Mills Window & Door

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Mills Window & Door Mills Window and Door is your hometown expert for windows, siding and doors. Give us a call today!

With over 25 years of Window, Door & Millwork industry experience in the St. Louis and surrounding area, Mills Window & Door is known for the quality, value, and excellent customer service that we provide our residential clients. Our knowledgeable and professional staff will go the distance to ensure your Window and Door purchase and installation meets and exceeds your standards. From the initial consultation, throughout the selections and purchase process, through installation and for years to come, you will find the staff at Mills Window and Door ready and willing to serve your replacement Window, Low-Maintenance Vinyl Siding, & Patio Door needs. We will also take the time to properly educate you on our complete line of products, so that you can be certain you are choosing the right products and materials, at a price you can afford.

Autumn breezes are here! Feel a chill near your windows? Energy-efficient replacement windows keep warm air inside and h...
10/23/2026

Autumn breezes are here! Feel a chill near your windows? Energy-efficient replacement windows keep warm air inside and heating bills down. Get your home ready before temperatures drop. Have you checked your windows for drafts this fall?

Enjoy natural light and outdoor views through every season with smooth-gliding patio doors. Our patio door systems featu...
10/22/2026

Enjoy natural light and outdoor views through every season with smooth-gliding patio doors. Our patio door systems feature corrosion-resistant tracks and durable frames designed for easy maintenance. Does your patio need a refreshed look?

Looking for siding that stands up to midwest winters? We install James Hardie fiber cement and LP SmartSide engineered w...
10/17/2026

Looking for siding that stands up to midwest winters? We install James Hardie fiber cement and LP SmartSide engineered wood siding to deliver long-lasting protection and curb appeal. What exterior updates are on your home wish list this season?

Your front door is the first thing guests see when they visit. Custom entry doors from Mills Window & Door combine lasti...
10/09/2026

Your front door is the first thing guests see when they visit. Custom entry doors from Mills Window & Door combine lasting performance with premium craftsmanship, built to fit your home’s existing openings with no extra wall construction needed. Ready to refresh your entryway before the holidays?

As temperatures drop across St. Louis, old, drafty windows can drive up your winter heating bills. Our energy-efficient ...
10/08/2026

As temperatures drop across St. Louis, old, drafty windows can drive up your winter heating bills. Our energy-efficient vinyl and composite replacement windows help keep warm air in and cold air out. With over 25 years of local experience, we help you find the right fit for your home and budget. Are your windows ready for the winter chill?

Fall is the time for exterior updates! Whether you need new windows, siding, or patio doors, our design consultants are ...
10/02/2026

Fall is the time for exterior updates! Whether you need new windows, siding, or patio doors, our design consultants are here to find the perfect fit for your home and budget. Call us at 314-429-7000 for your free consultation and estimate. Let’s get started on your dream home!

Wood windows are unmatched for natural beauty and are historically approved for many St. Louis neighborhoods. Featuring ...
10/01/2026

Wood windows are unmatched for natural beauty and are historically approved for many St. Louis neighborhoods. Featuring low-maintenance cladding on the outside and warm wood interiors, they enhance any home's decor. Ask about our staining and painting options today!

With over 25 years of experience in the St. Louis area, Mills Window & Door is committed to making your home improvement...
09/25/2026

With over 25 years of experience in the St. Louis area, Mills Window & Door is committed to making your home improvement project as easy as possible. We work with major manufacturers to get you the best quality at the best price. See why your neighbors choose Mills!

Strength meets beauty with our composite windows. They combine the low-maintenance benefits of vinyl with the classic lo...
09/24/2026

Strength meets beauty with our composite windows. They combine the low-maintenance benefits of vinyl with the classic look of wood, making them some of the strongest products on the market. Perfect for contemporary styles, including black exterior and interior finishes!

Boost your home's protection and style with 40% OFF new siding! We offer James Hardie and LP Smartside—the leaders in hi...
09/18/2026

Boost your home's protection and style with 40% OFF new siding! We offer James Hardie and LP Smartside—the leaders in high-end engineered wood and fiber cement siding. Experience exceptional value and remarkable service from your hometown experts. Request your free quote today!

Address

1860 Fenpark Drive
Fenton, MO
63026

Opening Hours

Monday 8am - 4pm
Tuesday 8am - 4pm
Wednesday 8am - 4pm
Thursday 8am - 4pm
Friday 8am - 4pm

Telephone

+13144297000

Website

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