Maryland Heights Window and Door Replacement
STL Windows and Doors installs ProVia replacement windows and exterior doors for homeowners in Maryland Heights, Missouri.
Maryland Heights homeowners know their community for its parks, its community center, and its convenient location near the Missouri River. What they don’t want is windows that fog up between the panes, let in drafts every winter, or become a struggle to open — or a front door that no longer closes securely. Those are usually signs the originals have reached the end of their useful life.
Window and door replacement is one of the most impactful upgrades you can make to a Maryland Heights home’s comfort, appearance, and long-term value. STL Windows & Doors has been helping St. Louis area homeowners through this process since 2014, offering honest recommendations, free estimates, and professional installation from start to finish.


Maryland Heights Window Replacement
STL Windows & Doors provides professional replacement window services throughout Maryland Heights for homeowners and real estate professionals alike. Whether you’re upgrading for comfort, efficiency, or resale readiness, we help you find the right windows for your home, your budget, and your goals. Every project is handled by our own trained installation team.
Maryland Heights Door Replacement
From front entry doors to sliding glass and patio doors, STL Windows & Doors handles door replacement throughout Maryland Heights for homeowners and property owners of all kinds.
Whether you manage a duplex or you’re refreshing a single-family home you’ve lived in for decades, we carry quality options that balance curb appeal, security, and energy efficiency in one clean install.

Why Choose STL Windows & Doors
- 10-year workmanship guarantee: Every job we do is backed for a full ten years. If something isn’t right, we’ll come back and make it right at no cost to you.
- In-house, factory-trained installers: We don’t subcontract — our own certified crew installs every ProVia product, so your warranty stays valid and everything performs the way it should.
- On-time and reliable: We show up when we say we will, communicate with you throughout the job, and treat your home with care from start to finish.
- Free in-home consultations: We’ll come to your home for a no-pressure visit, measure carefully, and walk you through your options honestly — no hidden fees.
- A+ rating with the BBB: Our Better Business Bureau rating reflects years of treating customers right, a standard we work every day to protect.
What Do Maryland Heights 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.
★★★★★
Andy and his entire team were amazingly organized and committed to the removal of and the installation of twelve windows and one bay window in one day…even as the weather presented issues. The new windows are fabulous and no doubt much more energy efficient than our previous 35 year old windows. The attention to installation detail was outstanding. I can't say enough great things about Lombardozzi Construction, from the their sales team and office staff to the installation team!
Tony
Google review
★★★★★
We had all of our windows and a sliding door replaced. They were able to finish in one day instead of two. Communication throughout the process was great. Anytime I called,, text or emailed they responded quickly. The installers were also great. They answered any questions I had while they were here. Their price point was also better than the competition.
Timothy Patrick
Google review
★★★★★
From start to finish, STL Windows and Doors provided first-rate service. From Rob in sales to installers Andy, Hannah and Tony, everyone was professional, respectful and a pleasure to work with. Best of all, they did an excellent job replacing our windows and front door. Beautiful work and product.
Novid Parsi
Google review
Why New Windows and Doors Benefit Maryland Heights Homeowners
Maryland Heights has a median home construction year of 1975, according to Point2Homes, meaning many area homes are now around 50 years old. Original windows and doors from that era were never built to last this long.
Windows from the mid-1970s typically used basic single- or double-pane glass with aluminum frames that have long since lost their seal. Replacing them with modern, energy-efficient windows can meaningfully reduce heating and cooling costs — ENERGY STAR certified windows are estimated to cut energy costs by roughly 12% compared to non-certified units.
Maryland Heights is also a solid, affordable real estate market, with a median home sale price of roughly $259,745 according to Redfin. At that price point, updated windows and doors are one of the most cost-effective ways to add lasting value to your home.

Design, Order, Install, Inspect
Our Simple But Proven Process
Talk with a Pro
Reach out by phone or online and we’ll connect you with someone who actually knows windows and doors.
Onsite Assessment
We come to your home at a time that works for you. We measure every opening carefully, taking note of your home’s specific construction.
Deliver Your Estimate
After the assessment, we put together a clear, detailed estimate with no mystery pricing. You’ll know exactly what you’re getting.
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.






















