Mills Window & Door

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.

Scraping, priming, and painting peeling wood siding every few years is a massive waste of your summer weekends and your ...
08/21/2026

Scraping, priming, and painting peeling wood siding every few years is a massive waste of your summer weekends and your hard-earned money. 🔨

We install top-tier vinyl and composite cladding from manufacturers like James Hardie and Alside that stay immaculate for decades. Watch our crews check the level and secure every single panel to ensure your exterior never sags, buckles, or lets moisture slip in.

The heavy sliding door screeches along a rusted track, sticking halfway and requiring two hands just to force it open to...
08/20/2026

The heavy sliding door screeches along a rusted track, sticking halfway and requiring two hands just to force it open to the backyard patio. 🚪

A faulty patio door acts as a massive thermal leak that dumps cool air straight outside. We fit custom, double-pane sliding doors that glide effortlessly with a single finger while locking tight against humidity.

You can keep spending your summer paying unpredictable, skyrocketing cooling bills, or you can take $100 OFF every singl...
08/14/2026

You can keep spending your summer paying unpredictable, skyrocketing cooling bills, or you can take $100 OFF every single window you replace this August. 🔑

Our late-summer special lets you upgrade to premium, energy-efficient window designs from top manufacturers with 18-month no-interest financing. Keep your hard-earned cash in your pocket while locking down lower utility costs for good.

This home used to spike to brutal numbers on July cooling bills before we replaced their cracking, faded exterior with w...
08/13/2026

This home used to spike to brutal numbers on July cooling bills before we replaced their cracking, faded exterior with wrapped, low-maintenance insulated siding and energy efficient vinyl windows. 🏡

Drop your best guess in the comments: what percentage savings did this family see in their cooling costs?

Upgrade your home comfort before the late-summer heat peaks with $100 OFF every single window plus 18-month no-interest ...
08/07/2026

Upgrade your home comfort before the late-summer heat peaks with $100 OFF every single window plus 18-month no-interest financing w.a.c.! 📉

Keep your savings intact while clearing out drafty panes.
Lock in this limited-time August special on any order of 3 or more windows from your favorite major brands.

MillsWindow.com

Completely reinvent your home's exterior with an incredible 40% OFF Siding through the entire month of August, plus 18-m...
08/06/2026

Completely reinvent your home's exterior with an incredible 40% OFF Siding through the entire month of August, plus 18-month no-interest financing w.a.c.! 🏷️

Stop putting off massive curb appeal improvements and high utility bills.
Get premium, low-maintenance siding from top manufacturers installed by our hometown team with zero financial strain today.

MillsWindow.com

Your front door is the literal center of your home's curb appeal, but it's also your primary line of defense against hig...
07/31/2026

Your front door is the literal center of your home's curb appeal, but it's also your primary line of defense against high summer cooling loss and security risks. 🚪

Whether you want a bold, contemporary fiberglass statement piece or a traditional wood entry, our design consultants help you map out the perfect layout for your budget—with zero sales pressure.

How many times a day do you walk past a specific window in your living room and feel a distinct, heavy wave of summer he...
07/30/2026

How many times a day do you walk past a specific window in your living room and feel a distinct, heavy wave of summer heat radiating inside? ☀️

If your existing window frames are hot to the touch on a 90-degree St. Louis day, your AC is constantly working to fight a losing battle. Drastic temperature spikes inside your house are a clear sign your window seals have completely failed.

You know that neighbor whose house always looks amazing? 🏡The lawn is nice.The landscaping is nice.But if we're being ho...
07/24/2026

You know that neighbor whose house always looks amazing? 🏡

The lawn is nice.

The landscaping is nice.

But if we're being honest, it's usually the siding that ties everything together.

Sometimes one upgrade changes the entire look of a home.

The best summer rooms sometimes aren't rooms at all. 🌞A beautiful sliding or folding patio door can help connect your in...
07/23/2026

The best summer rooms sometimes aren't rooms at all. 🌞

A beautiful sliding or folding patio door can help connect your indoor and outdoor living spaces while bringing in natural light and backyard views.

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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