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The Door and Window Replacement Experts in Manchester, MO

STL Windows and Doors has been a trusted provider of premium window and door replacement in Manchester, MO, since 2014. Our experienced team is known for delivering high-quality installations that are both affordable and efficient.

In a crowded market, what sets us apart is our reliable service, validated by continuous 5-star feedback and solid warranties. We’re committed to bringing you value with cost-effective, energy-saving products, all installed by our dependable in-house experts.

Our Clients Love Our Professional Installation Service!

Since starting over ten years ago, we’ve set out to do more than just meet the standard; we aim to make a real difference for your home. Our customers often tell us they feel like part of the family, thanks to the respect and attention we give to each project.

Our commitment is straightforward: to offer you efficient, good-looking products installed with precision and backed by dependable support. With us, you’re getting a team that combines the latest techniques with a genuine passion for what we do, ensuring your satisfaction at every step.

Our Customer Reviews


Get To Know Us

We’re a family-owned and operated window and door contractor serving Manchester, MO, and surrounding cities. Founded by Andrew Lombardozzi, a carpenter by trade, Andy has over 15 years of windows and doors installation experience. We have recruited the best skilled and dedicated men and women to form the STL Windows and Doors team.

We’re Accredited and Highly Rated

As a Platinum ProVia dealer & certified installer, we have proven our commitment to consistent quality. Homeowners in search of superior products consistently choose us for their needs.

A Rating with Angie's list
HomeAdvisor Top Rated
A+ Rating with BBB
  • In-house, factory-trained installers
  • An impressive selection
  • Proven track record
  • Removal of old windows
  • 10 Year workmanship warranty
  • Free in-home consultations
  • Unrivaled beauty
  • On-time, friendly, and reliable staff
10 Year Workmanship Guarantee

10-Year Workmanship Warranty

We partnered with the top window and door manufacturer (Provia), which builds with integrity and provides limited lifetime warranties on most of their products. We proudly offer one of the most attractive window replacement warranties in town.  Yes, we’re so confident in the quality and skill of our window and door installers that we will back up our workmanship for a full ten years from installation.  You can trust us to provide quality, value, and workmanship.


We’re proud to offer the best in value windows and doors.

Replacement Windows

Our highly trained window installation pros have years of expertise in energy-efficient replacement window projects. Whether vinyl or wood-clad vinyl, we take great pride in our workmanship and carefully treat each customer’s home from start to finish.

Window Types


We offer professional-grade vinyl, fiberglass, steel entry, storm, and patio doors that meet top industry standards for durability, security, energy savings, and style. Our doors are completely customizable in size, finish, hardware, and design to match your vision.

Door Types


Check Out PROJECT PHOTOS FROM Around Manchester, MO

Design, Order, Install, Inspect



Talk With Pro

Through a free, no-obligation estimate, you’ll share your needs with a professional who will, in turn, set up a time to meet with you in your home.



While onsite, we’ll answer questions, show you many sample products, and take all the necessary measurements to assemble an estimate.



With all the details in hand, we’ll draft, polish & deliver a thorough competitive estimate, including transparent pricing & installation details.



We’ll work excellently to complete the job on time & within the budget, respecting your home & family while installing at the highest level of quality.

All The Benefits Of Replacing Your Windows

According to EnergyStar “Heat gain and heat loss through windows are responsible for 25%–30% of residential heating and cooling energy use.” We have found that upgrading our clients to energy-efficient windows boosted comfort, reduced their energy bills by 9 to 13 percent, and blended their home’s historic charm with modern efficiency.

Manchester Homeowners See Real Value with Our Services!

Over the past two years, home values in Manchester have risen by nearly 20%, a trend that underscores the solid investment of upgrading your windows. According to, homeowners can anticipate recouping about 78% of the cost of window replacements at sale time.

For those replacing single-pane or inefficient windows, the savings is even more compelling. Manchester residents can expect to save between $101 and $583 annually on their energy bills, with an average saving of $265. This not only means more money in your pocket but also a significant reduction in your home’s energy consumption. (Take that Ameren and carbon footprint).

For Missouri residents, it appears that for the year 2024, a small $1200 tax credit is still available. ($250 per door max $500), (windows max $600) and home energy audits ($150).

Common Reasons Homes In This Area Need New Windows

Manchester’s architectural diversity, from the modern apartments and homes in Twin Oaks to the charming, historical residences in South and East Manchester, presents unique challenges and opportunities. Many homes, especially those built between 1940 and 1969, boast distinct character but often come with less efficient, outdated windows.

In our experience, these common reasons prompt homeowners to consider replacing their outdated or failing windows:

If your current windows use old tech and lack multiple Low-E coatings, heat can pass through the glass – forcing your HVAC system to work harder. Upgrading to Energy Star-rated double-paned windows provides better insulation.

Foggy glass or condensation between window panes indicates failing seals and the loss of argon gas. Allowing excess moisture buildup can lead to rot, mold, and significant structural issues over time. We’re ready to assist with practical solutions.

Modern window technology effectively helps dampen unwanted outside noise pollution. If you currently hear a lot of street noise, replacing it with advanced noise-reducing windows will restore peace and quiet back into your home.

Over years of use, window mechanisms can begin sticking or not working smoothly. Installing new replacement windows can restore effortless and reliable functionality, ensuring ease of use.

Indoor-Drafts from broken window seals

Dated, cheaply made, or improperly installed windows allow airflow to pass around weather stripping, causing a breeze or noticeable change in interior temperature.

Schedule a free inspection to have us inspect your windows. A window specialist will give an honest opinion if you need simple repairs or if it’s time to invest in replacement windows.

Contact Us

Opening Times:

Monday 9:00 AM–4:00 PM
Tuesday 9:00 AM–4:00 PM
Wednesday 9:00 AM–4:00 PM
Thursday 9:00 AM–4:00 PM
Friday 9:00 AM–4:00 PM
Saturday Closed
Sunday Closed

Call (314) 277-5952


From Manchester, travel north on I-270 North, then West on I-70, then North on Hwy 141, then left on Lakefront Drive.

Directions to STL Windows and Doors

If you need window installation (or door) across Manchester, count on us to deliver a satisfying experience replacing your windows and doors.

  • Affton
  • Arnold
  • Augusta
  • Ballwin
  • Barnhart
  • Brentwood
  • Bridgeton
  • Cedar Hill
  • Chesterfield
  • Clayton
  • Concord
  • Cottleville
  • Crestwood
  • Creve Coeur
  • Dardenne Prairie
  • De Soto
  • Defiance
  • Des Peres
  • Earth City
  • Ellisville
  • Eureka
  • Fenton
  • Festus
  • Flinthill
  • Ferguson
  • Florissant
  • Foristell
  • Frontenac
  • Glencoe
  • Gray Summit
  • Grove
  • Hazelwood
  • High Ridge
  • Hillsboro
  • House Springs
  • Imperial
  • Kirkwood
  • Labadie
  • Ladue
  • Lake Saint Louis
  • Lemay
  • Lowry City
  • Manchester
  • Maryland Heights
  • Mehlville
  • New Melle
  • O’Fallon
  • Oakville
  • Old Monroe
  • Olivette
  • Overland
  • Pacific
  • Pevely
  • Richmond Heights
  • Saint Albans
  • Saint Charles
  • Saint Louis
  • Saint Peters
  • South County
  • St. Paul
  • Sunset Hills
  • Town and Country
  • Troy
  • Union
  • Valley Park
  • Villa Ridge
  • Warrenton
  • Warson Woods
  • Washington
  • Webster Groves
  • Weldon Spring
  • Wentzville
  • Wildwood
  • Winfield

Common Questions

Here are some frequently asked questions about fiberglass entry doors.  If you have other questions, please get in touch with us!

The average window replacement cost in Manchester, MO, ranges from $500 to about $1,500 per window, with an average of $800. It all depends on the type of window you are interested in. We suggest premium-grade Provia windows that resist Manchester’s extreme cold and heat spells. You may see quotes based on United Inches of Glass, but installation costs are more related to the quantity of the window frames installed. It is best to use our free estimate for an accurate price quote.

Most experts agree that you will benefit by replacing all your windows at once if you have the budget. If your home is older than 20 years old, it may be time to start budgeting for a complete window replacement in your home.


When you’re ready, request a quick and free quote for replacement windows or doors by scheduling a no-cost consultation with a window and door replacement specialist.

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 coupon at the time of scheduling your free in-home consultation.