Quality, Affordable Window Installation

newly installed windows on a two-story house with tan brick facade and two dormer windows.

Is it time to replace the windows of your O’Fallon home? Replacement windows offer increased energy efficiency, security, comfort, and beauty.

When it’s time for window replacements, it’s important to get the desired results and quality by working with a reliable and reputable window company.

At Zen Windows St. Louis, we combine high-quality products and a customer-driven approach with a hassle-free sales process intended to make buying windows an exciting process with satisfactory outcomes.

Contact Zen Windows today to learn more about window replacement and installation in O’Fallon, MO.

Window Styles We Install for Your Home

At Zen Windows St. Louis, we offer a full range of replacement window styles to fit your home’s needs. We’re also experts in the installation and replacement of all the windows we sell. Whether you want to put new vinyl windows in your kitchen, bathroom, or living room in your O’Fallon home, we have many different options, including:
  • Double-hung windows have two operable panes that slide up and down to open from the top or bottom.
  • Casement windows have right- or left-side hinges that allow them to open by swinging outward, like a door.
  • Slider windows open by pushing one pane horizontally, from left to right, and vice versa.
  • Awning windows have hinges at the top sash, letting them open by swinging outward.
  • Bowbay windows protrude out from a home’s structure. They tend to include one larger picture window flanked by double-hung or casement windows.
  • Hopper windows have bottom hinges, allowing them to swing inward and down, so they open like an oven door.
  • Round-top windows, also called half-arch windows, have curved arches at the top sash.
  • Picture windows don’t open, so they can be much larger than other window types, allowing for excellent views of the outdoors.

Want to learn more about our window styles? Call Zen Windows St. Louis today or contact us to get started.

Our Line of Energy-Efficient Windows

At Zen Windows St. Louis, we offer our customers high-quality, energy-efficient windows from top manufacturers. Our premium quality windows offer an energy-efficient design and added insulation to maintain comfort and prevent drafts.

Quality vinyl windows are long-lasting, fit to any size window opening, and are highly versatile. They require substantially less upkeep than wooden windows and offer superior thermal properties.

Our high-quality, energy-efficient window options for O’Fallon homes offer:Graphic showing how foam insulates window sills.

  • Double- or triple-pane glass
  • High-performance low-E coating
  • Spacer options
  • Foam insulation
  • Wool-pile weatherstripping

Contact us today for a hassle-free quote on high-quality replacement windows in O’Fallon, MO.

Entry Door Installation & Replacement

Brown wood and glass double front door, with right door partially open. Decorative glass design.High-quality replacement entry doors offer enhanced security, curb appeal, energy efficiency, and comfort.

  • Front doors: Browse our incredible selection of top-rated front doors available in hardwood, fiberglass, steel, and aluminum.
  • Sliding glass doors: Enjoy a great view, natural light, and easy access to your porch with a high-quality sliding glass door from Zen Windows.

Contact our Zen Windows team at (314) 399-0856 today to request a hassle-free quote for replacement doors in the O’Fallon area.

Choose Zen Windows as Your Trusted Window Company in O’Fallon, MO

When it’s time to upgrade windows or doors for your home, rely on the local experts at Zen Windows for a painless, streamlined experience.

When you select window installation with Zen Windows St. Louis, you can count on:

Request a quote or schedule window replacement in O’Fallon by calling Zen Windows at (314) 399-0856.