Energy-Efficient Casement Windows in the GTA

Engineered Warmth

Built to seal tight and stay warm

When a casement window closes, the sash pulls in tight against the frame like a hook and cinch, which makes it one of the best-sealing window styles you can buy. We build on that with glazing and hardware made for real Ontario winters.

Full Ventilation

Crank the sash all the way open to scoop fresh air into the room, far more than a slider lets in.

Low-E glass and argon fill

Thin coatings bounce heat back inside, and argon between the panes slows heat loss and cuts condensation.

Compression seal

As the sash closes it presses the weatherstripping evenly all the way around, so drafts have nowhere to sneak in.

Fusion-welded frames

Reinforced, welded corners hold the window square through years of heating and cooling.

Key Features

Casement windows engineered to perform

Every casement window we install is built for full ventilation, security and energy efficiency, with premium hardware and a clean, modern finish.

Side-Hinged Sash

Opens outward on a side hinge, swinging wide like a door for maximum airflow.

Best-in-Class Seal

The sash cinches tight against the frame when closed, sealing better than sliding styles.

Folding, Nesting Handle

A crank handle that folds away flat so it never gets in the way of blinds or coverings.

Premium Hardware

Engineered for smooth, effortless operation every time you crank the window open and closed.

Multi-Point Locking

Secures the sash at several points along the frame for added strength and peace of mind.

ENERGY STAR® Qualified

Designed to meet ENERGY STAR® qualifications for lower bills, year round.

Double or Triple Glazing

Available in double or triple glazing for insulation, comfort and quiet.

Unobstructed View

With no rail across the middle, a casement gives you a clean, full pane of glass and the view.

Colour & Finish Options

Finished to match your home

A curated palette of durable, fade-resistant colours to suit any style, from classic white to bold modern black. Interior and exterior finishes can be matched independently.

White

Frame Colour

White

Is It Time?

Six signs your windows are costing you money

Old, tired windows quietly pull heat and comfort out of your home. If any of these sound familiar, it is worth a conversation.

Drafts and cold spots

You feel air moving or notice cold patches near the window on winter days.

Condensation between the panes

Fog or moisture trapped inside the glass means the sealed unit has failed.

Rising energy bills

Your heating and cooling costs keep creeping up as air leaks around the sash.

Hard to open or close

The crank grinds, the sash sticks, or the window no longer latches and seals.

Rot, warping or damage

Soft frames, peeling paint or warped sashes on older wood or vinyl units.

Outside noise

Traffic and neighbourhood sound carry straight through thin, single-pane glass.

Product Line

Two profiles one standard of quality

Our casement windows are available in two vinyl frame series, so we can match the right profile to your project, whether it’s a new build or a replacement.

Ultraslim Series

A deeper frame with a slim 2-7/8″ visible profile and hidden gasket, delivering a sleek, modern look while maximizing glass area.

Classic Series

A proven frame depth with a familiar profile, ideal for retrofit and replacement projects where compatibility with existing openings matters.

Configuration & Options

Customized to your project

Casement windows support a full range of standardized options for clean, consistent detailing across every opening in your home.

Colour Options

A curated palette of durable, fade-resistant colours to match any architectural style.

Jambs, Casings & Brickmoulds

A variety of sizes and a full colour palette for polished window finishing inside and out.

Glass Options

Advanced glass types from decorative privacy textures to high-performance Low-E coatings.

Grill Options

Decorative pane patterns in a flexible range of interior grill shapes, common to fully custom.

Locking & Hardware

Multi-point locking with a folding, nesting handle and premium hardware for smooth operation.

Screen System

A smooth edge-overlap screen with a hidden retention system, keeping sightlines clean.

RECENT PROJECTS

Casement windows we have fitted

A few of the casement window projects we have completed for homeowners across Toronto and the GTA.

Trusted by homeowners

A closer look at how projects are handled and what clients say once everything is complete.

    
 
 
       Posted on Google  
   
   David Felshin 
 
 
 
 Trustindex verifies that the original source of the review is Google. We recently moved into a new home and quickly noticed some issues with drafts from the windows and concerns with the front door security. Reached out to Entry Edge and Mike and Rob were great from the start. They helped us get everything sorted quickly and had our new door and windows installed within a really solid timeline. The whole process felt smooth and well handled. Really happy with how everything turned out and would definitely recommend them.
  
 
      Posted on Google  
   
   Joseph Vaginshtein 
 
 
 
 Trustindex verifies that the original source of the review is Google. We had our old double front door replaced by Entry Edge and the difference is night and day. The old doors had draft issues and never felt very secure. Mike and Rob helped us design a solid fiberglass door that looks great and feels much safer. Super happy with how everything turned out and the overall experience.
  
 
      Posted on Google  
   
   Ayden G 
 
 
 
 Trustindex verifies that the original source of the review is Google. We had our front door, patio door, and all of our windows replaced by Entry Edge and couldn’t be happier. Rob and Mike were great to work with from start to finish, clear communication and no pressure at any point. Marko handled the install and did an excellent job. Everything was done professionally and kept clean throughout the process. Really happy with the quality of the work and the overall experience. Would definitely recommend Entry Edge.
  
 
      Posted on Google  
   
   Zarah Z 
 
 
 
 Trustindex verifies that the original source of the review is Google. We had a great experience with Entry Edge from start to finish. Communication with Mike and Rob was clear, responsive, and easy throughout the process. Marko handled the installation and did an excellent job. He was professional, punctual, and the work was done cleanly. The door looks great and we’re very happy with the final result. Would definitely recommend!!
  
 
      Posted on Google  
   
   AJ Sargon 
 
 
 
 Trustindex verifies that the original source of the review is Google. We had Entry Edge replace our windows and doors and the difference is immediately noticeable. The house feels brighter, quieter, and more finished overall. Everything was explained clearly, there were no surprises, and the install was done with care. Really happy we went this route and thankful to the Mike, Rob & the whole Entry Edge team for the solid work.
  
 
      Posted on Google  
   
   Mathew R 
 
 
 
 Trustindex verifies that the original source of the review is Google. Had our windows replaced by Entry Edge and we’re really happy with how everything turned out. The guys were professional, the install was done properly, and the new windows make a big difference. I am already saving money on my bill! The whole process was straightforward and the turnaround was quicker than I expected. Appreciate the work from Rob and Mike.
  
 
      Posted on Google  
   
   Sav M 
 
 
 
 Trustindex verifies that the original source of the review is Google. We had our front door and windows replaced through Entry Edge, and the quality is incredible. The whole process was smooth from start to finish, and the quality of the work really shows. Everything feels secure, looks amazing, and completely refreshed the look of our home. A huge thank you to Rob and Mike for making it such an easy and professional experience. Highly recommend to friends and family!
  
 
      Posted on Google  
   
   Christian Lapalme 
 
 
 
 Trustindex verifies that the original source of the review is Google. Had the pleasure of working with them on a design, and I must say they go to great lengths to ensure everything is perfect. I’m a returning customer and wouldn’t hesitate to work with them again. Thanks for a great experience. Chris from Ottawa
  
 
      Posted on Google  
   
   Agnes Bozek 
 
 
 
 Trustindex verifies that the original source of the review is Google. Entry Edge managed to bring my vision to life perfectly. The team listened, paid close attention to the details, and delivered exactly what I was hoping for. I truly appreciate the effort and care they put into the project. Huge thanks to Mike & Rob!
  
 
      Posted on Google  
   
   Ariel Rodov 
 
 
 
 Trustindex verifies that the original source of the review is Google. My wife and I are so happy with our new door. It looks amazing and the whole process was straightforward from start to finish. Communication was clear, the install was done with care, and the final result feels both secure and stylish. Thanks to Entry Edge for making it such a smooth experience!

How It Works

From measure to a finished opening

Four clear steps, with the same team looking after your project from the first measurement to the finished window. Is it worth replacing 20 year old windows in Ontario?

Measure and Consult

We visit, take precise measurements and talk through the look, light and airflow you want.

Design and Glass Selection

You pick the configuration, glass, colour and hardware, and we confirm the exact specification.

Custom Manufacturing

Your windows are built to your exact measurements and finish for a precise, weathertight fit.

Install and Walkthrough

We fit everything to spec, seal it cleanly, then walk through the finished work with you.

Free, no-obligation consultation

Ready to start?

What We Do

Serving Vaughan, Toronto & the GTA

Entry Edge Windows & Doors proudly serves Vaughan, Toronto and the surrounding GTA, building custom casement windows for homes across the region and the Canadian climate.

Explore more window styles: Awning Windows · Custom Windows · Sliding Windows

Custom front & entry doors
Energy-efficient replacement windows
Sliding & patio doors
Oversized & arched custom openings
Security-focused entry systems
Professional installation to spec

What’s Included

Every window we install includes…

A casement window from Entry Edge arrives complete, glazed, sealed and finished so it performs from the first day.

Low-E, argon-filled glass

Energy-efficient sealed units that cut heat loss, glare and condensation.

Multi-point locking

Locks the sash at several points for a tighter seal and better security.

Fusion-welded frame

Reinforced corners that keep the window square and sealing for years.

Heavy-duty operator

A smooth, durable crank that stays reliable even on wider sashes.

Colour-matched finish

Inside and outside colours matched to your home and made to last.

Professional installation

Fitted, insulated and sealed to manufacturer specification for a clean finish.

Energy Performance

Built to perform certified to prove it

Our casement windows are designed to meet ENERGY STAR® requirements across applicable climate zones. Performance varies by glazing, frame series and window size.

Energy Ratings at a Glance

A high-level comparison of typical double and triple-glazed casement window configurations, for general specification guidance.

Glazing Type	Energy Rating	U-Factor (W/m²·K)	SHGC	Most Efficient
Double Pane	36	1.25	0.39	No
Triple Pane	41	0.90	0.36	Yes

Energy ratings shown reflect representative configurations. Actual values vary by glazing package, series and final configuration.

Certified Performance Data

Verified through NRCan and NAFS testing for select casement window configurations, by glazing configuration, glass thickness and ENERGY STAR® zone compliance.

Metric	2-Pane 3mm	2-Pane 4mm	3-Pane 3mm	3-Pane 4mm
U-factor (W/m²·K)	1.56	1.56	1.27	1.28
Solar Heat Gain (SHGC)	0.44	0.43	0.41	0.39
Energy Rating	30	30	35	34
ENERGY STAR Zones (2015)	1 \| 2	1 \| 2	1 \| 2 \| 3	1 \| 2 \| 3
Layers of Glazing	2	2	3	3
U-factor (Btu/h/ft²·°F)	0.27	0.27	0.22	0.23
Visible Transmittance	0.51	0.50	0.46	0.46
Air Leakage (l/s·m²)	0.53	0.53	0.53	0.53

Actual performance values vary by glazing package, series selection and configuration. Full NRCan reference numbers available on request.

Size Limitations

Standard casement window size limits for the Canadian market. Maximum dimensions depend on glazing configuration and structural requirements.

Pane	Width (min – max)	Height (min – max)	Max Area
Double Glass	15″ – 34″	19″ – 71″	13 sq.ft.
Triple Glass	15″ – 34″	19″ – 71″	12 sq.ft.

Actual size limits may vary based on series selection, glass thickness and project-specific requirements.

FAQs

Frequently asked questions

Common questions about casement windows, energy efficiency, installation and warranty.

What is a casement window best used for?

Casement windows are a great all-around choice for living rooms, bedrooms and kitchens, anywhere you want maximum airflow and a clear view. Because they crank wide open, they are also handy over a sink or counter where a slider would be hard to reach.

Are casement windows energy-efficient?

Yes, they are among the most efficient styles available. The sash cinches tight against the frame with a compression seal, and paired with Low-E, argon-filled glass they hold heat in through the winter and keep it out in the summer.

Which way do casement windows open?

They hinge on one side and crank outward, swinging open like a door. You choose which side hinges so the window opens toward the breeze and away from walkways or patios.

Are casement windows secure?

They are. Casement windows lock at several points along the frame, and the hook-style hardware sits out of reach when the window is closed, which makes them tough to force open.

How long does installation take?

Most window replacements are done in a single day, depending on how many openings you have. Larger or custom sizes need a longer build time, which we confirm clearly before we begin.

Do your windows come with a warranty?

Yes. Our casement windows carry manufacturer warranty coverage and our workmanship is backed by Entry Edge. You get the full written details in your quote so you know exactly what is covered.

Casement window design & installation

Add fresh air, light and clear views with energy-efficient casement windows built for the Canadian climate. Entry Edge serves homeowners across Toronto and the GTA.

Casement windows that seal tight and open wide

Free Casement Window Consultation