Montreal egress window installation for a legal basement bedroom

An egress window is the code-required escape a basement bedroom needs — an opening big enough to climb out of and for a firefighter to climb in.

Every opening measured on-site

Full air-seal on every unit

Written frame + sealed-glass warranty

A legal basement bedroom, a way out

To make a basement bedroom legal in Montreal, code requires a compliant egress window — an opening big enough for an occupant to climb out and a firefighter to climb in — usually paired with a window well outside. It is the difference between a safe, rentable bedroom and one an inspector will fail and an insurer will question.

We size the opening to the current building code for clear width, height, area and sill height, then cut and frame the enlarged hole in the foundation and install the window sealed against water and cold. The unit is usually a casement window or a sliding window sized to the escape rules.

That brightens a dark, unusable basement into safe, rentable space — an extra bedroom or a legal suite. It pairs well with a basement window replacement elsewhere, and our free in-home measure confirms exactly what your project needs.

Four steps from free measure to sealed install

Book the estimate

Call, text or use the form. We book a free in-home visit — no obligation, no high-pressure sales table.

On-site measure

We measure every opening, check the frames and sills for rot or water damage, and walk through material, style and glass options in plain language.

Written quote

Line-item quote with the window line, glass package, U-factor, warranty and haul-away on one page. Financing attached when you want it.

Install, cleanly

Drop cloths, boot covers and a full air-seal on every unit. Old windows hauled away and a walkthrough of your new windows plus warranty registration.

Code-sized opening, a dry window well

We cut and frame the enlarged opening, install a code-sized egress window, and set the exterior window well with a proper gravel base and drainage so it stays dry instead of funnelling water at your new opening. Drainage and waterproofing matter as much as the window itself in Montreal spring melts.

The written quote covers the window, the well and the waterproofing as one job, handled by one crew and backed by warranty — no coordinating a separate excavator and glazier yourself. See our full window installation services, a related basement window replacement, or book a free measure to get started.

Montreal egress window installation, answered

Code sizes, legal basement bedrooms and the window well.

What size does an egress window need to be?

An egress window has to meet the local building code minimums for clear opening — a minimum openable area, a minimum width and height, and a maximum sill height above the floor — so an adult can escape and a rescuer in gear can get in. The exact numbers are set by code and depend on the application, which is why we size and confirm the opening to the current requirements rather than eyeball it. We handle the enlargement of the foundation opening to hit those numbers, so the finished bedroom passes inspection.

Do I need an egress window for a basement bedroom?

Yes — a legal basement bedroom in Montreal requires a compliant egress window, and a renovation or secondary-suite permit will be held up without one. Beyond the paperwork, it is simply the right safety call: it gives anyone sleeping downstairs a second way out in a fire and gives firefighters a way in. Even if you are not creating a bedroom, adding egress to a basement is a smart upgrade for safety and resale. We will tell you exactly what your project needs to meet code.

Do you handle the window well and digging?

Yes — we handle the whole job, not just the glass. We cut and frame the enlarged opening in the foundation, install the code-sized window, and set the exterior window well with a proper gravel base and drainage so it does not fill with water in a spring melt. Where excavation or waterproofing is involved we coordinate it so it is done right and sequenced correctly. One written quote, one crew responsible for the window, the well and the waterproofing — so it is watertight and to code when we leave.

Do I need a permit for an egress window?

Enlarging a foundation opening for egress typically requires a permit, and we install to the current code so the finished bedroom passes inspection.

What kind of window is used for egress?

Usually a casement or a slider sized to hit the code clear-opening, chosen to fit the wall and give the easiest escape.

Book a free Montreal egress window installation estimate

Book a free in-home measure and a written, itemized quote for egress window installation anywhere across Montreal and the surrounding towns. Code-sized openings, watertight window wells, and a legal, safe basement bedroom — installed by our own crews, no subcontractors, no pressure.

Locally owned · Insured · ENERGY STAR® · Free written estimates

Real Montreal reviews

What Montreal homeowners say after install day

★★★★★ 4.9 · 118 reviews on Google

★★★★★

Turned our basement into a legal bedroom. They sized the opening to code and the window well stays dry through the spring melt.

M. Vandenberg

Homeowner, Montreal

Needed egress to rent the basement suite. One crew did the cutting, the window and the well — passed inspection with no issues.

A. Sharma

Homeowner, Laval

Peace of mind knowing the kids downstairs have a proper way out. Clean job and honest about what code required.

R. Peltier

Homeowner, Longueuil

Handled the whole thing — opening, window and drainage. No pooling water at the new well even after a heavy rain.

D. Iwu

Homeowner, Gatineau

Montreal egress window installation for a legal basement bedroom

A legal basement bedroom, a way out

Four steps from free measure to sealed install

Book the estimate

On-site measure

Written quote

Install, cleanly

Code-sized opening, a dry window well

More Montreal window styles we install

Vinyl Windows

Fiberglass Windows

Wood Windows

Aluminum Windows

Montreal egress window installation, answered

What Montreal homeowners say after install day

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Book a free Montreal egress window installation estimate