Compare the quote with what homeowners reported paying for the same kind of job, but only where the job’s scope is consistent enough for a comparison to mean something. Then check the scope line by line, read the terms (deposit, schedule, cancellation, permits), and ask the contractor to explain any gap. A price outside the middle range is a reason to ask, not proof of anything.
Start with what owners actually paid
The American Housing Survey asks homeowners what they spent on recent projects and whether they hired someone or did it themselves [1]. That gives a real distribution of paid prices rather than an estimate from a cost calculator. For a hired water heater replacement, owners reported paying $900 to $2,000 (median $1,400, n=1,786) for the middle half of jobs in the 2023 survey [1]. For central air conditioning, the middle half ran $4,000 to $9,700 (median $6,900, n=2,011) [1].
Survey dollars are from 2023, so casaq adjusts them with the Consumer Price Index (CPI-U) to today’s dollars before comparing [2]. A quote a little above the 2023 median can sit right in the middle once inflation is counted.
Make sure you are comparing the same job
Most big gaps between quotes are scope gaps. One roofer includes tear-off, new underlayment and flashing; another quotes an overlay. One water heater quote includes a permit, an expansion tank and haul-away; another does not. Before you judge the number, list what each quote includes.
- Materials: brand, model, size or grade, quantity.
- Labor: what is removed, replaced and repaired, and what happens if they find damage.
- Permit and inspection: who pulls the permit and whether the fee is included.
- Disposal and cleanup: haul-away of old equipment or debris.
- Warranty: the manufacturer’s, and the contractor’s own on labor, in writing.
The FTC suggests getting multiple written estimates that describe the work, materials, completion date and price, not automatically choosing the lowest, and asking for an explanation when estimates differ a lot [3].
Read the terms, not just the total
A fair-looking price can still come with terms that put you at risk. The FTC lists warning signs such as pressure for an immediate decision, a demand to pay everything up front or in cash, and a contractor asking you to pull the permits [3].
If the contract was signed in your home and the price is $25 or more, the federal Cooling-Off Rule usually gives you until midnight of the third business day to cancel, and the seller must give you two copies of a cancellation form [4][5].
“You, the buyer, may cancel this transaction at any time prior to midnight of the third business day after the date of this transaction.”
The rule covers sales of $25 or more made at the buyer’s residence (and $130 or more at temporary locations such as hotel rooms or fairgrounds), even when the buyer invited the seller. The seller must give a completed receipt or contract with that statement, plus two copies of a “Notice of Cancellation” form. It does not cover, among other exceptions, repairs or maintenance the buyer asked the seller to come and do (extra goods or services sold during that visit are covered again), or a bona fide emergency where the buyer signs a handwritten waiver.
What the law says, quoted from the official text. This is not legal or insurance advice; for your situation, ask your state’s insurance department, contractor board, attorney general or an attorney.
Some states also cap deposits. California, for example, limits a home improvement down payment to the lesser of $1,000 or 10% of the contract price [6].
“the downpayment shall not exceed one thousand dollars ($1,000) or 10 percent of the contract amount, whichever amount is less.”
On a California home improvement contract, the down payment is capped at the lesser of $1,000 or 10% of the contract price.
What the law says, quoted from the official text. This is not legal or insurance advice; for your situation, ask your state’s insurance department, contractor board, attorney general or an attorney.
Questions that explain a high number
- What exactly is included, and what would be an extra charge?
- Which brand and model are you installing, and why that one?
- Is the permit in the price? Who schedules the inspection?
- What is the payment schedule, and what work does each payment cover?
- What does your own labor warranty cover, and for how long?
- If you open it up and find damage, how is that priced?
A good contractor can answer all of these. A higher price with clear answers and a written scope can be the better deal than a low price with neither.
Run your quote through Quote Check
Enter the job, ZIP, price and deposit. Quote Check shows the survey distribution in today’s dollars (with a position only where scope is consistent), flags terms against the federal rule and the verified state rules on file, and lists the questions to ask.
Check a quoteSources
- U.S. Census Bureau, American Housing Survey (AHS) 2023, home improvement module (public use file). Retrieved 2026-10-05.
- U.S. Bureau of Labor Statistics, CPI-U, U.S. city average, all items (CUUR0000SA0). Retrieved 2026-10-05.
- FTC, “How To Avoid a Home Improvement Scam” (July 2022). Retrieved 2026-10-05.
- FTC, “Buyer’s Remorse: The FTC’s Cooling-Off Rule May Help” (September 2025). Retrieved 2026-10-05.
- 16 CFR Part 429, Rule Concerning Cooling-Off Period for Sales Made at Homes or at Certain Other Locations (eCFR). Retrieved 2026-10-05.
- California Business and Professions Code §7159.5. Retrieved 2026-10-05.
Information, not legal, insurance or engineering advice. Spot something wrong? Send a correction; accepted corrections are logged publicly with a date.