trustworthy

Technician Scott was very thorough.

Another great visit from Smarthouse, very polite, respectful of my home, covered his shoes! Did his job, and told me everything looks good, and left!

I have been frustrated with my HVAC people for years. Finally had it and put out some bids and Smarthouse was not only the best bid but sent genuine, experienced maintenance adults to deal with us. They didn't try to oversell us on a new system but gave us good information to help us decide. Office staff has also been great. Looking forward to the regular service.

On time and professional.

Technician was knowledgeable and friendly. Explained what the problem and how he fixed. Priced seemed reasonable

SmartHouse should be at the top of everyone's list when considering anything related to HVAC in their home. Their staff are experts in advanced and traditional HVAC technology. They take a diligent approach to every project, ensuring that systems are right sized for the home, rather than mindlessly doing a one-for-one replacement like some installers. Using building science, mechanical engineering, fluid dynamics, energy engineering, and thermodynamics to guide their recommendations, you can be assured that the options presented to you are well thought out. All staff were very professional, courteous, and responsive. Our old system died during the week of August 21st, 2023, when temperatures were soaring above 120 degree heat index. They were able to replace our 23 year old system with an ultra energy efficient Daikin heat pump within 2 days! All at an exceptional value. They have my absolute highest recommendation.

Writing a thorough review because it is what helped me to pick this company, and maybe it will help reassure others they are making the best choice. Earlier this year, my parents' AC started malfunctioning in the house I grew up in. With much else on their plates, I decided this was one thing I could help them with. With a decidedly subpar experience with a company sent out by their home warranty, I did some research and made a short list of local companies that seemed to have the best reviews. Smart House was on that list, and due to their clear pricing for a diagnostic evaluation earned our initial business. Matt came out to the house and did a thorough workup, explaining in detail that our system was low on a type of coolant that was expensive because it was no longer made, and that even refilling it wouldn't guarantee that it wouldn't leak out or that our aging system wouldn't go bad from something else shortly after. He took time to answer many questions in a way that was clear and understandable. Without any pressure whatsoever, he went ahead and took measurements for a potential replacement just to make sure things could proceed as quickly as possible when we decided what we wanted to do. He further answered questions about what to expect with newer units and what it would entail to replace it. My parents then independently got a couple more quotes on their way to deciding on an AC/Furnace replacement. By all accounts, Matt was the most professional of the specialists they encountered and SmartHouse and their bid were the most clear as well as best value. Even as we proceeded, the office staff was top-notch. Jane was able to answer questions as well as help navigate that while things started under my name, it was for my parents' house and to get their sign-off as well. They were able to fit us in for the replacement faster than expected. Matt and Luke replaced the furnace and AC in a full-day job. Even things we had been worried about were already well thought out and addressed- for instance, the furnace needing a new in/out vent that we didn't previously have which they placed in a discreet area with an appropriate cover. All this was done in mid August, just in time for our brutal heatwave, and I can say confidently the new system tackled it with ease. From beginning to end, SmartHouse was an extremely professional and friendly company to work with. Every step of the way things were explained with ease and never once did they make us feel pressured. They are a company I will use on my own house when needed and gladly recommend to others.

Excellent timely service .....as always Bob and Nancy Wagoner

Smart House did an amazing job on my complete HVAC replacement. They were easy to work with and responsive to my questions. I would highly recommend for anyone looking to have their system serviced or replaced.

Luke was very professional and explained in detail what he was going to do.

SmartHouse was well-recommended and well-reviewed, so I was happy to get them out to take a look at my system. The tech was very knowledgeable and picked up on issues that another HVAC company missed. I was promised a quote in 24hrs. A few days later, I emailed to check on the status and never got a response. Two phone calls to the main office were met with "we will look into this and get back to you shorty," but they never bothered to call back. So in the end, this has just been a big waste of time.

If I knew someone that need service, I would recommend this Company, No hassle and supportive 😇

Helpful, quick, comprehensive, honest. We are very impressed.

They did a 1st Class job. Thanks

Always professional and thorough. The Best

Our experience with Smart House has been wonderful! Luke is very professional, always responsive and highly knowledgeable. He answers any questions we have about our HVAC system. We strongly recommend Luke and Smart House for any of your HVAC needs.

Alerted us to a dirty filter cleaned up the condenser and left it cleaner than he found it. Right on time and always call to co firm. These people will do what is needed. No extra bills!

The SmartHouse Staff from start to finish is exceptional! I am beyond pleased with the timeliness and professionalism of the team. Thanks for the fantastic service. Cj You Rock!!

I decided to switch my HVAC service to SmartHouse Heating and Cooling. Luke came to the house to inspect our system and was not concerned about our barking dog - Gus! He was terrific with Gus! He was extremely knowledgable, through, and helpful. I was surprised because SmartHouse was the first HVAC company I’ve had who didn’t try to sell me something - I really appreciated that! I strongly recommend SmartHouse!

I had them come out to insulate some hard to reach areas in my knee wall space. They arrived promptly and were very professional. They missed a couple spots, but came back out to remedy the situation.

Checked out thermostat. Explained how thermostat works in summer humidity. Made plans for service of attic AC and condo AC when attic temperature cooler. Will observe thermostat and report operation when returns for service call. Very knowledgeable and explanatory. RGL

SmartHouse has always been courteous, professional, and provided honest service. We've been customers since 2015 and highly recommend them.

Marcus is a thorough professional and I am always glad when he is our service tech. Highly recommend.

George and Parker did a great job in explaining their duty and to reassure you that all is well making sure you are taken care of. Very respectful young men and I appreciate them. Keep up the good work you guys, thank you.

Matt was on time and was knowledgeable about explaining the maintenance of the system to me. I was very pleased with the service.

Luke was on time, professional, respectful, and efficient. He demonstrated complete knowledge of the systems he was servicing and explained his findings in terms that were easily understood. We could not have been more pleased.

Dave Essner is the BEST! He's been my technician for the past nine years, is efficient and friendly. I highly recommend Dave.

Good honest company and fantastic technicians. If you need someone who knows radiators Bob is your guy, there are not many people who have the knowledge he has on radiators these days.

We hired SmartHouse Heating & Cooling to add more insulation in our attic. They did great work and delivered it at a fair price.

These guys are always so great! Everything I need for my homes systems.

I've always been VERY impressed with my experiences at SmartHouse Heating & Cooling since I first started using them a few years ago! All of the staff is very friendly & knowledgeable, and all of the technicians are VERY PROFESSIONAL!! :)

Staff willing to work with me no matter how many times I have called

Every service encounter I have had with SmartHouse has been superlative, from the office staff to the maintenance guys, to the installation team. They do honest, thorough, excellent work. My connection with them has put me at ease with the HVAC systems and boiler in my house. They’re the best!

SmartHouse provides the best service in the business. Will never use anyone else

The Smart House team is fantastic! Marcus and Ryan provided great advice on service and replacement, were always on schedule, and did great work installing my new heat system

Matt and Luke were great!

Overall, a satisfying experience, but problems (though minor) not fully addressed. Also, quotes received do not appear to be as conveyed verbally; not all relevant quotes provided either.

SmartHouse replaced out AC and Furnace. They were professional, patient, and so helpful in selecting the proper unit for our house. They did a thorough inspection and were prompt in responding to all our questions. I would recommend this service to anyone who needs repair or replacement of HVAC. Thank you Ryan, Marc, and Stephanie for making this a smooth and easy process.

Luke and the other employees here did an awesome job. They were extremely helpful and saved me money. I will use them for future needs.

SmartHouse replaced our aging AC & gas furnace with a Daiken Air Heat Pump. The owner, Marc, assessed our situation and needs and was very informative, patient, thorough, and friendly. Tim, the energy auditor, joined Marc on a second call to look at what was needed to improve comfort in our home. We trusted what they recommended. The installation team lead by Ryan was friendly, professional, hard-working, and reviewed the use of the system before leaving. They also cleaned up before leaving and were patient with every question. We plan to purchase their service plan and continue using them to care for our new HVAC system. I would recommend them to others.

Professional installation

The follow up & customer service is great. The operations manager, service manager and sales manager are all fantastic. I had initially rated lower, but after receiving their follow-up and seeing their commitment to make things right for the customer I had to write a new review and rate 5/5. Would definitely recommend!

SmartHouse: SmartServiceman! I contacted SmartHouse about servicing my AC unit only to learn it would be a week before they had an opening on the calendar for me. The next day, I received a call letting me know that due to a cancellation, they could have someone at my home that afternoon. Marcus called me when he was 15 minutes out, and when he arrived, he immediately got to work. He explained a few things to me, made some helpful suggestions, made sure I had a clean filter, he even sprayed a wasp nest lurking around the window next to my front door, and he witnessed my Rottweiler repeatedly opening the door trying to see why we were standing outside of his garage. Marcus did what he needed to do to get the job done, and was on his way within about 35 minutes; he was very professional, knowledgeable and personable. I appreciated how informative and polite Marcus was with me, and I will personally request him as my serviceman each time I need to contact SmartHouse. Thank You, Jennifer!

This company is very professional and punctual. They get it RIGHT the first time. Highly recommended.

We found SmartHouse almost by accident while looking for solutions to what turned out to be botched previous AC installation by a much bigger and more established company who we had trusted to do a decent job. Instead we ended up with a system that wouldn't cool the house. Smarthouse first correctly diagnosed the problem, then fixed it, and advised us on how best to heat and cool our 100+ old house. We now have a service contract with them for regular maintenance and they recently installed a mini-split for us. Their techs are great. Just the sort of people we would feel comfortable leaving alone in the house to finish a job if necessary.

Scott and Luke installed a replacement HVAC for us a couple weeks ago. They were both very professional and knowledgeable. They were here on the stated time time each day and respectful of our home (wore masks, put protective booties on shoes, laid down floor coverings, etc). Great guys! Smart House has now installed a new HVAC for our upstairs as well as replace our downstairs. They are the only call we make for this service. Marc, the owner, stayed at our home for nearly 2 hours trying to brainstorm ideas to better heat and cool our home and got us a quote in less than 24 hours. Fantastic company.

I use SmartHouse Heating and Cooling for my heating and cooling systems They are a really great service to use, great customer service! They will make sure that everything is kept in great working order. The service representatives at the office are very courteous and helpful each time I schedule my appointments for a service. They will treat you like family!

While we didn't solicit many quotes for our attic insulation project, I couldn't imagine getting better service at a fairer price than we did with SmartHouse. The energy auditor was knowledgeable, patient in answering our many questions, and responsive to our goals of improving our energy efficiency. The installation crew was impeccable, professional, and courteous. They even returned a week later to fix something that wasn't even their fault -- at no charge. Now that's service. We're very pleased with their work and will likely hire them again for future HVAC work.

Everything was amazing from start to finish. Everyone was very professional and on time. Would highly recommend SmartHouse to anybody for their heating and cooling needs.

Very professional, tidy and on time.

We collected bids from SmartHouse Heating and Cooling to replace two HVAC systems in our home. They were by far the most responsive and took the time to explain their assessment and options. We wound up going with a Daikin variable speed system and feel we got a good rate on the systems. The office staff and service crew were great to work with. This company is not only experts in HVAC and smart home technologies, they could lead a course for other businesses on customer service! The new systems have been highly efficient - reducing our energy usage, lowering our power bills, and increasing our comfort.

I have nothing but great this to say about SmartHouse. They were able to take a stressful situation and turn it into a positive experience. I had met with multiple other contractors who either talked down to me, or just ignored my concerns outright. When discussing with Marc he confirmed my concerns and offered a creative solution to the problem. My new system is quiet, energy efficient, and is more effective than anything I've had in the past. The workers were on time, courteous of our home and friendly to talk with. I appreciate everything SmartHouse has done for me. Stop your looking now, you've found the industries best!

ryan q. did a graet job on chicking out our ac. and said it is in working order. he was on time. he was very polite. and very nice. hewore his mask and shoe covers.

Had a problem with an A/C unit not cooling 2 levels of house. Markus was the tech. Was right on time and was really outstanding. Knew exactly what he was doing, got to the issues quickly and didn’t try to pressure upsell me. Instead got the job done and made suggestions on how I can run my zone system more effectively. Absolutely glad I made that call.

It's been a year since we had SmartHouse install a new HVAC unit in our home. They moved the outdoor unit from right off of our deck (where it was super noisy) to the east side of our house. The new unit has a slim profile and is SUPER QUIET. Even better, our Ameren bill shows that we are using 18.7% less electricity over the past year . . . and our budget billing has decreased by $50 per month (and we expect another adjustment/decrease soon)! KNOWLEDGABLE, PROFESSIONAL team at SmartHouse; and the HVAC unit is EFFICIENT and BUDGET-FRIENDLY. Can't recommend them enough! (In fact, we used them this month to install HVAC equipment in our renovated office building in Maplewood).

First time using SmartHouse yesterday and we were very impressed! Their customer service is phenomenal and they were able to squeeze us in last minute for an AC repair. Very reasonable on the costs and the technician was knowledgeable, thorough, and friendly. Would highly recommend!