A patio door replacement in Montreal usually costs about ,000 to ,500 installed for a vinyl or hybrid sliding door, and ,500 to ,000 or more for a three-panel unit. French doors cost about 30% to 50% more than a slider of the same size. Bi-fold systems start around ,000 and can pass ,000. These are published market ranges from September 2026, not Factory Direct prices. A written quote after an in-home estimate gives your real price.
What a patio door costs installed, by type
Market range, Canada, September 2026 (not Factory Direct prices)
How much does a patio door replacement cost in Montreal?
Most Montreal homeowners replace a standard 6-foot, two-panel sliding door. Quebec contractor-directory data puts a vinyl (PVC) door at $1,000 to $2,000 installed and a PVC-aluminum hybrid at $2,000 to $3,500.2 A Canada-wide guide gives a similar picture: $1,800 to $2,800 for a standard 6-foot vinyl slider.1
The ranges below are what other sources publish. They are not our prices. Use them to check that a quote is in a normal range.
| Door | Installed range | Source |
|---|---|---|
| Sliding, 2 panels (Canada, any frame) | $1,500 to $5,000 | Reno Quotes, Sept. 18, 20261 |
| Sliding, 6 ft, vinyl (Canada) | $1,800 to $2,800 | Reno Quotes1 |
| Vinyl (PVC) patio door (Quebec) | $1,000 to $2,000 | Soumission Rénovation, Sept. 18, 20262 |
| PVC-aluminum hybrid (Quebec) | $2,000 to $3,500 | Soumission Rénovation2 |
| Aluminum (Quebec) | $2,800 to $5,400 | Soumission Rénovation2 |
| French or garden (Canada) | $2,500 to $6,000 | Reno Quotes1 |
| Telescoping, 3 panels (Canada) | $4,500 to $9,000 | Reno Quotes1 |
| Bi-fold or multi-panel (Canada) | $12,000 to $30,000+ | Reno Quotes1 |
| Bi-fold (Ontario installer blog) | $5,000 to $30,000+ | Magic Window, July 28, 20263 |
The sources do not agree on bi-fold doors. One puts them at $12,000 and up, another starts at $5,000. That gap is real. Width, panel count, frame material and glass explain most of it.
What changes the price of a patio door?
Size. A stock width is far cheaper than a custom one. A standard 6-foot vinyl door runs $1,800 to $2,800 installed, and the same opening in a custom width can pass $4,500.1 If your opening is close to a standard size, adjusting the framing is often cheaper than ordering custom.
Door type. Sliders cost the least. French doors cost 30% to 50% more.2 They also need room to swing. A sliding door needs none.
Number of panels. Each extra panel adds hardware, weight and install time. Wide openings may also need a stronger header.1
Frame material. Vinyl is the entry price. Hybrid and aluminum cost more. Aluminum gives slim frames and big glass, but it needs a thermal break to avoid frost on the frame in winter.1
Condition of the opening. Rot or water damage found when the old door comes out adds repair cost. Sources put it at $100 to $500 in Canada and $200 to $800 in Quebec.12
Vinyl, hybrid or aluminum: which costs what?
For a 6-foot door, Quebec data gives PVC at $1,000 to $2,000, hybrid at $2,000 to $3,500 and aluminum at $2,800 to $5,400 installed.2 At 8 feet the same source shows PVC at $1,800 to $2,800 and hybrid at $2,800 to $4,000.2
Vinyl suits most Montreal homes. It needs no painting and handles freeze-thaw cycles well.1 The vinyl patio doors we sell have an all-vinyl, multi-chamber frame with steel-reinforced sashes and a quick-draining sill sloped at 9 degrees. See the sliding patio doors page.
Which glass options add cost?
Double glass with a Low-E coating and argon gas is the baseline in Canada. One Quebec source lists it as a $150 to $400 extra on a basic unit.2 Triple glass adds about $300 to $800 in both sources.12 Blinds between the glass add $400 to $900.1
Standard glass on our vinyl patio doors is tempered Low-E with a low-conductive spacer. Triple glazing is available on one of the two models in that line.
A patio door is one of the largest glass surfaces in your home. Homeowners notice the comfort near a triple-pane door first, ahead of any change on the energy bill.1
What does installation add to the price?
Labour alone typically runs $500 to $1,500, depending on how complex the job is.1 A straight swap into a sound, square opening takes about 4 to 6 hours. A job with framing repairs takes a full day.1
Ask what the quote covers. These items are often left out or priced as extras:
- Removal and disposal of the old door: $50 to $150.1
- Sill and sub-sill work: a low or flush sill costs $300 to $800 more in Quebec data.2
- Extension jambs: $150 to $400 when the wall is thicker than the door frame.1
- Interior and exterior finishing: $200 to $800 for trim, drywall and cladding around the door.1
- Sidelights or transoms: $800 to $2,500, plus framing if the opening grows.2
- Brick-to-brick instead of insert: $300 to $900 more.1
Waterproofing matters most. Proper sill flashing and a sealed perimeter should be part of every professional install. A very low quote often skips them.1
Sliding, French, bi-fold or stackable: what is the difference in cost?
Sliding. The lowest price and the most common choice. No swing space needed. See our sliding patio doors.
French or garden. Hinged panels that seal well but need swing room. Plan on 30% to 50% more than a slider.2
Bi-fold. Panels fold to one side and clear almost the whole opening. Our bi-fold systems are fibreglass, with double or triple glass. Published lead times are 10 to 18 weeks, so order early. See bi-folding patio doors.
Stackable (multi-slide). Panels slide and stack inside the frame, in widths up to 12 ft for three panels and 24 ft for six. Wide openings need a structurally sound header. See stackable patio doors.
Still choosing a style? Read our guide to sliding, French or bi-folding patio doors.
Does Rénoclimat pay for a patio door?
Yes, for sliding glass patio doors. Under the rules in force since October 1, 2026, Québec treats sliding glass doors like windows. The aid is $300 per rough opening, up to $4,500 for a house and $6,000 for a duplex, triplex or multi-unit building.46
The rules to know:
- The door must be ENERGY STAR Most Efficient and listed in the Rénoclimat product list.4
- It must go into an existing rough opening. A new or widened opening does not qualify.4
- Replacing only the glass or only the sash does not qualify.4
- A contractor with the right licences must do the work.6 Keep the invoices and the ENERGY STAR stickers.4
- Hinged doors are a different case. The official comparison table lists “door replacement” as not eligible under the new rules.5 Ask a Rénoclimat advisor before you count on aid for French doors.
Files started before October 1, 2026 can still follow the old rules ($150 per opening) if the after-work evaluation is done by March 31, 2027.67 Read our Rénoclimat 2026 checklist. We checked these figures on québec.ca on November 12, 2026. Check again before you buy.
Should I repair or replace my patio door?
Repair when one part has failed and the door is under about 15 years old. Replace when the frame is bent or rotted, or when several parts fail at once.1
| Problem | Typical repair |
|---|---|
| Worn rollers (door sticks) | $150 to $400 |
| Weatherstripping and seals | $100 to $300 |
| Foggy glass (failed sealed unit) | $400 to $900 |
| One glass panel | $600 to $1,500 |
| New screen, full | $150 to $400 |
Source: Reno Quotes, updated September 18, 2026.1
A simple test: if the repair costs about half of a new door, replace. A new door buys 20 to 30 more years, current glass and a fresh warranty. A repair on a failing door buys a few years.1 A single-pane door should be replaced. It does not hold up to a Montreal winter.
Frequently asked questions
How much does it cost to replace a patio door in Montreal?
A standard 6-foot vinyl or hybrid sliding door runs about $1,000 to $3,500 installed, based on Quebec data from September 2026.2 Wider, custom or bi-fold doors cost more. Your exact price comes from a written quote after an in-home estimate.
What does an installed price include?
It should include the door, labour, removal of the old door, waterproofing and perimeter sealing. Trim, drywall, exterior finishing, extension jambs and rot repair are often extras. Ask for each line in writing.1
Is a sliding or French patio door cheaper?
A sliding door is cheaper. French doors cost 30% to 50% more in Quebec data, and need swing room.2
How long does a patio door replacement take?
The install takes 4 to 6 hours in a sound opening and about a day if repairs are needed.1 Stock vinyl sliders may arrive in one to two weeks. Custom and premium doors take 4 to 12 weeks.1
Does Rénoclimat pay for a patio door?
For a sliding glass patio door that is ENERGY STAR Most Efficient and goes in an existing opening, the aid is $300 per opening, within the $4,500 house cap.4 Check eligibility before you order.
Is it worth repairing a patio door?
Yes when one part has failed on a door under about 15 years old. Rollers and seals are low-cost fixes. Replace the door when the frame is damaged or repairs near half the price of a new one.1
Want a real price for your opening? Book an in-home estimate with Factory Direct Montreal. We have installed windows and doors across Greater Montréal for 35+ years. RBQ 5735-2130-01.
Sources
- Reno Quotes, Patio Door Installation Cost in Canada: 2026 Price Guide, updated September 18, 2026: renoquotes.com. Contractor-lead site; prices are estimates.
- Soumission Rénovation, Prix d’une porte patio au Québec : le guide 2026 (French), updated September 18, 2026: soumissionrenovation.ca. Contractor-lead site; prices are estimates.
- Magic Window, How Much Are Patio Doors? 2026 Cost Breakdown, July 28, 2026: magicwindow.ca. Ontario installer; used only for the bi-fold range.
- Gouvernement du Québec, Rénoclimat, Guide du participant (French), in force October 1, 2026, section 4.4 (sliding glass doors count as windows, $300 per rough opening, ENERGY STAR Most Efficient): quebec.ca (PDF). Seen November 12, 2026.
- Gouvernement du Québec, Rénoclimat, tableau comparatif avant/après October 2026 (French): quebec.ca (PDF). Seen November 12, 2026.
- Gouvernement du Québec, Rénoclimat, Nouveautés (French), updated October 13, 2026: quebec.ca.
- Gouvernement du Québec, Rénoclimat, Remplacer des portes et des fenêtres (French), updated October 13, 2026, old-rules table at $150 per opening: quebec.ca.
Related guides: Window replacement cost in Montreal · Front door replacement cost in Montreal
