A clean, code-compliant window installation in Quebec takes 30–60 minutes per opening — but the prep and finish work make the difference.
Step 1 — Site Visit and Measurement
A qualified installer visits your home, measures every rough opening, photographs existing trim and finishes, and discusses style and glazing options.
Step 2 — Manufacturing and Lead Time
Custom UPVC windows are manufactured to your exact dimensions. Typical lead time at Unisson is 4 to 6 weeks during peak season.
Step 3 — Installation Day
- Protect floors and furniture inside
- Remove old window and clean opening
- Verify squareness and shim as needed
- Set new window, attach to framing
- Insulate the perimeter with low-expansion foam
- Install interior and exterior trim
- Caulk all external joints
Step 4 — Inspection and Warranty
The crew lead inspects every install, tests operation, and registers your warranty. Save the paperwork — rebate programs often require it.
Frequently Asked Questions
How long does each window take?
Standard installations take 30 to 60 minutes per opening — large picture windows take longer.
Can I stay home during the install?
Yes — most homeowners do. Expect dust during demolition.
Do I need to be ready for re-painting?
Modern installs include trim and caulking, but interior painting touch-ups are sometimes needed.