Brentwood, MO Window and Door Replacement
STL Windows and Doors installs ProVia replacement windows and exterior doors for homeowners in Brentwood, Missouri.
Most Brentwood homeowners barely notice when their windows stop working as hard as they used to. Then comes the first cold snap, and suddenly there’s a draft near the living room window you can’t ignore. Or your front door starts to look tired compared to the homes being freshly updated around you.
Window and door replacement in Brentwood is one of the smartest investments you can make in this neighborhood. STL Windows & Doors is a local St. Louis area company serving homeowners right here in St. Louis County. We offer free estimates, honest recommendations, and professional installation backed by a 10-year workmanship guarantee.
Brentwood, MO Window Replacement
STL Windows & Doors provides replacement window services throughout Brentwood for homeowners and real estate professionals ready to upgrade aging or underperforming windows.
Whether you are dealing with foggy glass, stuck sashes, or windows that bleed cold air every winter, we will help you find the right fit, style, and efficiency level for your home and budget.
Brentwood, MO Door Replacement
STL Windows & Doors handles door replacement throughout Brentwood for homeowners and property owners looking to improve security, curb appeal, and everyday function.
From entry doors and patio doors to sliding glass doors and exterior replacements, we work with duplexes, single-family homes, and other residential properties that need standard-sized or custom-fit solutions.
Why Choose STL Windows & Doors
- Family-owned and operated: We are not a national chain. Every project gets personal attention from people who care about their reputation in this community and yours.
- 10-year workmanship guarantee: We back every installation with a full decade of labor coverage. If something is not right with our work, we come back and fix it.
- Free in-home consultations: You get a no-pressure visit where we walk through your options, answer your questions, and provide a clear estimate before any decision is made.
- Over 60 years of combined experience: Our team has worked on St. Louis area homes across every style and era, so we know what to expect when we show up at your door.
- A+ rating with the BBB: Our reputation speaks for itself, and you can verify it before you ever pick up the phone.
What Do Brentwood Customers Say?
These are Google reviews from our customers, quoted exactly as they were written. Our full Google profile and our Better Business Bureau record are both public, so read the rest of them rather than taking our word for anything on this page.
★★★★★
Great customer service from the beginning to the end. The sales tech was extremely knowledgeable. The technicians arrived on time and cleaned up when the install was completed. I will definitely use them again for future home projects.
shantana herd
Google review
★★★★★
We love out new front door! Tony was friendly, professional and did an amazing job installing it. Thank you StL Windows and Doors!
Cindy Butler
Google review
★★★★★
Andy and his team are first class in every way. After bids from several other window companies, the decision was clear to use STL Windows and Doors. Andy was honest and sincere during the sales process giving us the peace of mind we needed to place the order. The entire team has been awesome with communication and follow through, and the finished product looks amazing. I wish we had found them first and saved ourselves a few hours of sales pitches by the other companies.
Marcie Boyle
Google review
Why New Windows and Doors Benefit Brentwood, MO Homeowners
Brentwood’s housing stock tells a clear story. According to Point2Homes, the median construction year for homes here is 1956, and over 16 percent of homes were built before 1940. That means a large portion of the neighborhood is running on windows and doors that are decades past their best performance.
Older frames, single pane glass, and worn weatherstripping let in cold air, outside noise, and moisture. Brentwood sits close to I-64 and I-170, two of the busiest corridors in the region, so road noise is a real quality-of-life issue for many residents near those routes.
With home values in Brentwood averaging around $273,254 according to Zillow, buyers here pay attention to curb appeal and condition. Energy Star certified windows can reduce energy costs by roughly 12 percent, and according to the Zonda 2025 Cost vs. Value Report, a steel entry door replacement can recoup up to 216 percent of its cost, making these upgrades both comfortable and financially sound.
Design, Order, Install, Inspect
Our Simple But Proven Process
Talk with a Pro
Your first conversation is relaxed and pressure-free. We listen to what is bothering you about your current windows or doors, what you are hoping to achieve, and any budget considerations you want us to work around.
Onsite Assessment
We come to you. Our installer walks through your home, takes precise measurements, and looks at how each opening is framed, sealed, and sitting so nothing gets overlooked before product selection begins.
Deliver Your Estimate
You receive a clear, itemized estimate with no vague line items or surprise costs. We explain what we recommend, why we recommend it, and what other options exist so you can decide with confidence.
Completed Window and Door Projects
Curious what a finished job actually looks like? Browse photos of real replacement window and door projects we have completed for homeowners across the St. Louis area and see the quality of work before you reach out.
Get a Free Quote
Ready to find out what new windows or doors would cost for your home? Request your free estimate today.
The fine print:
* Cash Discount. All discounts apply to MSRP costs. Discount available once per residence per term. No adjustments can be made on prior sales. Subject to qualifying credit approval. Mention the deal at the time of scheduling your free in-home consultation.
