Montreal garden window installation — a greenhouse over the sink

A garden window boxes out from the wall like a glass greenhouse — glass roof, glass sides and shelves — usually over the kitchen sink for herbs and plants. Side awning vents crack open for airflow.

Every opening measured on-site

Full air-seal on every unit

Written frame + sealed-glass warranty

A garden window greenhouse over the sink

A garden window is a glass box that projects out with a glass roof and interior shelves — a mini-greenhouse, usually over the kitchen sink, that bathes herbs and small plants in light from three sides and the top. Side awning windows let you crack it for airflow, so it is as practical as it is charming: fresh basil in February and a bright spot to do the dishes.

Like any projecting unit, it lives out in the weather, so in Montreal the box has to be insulated and flashed or it turns into a cold, dripping problem in the depths of winter. We build it to handle our winters, the same way we approach a bay or bow window or an energy-efficient replacement — warm, dry and condensation-free while it does its greenhouse job.

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.

A garden window with light, airflow and warmth

Proper support, insulation and flashing are what keep a garden window solid, warm and condensation-free through a a hard winter — the glass roof and projecting box are exactly where a rushed install leaks or sweats. We detail all three, air-seal the unit to the wall, and glaze it with efficient Low-E glass, just as we would on a casement window.

The written quote covers the box, the glass package, the awning vents and the finish, so you know what is included. If an older sealed unit ever fogs we also handle foggy sealed unit repair, and we can pair the garden window with an energy-efficient replacement nearby — every unit under a written warranty.

Montreal garden window installation, answered

Best placement, staying warm and ventilation for garden windows.

Where do garden windows go?

Most often over a kitchen sink, where the extra depth, the shelves and the light from three sides plus the top are perfect for growing herbs and small potted plants year-round. It also makes a bright feature of a spot you already stand at every day. Garden windows suit other rooms too — a sunny breakfast nook or a bathroom where you want plants and light — anywhere there is an exterior wall and room for the box to project. We help you confirm the location and projection at the measure.

Do garden windows get cold?

Not when it is insulated and glazed properly, which is the key with any projecting window in our climate. Because a garden window boxes out into the weather with a glass roof, the frame and the non-glass surfaces have to be well insulated and the glass has to be efficient, or it becomes a cold spot that drips with condensation. We build them with insulated, flashed projections and efficient Low-E glass so they handle Montreal winters without a moisture problem — a warm, bright greenhouse, not a cold, wet ledge.

Do they open for airflow?

Yes — the two side panels of a garden window are typically awning vents that crank open outward, so you get real ventilation as well as light. That airflow matters over a sink or stove, where it helps clear moisture and cooking heat, and it lets your plants breathe. Because the vents are awning-style, you can leave them cracked in light rain without water coming in. Closed, they seal by compression for a tight, efficient window. We will show you the operation at the estimate.

Do garden windows come with shelves?

Yes — a garden window includes glass shelves for plants, and the glass top and sides bathe them in light from every direction.

Will a garden window fit my existing opening?

Often yes, though it projects outward, so we confirm the opening and the exterior clearance at the free measure before ordering.

Book a free Montreal garden window installation estimate

Book a free in-home measure and a written, itemized quote for garden window installation anywhere across Montreal and the surrounding towns. A bright greenhouse over your sink, built insulated and watertight for our winters and backed by a written warranty — fitted 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

★★★★★

My little kitchen greenhouse over the sink. Herbs get sun all winter and, thanks to their insulating, no condensation problems.

L. Chartrand

Homeowner, Montreal

Adds light and a spot for plants and it stays warm and dry even in the deep cold. Lovely upgrade.

S. Kaur

Homeowner, Laval

The side vents let a breeze through while I do the dishes. Built solid and flashed watertight.

J. Cardinal

Homeowner, Longueuil

★★★★

Charming and practical. The estimator confirmed the projection would fit before we committed.

B. Nowak

Homeowner, Gatineau

Montreal garden window installation — a greenhouse over the sink

A garden window greenhouse over the sink

Four steps from free measure to sealed install

Book the estimate

On-site measure

Written quote

Install, cleanly

A garden window with light, airflow and warmth

More Montreal window styles we install

Vinyl Windows

Fiberglass Windows

Wood Windows

Aluminum Windows

Montreal garden window 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 garden window installation estimate