One Hour Heating & Air Conditioning® of St. Louis
One Hour Heating & Air Conditioning is a premier HVAC service provider in the United States. We care about your comfort and respect your time, which is why we back all of our work with a 100% customer satisfaction guarantee for two years. Our team of experts is always on time, guaranteed, and we offer StraightForward Pricing with no hidden fees. We provide a range of services including emergency HVAC services, air conditioning, heating, furnace repair and installation, ductwork, and more. Our goal is to make your home feel like home, and we're here for you when you need us most.
We're here for you when you need us most, providing emergency HVAC services 24/7.
Our air conditioning services include repair, installation, and maintenance to keep your home cool and comfortable.
Our heating services include repair, installation, and maintenance to keep your home warm and cozy.
Our furnace repair services are designed to get your heating system up and running quickly and efficiently.
Our furnace installation services include expert installation and setup to ensure your new furnace is working properly.
Our ductwork services include installation, repair, and maintenance to ensure your HVAC system is running efficiently.
Our air quality services include testing, cleaning, and maintenance to ensure your indoor air is clean and healthy.
Our thermostat repair services are designed to get your thermostat working properly and efficiently.
- 100% Satisfaction Guarantee
We guarantee our materials, labor, and craftsmanship for up to two years from the date of your service.
- StraightForward Pricing
Before we start any work, we discuss your available options so you know exactly what you are getting and how much it will cost. No hidden fees!
- Always On Time
We understand your time is valuable, so we promise to arrive at your home within the predetermined time window that you select, or your service call is free.
“If I could I give i100 stars Eric was amazing. Explain everything to me and telling me the pricing and And checking out my unit for me I will be doing business when I need it. Thank you so much, Eric. wonderful person ask for Eric”
“I was amazed at the quick response to have my a/c unit serviced. Rob was very professional and knowledgeable. My a/c is running great now! I am a very, very satisfied customer!!”
“Smooth operators!! Get it DUNN right the first time! Call Dunn one hour! Fast service and installations !! Highly recommended A+”
“Our furnace waited until the coldest day of the year to quit and One Hour responded beautifully. Erik came out promptly and was very clear and direct in manner. He gave us a bid and bent over backwards to answer all of our many questions. The install team showed up, first thing this morning, and got busy. They finest up only minutes ago and the house is well on its way to being comfortable again. Fantastic work!”
“Great service and good people… Install looks great. Overjoyed to have air conditioning again.”
