How Much Does an Egress Window Cost in St. Louis?
How Much Does an Egress Window Cost in St. Louis?
Most egress window projects in the St. Louis area run between $5,500 and $14,500. That is a big range but where your project falls in that range depends mainly on several factors: access for equipment used for installing the window, which window well you choose, the window itself (think “off the shelf” or “custom window”), and whether the opening sits above or below grade.
Location
Where the window goes shapes how much work it takes to install it. An open side yard with easy access keeps the project simpler, while a spot near a driveway, patio, deck, utility lines, or established landscaping takes more care to dig around and restore, which adds to the cost. Additionally, an egress window that sits down from a hill should be carefully considered because the risk of the window flooding may increase.
Window Well Choice
An egress window that sits below ground level needs a window well to hold back the soil and give someone room to climb out. Wells range from inexpensive plastic wells, sturdy galvanized steel or even high end composite and stone-look designs, and options like covers and built-in ladders are part of that choice too. Sometimes the well may even be built by a landscaper using various landscaping stones. Those would typically be more expensive than the range previously mentioned. The style you pick affects both the look from your yard and the final price.
Above or Below Grade
An opening that sits mostly above the ground outside needs less excavation and a smaller well, or sometimes none at all. A window placed below grade means digging down alongside the foundation, installing a full-depth well, and making sure water drains away from it, which takes more material and labor.
What’s Typically Included
An egress window project in this range generally covers an assessment of your basement and the best spot for the window, obtaining the permit from the local municipality, cutting the foundation wall to the size building code requires for emergency escape, excavating and setting the window well with proper drainage, and installing the window. Following the installation, backfill and regrade should be included. Every home is different, so your project may look different from a neighbor’s even at a similar price point.
Getting an Accurate Number
Because every basement is different, the only way to know exactly where your project falls in that $5,500-$14,500 range is a firsthand assessment. Our team evaluates the location, grade, and window well options before providing a detailed quote.
Frequently Asked Questions
Does Financing Affect What I Pay Upfront?
No. Financing spreads the cost of your project over time rather than changing the total price. Stratum partners with lending institutions that often offer zero or low-interest financing options, subject to credit approval, so a $5,500-$14,500 project doesn’t need to be paid in full upfront.
Is the Cost Estimate Free?
Yes. Every egress window quote starts with a free home inspection, where our team assesses the location, grade, and window well your project needs before giving you a firm number.
What Else Can Affect the Final Price Beyond Location, Window Well, and Grade?
Site-specific factors like soil conditions, whether your foundation is poured concrete or block, and how much interior finishing surrounds the new opening can all shift the final price within the range. This is part of why a firsthand assessment gives a more accurate number than a general estimate.
