Window replacement in Hamilton
Hamilton window replacement for warmer rooms and fewer drafts.
We replace drafty, fogged-up and sticking windows across Hamilton, Dundas, Ancaster and Stoney Creek with KV windows: ENERGY STAR® qualified and made in Canada to fit each opening. Casement, slider, double-hung, bay and bow are all available.
Canadian-built KV windows with ENERGY STAR® ratings
Every window gets Low-E glass and argon gas
A 10-year workmanship warranty on our installation
Local crews, no subcontractors, since 1969
1969
Family-owned,
same name since
10-yr
Workmanship warranty
on every install
6 mo
No interest,
no payments (OAC)
4.5 ★
Google RATING
Retrofit (insert) replacement
Installed inside your existing window frame. Ideal for:
A complete new window, set in the old frame
A quick install with minimal disruption
Spending less per opening
Solid frames in brick or stone homes
Full-frame replacement
Old frame out, new frame in. Ideal for:
Rotted or leaking frames
Sealing up drafts around the frame
Resizing, restyling, or adding a bay or bow
Aluminum capping to match, with a 10-year workmanship warranty
RETROFIT OR FULL-FRAME?
Retrofit or full-frame? For Hamilton homes, it depends on the frames.
If the frames are sound, a retrofit window fits inside the existing frame, saves money and keeps your trim. If they're rotted or you'd like a new size or style, we'll go full-frame. Either way, we look at each window before quoting.
FROM A GOOGLE REVIEW
Got my windows done by Desi's and could not have been more happy with the results! Would absolutely recommend them for any outdoor reno project.
Erin L.
Verified Google review
2025
We're a short drive away in Burlington and have been a family business since 1969. The installers who come to your Hamilton home work for us directly, carry full insurance and work under a Master Builders licence.
How It Works
How it works
You'll see a written price for every window before anything is ordered.
01
Within 1 business day
We get back to you
Tell us which windows are giving you trouble and we'll book a visit.
Usually the next day
We measure and quote
Every opening gets measured, we show you glass and style options, and you get a written price per window.
02
Once you approve the quote
We install
Windows are made to order, and you'll get a more accurate time frame once they're ordered. We cap, caulk and tidy up before we go.
03
FAQs
Window questions we get in Hamilton
Don't see what you're looking for? Ask us when we come to measure.
Retrofit or full-frame: which do I need?
If your existing frames are sound, a retrofit window is installed inside the existing window frame, leaving your trim in place, which is faster and less expensive. If the frame is rotted, leaking or you want to change the size or style, full-frame is the right call. We'll check each opening at the estimate and tell you honestly.
What do replacement windows cost?
Every window is custom-made for your opening, so the price depends on size, style, glass options and whether it's a retrofit or full-frame install. The estimate is free and priced per window so you can do a few at a time.
Are the windows energy efficient?
Yes. We install KV windows, custom-made in Canada and ENERGY STAR® qualified, with Low-E glass and argon fill as standard and a lifetime transferable manufacturer warranty. Most customers notice a difference in creature comfort, heating and cooling costs in the first year.
How long does it take?
Windows are custom-built after the estimate, and install time depends on how many windows there are and whether they're retrofit or full-frame. A more accurate time frame will be established once your windows are ordered, and we cap, caulk and clean up before we leave.
Do I have to replace every window at once?
No. Many customers do the worst ones first and the rest over a couple of years. We'll quote each window separately so you can decide, and discounts are available when you order multiple windows at a time.
How does the financing work?
Click the link below to see your financing options.
