Business Details
12 Years
experience
Your Trusted St. Louis Window & Door Contractor
STL Windows and Doors is a family-owned and operated window and door installation company serving St. Louis and surrounding areas. Founded in 2014 by Andrew Lombardozzi, a carpenter with over 15 years of experience, our team combines decades of expertise with a commitment to exceeding industry standards. We specialize in ProVia windows and doors, offering ENERGY STAR-certified products backed by a limited lifetime transferable warranty. Our 10-year workmanship warranty reflects confidence in our in-house certified installers, who deliver precision and care on every project. With a 4.8-star rating from 156 reviews, we prioritize competitive pricing, transparent communication, and personalized service.Our processfrom free estimates to post-installation inspectionsensures minimal disruption and maximum satisfaction. As a HomeAdvisor Top Rated and Elite Service provider, we take pride in transforming homes across Saint Louis, Saint Charles, Jefferson, Franklin, and Lincoln counties.
Services
Window Replacement
Door Replacement
Window Installation
Door Installation
Window Cleaning
ProVia Windows
Entry Doors
Storm Doors
Patio Doors
Window Repair
Details
- Year established: 2014
Highlights and features
- We offer over 65 years of combined experience in window and door installation.
- Our team consists of certified ProVia installers with specialized training.
- We provide a 10-year workmanship warranty on all installations.
- Our ProVia products are ENERGY STAR certified for maximum efficiency.
- Family-owned business with a 4.8 rating from 156 customer reviews.
What people say
Outstanding trim work
Professional and personable
Clean and precise
Quality made products
Locally owned pride
Services
Window Replacement
STL Windows and Doors specializes in ProVia window replacement, offering energy-efficient, American-made products tailored to enhance home comfort and aesthetics. Our services include double-hung, slider, picture, and garden windows, all installed with precision by certified professionals. Backed by a 10-year workmanship warranty, we ensure durability and customer satisfaction while improving energy efficiency and property value.
Door Installation
We provide expert installation of ProVia exterior doors, including steel, fiberglass, storm, and patio options. Our doors combine security, energy efficiency, and style to elevate curb appeal and home value. Each installation is performed by trained professionals, ensuring a perfect fit and long-lasting performance. A 10-year workmanship warranty guarantees quality and peace of mind for homeowners.
Window Cleaning
Our sister company, STL Window Cleaners, offers professional window cleaning for residential and commercial properties. Services include deep cleans and maintenance plans to maintain clarity and appearance. Using eco-friendly solutions, we ensure streak-free results that enhance the visual appeal of homes and businesses across Greater St. Louis.
ProVia Products
As a ProVia Platinum Dealer, we offer the full line of ProVia windows and doors, known for their durability, energy efficiency, and customization. Products feature insulating glass, Low-E coatings, and foam-filled frames to withstand St. Louis weather. Our partnership ensures access to industry-leading warranties and cutting-edge designs that meet both aesthetic and functional needs.
Financing Options
We provide flexible financing solutions to make home improvements accessible. Options include cash discounts and same-as-cash financing, allowing homeowners to upgrade windows and doors without upfront financial strain. Our team guides clients through available plans during free consultations, ensuring transparency and affordability for every project.
People
Andy Lombardozzi
Owner
Andy Lombardozzi founded STL Windows and Doors in 2014, leveraging 15 years of hands-on experience in window and door installation. Trained by his father, a 40-year industry veteran, he leads a team committed to quality and customer satisfaction.
Tom Lombardozzi
Installer
Tom Lombardozzi brings skilled craftsmanship to every installation, ensuring precision and adherence to industry standards. His expertise contributes to the team's reputation for reliable, high-quality service.
Tony Lombardozzi
Installer
Tony Lombardozzi specializes in window and door installations, combining technical skill with attention to detail. His work reflects the company's commitment to excellence and customer-centric service.
Chelsea Lombardozzi
Office Manager
Chelsea Lombardozzi oversees daily operations, ensuring seamless communication and efficient project coordination. Her organizational skills support the team's ability to deliver timely, professional service.
Questions
What is the average cost of window replacement?
Window replacement costs range from $500 to $1,500 per window, depending on type, quality, and installation. Request a free estimate for accurate pricing.
Do you offer financing options?
Yes, we provide cash discounts and same-as-cash financing. Discuss available plans during your free consultation.
What areas do you serve?
We serve St. Louis, Saint Charles, Jefferson, Franklin, and Lincoln counties. Contact us to confirm service availability in your area.
What warranties are provided?
We offer a 10-year workmanship warranty and ProVia's limited lifetime transferable product warranty on all installations.
Are your installers certified?
Yes, our team consists of certified ProVia installers with specialized training to ensure quality and precision.
Can I replace windows in any season?
Yes, professional installation allows for window replacement year-round. Energy-efficient upgrades can be completed regardless of weather conditions.
Videos
Reviews (7)
Nicole Wehmeyer
Dec 27, 2021
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If you're looking for quality, fair pricing and great customer service you've found it. The entire process from beginning to end was pleasant. The reps are very knowledgeable and genuinely nice people. I never felt pressure during any step of the process and am so extremely happy with the final product. We'll be working with this company again for future updates and I'd recommend them to anyone. I must say, my absolute favorite associate was Hannah Lombardozzi. She along with her associate Troy installed our door. It was quick, clean and beautifully executed. I bet she's her parents favorite.
Glenn Bailey
Dec 02, 2021
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I can't say enough good things about this company and their professionalism. From the first meeting with Rob to the final clean up of the job, everything was great. Tony and his crew got here on time and worked efficiently all day. It's nice to finally find a company that really cares about not only their job, but their customers as well. I highly recommend them.
Chad Kreutz
Nov 26, 2021
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Hannah, Tony and Trey came out and installed all new windows and sliding patio door. The team was very personable and professional. They took the time to answer any questions I had and also went the extra mile to work through options specific and unique to my house. I really appreciated this attention to detail and care for the final product. I was referred this company and will 100% be referring in the future. Thanks!
Tony
Oct 15, 2021
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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!
Chaz & Amy Miller
Sep 21, 2021
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We got our original 1950s windows replaced by STL Windows and Doors a couple months ago, but it's taken us this long to write a review because we've been trying to think of a way to express how amazing this company is. The quality of the windows is superb. We live close to the interstate, and our new windows now keep about 99% of the sound out. They've kept our house so cool and comfortable over the hot summer. They're so smooth and easy to open and close and pop out to clean. Love, love, love them. The company itself is truly outstanding. From our salesman, Ben, to our team of installers - we
Timothy Patrick
Aug 20, 2021
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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.
Lisa Schoenherr
Jul 15, 2021
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Amazing experience from start to finish! 22 windows plus a new front door installed and we couldn't be happier. Hannah, Tony and Trey were professional and friendly throughout the three day install. They welcomed any questions and left the house very clean at the end of each day. Very pleased with the quality of the windows. They open and close so easily. Our house is noticeably cooler, even on extremely hot summer days. Our 2nd story is now a comfortable place to be! Thank you STL Windows and Doors.
