
Installation Method
Retrofit Window Installation
Insert-style replacement. Existing frame and exterior brick mould stay put. New triple-pane unit drops in — typically in under an hour per opening.
Why Retrofit
Fastest, cleanest path to new windows.
If your existing frames are sound, retrofit installation gives you the full energy and noise benefits of a new triple-pane unit without disturbing the brick mould, exterior trim or interior casing. Less labour, less mess, lower cost.
- 30–60 minutes per opening
- No exterior or interior finishing required
- Same triple-pane Cardinal IG glass packages
- Lower cost per opening than brick-to-brick

Our Process
Four steps, typically under an hour per window
Measure inside the frame
We measure the daylight opening — width, height and squareness of the existing frame stays in place.
Remove old sash & glass
Operable sash, stops and old IG unit come out. The original frame remains.
Insulate the gap
Low-expansion foam between the new unit and the existing frame, plus backer rod where needed.
Set & seal
New unit is mechanically fastened, then sealed inside and out with paint-grade silicone.
Most full-home retrofit projects finish in a single day. No exterior repainting, no interior re-casing, no drywall touch-ups.
FAQ
Frequently Asked Questions
Free Quote
No-obligation quote on retrofit installation
We'll inspect every frame on-site and confirm whether retrofit, brick-to-brick or hybrid is the right method for each opening.
- Detailed project assessment
- Written itemized quotation
- Product and installation recommendations
- Financing options available
Get Your Free, No-Obligation Quote
Tell us a little about your project and we'll get back to you. Takes under a minute — no pressure, no pushy calls.
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