What an HVAC replacement costs in Memphis
Two bids on the same house can sit thousands apart, and greed is rarely the explanation — they price different work. In this city the gap usually hides in the same four places: the sizing, the ducts, the water path, and whether anyone measured anything before writing a number.
The lines that move the number
Equipment tier and efficiency move the sticker visibly, and efficiency earns more respect here than a national brochure assumes — a long cooling season multiplies every rating point by more running hours. Underneath that sit the quieter divergences. Whether a load calculation was performed at all, because « same size as the old one » inherits every mistake the old install embodied. Whether the ductwork is assessed and its repairs priced — and in Memphis that means finding out first whether yours runs overhead in an attic or underfoot in a crawl space, because the work and the cost differ completely.
Then the finishing lines that separate an installation from a delivery: the refrigerant line set replaced or properly flushed and tested rather than reused on faith; the condensate path rebuilt with a float switch, and a secondary pan under any attic equipment; electrical verified against the new unit; the old refrigerant recovered legally; the permit named; and commissioning — charge and airflow set by measurement, numbers left in writing. Two bids listing different subsets of that list are not two prices for one job.
Reading the spread
Put the quotes side by side against those items and the mystery usually dissolves: the cheap one reuses the lines, guesses the size, and never mentions the ducts or the drain. That is not a discount on the same roof over your head — it is a smaller job, on precisely the parts that decide how the next fifteen summers go.
Two habits make the comparison honest. Ask every bidder the same three questions so the answers line up: what size does the load calculation give, what happens to the ductwork, what does commissioning include. And get the permit named with the licence that carries it — Tennessee licenses contractors at the state level and local jurisdictions add their own requirements, so a bidder vague about paperwork has answered a different question than the one you asked.
Quick answers
- What is the most commonly skipped expensive line?
- The ductwork. Whether it runs through a hot attic or a damp crawl space, sealing and repairing it costs real money and is exactly what a thin bid omits — so the new system inherits the old losses on day one.
- Does the brand of equipment matter much?
- Less than almost everything around it. The same unit installed with a measured charge, verified airflow and sealed ducts, or without, performs like two different machines and ages on two different clocks.
Every house is its own arithmetic — size, ducts, foundation, access. Use this page to read quotes, not to predict your number without one.