Get matched with top thermostat installers and replacers in Lake Saint Louis, MO

"This company goes above and beyond! Very professional and honest. Matt replaced my AC and furnace and did a fantastic job. I will definitely be using them again for all my service and maintenance."

Looking for reliable HVAC service in St. Louis? Aire Serv of St. Louis is your local expert for residential and commercial heating and cooling. From emergency AC repair during humid Missouri summers to furnace maintenance before the winter chill, our professional technicians are available to keep your home comfortable. We pride ourselves on transparent, upfront pricing, no overtime charges, and the "Done Right Promise." Whether you need a system replacement, duct cleaning, or a routine tune-up in Fenton, Webster Groves, or Kirkwood, we are the team you can trust. Breathe easy with Aire Serv—your comfort is our top priority. Call us today to schedule your service!

FixPro is a locally owned and operated handyman service proudly serving St. Louis, St. Charles, Lincoln, Warren, Franklin, and Jefferson Counties. We specialize in high-quality home repairs, carpentry, drywall, painting, flooring, deck repair, and general maintenance—handling everything from small fixes to larger improvement projects with precision and professionalism.\n\nWith years of hands-on experience across construction, maintenance, and service industries, I built FixPro to deliver what most contractors don’t: clear communication, reliable scheduling, and work done right the first time. We show up when we say we will, diagnose issues properly, and provide straightforward solutions without cutting corners.\n\nOur approach is simple—treat every home like it’s our own. We focus on clean workmanship, long-term durability, and customer satisfaction. If you want it done right the first time, FixPro is ready.\n\nNeed Something Fixed? Hire a Pro.

"Clint replaced steps on our deck. He was very efficient and they turned out great! Would definitely use him again!"

For more than 60 years, ARCO Heating & Cooling has been the local HVAC company that residents and businesses turn to for their heating and cooling needs. What began as a small business has grown into a cornerstone of the St. Charles, St. Louis, & Illinois communities, providing dependable service designed to keep our neighbors comfortable year-round. As a family-owned, local HVAC company, we’re more than just a service provider—we’re part of the community. We live and work right here in the St. Charles, St. Louis, & Illinois Metro areas, so we understand the unique climate challenges our neighbors face. This local connection fuels our dedication to providing personalized service and dependable solutions that make life easier for our customers.

At M2 Connected Homes, our mission is to provide cutting-edge security & smart home solutions tailored to the unique needs of modern homeowners. We believe that every home deserves a secure environment without compromising on style and functionality.\n\nWhole Home Audio/Starlink Installation/Wi-Fi/Cameras\n\n

"I have had nothing but perfect experiences with Missouri Furnace and Air Conditioning. They installed my boiler heater furnace in 2006 and my air conditioning unit in 2009, and I have used them ever since for the maintenance and service on both. Their customer service personnel are so nice and they get your service call scheduled very promptly. If there is any sort of emergency they will arrange to get a technician to your house the same day if at all possible. The knowledge and expertise of the service technicians is top of the line, and the technicians are always willing to fully explain the work that they are doing in terms that I can understand. Missouri Furnace & Air Conditioning is a truly exceptional company and I would never trust the care of my heating and cooling systems to anyone else. I give them my highest recommendation!"

"The service was excellent! They arrived to pick up the vehicle a day earlier which was great. They delivered the vehicle right to my daughter's door and found a side street to unload. The service was delivered within the time frame given. All of my questions were answered via phone or email and the paperwork was seamless and the price was very reasonable."

"He went with me to get a replacement faucet and he gave me the guidelines and then just let me choose what I wanted to go with. He did a great job and I am very pleased."

"Excellent! Jason believes in quality as well as a good price. He's organized, reliable, knowledgeable & explains things well. He inspects everything, including proper ventilation prior to installation & again inspects the work in progress to ensure we have a roof that lasts. We were very impressed with his crew. They showed up on time, were polite & worked steadily like an organized assembly line. They finished the job in one day & cleaned up the site perfectly."