Top Egress Window Replacement & Installation in Lees Summit, Missouri Ranked

Finishing your basement or adding a legal bedroom in Lees Summit requires more than just drywall and flooring-it demands a safe exit in case of an emergency. Egress window installation is a critical home improvement project that transforms a basement into safe, legal, and valuable living space. This guide explains the local requirements, process, and considerations for adding or replacing an emergency egress window, helping you connect with qualified professionals who understand Lees Summit's specific building codes.

One Source KC, LLC.

100 Electronics Pkwy, Belton, MO 64012

One Source KC, LLC. is a home improvement contractor based in Belton, Missouri, serving the Kansas City, MO area. They specialize in egress window installation, siding solutions, and full basement finishing. The company uses premium products like ProVia egress windows and James Hardie fiber cement siding, ensuring durable and safe home improvements. With 50 years of combined experience, One Source KC is locally owned, licensed, and insured, focusing on quality craftsmanship and customer satisfaction.

5.0

53 Reviews

Foundation King

4901 W 136th St, Overland Park, KS 66224

Foundation King is a family owned and operated foundation repair contractor based in Kansas City, MO. They provide a range of services including foundation repair, concrete repair, egress window installation, basement waterproofing, crawl space encapsulation, and carbon fiber crack repair. Serving the entire Kansas City metropolitan area as well as North Missouri and Topeka, Kansas, Foundation King focuses on maintaining the structural integrity of homes and businesses with skilled workmanship and customized solutions. The company has decades of experience and offers some of the best warranties in the business.

4.7

144 Reviews

Keystone KC LLC

1530 Duck Rd, Grandview, MO 64030

Keystone KC LLC is an egress window contractor based in Kansas City, MO. They offer a range of foundation and structural repair services, including settlement repair, helical piers, wall anchors, waterproofing, and the installation of egress windows. Their team applies engineering principles to secure building foundations and improve long-term stability. Keystone KC LLC also handles commercial projects and water management solutions. The company is known for careful excavation techniques that minimize disruption to existing landscaping and infrastructure.

4.8

36 Reviews

Columbia Glass & Window Co

1600 N Jackson Ave Apt 915, Kansas City, MO 64120

Columbia Glass & Window Co is a window replacement company based in Kansas City, MO. They specialize in custom windows and doors for both replacement and new construction projects. With 60 years of experience, they focus on designing and crafting quality windows and sliding glass doors tailored to client needs.

3.2

41 Reviews

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Understanding Egress Window Codes in Lees Summit

In Lees Summit, all egress window projects are governed by the International Residential Code (IRC), as adopted and amended by the city ¹. These aren't just suggestions; they are legal requirements designed to provide a secondary means of escape and rescue access from sleeping areas. The primary rule is that any room classified as a bedroom on any level, including a finished basement, must have a compliant emergency egress opening ^{2 3 4}. This applies even if the room isn't currently used as a bedroom but is designed as one. For other habitable basement spaces like family rooms or offices, the requirements can vary, but installing a compliant window is always the safest and most future-proof choice.

The specific dimensions are non-negotiable for code compliance. According to the 2018 IRC, which Lees Summit follows, an egress window must have:

• A minimum clear opening area of 5.7 square feet (or 820 square inches).
• A minimum clear opening height of 24 inches.
• A minimum clear opening width of 20 inches.
• A maximum sill height of 44 inches from the finished floor inside the room ^{5 6 7}.

Furthermore, the window must be operable from the inside without the use of tools, keys, or special knowledge. It cannot be blocked by security bars, bushes, or air conditioning units.

The Crucial Role of Window Wells

Since basement windows are below ground level, a window well is an essential component of any egress system. The well creates the open space outside the window necessary for escape and firefighter access. Code requirements for wells are just as important as the window itself:

• The well must provide a minimum of 9 square feet of horizontal area (typically 36" x 36").
• If the well depth exceeds 44 inches, permanent steps or a ladder must be installed to allow easy exit ^{5 8}.
• The well must be designed to drain properly to prevent water from pooling against the foundation and window.

Professionals will ensure the well is constructed from durable materials like galvanized steel, polymer, or masonry and is properly anchored to resist soil pressure.

Navigating the Permit Process with Lees Summit Development Services

Skipping permits is not an option for an egress window project in Lees Summit. Proper permitting ensures the work is inspected and meets all safety codes, which is vital for your family's safety and your home's resale value. The process is managed by the city's Development Services Department^{9 1}.

Here's a typical step-by-step overview:

1. Pre-Application Consultation: Before any work begins, it's wise to contact Development Services to discuss your specific project. They can clarify if your plans require a permit and what documentation is needed.
2. Plan Submission: You or your contractor will need to submit detailed plans. These usually include a site plan showing the window's location and drawings of the proposed window, well, and any structural modifications to the foundation wall.
3. Plan Review: City staff will review the submitted plans for compliance with the IRC, zoning ordinances, and any other local amendments.
4. Permit Issuance: Once the plans are approved, the permit is issued. Fees for this permit typically range from $100 to $300, depending on the project's scope and valuation ^{9 2}.
5. Required Inspections: Inspections are mandatory at critical stages, such as after the rough opening is cut and framed, and again at the final completion. Passing these inspections is the only way to receive final approval.

A reputable local installer will be familiar with this process and often handle the permit application and scheduling of inspections on your behalf.

What to Expect During Installation

Replacing an existing basement window with an egress unit or installing a brand-new one is a significant construction project. It involves exterior excavation and interior finishing work. A professional installation typically follows this sequence:

• Site Preparation & Excavation: The crew marks the location and carefully excavates the soil down to the foundation footing to create space for the window well.
• Cutting the Foundation: Using specialized saws, a new, larger opening is cut into the concrete or block foundation wall. This is a precise operation that requires knowledge of structural loads.
• Installing the Window Well: The well is placed in the excavation, leveled, and secured to the foundation. Proper drainage gravel and a drain pipe are installed at the bottom.
• Framing & Window Installation: Inside, a new rough opening is framed with pressure-treated lumber. The egress window unit (often a casement or sliding style for maximum clear opening) is then installed, sealed, and insulated.
• Finishing Work: Exterior grading is restored to direct water away from the well. Inside, the wall around the new window is finished with drywall, trim, and paint.

Cost Considerations for Egress Window Projects

The total investment for an egress window in Lees Summit can vary widely based on the complexity of the installation, the materials chosen, and the current condition of your foundation. It's important to budget for all components:

• Window & Well Kit: $500 - $2,000+
• Labor & Excavation: $1,000 - $3,000+
• Permit Fees: $100 - $300
• Additional Factors: Costs can increase if soil conditions are difficult, if extensive interior finishing is needed, or if structural support (like a new header beam) is required above the new opening.

Given these variables, a complete professional installation for a single egress window in Lees Summit often ranges from $1,500 to $5,000 or more^{9 2}. While this is a substantial investment, it directly increases the safety, legality, and square footage of your home.

Choosing the Right Window and Professional

Not every window type qualifies as an egress window. Casement and sliding windows are most common because their design maximizes the clear opening. When selecting a professional for this job, prioritize those with specific experience in basement egress work. They should:

• Be fully licensed and insured.
• Have a proven track record with the Lees Summit permit and inspection process.
• Provide a detailed written estimate that breaks down all costs, including materials, labor, and permit fees.
• Offer a strong warranty on both the window product and the installation labor.
• Be able to explain the code requirements and their plan for meeting them.

Taking the time to find a specialist ensures the job is done correctly the first time, keeping your home safe and compliant for years to come.

Frequently asked questions

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