Replacing windows is a purchase you live with for decades. A few direct questions, asked before you sign anything, tell you more than a glossy brochure. This guide lists the questions, describes what a solid answer sounds like, and points out the warning signs.
Hideshaped Windows & Siding is a referral site, and the providers are independent businesses. The questions below apply to anyone you are considering, including providers you reach through the request form. Requests here cover window replacement and installation only, not repairs, and start at two windows.
Questions about the quote itself
Start with the paper. Ask for a written, itemized quote, and then ask these things:
- What is included: windows, labor, trim, and removal of the old units?
- Is the price for insert windows or full-frame replacement?
- Which brand, series and glass package is quoted for each opening?
- What happens to the price if rot or damage turns up behind an old window?
- How long does the quote stay valid?
A good answer names the product and lists the line items. A vague answer such as 'it depends' with nothing written to follow is a reason to slow down.
Questions about the installation
Most window problems trace back to installation, not the glass. Ask how the opening will be measured, how the window will be flashed and sealed, and where water is meant to go if it gets past the exterior.
This matters in a region with hot, humid summers and wind-driven rain from thunderstorms and tropical remnants. Moisture that gets into a wall cavity can sit there a long time, especially in older mill-era houses with original framing that may no longer be square.
A good answer is specific. You might hear about sill pans, flashing tape, sealant types, and checking the opening for rot before the new unit goes in. A weak answer is 'we just caulk it.'
Questions about the provider
You are allowed to ask who is actually doing the work and what paperwork backs them up.
- Will the installers be employees of the business or subcontractors?
- Can you see proof of the business license your town requires and a current insurance certificate?
- Who pulls the permit, if one is needed? Rules differ by town, so ask the provider and confirm with your local building office.
- Who is your point of contact if something goes wrong after the install?
Ask for these in writing. A provider with nothing to hide will usually send them without fuss.
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Questions about warranties and aftercare
There are usually two warranties: one from the manufacturer on the product, and one from the installer on the labor. They are not the same thing. Ask for both in writing and read what they cover and for how long.
Also ask what is excluded. Some warranties do not cover glass breakage, certain finishes, or damage from improper maintenance. Ask whether the warranty passes to the next owner if you sell the house.
A good answer points you to the document. A poor answer is a verbal promise with no paper.
What a good answer sounds like
You do not need to be an expert to hear the difference. Good answers tend to share a few traits:
- They are specific to your house, not a script.
- They include numbers, product names and written terms.
- They admit trade-offs, such as a cheaper insert unit versus a full-frame replacement that costs more but lets the installer see the framing.
- They leave you time to decide.
Red flags
Some patterns are worth walking away from.
- Pressure to sign today because a price will vanish tomorrow.
- A quote that is a single lump sum with no itemization.
- A large deposit demanded before any materials are ordered.
- Reluctance to put the brand, series or glass package in writing.
- No mention of what happens if rot is found.
- A price far below every other quote with no clear reason.
- Refusing to share license or insurance details.
One red flag is a reason to ask more questions. Several together are a reason to look elsewhere.
Compare quotes side by side
Get at least two or three written quotes and line them up. Make sure each one covers the same number of windows, the same type of replacement, and the same glass options. A quote that looks smaller is often missing trim, disposal or a better glass package. The comparison is only fair when the scope matches.
When you are ready, use the request form to describe your windows and start the conversation.
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