Norman summers run AC units hard, and the second week of triple-digit heat is when tired systems quit. Whether you are in a historic home near the University of Oklahoma campus or a newer build out by Lake Thunderbird, here is what an HVAC replacement costs and how to claim OG&E rebates.
A complete 3-ton system (AC + furnace) typically runs $6,500–$11,000 installed in Norman (ZIPs 73019, 73069, 73071, 73072), including refrigerant lines, electrical, and warranty. Adding a heat pump runs $1,500–$3,000 more. The many older homes near OU and downtown Norman often need ductwork attention too, which a good contractor quotes separately.
Replace rather than repair when all three are true: the unit is 12+ years old, the repair quote tops $1,500, and it still uses R-22 refrigerant (now $150+/lb). If only one is true, repair is usually the smart call. A reputable Norman contractor quotes both so you can compare honestly.
Bigger is not better. A 2,000 sqft single-story Norman home typically needs a 3.5–4 ton unit; an oversized system short-cycles and leaves the house humid. Insist on a Manual J load calculation rather than a rule-of-thumb guess — especially important for the leaky older homes common in the OU student-rental belt.
A vetted local pro will quote both a tune-up and a replacement on the same visit so you can compare. Get a free HVAC tune-up or replacement quote →
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