Prices by window type
| Type | Installed, each |
|---|---|
| Slider | $500–$1,000 |
| Double hung | $500–$1,000 |
| Casement | $500–$1,000 |
| Awning | $500–$1,000 |
| Picture | $500–$1,500 |
| Tilt and turn | $800–$1,500 |
| Bay or bow | $3,000–$5,000 |
A second Ontario supplier, updated August 2026, prices vinyl units before installation from $220–$350 for a small slider up to $1,680–$2,630 for a large bay — which shows how much of your invoice is labour and trim rather than the window itself.
Whole-house totals
| House | Windows | Total |
|---|---|---|
| Small 2-bedroom | 15–20 | $12,000–$18,000 |
| 3-bedroom bungalow | 17 | $12,835–$17,365 |
| Medium 3-bedroom | 20–25 | $15,000–$22,000 |
| Two-storey 3-bedroom | 23 | $18,870–$25,530 |
| Large 4-bedroom | 32 | $24,415–$33,035 |
| Large two-storey | 30–40 | $25,000–$35,000 |
Retrofit or full frame — which am I being quoted?
This is the question that makes two quotes comparable, and most homeowners never ask it.
Retrofit (also called insert) keeps the existing frame and fits the new window inside it. Faster, cheaper, less mess — and it loses a little glass area because the new frame sits inside the old one.
Full frame, sometimes called brick-to-brick, removes everything back to the rough opening, which lets the installer see and fix rot, re-insulate the gap and re-flash properly. It costs more and it is the right call when the old frames are soft, when there is water damage, or when the house is being resided anyway.
A cheap quote and an expensive quote often differ by nothing but this. Ask both companies which method they priced.
What about the rebate?
Ontario’s Home Renovation Savings program, run by Save on Energy with Enbridge Gas, lists windows and doors at $100 per rough opening, available in a bundle only. The larger money in that program sits elsewhere: up to $7,500 for a cold climate air source heat pump, $1,250 for attic insulation, up to $7,700 for an insulation bundle.
If your goal is a warmer house rather than new-looking windows, that ranking is worth reading twice. Attic insulation is usually the cheapest comfort per dollar in an Ontario home, and it has its own rebate line.
Check the program page yourself before you buy. The page does not publish an end date, and eligibility conditions change.
Red flags in a window quote
| What you see | Why it matters | What to do |
|---|---|---|
| Method not stated | Retrofit and full frame are different jobs at different prices | Ask every company to write which method they quoted |
| Price per house, not per window | You cannot compare, and adding or dropping a window becomes a negotiation | Ask for a per-opening price list with sizes |
| Door-to-door sale with a same-day discount | Windows are one of the most aggressively sold home products in Ontario | Never sign at the door. A contract signed at home can be cancelled within 10 days |
| Rebate presented as guaranteed | The bundle condition and eligibility rules are easy to miss | Read the Save on Energy page yourself before paying a deposit |
| No mention of capping, trim or caulking | Exterior capping and interior trim are where cheap installs are visibly cheap | Ask what the outside and inside will look like when finished, in writing |
| Warranty described as “lifetime” | Glass seal, hardware, frame and labour usually carry different terms | Ask for the years on each, separately |
Frequently asked questions
Not for like-for-like replacement in an existing opening. A permit is needed when the opening changes size, when a window becomes a door, or when the work affects structure. Heritage districts have their own approvals.
Triple glazing adds cost and weight and improves insulation. Whether it pays back depends on your heating system, the exposure of each wall and how long you will stay. Ask for pricing both ways rather than accepting one option.
Retrofit fits a new window inside the existing frame: cheaper, faster, slightly less glass. Full frame removes everything to the rough opening, which allows rot repair, re-insulation and proper flashing, and costs more.
Home Renovation Savings pays $100 per rough opening for windows and doors, available only as part of a bundle with other upgrades. Larger rebates in the same program go to heat pumps and insulation.
Most standard windows cost $500 to $1,000 installed in 2026. Picture windows run to $1,500, tilt and turn to $1,500, and bay or bow windows $3,000 to $5,000 because of the structural work involved.
Roughly $12,000 to $18,000 for a small home with 15 to 20 windows, $15,000 to $22,000 for a medium three-bedroom, and $25,000 to $35,000 for a large two-storey with 30 to 40 openings.
Sources
- Canadian Choice Windows, Replacement windows cost in Canada, updated 12 May 2026 — windowscanada.com
- TH Windows & Doors, Window replacement prices in Toronto, updated 18 August 2026 — thwindowsdoors.com
- Save on Energy, Home Renovation Savings program page — saveonenergy.ca, checked 18 September 2026
Prices are published ranges collected on 18 September 2026, not quotes. Rebate terms change — confirm on the program page.
More Carpenter Bee guides
Keep reading
Ontario permits up to three units on most house lots with no rezoning and no development charges. The Building Code numbers that decide whether your basement qualifies.
Installed central air prices in Ontario, the refrigerant rules explained correctly, and the line set, electrical and permit costs that move the number.
Blown-in attic insulation costs $1,800 to $3,200 for a typical Ontario attic, and the province pays back $1,250 of it. Per dollar, nothing else makes a house warmer.
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