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Trim includedPrice per opening

Window and door replacement, from rough opening to trim

We measure, order to size, install with a tight seal and redo the trim inside and out.

Request a quoteTurnkey renovation
Living room with new windows and a sliding patio door

West Island, Montreal and Laval

The windows and doors we replace

Windows

  • We measure every opening before ordering
  • We install PVC, hybrid or aluminum windows
  • We insulate and caulk the perimeter, inside and out

Patio doors

  • We replace 5, 6 and 8 foot patio doors
  • We check the floor and the sill under the threshold
  • We add a header if the opening gets wider

Entry doors

  • We install steel, glass and double entry doors
  • We adjust the threshold, hardware and weatherstripping
  • We redo the interior casing and exterior trim

Basement egress windows

  • We enlarge the opening in the concrete for a bedroom
  • We install the window well and connect the drainage
  • We meet the exit size the building code requires

How we replace your windows and doors

  1. Visit and measuring

    We measure every opening and check the condition of the existing frames.

  2. Price per opening

    You get a written price for each window and each door.

  3. Custom order

    Units are built to your dimensions, then delivered to the site.

  4. Sealed installation

    We remove the old unit and install membrane, foam and sealant.

  5. Finishing

    We redo the casing, the exterior trim and the paint as needed.

Insert replacement or full-frame replacement

There are two ways to replace a window. We pick one after checking the frame and the sill.

  • Inside the existing frame · faster and leaves the walls untouched, if the frame is sound.
  • Down to the rough opening · we remove the whole frame to inspect, insulate and redo the seal.
  • Enlarged opening · we add a header, and the city then requires a permit.
  • Foggy sealed unit only · if the frame holds up, replacing the glass unit may be enough.
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New window being installed over a membrane on the sill

Questions about window and door replacement

The price depends on size, material, glazing and installation. A PVC window set inside the existing frame costs less than a hybrid installed down to the structure. We price each opening in writing.

Several Montreal boroughs require one, even for a same-size replacement. Enlarging an opening or cutting concrete always does. We check your city's rules before we order.

PVC insulates well and costs the least. Hybrid adds aluminum cladding outside, which is stiffer and comes in more colours. Aluminum is mostly used for large glazed areas.

Triple glazing insulates better and blocks more noise, but it is heavier and costs more. It pays off mostly on the north side or in a bedroom on a busy street.

A window that opens from the inside without tools, with a clear opening of at least 0.35 m² and no side under 380 mm. The window well in front must leave enough room to get out.

Windows or a door to replace?

We come measure your openings, then you get a written price for each one.

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5.0

What our clients say

5.0 out of 5 · 11 Google reviews

See the reviews on Google
  • « Excellent contracteur. Ils ont fait mes planchers et autres projets et nous sommes très satisfaites. Je recommande 100%. »
    Mélina Desbiens
  • « L'expérience client au cœur des services de Dilamco Construction ! »
    Jean-Philippe Hébert