Shopping for replacement windows gets a lot easier once you understand the main styles and what each does best. The “right” window isn’t universal — it depends on the room, the view, the ventilation you want, and how the window looks from the street. This guide walks through the four window styles GTA homeowners choose most: casement, awning, hung, and slider. Use it as your map, then dive into the dedicated page for whichever style fits your project.
Casement windows — the energy-efficiency champion
Casement windows are hinged on the side and crank open outward like a door. They’re enormously popular in the GTA, and for good reason.
- Best for: living rooms, kitchens, and any room where you want maximum light, a clear view, and the tightest possible seal.
- Strengths: Because the sash presses against the frame when closed, casements seal exceptionally well — the most energy-efficient operating style. They also offer the largest unobstructed glass and catch side breezes for great ventilation.
- Good to know: They open outward, so they’re ideal where nothing obstructs the swing. Many casements also meet egress requirements for bedrooms.
Casements are often the starting point for a whole-home upgrade. Browse our full range of replacement windows to see casement and other styles.
Awning windows — ventilation, even in the rain
Awning windows are hinged at the top and open outward from the bottom, creating a small “awning” of glass.
- Best for: basements, bathrooms, kitchens, and pairing above or beside larger fixed/picture windows.
- Strengths: Because they open from the bottom and the glass angles outward, you can leave them open during light rain for fresh air without water coming in. They also seal tightly and work well in spots where you want ventilation and privacy.
- Good to know: Their compact size makes them perfect for hard-to-reach or smaller openings.
Hung windows — the timeless, traditional look
Hung windows slide vertically. A single-hung has one moving (bottom) sash; a double-hung has two sashes that both move, top and bottom.
- Best for: traditional, Victorian, Edwardian, and heritage homes where a classic look is important — common across Toronto’s older neighbourhoods.
- Strengths: Timeless curb appeal and period-correct proportions. Double-hung windows allow airflow from top and bottom and tilt in for easy cleaning from inside.
- Good to know: They don’t protrude outward, so they suit walkways, patios, and tight side-yards.
Slider windows — simple, wide, and easy
Slider windows glide horizontally along a track. Arctic Vinyl offers two slider types:
- Tilt slider windows tilt inward for easy cleaning while sliding horizontally — a great mix of convenience and a clean, modern look. Ideal for bedrooms and wide openings.
- Lift-out slider windows have sashes you can lift out entirely for cleaning or egress — simple, durable, and practical.
- Best for: wide, horizontal openings, bedrooms, and modern homes.
- Strengths: Easy one-hand operation, no outward swing, and a broad, contemporary glass area.
- Good to know: Because they slide rather than crank, they’re effortless to operate and a budget-friendly choice for many rooms.
How to choose between them
There’s no single “best” window — the right answer changes from room to room. A north-facing bedroom has different needs than a sunny kitchen or a damp basement, and the view, the swing clearance outside, and how often you’ll open it all factor in. A quick way to narrow it down:
| If you want… | Choose |
|---|---|
| Maximum energy efficiency and view | Casement |
| Ventilation in rain / small or high openings | Awning |
| A classic, heritage-appropriate look | Hung |
| Easy operation on a wide opening | Slider (tilt or lift-out) |
Most homes use a mix — casements in the main living spaces, awnings in the basement and bathrooms, hung windows on a traditional front façade, and sliders in bedrooms. A good consultation maps the right style to each opening rather than forcing one style across the whole house. That room-by-room approach is what separates a thoughtful replacement from a one-size-fits-all order.
The constant across every style: the glass and the frame
Whatever style you choose, the energy performance comes from the same place: a triple-pane, Low-E, argon-filled glass package in a quality, low-maintenance vinyl frame, professionally installed. That combination is what earns ENERGY STAR certification, qualifies for Ontario rebates, and keeps your home warm and quiet.
Ready to explore? Browse all of our replacement window styles and request a free quote — we’ll recommend the best style for every room in your home.
Frequently Asked Questions
Casement windows are generally the most energy-efficient operating style because the sash presses tightly against the frame when closed, minimizing air leakage. Paired with triple-pane, Low-E glass, casements offer an excellent seal along with the largest unobstructed glass and view.
A single-hung window has one operable sash (the bottom one moves), while a double-hung window has two operable sashes that both move. Double-hung windows allow airflow from the top and bottom and typically tilt in for easy cleaning, making them more versatile.
Awning windows are hinged at the top and open outward from the bottom, so they can stay open during light rain for ventilation. They’re ideal for basements, bathrooms, kitchens, and pairing with larger picture windows, and they work well in smaller or higher openings.
A tilt slider window slides horizontally along a track and tilts inward so you can clean both sides from inside your home. It combines easy operation with low maintenance and a clean, modern look, making it popular for bedrooms and wide openings.
Hung windows are usually the best fit for heritage and traditional Toronto homes because their vertical-sliding design and proportions match period architecture. Custom sizing ensures they fit older, non-standard openings while delivering modern energy efficiency.