Heating & cooling in O'Fallon, MO
O'Fallon has grown quickly since the 1990s, so much of its housing is subdivision homes built in the last few decades, many now reaching the age when roofs, water heaters and HVAC systems get replaced.
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What we see in O'Fallon
- Many builder-grade systems from the 2000s are reaching the age when they're commonly replaced. Ask for an honest repair-versus-replace comparison.
- Two-story homes often run warm upstairs. Ask about zoning, duct balancing or a variable-speed system.
- Ask whether the manufacturer warranty requires registration and regular maintenance, and who handles it.
Questions to ask a heating & cooling contractor
- Will you do a load calculation instead of sizing by square footage?
- Are you licensed where required and insured?
- What are the exact model numbers and efficiency ratings for each option?
- Will the indoor coil be replaced to match the outdoor unit?
- What's included: permit, thermostat, pad, line set and haul-away?
- What's your labor warranty, and how is the manufacturer warranty registered?
- Do any current utility rebates or tax incentives apply?