Red brick townhouse with new white windows and a white front door, snow on the front steps

Côte-des-Neiges and NDG · Snowdon to Loyola

Window and door replacement in Côte-des-Neiges and Notre-Dame-de-Grâce

Plexes, brick homes, walk-ups and condos, replaced the right way. We measure every opening at your home and give you a written quote you can show your co-owners or the borough. 9,200+ projects across Greater Montréal, 35+ years.

  • ★ 4.5 · 484 Google reviews
  • RBQ licensed
  • Free in-home estimate
  • 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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Certifications: Window Wise certified dealer, SAWDAC, ENERGY STAR, CSA, 25-year transferable warranty

  • 9,200+projects across Greater Montréal
  • 35+years installing windows and doors
  • 4.5★average Google rating
  • RBQlicensed contractor 5735-2130-01

What this borough’s buildings ask of a window

The borough had 78,515 households in the 2021 census. Of those, 73.8% rent. Apartments in all building types are 91.4% of occupied homes, and two in three homes (66.9%) are in a duplex or a building under five storeys. Single-family houses are 8.6%.

Plexes and walk-ups: one building, several decisions

In a duplex or a small walk-up, the owner chooses the windows and the tenants live with them. If you own the building, you can replace every window in one project. For a duplex, a triplex or a multi-unit building, Quebec’s Rénoclimat cap is higher than for a house.

Brick walls and back stairs

If your plex or walk-up is brick, the new frame has to sit right against the masonry. Our window catalogue lists a 5 3/4 in frame with an integrated brick-mould. Ask us to check the sill and the brick-mould at the estimate. Outdoor back stairs also mean the rear windows and doors need their own measurements.

Houses are rare, so the few that exist stand out

Côte-Saint-Antoine has the borough’s highest share of single-family homes, at 25.0% of its housing. If you own one of these houses, the same permit rule applies. The borough permit counter confirms whether your address sits in a significant sector.

Condos and apartment towers: the syndicate decides

Montréal asks for a letter from each co-owner or a resolution of the condominium syndicate. A syndicate may require one window style for the whole building. Ask the syndicate for the approved colour, grid and opening type before the estimate.

Do you need a permit to replace windows or doors in Côte-des-Neiges–NDG?

Yes, according to the borough’s information on montreal.ca (updated 30 July 2026). Check at the borough permit counter before you sign a contract. The counter is at 5160 boulevard Décarie, suite 100.

A permit for same-size replacement

The City’s page for this borough says you must get a permit to replace exterior doors and windows with models of the same dimensions. The review fee is $9.80 per $1,000 of work. The minimum is $167.40 for a purely residential building. Taxes are included and the fee is not refundable.

Sliders and the “significant” sectors

The borough page says sliding windows are not permitted in so-called significant sectors. It does not list which streets those are, so call the permit counter with your address. If your plans include sliders, ask first.

Heritage sectors and PIIA

If your project needs a site planning and architectural integration review (PIIA), plan for extra fees and extra time. The PIIA review fee is $248 for exterior work that replaces an architectural feature of a significant building or a building in a significant sector. It is added to the permit fee.

The documents the borough asks for

A quote or cost grid with taxes. Your certificate of location. The manufacturer’s data sheet. Recent colour photos of the façades touched by the work and of your immediate neighbours’ façades. In a condo, a letter from each co-owner or a syndicate resolution. A different size of opening is a different permit: see the City’s page for new or resized openings.

What we replace in Côte-des-Neiges and NDG homes

How we serve Côte-des-Neiges and NDG

Snowdon and Côte-des-Neiges

9 to 10 km and 12 to 14 minutes from our Saint-Laurent showroom, without traffic. Apartment buildings and condos are common here, so bring your syndicate’s approved window style to the estimate.

Notre-Dame-de-Grâce and Monkland

11 to 12 km and 15 to 17 minutes. Plexes and walk-ups are common here. We measure each opening, front and back, and quote the whole building in one document.

Loyola and Côte-Saint-Antoine

About 11 km and 17 minutes. This is where the borough’s houses are. Hampstead, next door, has its own page with local details.

Côte-des-Neiges and NDG are 9 to 12 km from our showroom

We drive from 1190 Rue Bégin in Saint-Laurent. Distances are measured on OpenStreetMap roads, rounded, with no traffic.

A crew carries a new white window into a brick building (top), and fits a door at the back of a brick building with an iron outdoor staircase (bottom).
A crew carries a new white window into a brick building (top), and fits a door at the back of a brick building with an iron outdoor staircase (bottom).

How your project runs

  1. Free in-home estimate

    An estimator measures every opening and checks the frames.

  2. Written quote

    Products, finishes and installation work, confirmed in writing.

  3. Installation by our crews

    Our own installers do the work, covered by the 25-year transferable warranty.

  4. Rénoclimat

    We prepare the paperwork with you, up to $150 per eligible opening.

4.5★★★★★484 Google reviews

“Excellent customer service and flawless install. Windows came out amazing.”

Marco S., Google review, September 2026

Questions Côte-des-Neiges and NDG owners ask

Do I need a permit to replace windows in NDG or Côte-des-Neiges?

Yes, according to the City’s page for the borough: a permit is required even for same-size replacement. The fee is $9.80 per $1,000 of work, with a $167.40 minimum for a residential building. Get it before you sign, since the borough reviews the models you plan to install.

Can I install sliding windows in my building?

Not in the borough’s so-called significant sectors. To know if your building is in one, ask the permit counter at 5160 boulevard Décarie. If it is, we quote casement, single-hung or double-hung windows instead.

What if my building is a condo?

You need a letter from every co-owner or a resolution of the syndicate. The syndicate may also set the colour, the grid and the opening type. Get those rules in writing, then book the estimate.

Can I change the size of a window?

A different size is a different process. Montréal requires a permit in every borough to change the size of an existing opening or add one. Light and ventilation standards for the room apply. We measure first, then tell you if your plan stays inside the same opening.

Is there a government grant for new windows?

Quebec’s Rénoclimat program pays up to $300 per window. The cap is $4,500 for a house and $6,000 for a duplex, a triplex or a multi-unit residential building. It applies to new files since October 1, 2026, and conditions apply. See quebec.ca for the latest rules.

Book your free in-home estimate in Côte-des-Neiges or NDG

We measure at your home and send a written quote.

Get my free quote(514) 387-0001
Sources
  1. Ville de Montréal, Remplacer des portes et des fenêtres par des modèles de mêmes dimensions (borough Côte-des-Neiges–Notre-Dame-de-Grâce block; page updated 2026-07-30)
  2. Ville de Montréal, Faire approuver un projet lié à un PIIA (borough CDN-NDG block; page updated 2026-01-20)
  3. Ville de Montréal, Permit counter Côte-des-Neiges–Notre-Dame-de-Grâce
  4. Ville de Montréal, Ajouter des portes et fenêtres ou les remplacer par des modèles de différentes dimensions (page updated 2026-01-31)
  5. Ville de Montréal, Profil des ménages et des logements, Côte-des-Neiges–Notre-Dame-de-Grâce (census 2021 custom data)
  6. Gouvernement du Québec, Rénoclimat: new measures since October 1, 2026 (page updated 2026-10-13)