How to hire a window company without getting burned
Window sales has a particular reputation, and it is earned honestly by a segment of the industry that runs on long in-home presentations and prices that mysteriously drop the moment you hesitate. None of that is required to buy good windows. Here is what to check instead.
Verify before anyone comes out
The license, in their name. Ask for the number and check it with your state licensing board directly rather than trusting a certificate they hand you.
Insurance sent directly by the carrier. General liability and workers' compensation both matter. If a worker is hurt on your property without comp coverage, that liability can land on you.
A real, checkable business history. A company that has been doing installs in your area for years has a paper trail. One that appeared recently under a new name does not, and that pattern is common enough in this trade to be worth checking.
One licensed, insured contractor in your area. Free, no obligation, and we never sell your information.
The tactics that should end the conversation
A price that gets lower the longer you hesitate or the more you say no. If the number can come down, it always could have. That is a negotiation tactic dressed up as a discount, not a real quote.
“This price is only good if you sign tonight.” A real number holds for at least a week. Urgency is what people substitute for a case that does not otherwise hold up.
A four-hour in-home presentation before you see a number. You are allowed to ask for the price and the specifics up front and end the appointment if you do not get them.
Energy-savings numbers that sound too good. Be skeptical of any pitch built around a large, precise annual dollar savings figure — real savings exist but they are modest, and an inflated number is a sign of a sales script, not an engineer.
What belongs in the contract
Scope specified per opening, not as a lump sum for “the house.” Full-frame or insert stated explicitly for each window. The flashing and installation method described, not just implied. A payment schedule tied to milestones rather than dates, with a deposit that is a fraction of the total, not half or more up front. Who pulls the permit, named. And the workmanship warranty term in writing.
None of this is an unusual ask. How a company reacts to being asked for it tells you more than their answer does.
The warranty question worth asking directly
There are two warranties and they get conflated on purpose sometimes. The manufacturer warranty covers defects in the window unit itself and usually prorates down over time. The installer's workmanship warranty covers the install — the flashing, the sealing, the fit in the opening — and that is the one that actually matters, because most window problems trace back to installation rather than a defective unit.
Ask specifically how long the workmanship warranty runs, what voids it, and whether it transfers to a new owner if you sell the house.
Common questions
Should I get more than one quote?
Two or three is enough if you compare installation method, flashing detail, and warranty terms rather than just the bottom line number.
Is the cheapest quote ever the right choice?
Sometimes, but find out why it's cheapest first. The gap is usually in the install method, the trim and finish work, or the warranty, not in some efficiency the lower bidder found.
How much of a deposit is normal?
A modest deposit to cover material ordering is standard. Anything approaching half the total, or full payment up front, is outside the norm and worth questioning.
Licensed, insured, five-plus years in the trade. One company per area — never a list of five.