Saint-Constant · village core to Montée Saint-Régis
Windows and doors in Saint-Constant
Made to the opening in your wall
New windows or doors in Saint-Constant, ordered from the factory to your measured openings and installed by our own crews.
- ★ 4.5 · 484 Google reviews
- RBQ licensed
- Free in-home estimate
- 9,200+ projects · 35+ years
- Canadian-made, ENERGY STAR-certified windows
- Installed by our own crews
- Rénoclimat paperwork done with you, up to $300 per eligible window
★★★★★“Excellent customer service and flawless install. Windows came out amazing.”Marco S., Google review, September 2026
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- ★ 4.5 · 484 Google reviews
- RBQ 5735-2130-01
- Free written quote
- 9,200+projects across Greater Montréal
- 35+years installing windows and doors
- 4.5★average Google rating
- RBQlicensed contractor 5735-2130-01
What a Saint-Constant house asks of its windows and doors
Saint-Constant counted 29,954 residents in the 2021 census, up 10% since 2016, according to Centris. The built-up part of town sits around two centres, the old village on rue Saint-Pierre and the commuter station. Farmland still covers about four-fifths of the territory.
Four homes in five are single-family
The town’s 2017 urban plan, using 2011 national household survey data, puts single-family homes above 83% and owners at 85%. That data is older than 2020, so we treat it only as the shape of the town. It tells us that most of our visits are to detached houses where one owner decides everything.
Two thirds of homes pre-date 1991
The same plan says 67.7% of dwellings were built before 1991. Its notes place the oldest lots near the east end of the Route 132 corridor, with houses from the early 1960s. After that age, sealed units fog and wood sashes swell, so the estimate starts with a check of every window.
The village core has houses from the 1920s
The plan describes the village core as the south end of rue Saint-Pierre, from the Canadian Pacific tracks along the river. Many buildings there date from the 1920s. The city’s heritage inventory lists streets such as rue Saint-Pierre, rue Saint-Roch and montée Lasaline.
Farmhouses on the rangs
The heritage list also names farm buildings on rang Saint-Pierre, rang Saint-Régis and rang Saint-Simon, some from the late 1800s. Their openings are often tall and uneven. We measure each opening on site and order the unit to that size, never to a catalogue size.
Does Saint-Constant require a permit to replace windows and doors?
The answer depends on the room and the sector. We read the city’s permits and certificates by-law and its PIIA by-law on 12 November 2026. Here is what each says.
A same-size window swap needs no permit, with two limits
Article 37 of the permits and certificates by-law 1789-22 (version of 30 September 2025) frees minor upkeep work from a permit. Its examples include replacing glass, bay windows or windows that keep the same dimensions. The window must not be in a bedroom. The building must not be in a heritage zone or under PIIA.
Bedroom windows and doors are not on that list
A bedroom window needs the city’s approval even at the same size. The by-law’s examples name windows only, so a door swap is not covered by the list. If your door replacement is also in a heritage zone, ask before you order.
Heritage buildings follow the PIIA by-law
The PIIA by-law 1532-17 (administrative codification of 7 April 2021) applies to buildings in its annex C when a repair or renovation changes the outside look in any way. Its criteria ask the windows to respect the style and era of the building. Decorative muntins are encouraged when the style allows. Several sector criteria steer façade doors and windows away from white. The text may have been amended since 2021.
One question settles it
Send the city’s urban planning department your address and the size of each opening. Ask if the lot is in a heritage zone or PIIA sector and if each opening is in a bedroom. Attach our quote, which lists every opening with its size and type.
WindowsuPVC and hybrid, triple-pane, double Low-E glass
Front entry doorsSteel or fiberglass, with decorative glass options
Patio doorsSliding and stackable patio doors
Garage doorsInsulated garage doors, installed with the restHow we serve Saint-Constant
Montée Saint-Régis and the west side
24 km and 25 minutes from our Saint-Laurent showroom, without traffic. This is our shortest drive in town. Houses here sit close to farmland, and a detached house often has a wide rear patio door.
Rue Lanctôt and the village core
26 km and 28 minutes. The village core and its oldest lots are near here, so we ask for the lot number before the visit. We bring frame and glass samples that match older façades.
The station district and Exporail
27 km and 31 minutes. The city plans denser housing around the station. Condo owners send us the syndicate’s contact first, because a board can fix window colour and style.
Saint-Constant is 24 to 27 km from our showroom
Our crews leave 1190 Rue Bégin in Saint-Laurent and cross to the South Shore by bridge. The times are OpenStreetMap routing to each named place, rounded, with no traffic.
- Montée Saint-Régis, west side24 km · 25 minDirections
- Rue Lanctôt and the village core26 km · 28 minDirections
- Exporail, rue Saint-Pierre27 km · 31 minDirections
- Gare Saint-Constant27 km · 31 minDirections
A few recent projects
How your project runs
- Free in-home estimate
An estimator measures every opening and checks the frames.
- Written quote
Products, finishes and installation work, confirmed in writing.
- Installation by our crews
Our own installers do the work, covered by the 25-year transferable warranty.
- Rénoclimat
We prepare the paperwork with you, up to $150 per eligible opening.
“Excellent customer service and flawless install. Windows came out amazing.”
Marco S., Google review, September 2026
Questions Saint-Constant owners ask
Do I need a permit to replace windows in Saint-Constant?
Not for same-size windows in a building outside any heritage zone or PIIA sector, if the window is not in a bedroom. That is the city’s by-law wording in article 37. Anything else, ask the city with your address.
What if the window is in a bedroom?
The city treats bedroom windows apart from other windows. Ask for the permit first. We can give you the size and the opening type for the form.
What about the old village on rue Saint-Pierre?
The oldest part of the village core is under a PIIA that checks renovations. It reviews the look of the building from the street. Ask the city before you order, and keep your original window pattern in mind.
Can you match a window to my older house?
Yes. We measure the opening on site, order the window to that size and match the type, such as casement or double-hung. We show you frame colours and grille patterns at the estimate.
Does Québec help pay for new windows in Saint-Constant?
Yes, for new Rénoclimat files. The quebec.ca page updated on 13 October 2026 says $300 per window, up to $4,500 for a house. Duplexes and triplexes go to $6,000. Work done after 1 October 2026 by a licensed contractor qualifies.
Get your free Saint-Constant estimate at home
We measure at your home and send a written quote.
Sources
- Ville de Saint-Constant, Règlement sur les permis et certificats no 1789-22 (version du 30 septembre 2025)
- Ville de Saint-Constant, Règlement sur les PIIA no 1532-17, codification administrative du 7 avril 2021
- Ville de Saint-Constant, Plan d’urbanisme no 1527-17 (version du 4 mars 2026)
- Ville de Saint-Constant, Patrimoine bâti (liste non exhaustive)
- Centris, statistiques immobilières Saint-Constant (recensement 2021)
- Gouvernement du Québec, Rénoclimat: nouveautés (page mise à jour le 2026-10-13)