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618- 476-9604
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WELCOME
We make every effort to perform our work in a prompt, professional manner up to industry standards and codes. Our expert technicians are trained and knowledgeable in the installation and service of all major brands of heating and air conditioning systems. We are proud of our hard-earned reputation and honest, ethical work practices. DOW has been serving our area for 30 years. That means we have provided tens of thousands of repairs and thousands of new system installations. Customer satisfaction is our primary goal. Give us a text or call today!
618-476-9604
Service/Repair
When you need General Heating, Air Conditioning and Ventilation HVAC) services, trust the experts at DOW Heating & Air Conditioning. Our technicians have the knowledge, skills, and tools to fix most General HVAC problems at the time of the service call.
When your DOW Heating & Air Conditioning tech arrives at your home or business, they will explain all of your options before starting repairs so you can make informed decisions before any work begins. We service and repair most brands of equipment, so you can trust us to perform a professional Heating and Air Conditioning repair.
We're not happy until you're happy.
Installations
Our Promise to you is to Perform the correct Heating, Air Conditioning and Ventilation (HVAC) installation at a fair price.
When you need HVAC services, trust the experts at DOW Heating & Air Conditioning. Our technicians have the skills, expertise, and tools to install complete HVAC systems usually in one day.
When your NRG Heating & Air Conditioning technician arrives at your home they will explain all of your options before starting repairs so you can make informed decisions before any work begins. We service and repair most brands of equipment, so you can trust us to perform a professional General Heating job.
We're not happy until you're happy.
Residential
When your HVAC system breaks on the day a 90-degree heatwave (or a single-digit polar vortex) rolls in to our area, you can feel secure knowing that DOW Heating and Air is here to repair and HVAC problem or even install a new HVAC system. We take the comfort of our clients seriously, which is why we offer emergency repair service for HVAC issues. We are often able to accommodate you with a same-day appointment and fix your problem in a matter of hours. DOW Heating and Air is here for all of your HVAC needs. We provide repair and service of all makes and models of a variety of heating and air-conditioning equipment.
Commercial
Let’s face it, commercial HVAC is complicated stuff. Owners, facility manager and even the tenants of commercial buildings have a slew of responsibilities. Apart from managing staff and serving customers, they have an obligation to the actual structure and all its components – they need to make sure it stays in good shape. Failure to maintain and identify commercial HVAC system issues can lead to loss of income, and loss of clientele in some cases. If you’re a business owner or facility manager in the St. Louis Metro area and you’re looking for commercial HVAC help, look no further than DOW Heating and Air for all your needs. Our qualified technicians have years of commercial HVAC experience. we promise a minimally disruptive, charmingly educational experience.
Highly recommend DOW Heating and Air Conditioning!! Duane was very nice and answered all of my questions when I called to schedule my appointment. He even had a technician at my house within two hours of me calling, which was very impressive since everyone is extremely busy these days! The young gentleman that came to our house was very nice as well, and he fixed our heater in no time! Very thankful for the both of them! My kids are now happy and warm! DOW Heating and Air Conditioning has a life long customer in me!
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Krista M
My furnace broke about a month ago. Mr. Dow and his son came over and had to get parts from collinsvile to repair my problem . The two of them spent most of the day to repair my problem . They were extremely reliable and provided excellent help. I am VERY grateful for their competent and caring service , especially since it was in this very cold spell!!
I highly recommend them (6 stars).
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Richard J
Serving the entire Metro East and Monroe and Randolph Counties
Baldwin Belleville Caseyville Chester Collinsville Columbia Coulterville Dupo East Carondelet Ellis Grove Evansville
Fairmont City Fairview Heights Fayetteville Floraville Freeburg Fults Hecker Lebanon Lenzburg Maeystown Marissa Mascoutah Menard Millstadt Modoc New Athens New Baden O'Fallon Paderborn Percy Prairie Du Rocher Red Bud Rockwood Saint Libory Sauget Scott AFB Shiloh Smithton Sparta
St. Louis Metro Areas St. Louis Metro East Steeleville Swansea Tilden Valmeyer Walsh Waterloo