Basement Window Replacement in St. Louis

Over time, basement windows can become outdated, inefficient, and even hazardous. Cracked glass, drafty frames, water leaks, and poor insulation are just a few of the common issues St. Louis homeowners experience with aging basement windows. If you’re considering basement window replacement, it’s the perfect opportunity to upgrade not only the window itself but the safety and value of your home by installing an egress window.

At Cornerstone Structural Repair & Waterproofing, we specialize in basement window replacement and egress window installation in the St. Louis area. With our expert service and installation you can feel confident your investment will protect your home for decades to come.

Common Problems with Old Basement Windows

Many homeowners in St. Louis replace basement windows due to ongoing issues such as:

Water Leakage: Older basement windows often allow water to seep in, creating mold and structural damage.
Energy Loss: Outdated windows can cause drafts, driving up energy costs year-round.
Security Risks: Weak, rusted, or broken frames provide easy access for intruders.
Poor Natural Light: Small, outdated basement windows limit the light entering your lower level, making it feel dark and uninviting.
Non-Compliance with Safety Codes: Bedrooms or living spaces in basements require a safe exit in case of emergencies, which many older windows do not provide.

These are just a few reasons basement window replacement is often necessary. And for many St. Louis homeowners, upgrading to an egress window solves all these concerns and more.

Why Choose an Egress Window for Your Basement Window Replacement

What is an Egress Window?

An egress window is a large, code-compliant window designed to provide an emergency exit from your basement. Beyond safety, they also add natural light, ventilation, and value to your home.

Benefits of Replacing Your Basement Windows with Egress Windows

Enhanced Safety: If you’re turning your basement into a bedroom, living room, or office, St. Louis building codes require an emergency escape route. Egress windows meet these standards, protecting your family in case of fire or other emergencies.
Increased Home Value: Homes with properly installed basement egress windows have higher resale value thanks to added living space and code compliance.
Better Light and Ventilation: Say goodbye to dark, stuffy basements. Egress windows flood your space with natural light and allow fresh air to circulate.
Improved Energy Efficiency: The modern egress window installation process includes proper sealing and insulation, reducing drafts and lowering your utility bills.
Water Protection: With a properly designed egress window well and drainage system, water intrusion is significantly reduced.

The Basement Window Replacement Process

When you choose Cornerstone for your basement window replacement in St. Louis, here’s what you can expect:

Inspection and Consultation: We evaluate your existing windows, discuss your goals, and assess whether an egress window is a suitable upgrade.
Permit and Code Compliance: We handle all necessary St. Louis permits and ensure the installation meets local building codes.
Window Well Installation (if needed): We excavate and install a durable, properly drained egress window well to prevent water intrusion and meet safety standards.
Foundation Preparation: Our experts carefully cut the foundation wall to create the proper opening without compromising the structural integrity of your home.
Window Installation: We install high-quality, energy-efficient egress windows that enhance your basement’s comfort and safety.
Waterproofing and Sealing: Every installation includes meticulous sealing, flashing, and waterproofing to keep moisture out and your home protected.

Best of all, your basement window replacement is backed by our life-of-structure warranty, so you can enjoy peace of mind knowing your investment is protected for the long haul.

Frequently Asked Questions About Basement Window Replacement

Do I have to replace my basement windows with egress windows?

If you plan to use the basement as a bedroom or living space in St. Louis, code requires at least one egress window to serve as an emergency exit.

How much does basement window replacement cost?

The egress window cost varies based on the size of the window, excavation needs, and features like window wells and drainage. Typical installations range from $2,500 to $5,000.

How long does basement window replacement take?

Most replacements, including egress window installation, take 1 to 3 days, depending on the complexity of the project and weather conditions.

What is an egress window well?

An egress window well is a reinforced space outside the window that keeps soil and water away while providing a clear path for exit. These wells often feature steps or ladders and are required for egress windows below grade.

Upgrade Your Basement with Cornerstone’s Expert Window Replacement Services

Whether you’re looking to replace failing basement windows or want to upgrade your lower level with a safe, code-compliant egress window, Cornerstone Structural Repair & Waterproofing is here to help. With decades of experience serving St. Louis homeowners and our unbeatable life-of-structure warranty, we are the trusted choice for basement window replacement and more.

Contact us today to schedule a free consultation and discover how an egress window can transform your basement into a bright, safe, and valuable part of your home! Reach out online or call our team at 314-262-6277 to learn more.