Casement and double-hung windows are two of the most popular replacement window styles for Ontario homes.
While both offer excellent performance, they operate very differently and each comes with its own advantages depending on your home’s design, ventilation needs, and personal preferences.
Some homeowners prioritize:
- Better airflow
- Easier cleaning
- Stronger energy efficiency
Others care more about:
- Maintaining a traditional look
- Preserving the character of the home
- Flexible ventilation options
This guide compares casement and double-hung windows so you can decide which style makes the most sense for your home and lifestyle.
TLDR: Casement vs. Double-Hung Windows
Choose Casement Windows If:
- You want stronger energy efficiency
- You prefer an unobstructed view
- Security is a priority
- You want maximum airflow
Choose Double-Hung Windows If:
- You want easier cleaning from inside
- Your home has a traditional design
- You prefer classic window styling
- You want flexible top-and-bottom ventilation
Quick Comparison: Casement vs. Double-Hung Windows
| Feature | Casement Windows | Double-Hung Windows |
| Best For | Energy efficiency and airflow | Traditional homes and easy cleaning |
| Ventilation | Excellent | Very Good |
| Energy Efficiency | Excellent | Very Good |
| Cleaning | Good | Excellent |
| Security | Excellent | Very Good |
| Maintenance | Moderate | Low |
| View | Unobstructed glass area | Horizontal meeting rail |
| Typical Cost | Higher | Moderate |
What’s the Difference Between Casement and Double-Hung Windows?
Casement windows open outward using a crank mechanism.
Double-hung windows slide vertically, allowing both the upper and lower sashes to move independently.
This changes:
- How the window ventilates
- How easy it is to clean
- The overall appearance of the home
- How tightly the window seals
Which Window Style Is More Energy Efficient?
Both casement and double-hung windows can be highly energy efficient when they’re built with quality materials and installed properly.
Casement windows are often considered one of the most energy-efficient window styles because they close tightly against the frame when locked. This helps reduce drafts, air leaks, and heat loss, making them especially effective during Ontario winters.
Double-hung windows can also deliver excellent energy performance when paired with quality weatherstripping, insulated frames, and ENERGY STAR® glass. However, because both sashes move vertically, they typically have slightly more potential air leakage than a casement window.
If maximizing energy efficiency is your top priority, casement windows generally have a slight advantage. That said, both styles can perform exceptionally well when professionally installed.
Which Window Style Is Easier to Clean?
Double-Hung Windows
This is where double-hung windows shine.
Most modern systems feature tilt-in sashes, allowing homeowners to clean the outside glass safely from inside the home.
This is especially useful for:
- Second-storey windows
- Multi-level homes
- Hard-to-reach areas
Casement Windows
Casement windows can still be cleaned fairly easily, but the outward-opening sash may be harder to access depending on location.
This can become slightly awkward:
- Above kitchen sinks
- Near landscaping
- On upper floors
Which Window Style Offers Better Airflow?
Casement Windows
Casement windows open outward and can catch side breezes, helping direct airflow into the home.
Because nearly the entire window opens, they provide excellent ventilation.
Double-Hung Windows
Double-hung windows create a different type of airflow.
By opening:
- The bottom sash
- And the top sash simultaneously
Warm air can exit through the top while cooler air enters below.
This creates natural airflow circulation throughout the room.
Which Window Style Makes the Most Sense for Ontario Homes?
Ontario homeowners deal with freezing winters, humid summers, strong winds, and significant temperature swings throughout the year.
That’s why choosing replacement windows isn’t just about appearance. It’s about selecting a window that performs well in your home and stands up to Ontario’s climate.
For many homeowners, the decision comes down to priorities. If energy efficiency, ventilation, and maximizing comfort are most important, casement windows are often the preferred option. If maintaining a traditional look and simplifying cleaning are bigger priorities, double-hung windows can be an excellent choice.
The best window isn’t necessarily the same throughout the entire house. It’s the one that works best for the space where it’s being installed.
What Most Homeowners Get Wrong
Many homeowners spend weeks comparing window styles but overlook the factor that often matters most: installation quality.
A properly installed window that fits the opening correctly will almost always outperform a higher-end window that isn’t installed properly.
That’s why measurements, installation, and sealing are just as important as the style you choose.
Not Sure Which Window Style Is Right for Your Home?
Every home is different. The best window for a century home in London may not be the same choice for a newer home in Windsor or Mississauga.
A free consultation can help you compare styles, understand your options, and choose the right windows for your home’s layout, comfort goals, and budget.
Frequently Asked Questions About Casement and Double-hung Windows:
Generally, yes. Casement windows create a tight seal when locked, which can help reduce drafts and air leakage.
Double-hung windows are often easier to clean because many models feature tilt-in sashes that can be cleaned from inside the home.
Yes. Double-hung windows are commonly used in century homes and traditional architectural styles because they maintain a classic appearance.
Both styles can last for decades when properly manufactured, installed, and maintained.
Absolutely. Many homeowners choose different window styles for different rooms based on ventilation, appearance, and functionality.
The Brookstone Difference
At Brookstone, every replacement window is custom-built specifically for your home’s exact opening, helping reduce drafts, improve comfort, and maximize long-term performance.
Ontario homes shift over time because of:
- Freeze-thaw cycles
- Seasonal expansion
- Foundation movement
That’s why proper measuring and installation matter just as much as the window itself.
Our windows are manufactured in Ontario using high-quality materials designed for long-term performance in Canadian weather conditions.
Every installation is backed by our True Lifetime Warranty covering both product and labor.
We also understand that replacing windows is a major investment for many homeowners. That’s why we offer flexible financing options and seasonal promotions throughout the year to help make replacement projects more manageable.
Not Sure Which Window Style Is Right for Your Home?
Every home is different. The best window for a century home in London may not be the same choice for a newer home in Windsor or Mississauga.
A free consultation can help you compare styles, understand your options, and choose the right windows for your home’s layout, comfort goals, and budget.
Whether you’re replacing a few windows or planning a full-home renovation, our team can help you compare styles, pricing, financing options, and current promotions.
Final Thoughts
Both casement windows and double-hung windows can be excellent choices for Ontario homes.
If energy efficiency, airflow, and larger uninterrupted views are your priorities, casement windows are often the preferred option. If you value traditional styling, easier cleaning, and flexible ventilation, double-hung windows may be the better fit.
The most important factor isn’t simply the window style you choose. It’s making sure the window is properly measured, professionally installed, and designed to perform in Ontario’s climate for years to come.