Montreal skylight installation — roof daylight, flashed watertight

A skylight brings daylight down from the roof into dark rooms, stairwells and windowless baths — the one direction a wall window cannot reach.

Every opening measured on-site

Full air-seal on every unit

Written frame + sealed-glass warranty

Daylight from above, for dark rooms

A skylight floods a dark room with natural daylight from above — the one direction a wall window cannot reach — and a venting model adds a path for hot, moist air to escape at the highest point of the room. It is the fix for interior baths, stairwells, hallways and rooms with no good exterior wall, brightening a dim space without rearranging the house.

In our climate the make-or-break detail is the flashing. A skylight sits in the roof under snow, ice and spring melt, so how it is flashed and sealed to the roofing is everything — the difference between years of trouble-free light and a stain on the ceiling.

We install to that standard and can pair a skylight with a matching casement window or fixed picture window below. See all our window installation services or book a free measure.

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.

Flashed watertight, glass that stays clear

We flash and seal each skylight to shed snow-melt and rain the way the roof itself does — layered, lapped and tied into the shingles — not just caulked and hoped. That is what keeps Montreal skylights dry through a January thaw and a spring melt.

We also advise on placement and glazing to keep condensation down, since a skylight over a humid bath needs different handling than one over a stairwell. The written quote covers the unit, the flashing kit and the interior light-shaft finish, all backed by warranty. If an older skylight fogs, ask about foggy sealed-unit repair, skylight glass repair, or a full energy-efficient replacement.

Montreal skylight installation, answered

Leaks, venting and condensation for skylights.

Do skylights leak in Montreal?

Not when they are flashed and installed correctly — leaks come from bad flashing, not from skylights as a category. A quality unit paired with a proper step-and-counter flashing kit, lapped into the shingles the way the rest of the roof sheds water, will stay dry through snow-melt, ice and heavy rain. The old horror stories almost always trace back to a caulk-only install or a cheap job done wrong. We install to the manufacturer's flashing spec on the right unit for your roof pitch, so it sheds water like the roof around it.

Can skylights open?

Yes — venting skylights open, either manually with a pole or crank or with a motor and remote, to let hot, moist air escape at the highest point of the room. That is a real benefit over a bathroom, kitchen or stairwell, where heat and humidity collect near the ceiling; opening the skylight vents it straight out. Fixed skylights, which only bring in light, cost less and have one less thing to seal. We help you choose between fixed and venting based on the room and how you will use it.

Will a skylight cause condensation?

Any glass in a cold climate can sweat if the room is humid and the glazing or placement is wrong, and a skylight is no exception — but good choices keep it in check. We spec efficient, insulated glazing, advise on the best location for the room, and make sure the light shaft is insulated so the interior surface stays warmer. Managing room humidity with a vent fan helps too, and a venting skylight lets moisture out directly. Placed and glazed properly, a modern skylight stays clear, not dripping, through Montreal winters.

Fixed or vented skylight — which should I choose?

Fixed skylights cost less and only bring light; vented models open to release heat and moisture, which is ideal over a bathroom or kitchen.

Can a skylight be added to any roof?

Most pitched roofs suit a skylight; we check the roof structure and pitch and pick the right unit and flashing kit for a watertight install.

Book a free Montreal skylight installation estimate

Book a free in-home measure and a written, itemized quote for skylight installation anywhere across Montreal and the surrounding towns. Daylight from above, flashed watertight for our snow and melt, and backed by warranty — 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

★★★★★

Our dark hallway is now full of daylight. They flashed it properly and not a drop of water through the spring melt.

H. Lemieux

Homeowner, Montreal

Vented skylight over the bathroom — clears the steam and brings in light. Flawless, dry install.

A. Osei

Homeowner, Laval

Was nervous about leaks but their flashing work put that to rest. A full winter of snow-melt and it stays dry.

R. Dumont

Homeowner, Longueuil

Brightened a windowless stairwell. Neat interior finish and honest advice on the best placement.

M. Sekhon

Homeowner, Gatineau

Montreal skylight installation — roof daylight, flashed watertight

Daylight from above, for dark rooms

Four steps from free measure to sealed install

Book the estimate

On-site measure

Written quote

Install, cleanly

Flashed watertight, glass that stays clear

More Montreal window styles we install

Vinyl Windows

Fiberglass Windows

Wood Windows

Aluminum Windows

Montreal skylight installation, answered

What Montreal homeowners say after install day

Montreal window guides

How to Choose the Right Windows for Your Montreal Home

Book a free Montreal skylight installation estimate