Costs

Get install quotes the smart way

Most HVAC review sites hand you a lead form and call it done. We'd rather give you the leverage first: the exact questions that separate a fair quote from a bad one, so any quote you get — from us or anywhere else — gets checked against something real.

Ask every contractor these five things

  1. Ask for the AHRI matched-system certificate. This proves the indoor and outdoor units are certified as a matched pair, tested together for the SEER2/HSPF2/AFUE rating on the label. A mismatched system can run well below its rated efficiency and may void the manufacturer warranty — and it happens more than buyers expect when a contractor swaps in "whatever's on the truck."
  2. Ask for a Manual J load calculation. The industry-standard method for sizing equipment to your actual home — not a rule-of-thumb guess based on square footage. An oversized system short-cycles and dehumidifies poorly; an undersized one can't keep up on the coldest or hottest day of the year. A contractor unwilling to run one is a red flag.
  3. Get the exact model numbers in writing — then verify them yourself. A written quote should name the specific indoor and outdoor model numbers, not just "a 16 SEER unit." Once you have them, look the models up in our database to see the certified efficiency and computed running cost yourself, rather than taking the brochure's word for it. Look up model numbers in our database →
  4. Ask who pulls the permit — and confirm it actually happens. Most jurisdictions require a permit and inspection for HVAC replacement; skipping one can complicate a home sale or an insurance claim later. A legitimate contractor pulls it as a matter of course and can tell you the permit number once it's filed.
  5. Get an itemized quote: equipment vs. labor vs. extras. A lump-sum number hides where your money is actually going. Ask for equipment cost, labor, permit fees, and any electrical/ductwork/refrigerant-line work broken out separately — it's the only way to compare two contractors' quotes apples-to-apples, and it's the only way to spot if one of them is padding a line item.

Check your numbers before you sign

Is my heat pump quote fair?

Enter your quote and system size and see your real $/ton against the published national marketplace average for ducted vs. ductless systems.

Check your quote →

Repair or replace?

Run the 50% rule and the $5,000 rule against your own repair quote and system age — see the math, including when the two rules disagree.

Run the numbers →
Coming soon: we're working on integrating a vetted install-quote network so you can request competing quotes directly from this page. It isn't live yet — we're telling you that plainly instead of putting up a lead form that goes nowhere. Until then, the checklist above and the two tools give you real leverage whether you find your contractor here or on your own.

Frequently asked questions

Can I just buy HVAC equipment online myself?

For some equipment, yes — DIY mini-split heat pumps, and a growing list of ACiQ, Bosch, Goodman, LG and Thermo Pride furnaces and central-AC condensers, are sold factory-charged with a real price and cart at retailers like HVACDirect and Lowe's. But buying the box is only part of the job: a full split-system install still involves electrical work, permits, and (for anything with refrigerant lines) brazing and charging by a licensed technician. Most buyers who buy the equipment online still hire their own installer for that part — which is normal, and often cheaper than a bundled contractor price since you're not paying equipment markup.

Is a vetted quote-matching service coming to this site?

We're working on integrating a vetted install-quote network so you can request competing quotes directly from this site. It isn't live yet — we'd rather tell you that plainly than fake a lead form that doesn't go anywhere. Until it launches, the checklist above is the best tool we can give you: the same questions a knowledgeable buyer would ask, whether you find your contractor through us or on your own.

How many quotes should I get before choosing a contractor?

Three is the common rule of thumb — enough to see the real range in price and approach without dragging the process out for weeks. If the quotes vary wildly, that's usually a sign to ask the outliers (high or low) for the itemized breakdown above before deciding.

Equipment-only DIY purchase is legal for the buyer under EPA Section 608 (which restricts bulk refrigerant sales, not equipment) — but a full split-system install still involves electrical work, permits and, for anything with refrigerant lines, work a licensed technician has to do. See our methodology for how the rest of the site's cost figures are computed.