When finishing your basement, installing an egress window is not just a building code requirement—it’s also a vital feature for safety, natural light, and resale value. But with so many options in style, material, and function, how do you choose the right egress window for your basement?
In this guide, we’ll explore the top tips for choosing the best egress window for your home, based on factors like code compliance, size, type, energy efficiency, and design goals.
What Is an Egress Window?
An egress window is a window that provides an emergency exit from a basement or lower-level space. Most local building codes require that any basement bedroom or habitable area have at least one egress window. These windows also allow natural light, ventilation, and increase the usable square footage of your home.
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Why Choosing the Right Egress Window Matters
Choosing the right egress window impacts:
- Safety and code compliance
- Overall home value
- Lighting and ventilation
- Waterproofing and insulation
- Interior and exterior aesthetics
A well-chosen egress window not only serves its purpose but also adds beauty, functionality, and resale appeal to your basement space.
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Top Tips for Choosing the Best Egress Window
1. Understand Building Code Requirements
Before anything else, ensure your egress window complies with IRC (International Residential Code) or your local building codes. Here’s what a typical egress window must provide:
| Requirement | Minimum Standard |
|---|---|
| Opening width | 20 inches |
| Opening height | 24 inches |
| Clear opening area | 5.7 sq. ft. (5.0 sq. ft. at ground level) |
| Sill height from floor | Maximum 44 inches |
| Window well clearance | 9 sq. ft. of area, minimum 36” in projection |
Pro Tip: Hire a contractor familiar with local codes to ensure a hassle-free inspection.
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2. Choose the Right Window Type
There are several window styles that meet egress requirements. Choose one based on space, access, and aesthetics:
- Casement Windows
- Ideal for narrow openings
- Easy to open with a crank
- Excellent for ventilation
- Sliding (Horizontal) Windows
- Good for wider spaces
- Require more wall space
- Easier for emergency exit
- Double-Hung Windows
- Less common due to limited clear opening
- Check code carefully if choosing this style
- In-Swing or Out-Swing Windows
- Space-saving design
- Ensure the well allows for full swing and escape
Best Option: Casement windows often provide the largest clear opening with minimal wall space.
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3. Select the Right Location
Placement plays a major role in both functionality and aesthetics. Choose a location that:
- Meets the 44-inch maximum sill height
- Can be accessed from inside and outside
- Allows for natural daylight into the room
- Avoids underground utility lines
- Can support proper drainage and waterproofing
Best Locations: Bedrooms, home offices, or living areas in the basement.
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4. Prioritize Drainage and Waterproofing
A poor-quality installation or bad location can cause leaks, mold, or flooding. Make sure:
- The window well has a drain or gravel base for water runoff.
- Use flashing, waterproof sealant, and a proper window well cover.
- Grade the exterior soil away from the window for runoff.
Neglecting drainage is the #1 reason egress windows fail.
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5. Consider Natural Light and Ventilation
Egress windows aren’t just for escape—they’re a primary source of daylight in basements. Choose a window that:
- Faces south or east for more sunlight.
- Has clear glass (double-pane or low-E for energy efficiency).
- Can be easily opened for airflow to reduce moisture and odors.
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6. Pick a Window Well That Matches Your Landscape
Your window well is just as important as the window. Today’s options go beyond plain metal:
- Galvanized Steel Wells – Budget-friendly and durable
- Composite Wells – Decorative with stone-texture looks
- Concrete Wells – Long-lasting and custom
- Timber or Brick Wells – Aesthetic but may require more upkeep
Add a cover to prevent water, debris, animals, or snow from entering the well.
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7. Think About Interior Finish Compatibility
Make sure your window fits into your interior design plan:
- Will you need a jamb extension to finish the wall?
- Are you installing drywall, paneling, or tile around it?
- Choose trim and casing that match the room’s aesthetic.
- Consider blinds, shades, or curtains for privacy.
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8. Choose Energy-Efficient Options
Basements are prone to energy loss due to contact with the earth. Choose windows that are:
- Double- or triple-pane
- Low-E coated
- Filled with argon gas
- ENERGY STAR® certified
You’ll reduce utility bills and increase comfort year-round.
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9. Consider DIY vs. Professional Installation
Installing an egress window is not a basic DIY project. It often involves:
- Cutting into your concrete foundation
- Digging a deep window well
- Structural modifications
- Code inspection and permits
DIY Cost: $1,500–$3,000
Pro Install: $3,500–$8,000+
Unless you’re experienced, hiring a licensed contractor is highly recommended.
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10. Compare Brands and Warranty Options
Look for manufacturers offering:
- Strong warranties (10–20 years)
- Local building code compliance
- Replacement parts availability
- Trusted reviews and certifications
Top egress window brands in 2025 include:
- Andersen Windows
- Pella
- Wellcraft
- Marvin
- Egress Solutions
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Boosting Property Value with the Right Egress Window
Adding a properly installed egress window can increase your home’s value by $10,000–$30,000, especially if it:
- Converts an unfinished basement into livable square footage
- Qualifies a basement room as a legal bedroom
- Enhances energy efficiency and safety
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Final Thoughts
Choosing the right egress window isn’t just about meeting code—it’s about maximizing comfort, safety, and resale value. From style and size to location and energy performance, every decision matters.
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