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Full services directory How it worksFor prosAbout Get matched Call (866) 582-8523Whether your windows are actually done, how to force three incomparable quotes into a comparable format, and how to survive a two-hour in-home appointment without signing anything.
Window replacement means removing an existing window and fitting a new one — either as an insert, which reuses the sound original frame, or a full-frame replacement, which takes the opening back to the studs. Most homes need it because of rot, hardware failure or persistent drafts rather than age alone. The hard part is not the work; it is comparing quotes that are deliberately built to be incomparable.
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Decide whether it is really all of them
Almost every quote you get will be for the whole house, because that is where the crew economics work. Walk the house yourself first and mark which windows have an actual failure and which ones are simply old.
Watch for: A quote priced only as a whole-house package with no per-window figure. If six windows are failing and eight are fine, you are entitled to a number for six. A company that will not price six is telling you something.
Measure and note each opening yourself
Width, height, and whether the interior trim, exterior trim and sill look sound. You are not producing an order — you are producing a list that every quoting company has to price against the same way.
Watch for: Salespeople who take their own measurements and never show them to you. You want your list and their list on the same page.
Get three quotes, and force them into the same shape
Insist on: per-window line items, the exact product line (not just the brand), the glass package, the NFRC U-factor and SHGC numbers, whether each opening is insert or full-frame, and labour warranty stated separately from product warranty.
Watch for: A single lump sum with a brand name at the top. That is not a quote, it is a price. Two lump sums cannot be compared, which is why they are given as lump sums.
The in-home appointment
Expect two to three hours for the national in-home sellers. There will usually be a presentation, a demonstration, a retail price, and then a smaller price contingent on signing tonight.
Watch for: A price that expires when the salesperson leaves your house. Every legitimate quote survives 48 hours. The "today only" number is a negotiating structure, not a discount, and it is the single clearest signal to stop and get another quote.
Contract, deposit and lead time
Windows are made to your openings, so there is a manufacturing lead time between signing and installation — commonly several weeks. Deposits are normal; very large deposits are not.
Watch for: A contract with no completion window, no per-opening schedule, and no statement of what happens if a unit arrives damaged or mis-sized. Re-orders happen; who pays for the delay should be written down before it does.
Installation day and final payment
The crew that arrives is often not the crew that sold you. Confirm before install day who is doing the work, whether they are employees or subcontractors, and who carries the labour warranty.
Watch for: Paying the balance before you have operated every sash and lock yourself. Final payment is the only leverage you have left, and the install-quality checks are quick.
Whole-house window replacement is commonly quoted in the five figures, and per-window pricing varies enormously with frame material, glass package, insert versus full-frame, and your metro. Those variables move the number more than the brand does, and each one is broken out in the cost guide.
See the full window replacement cost guide — by material, size and region →
Everyone else ranking for this is paid when you say yes. Here's when you shouldn't.
Insert vs full-frame, double vs triple pane, vinyl vs wood — the decisions that move the price.
Repair or replace, DIY or pro, budget or premium — worked through failure by failure.
Vinyl, wood, fiberglass and aluminium, compared without a manufacturer’s thumb on the scale.
How long will the appointment take, and can we agree a hard stop now?
Two to three hours is normal for the national in-home sellers, and length is part of the method — decision fatigue is the point. Naming a stop time at booking changes the dynamic before anyone is in your living room.
Will the quote be itemised per window, in writing?
The single most useful thing you can ask. Without per-window line items you cannot compare two quotes, cannot drop the four windows you do not need, and cannot tell what a change order should cost later.
Which exact product line is this, and what are the NFRC U-factor and SHGC numbers?
Every major manufacturer sells several tiers under one brand name. "It’s Andersen" or "it’s Pella" tells you nothing about the unit. The NFRC label numbers are the only spec that is comparable across brands.
Is each opening quoted as an insert or a full-frame replacement?
They are different jobs at different prices, and one quote can quietly be one while another is the other. It also matters structurally: an insert leaves the existing frame in place, so if that frame is water-damaged the new window hides the damage rather than fixing it.
What does the labour warranty cover, for how long, and who honours it?
Product and labour warranties are separate documents and separate lengths. Most window failures homeowners actually experience are installation failures — leaks and drafts — which the product warranty does not touch.
Is this price still available in 48 hours?
The one question that ends the "today only" structure. Ask it plainly and note the answer. Every honest quote survives two days; a price that does not was inflated so it could fall.
Will your own employees install, or a subcontracted crew?
Neither answer is disqualifying — plenty of excellent installs are subcontracted. But you should know who is coming, and whose insurance and warranty applies when something goes wrong.
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