Choosing between casement vs awning window can be tricky. Casement windows and awning windows are popular for bringing in natural light and fresh air. This post will compare these window styles to help you decide which is best for your home.
Keep reading to find out more.
Key Takeaways
- Casement windows open outward with a crank, are great for ventilation and views but need space outside to open. They seal tightly when closed, making them energy efficient.
- Awning windows hinge at the top and can stay open during rain, fitting well in hard-to-reach places. They also have good energy efficiency but are limited in size and not suitable as emergency exits.
- Both casement and awning windows offer improved home security with locking mechanisms. They can help lower energy bills by reducing air leaks when closed properly.

What Are Casement Windows?
Casement windows are hinged at the side and open outwards like a door. They provide excellent ventilation and an unobstructed view when opened.
Key Features of Casement Windows
Casement windows swing open like a door. They are hinged on one side and open outward.
- You use a crank handle to open and close them. This makes it easy to operate.
- Casement windows have a tight seal. When closed, they are very energy efficient.
- These windows often come with a multipoint locking system. This locks the window sash at multiple points for better security.
- They provide excellent ventilation. The whole window opens, allowing maximum air flow.
- Casement windows are suited for tall openings in your home. Their design is typically taller than it is wide.
- They can serve as egress windows. This means they can be an emergency exit because of their large opening size.
- With only one sash, casement windows offer an unobstructed view outside.
- Many casement windows have triple pane glass. This feature makes them very energy efficient.
These key features make casement windows a popular choice among homeowners looking for replacement windows or new window options that combine functionality with energy efficiency.
Pros and Cons of Casement Windows
Casement windows are a popular choice for many homeowners due to their unique design and functionality. Here, we outline the advantages and disadvantages of casement windows to help you make an informed decision.
Pros of Casement Windows | Cons of Casement Windows |
Provide excellent ventilation | Can catch the wind |
Offer unobstructed views | Require space outside to open |
Easy to open and close with a crank | Higher cost than some other types |
Good security features | Seals can wear out over time |
Energy efficient design | Limited placement options due to their swing |
Casement windows are versatile and have a lot of benefits, including great ventilation and views. Yet, they do have downsides, such as potentially catching the wind and requiring maintenance. These factors are important to consider for homeowners looking to make the best choice for their homes.

What Are Awning Windows?
Awning windows are hinged at the top and open outward from the bottom with a crank handle, providing excellent ventilation even during light rain. They are ideal for hard-to-reach spaces and can be combined with other window types to create a unique look.
Key Features of Awning Windows
Awning windows open vertically to let in air and light. They are perfect for hard-to-reach spaces because you can operate them with a hand crank.
- These windows attach at the top and swing outward, creating an awning effect.
- A crank mechanism makes it easy to open, even in tight or high places.
- Awning windows provide ventilation during light rain without letting water inside.
- The sloped surface directs rain away from the opening, protecting your interior.
- Most models come with a screen that fits snugly against the frame to keep bugs out.
- They are often placed above or below other windows or doors for extra light and air flow.
- Energy efficient window types include awning designs, which reduce air leakage and save on energy bills.
- Multiple awning windows can be installed together for maximum ventilation in larger rooms.
- Each window has a single sash that fits tightly into the frame, increasing security.
- Internal latches or multi-point locking systems add another layer of safety.
Next, we’ll look into casement windows and how they compare.
Pros and Cons of Awning Windows
Transitioning from the unique attributes of awning windows, we explore their advantages and disadvantages to provide a comprehensive view for homeowners.
Pros of Awning Windows | Cons of Awning Windows |
Provide excellent ventilation . | Can be more expensive than other window types. |
Can remain open during light rain. | Not suitable for emergency exits. |
Offer good security due to locking mechanism. | Limited in size, not ideal for large openings. |
Energy efficient with tight seal. | Requires maintenance on hinges and hardware. |
Enhances natural light and air flow. | Placement is limited since they project outward. |

Comparison: Casement vs Awning Window
Casement windows open outwards with a crank while awning windows are hinged at the top and open upwards. Casement windows provide better ventilation whereas awning windows offer protection from inclement weather when opened.
Functionality and Design Differences
Casement windows open outward like a door, typically using a hand-crank. They offer excellent ventilation and are great for hard-to-reach spaces. Conversely, awning windows hinge at the top and push out from the bottom, providing shelter from rain while allowing airflow.
The design difference lies in their opening mechanism – casement windows swing to the side while awning windows open upward.
Regarding functionality, casement windows are ideal for tall openings as they’re generally wider than they are tall. Conversely, awning windows suit shorter and wider spaces due to their taller height compared to width.
The different designs cater to various needs depending on space dimensions and preferred ventilation options.
Energy Efficiency and Ventilation Comparison
Casement and awning windows both offer excellent energy efficiency, assisting in maintaining your home’s temperature year-round. Both styles provide a secure seal when closed, effectively preventing drafts and heat loss.
Casement windows, with their crank mechanism, ensure a tight closure, while awning windows are hinged at the top, offering great ventilation even during light rain.
In terms of ventilation, awning windows perform exceptionally well. Their design allows for optimal airflow while shielding your home from rain. The multi-point locking system of casement windows establishes an airtight seal when closed, enhancing energy efficiency.
This guarantees minimal air leaks, making them highly effective in maintaining indoor temperature levels. Moreover, both types of windows can be personalized with energy-efficient glass options to further enhance overall thermal performance.

Best Manufacturers of Windows
When choosing windows, selecting a reliable manufacturer ensures quality, durability, and exceptional performance for your home’s needs.
- Andersen Windows: Known for innovative designs and energy efficiency, offering a wide range of customizable window options.
- Pella Corporation: Specializes in high-quality, durable windows with advanced glass technology and stylish aesthetics.
- Milgard Windows & Doors: Offers reliable, energy-efficient windows with a focus on contemporary designs and superior craftsmanship.
- JELD-WEN: Renowned for versatile and affordable windows, providing excellent thermal performance and aesthetic appeal.
- Marvin Windows and Doors: Combines premium materials and expert engineering, delivering long-lasting and beautifully tailored windows for every home.
FAQs
1. What are the differences between awning and casement windows?
Awning and casement windows differ in how they open, their shape, and where they fit best in a home. Casement windows have a crank mechanism and are typically wider for larger openings. Awning windows also use a crank but are better for taller openings or hard to reach spaces.
2. How does the opening mechanism divide between awning vs casement windows?
Casement windows swing out from the side with a handle while awning windows open outward from the bottom using a similar handle system.
3. Can you tell me about energy efficiency of these window types?
Both awning and casement windows can be very energy efficient due to their design where the sash fits snugly against the frame when closed, creating an air-tight seal.
4. What is unique about the locking system of these window types?
A distinct feature of both these window types is their multi-point locking system that provides added security compared to single hung or slider windows which have only a single sash lock.
5. Which one requires less maintenance: an awning or casement window?
Both styles require little maintenance as compared to sliding or double hung windows because there’s no track that can get dirty or damaged over time.

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