
Crank windows, which include casement windows and awning windows, are now among the most popular window types for residential construction and renovation. Their simple opening mechanism, energy efficiency, and ability to match various architectural styles make them an increasingly common choice for both modern and traditional homes.
Depending on the project, the frame can be made of PVC or a hybrid solution (PVC and aluminum) to optimize durability, maintenance, and aesthetics.
Elegant, practical, and high-performing, crank windows have much to offer. This guide highlights their key features and advantages in terms of efficiency, comfort, and design, while also explaining why many homeowners choose Portes et Fenêtres Verdun to equip their homes with durable products suited to Quebec’s climate.
What is a Crank Window?
A crank window is a type of outward-opening window, operated by an interior crank handle. This system allows for precise control of the opening while offering better airtightness compared to sliding models. There are two main types: casement and awning.

Casement Window
A casement window opens outward to the left or right. Thanks to this full opening, air circulates freely within the room, making it an excellent choice for maximizing natural ventilation. This model is also known for its energy efficiency: the weatherstripping is tightly compressed by wind pressure, improving air and water tightness. In addition to its thermal insulation, it’s very easy to clean, as both sides of the glass can be accessed from inside the home, an important asset for upper-floor window

Awning Window
The awning window opens outward from the bottom. This opening style is particularly appreciated in rooms like bathrooms or kitchens, as it allows for constant ventilation even when it rains. The sash acts as a small awning, protecting the interior from the elements while letting air flow through. Like casement windows, awning models are equipped with multi-point locking systems for enhanced security.
The table below compares the two types.
| Casement Window | Awning Window | |
|---|---|---|
| Opening Direction | Opens outward (left or right side). | Opens outward from the bottom. |
| Ventilation | Wide opening that maximizes airflow; excellent control of ventilation. | Continuous ventilation possible even during light rain. |
| Airtightness / Energy Performance | Low air infiltration rate; performance comparable to awning when closed tightly. | Low air infiltration rate; performance similar to casement when locked. |
| Cleaning | Very easy: both sides of the glass are accessible from indoors (ideal for upper floors). | Exterior side generally less accessible from indoors. |
| Security | Multipoint locking system. | Multipoint locking system. |
| Hardware / Operation | Crank handle; hardware (operators + multipoint locks) ensures smooth opening and closing. | High-quality hardware for smooth operation, even on larger dimensions. |
| Recommended Rooms | Living areas (living room, bedrooms) and tall or narrow openings. | Bathrooms, kitchens, above sinks or countertops. Best suited for wider than tall openings. |
The Advantages of Crank Windows
If you’re looking to quickly assess whether crank windows suit your project, this section organizes key information into topic-based capsules. You’ll find essential insights on energy performance, acoustic comfort, usability, maintenance, security, and style integration.
Performance and Climate
One of the main advantages of crank windows lies in their energy performance. Thanks to their airtight closing system and compression seals, they significantly limit heat loss. This makes them ideal for harsh climates like Quebec, where energy efficiency is a top priority for any residential project. Their design also promotes excellent sound insulation, enhancing overall comfort.
Usability and Accessibility
In addition to their thermal performance, crank windows stand out for their ease of use. The crank mechanism is especially convenient for windows in hard-to-reach places, such as above a kitchen counter or sink. This easy opening and closing mechanism makes them an ergonomic choice for both young families and people with reduced mobility.
Easy Cleaning
Maintenance is another key advantage. Unlike some guillotine or sliding models, crank windows provide full access to the glass for quick and safe cleaning from indoors. This is especially valued in multi-storey homes.
Security
Crank windows come with multi-point locking systems that provide solid closure, helping to deter break-ins. This level of protection is an important factor for homeowners concerned about home security.
Aesthetic Appeal
Finally, crank windows adapt to all architectural styles. Whether your home is modern, contemporary, or classic, these windows are available in a wide range of materials, colors, and finishes. They allow you to combine aesthetic appeal and functionality without compromise.
Why Choose Portes et Fenêtres Verdun?
Portes et Fenêtres Verdun stands out for its expertise and wide selection of multi-brand crank windows. Each product is carefully selected to meet Quebec market standards in terms of thermal performance, durability, and design. Whether you’re planning new construction or renovations, our team supports you at every step from sizing to hardware selection.
As a manufacturer of doors and windows, we offer products built to withstand harsh winters and climate variations while ensuring optimal indoor comfort. Thanks to our wide model range, it’s easy to find crank windows that harmonize perfectly with your façade, existing openings, and style preferences.
Our team of advisors helps you assess your needs according to your project, budget, and lifestyle. We provide the expertise needed so every installed window enhances not only the appearance of your home but also its energy efficiency and long-term value.
Explore our collection of crank windows and get personalized assistance by booking an appointment with a Portes et Fenêtres Verdun advisor. Trust a local partner for results that meet your expectations.





