If you are considering finishing your basement or adding a bedroom in your lower level, you need to be aware of egress window requirements. Egress windows are essential for ensuring safety, providing natural light, and complying with building codes. At Cornerstone Structural Repair & Waterproofing, we specialize in egress window installation and guarantee our work for homeowners in St. Louis.
Contact us today to learn more about our expert egress window installation services and how we can help you bring your basement up to code.
What is an Egress Window?
The first question when it comes to understanding egress window requirements is “What is an egress window?”. An egress window is a window that serves as an emergency exit in case of a fire or other emergency. They are required in any livable basement space, including bedrooms and living areas, to provide a safe escape route. Properly installed egress windows also allow natural light and ventilation into your basement.
Why Are Egress Windows Required?
Building codes require egress windows to ensure that occupants can safely exit a basement in an emergency. These windows also provide emergency responders with an entry point if needed. Without a proper egress window installation, your basement may not be up to code, which can affect the safety of your home and its resale value.
Egress Window Code Requirements
Egress window requirements vary slightly depending on local building codes, but the following are the general international standards that apply in most areas, including St. Louis:
Minimum Egress Window Size
- Minimum width: 20 inches
- Minimum height: 24 inches
- Minimum net clear opening: 5.7 square feet (for ground-level windows, the minimum is 5.0 square feet)
- Maximum sill height: 44 inches from the floor
Egress Window Well Requirements
If your egress window is below ground level, you must install an egress window well that meets the following specifications:
- Minimum horizontal projection: 36 inches
- Minimum width: 36 inches
- Ladder or steps required if the window well is deeper than 44 inches
- Drainage system to prevent water accumulation
Basement Bedroom Egress Requirements
- Every basement bedroom must have at least one egress window.
- If multiple bedrooms exist, each room must have its own separate egress window.
- The window must open without special tools or keys.
When Are Egress Windows Needed?
Egress windows are required in all habitable basement spaces, but you may also need them for:
- Basement bedroom conversions
- Home remodeling projects
- New home construction
- Bringing older homes up to code
If your home does not currently meet egress window requirements, installing one can increase safety and add value to your property.
Choosing the Right Egress Window for Your Home
There are several types of egress windows, each offering unique benefits. The most common types include:
Casement Egress Windows
- Hinged on the side and swing open like a door
- Ideal for small basement spaces
Sliding Egress Windows
- Open by sliding horizontally
- Requires a larger window well to meet the opening requirements
Double-Hung Egress Windows
- Both the top and bottom sashes open
- Less common due to limited opening space
Each option has its own egress window measurements and requirements that must comply with local codes.
Frequently Asked Questions About Egress Window Requirements
Do all basements need an egress window?
Not all basements require egress windows, but if you plan to use the basement as a bedroom or living space, building codes require at least one egress window.
Can I install an egress window myself?
While DIY installation is possible, it is recommended to hire a professional egress window installer to ensure the job meets building code requirements and is done safely.
How much does it cost to install an egress window?
The egress window cost varies depending on factors such as window type, excavation, and labor. Costs typically range from $2,500 to $5,000.
What happens if my home doesn’t meet egress window code?
If your home does not meet egress window requirements, you may face issues with home inspections, insurance, or resale value. Installing an egress window is a valuable investment.
Do egress windows need window wells?
Yes, if the egress window is below ground level, an egress window well with proper drainage is required.
Trust Cornerstone for Your Egress Window Installation in St. Louis
Ensuring your home meets egress window requirements is crucial for safety and compliance. At Cornerstone Structural Repair & Waterproofing, we offer expert egress window installation services.
Contact us today to schedule a free quote for basement waterproofing services or egress window installation and learn how we can help make your basement safe, functional, and up to code!
