If you’ve never replaced your windows before, the process can feel like a black box. How long does it take? What happens on installation day? Will your house be torn apart? The good news: with a professional company, window replacement is an organized, predictable project. Here’s exactly what to expect, step by step, so there are no surprises.
Step 1: The free in-home consultation and quote
Everything starts with an accurate measure. A representative visits your home, discusses your goals — comfort, efficiency, noise, looks, budget — and measures every opening precisely. This matters enormously on older GTA homes, where openings are rarely square or standard.
You’ll talk through window styles (casement, hung, slider, and combinations), glass packages, colours, and finishes, and you’ll get a written quote. A good quote is itemized and clear, with no vague “measure later” caveats. This is also the time to ask about rebates, warranties, and financing.
Step 2: Final measurements and custom manufacturing
Once you approve the quote, a detailed technical measure confirms the exact specifications for manufacturing. Because quality windows are built to order for your specific openings, there’s a lead time between ordering and installation while your units are manufactured. Your installer should give you a realistic timeline up front.
Step 3: Preparing for installation day
Before the crew arrives, there’s a little prep on your side:
- Clear the area around each window, inside and out — move furniture, take down blinds and curtains, and remove anything on the sills.
- Create a clear path for the crew to work and carry materials.
- Plan for pets and, if you like, kids to be out of the work zones.
Your installer will confirm the date and give you an arrival window.
Step 4: What happens on installation day
This is the part homeowners worry about most, and it’s usually smoother than expected. Here’s the typical flow:
- Arrival and walk-through (30–60 minutes). The crew introduces themselves, confirms which openings are being replaced, and protects your floors and furnishings with coverings.
- Removing the old windows (1–3 hours). Old units come out carefully, one opening at a time, so your home is never wide open.
- Installing the new windows (several hours). Each new unit is set, leveled, insulated, and secured to the opening.
- Sealing and trim work. The crew weatherproofs and caulks the exterior and finishes the interior trim, addressing minor drywall or plaster touch-ups as needed.
- Cleanup (30–60 minutes). Old units and debris are hauled away and the work areas are swept or vacuumed.
- Final walk-through and sign-off. You inspect the work with the crew leader, confirm everything operates smoothly, and ask any questions.
Most single-family homes with a standard number of openings — say 8 to 15 — are completed in a single day by a skilled crew. Larger projects or specialty units may take two days. Homeowners across Etobicoke and the GTA are often surprised how quickly a whole-home window replacement wraps up.
What can affect the timeline
A few factors influence how long your project takes from start to finish. The manufacturing lead time is the biggest one — because quality windows are custom-built to your openings, expect a few weeks between approving the quote and installation day. On installation day itself, the number of openings, the age and condition of the home, and the weather all play a part. Older homes with settled, out-of-square openings or specialty shapes take a little longer per window because the crew has to fit and seal each one carefully. Very large projects or homes needing structural repair around an opening may run into a second day. A good installer sets clear expectations at the quote stage so nothing on the day is a surprise.
Step 5: After the install
Once the job is done, keep your paperwork — the invoice, product specs, and warranty documents — together in one place. If you’re claiming a rebate, you’ll need proof of professional installation and the ENERGY STAR product details. And enjoy the immediate difference: a quieter, warmer, draft-free home.
Tips for a smooth project
- Choose a company with its own trained crews rather than subcontractors, for consistent quality and accountability.
- Ask about the warranty and who honours it — materials, sealed units, parts, and labour.
- Schedule with the season in mind. Booking earlier in the year avoids the fall rush, when calendars fill quickly ahead of winter.
- Keep the lines of communication open — a good installer keeps you informed from quote to sign-off.
The bottom line
Window replacement doesn’t have to be stressful. With an accurate measure, custom-built units, and a professional crew, most homes are transformed in a day or two — with your floors protected, your old units hauled away, and a final walk-through to make sure everything’s right.
Ready to start? Browse our replacement windows and book a free, no-obligation consultation. You can also learn more about our team, and ask about the free triple glass upgrade and no payments until 2027 available now.
Frequently Asked Questions
Most single-family homes with 8 to 15 openings are completed in one day by a skilled crew. Larger projects or homes with specialty units may take two days. There’s also a manufacturing lead time between ordering and installation because quality windows are built to order.
Clear the area around each window inside and out — move furniture, take down blinds and curtains, and remove items from sills. Create a clear path for the crew, and plan to keep pets and kids out of the work zones. Your installer will confirm the date and arrival window.
No. A professional crew removes and replaces windows one opening at a time, so your home is never left wide open. They also protect your floors and furnishings with coverings during the work.
It shouldn’t be. A good crew protects your interior, works opening by opening, and hauls away the old units and debris. Cleanup and a sweep or vacuum of the work areas are part of the job, followed by a final walk-through.
Windows can be installed year-round, but booking earlier in the year avoids the fall rush when installation calendars fill quickly ahead of winter. Planning ahead also gives time for custom manufacturing and any rebate paperwork.