Expert Advice On Improving Your Home

10 Best Window Replacement Companies in O'Fallon, MO

Get matched with a top local pro.
Join more than 640 people who have gotten a free quote in the past week.

Written By David Cusick

Last Updated April 2024

Replacing your windows can be rather costly, but is an excellent way to increase the energy efficiency and value of your home. If your windows are drafty or damaged, 25–30% of your house’s heat or cool air could be leaking out, according to the Department of Energy. In O'Fallon, this can add up to an extra $387 per year on your power bills. If you're looking for a window installation company, you've found a great way to get started. Keep reading to discover the best window installers in O'Fallon.

Our Recommended Providers

Top Pick
4.9/5
  • Great quality
  • Free assesment
  • Timely Service
Best Customer Service
4.3/5
  • Great customer service
  • Transparent pricing
  • Award winning company
Most Customizable
4.0/5
  • Holds high customer ratings
  • Offers energy-efficient products
  • Provides a lifetime labor warranty

Top 10 Best Window Replacement Companies in O'Fallon

Renewal by Andersen

Renewal by Andersen Logo

Our Rating

User Rating

Write a Review
2446 Schuetz Rd, Maryland Heights, MO 63043 (314) 983-9977 renewalbyandersen.com

Good customer service

Price transparency

Timely service

Free assessment

Educational website

Services Offered

Skylights
Glass doors
Double-hung
Bay windows
Window replacement/installation

Champion Replacement Windows of St. Louis

Champion Replacement Windows of St. Louis Logo

Our Rating

User Rating

Write a Review
29 Cassens Ct, Fenton, MO 63026 (636) 764-0470 championwindow.com

Good customer service

Price transparency

Free assessment

Services Offered

Glass doors
Window replacement/installation
Double-hung
Bay windows

Window World of St. Louis

Window World of St. Louis Logo

Our Rating

User Rating

Write a Review
3600 Rider Trail S, Earth City, MO 63045 (314) 993-1800 windowworldstlouis.com

Educational website

Price transparency

Free assessment

Timely service

Good customer service

Services Offered

Vinyl frames
Glass doors
Custom window designs
Window replacement/installation
Double-hung
Bay windows

Glass Doctor of St. Charles, MO

Glass Doctor of St. Charles, MO Logo

Our Rating

User Rating

Write a Review
3910 Old Hwy 94 S Ste 105A, St Charles, MO 63304 (314) 962-4344 glassdoctor.com

Good customer service

Educational website

Price transparency

Services Offered

Window replacement/installation
Energy-efficient options
Glass doors
Custom glass
Window repair
Mirrors
Tempered glass
Glass repair
Glass showers

Jones Home Improvements

Jones Home Improvements Logo

Our Rating

User Rating

Write a Review
5305 5th St, Cottleville, MO 63304 (636) 317-1977 joneshi.com

Price transparency

Good customer service

Free assessment

Services Offered

Window replacement/installation

Mad City Windows & Baths

Mad City Windows & Baths Logo

Our Rating

User Rating

Write a Review
959 Harmsted Court, St Charles, MO 63301 (314) 396-6394 madcitywindows.com

Good customer service

Price transparency

Educational website

Free assessment

Services Offered

Vinyl frames
Glass showers
Window replacement/installation
Bay windows
Energy-efficient options
Double-hung

Floyd Glass & Window

Floyd Glass & Window Logo

Our Rating

User Rating

Write a Review
30 Triad South Dr, St Peters, MO 63304 (636) 922-3569 floydglass.com

Good customer service

Price transparency

Free assessment

Services Offered

Custom glass
Window repair
Window replacement/installation
Glass showers
Mirrors

Windows Doors & More LLC

Windows Doors & More LLC Logo

Our Rating

User Rating

Write a Review
3481 New Town Blvd, St Charles, MO 63301 (636) 724-5291 wdsmore.com

Price transparency

Educational website

Free assessment

Good customer service

Services Offered

Energy-efficient options
Window replacement/installation

Bath Planet of St. Louis & More

Bath Planet of St. Louis & More Logo

Our Rating

User Rating

Write a Review
2424 Hwy 94 South Outer Rd, St Charles, MO 63303 (636) 947-0177 bathplanetofstl.com

Free assessment

Educational website

Price transparency

Good customer service

Services Offered

Glass showers
Window replacement/installation

Home Services at The Home Depot

Home Services at The Home Depot Logo

Our Rating

User Rating

Write a Review
Home Depot, 6190 Mid Rivers Mall Dr, St Peters, MO 63304 (636) 223-5612 homedepot.com

Price transparency

Free assessment

Educational website

Good customer service

Services Offered

Glass doors
Glass showers
Window replacement/installation
Custom window designs
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on window replacement companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

How Much Does Window Installation Cost In O'Fallon?

The price of window installation or replacement is influenced by a number of factors, including the number and size of the windows, the materials you choose, and how difficult your windows are to access or install. On average, homeowners in O'Fallon should expect to spend about $280 per window*. Below are additional cost breakdowns. *Cost data based on sample pricing for window installation from multiple retailers and adjusted for local cost of living.

When To Replace Windows

Installing new energy-efficient windows can substantially boost your home's appearance, value, insulation, comfort, and noise reduction. Some clear indicators it's time for new windows include the following:

  • Cold air and drafts coming in through old, loose-fitting windows.
  • Condensation issues, fogging between window panes, or rotting window frames that allow moisture intrusion into the home.
  • Windows that are difficult to open, close, and lock properly due to wear and age.
  • High energy bills and discomfort due to poor insulation.
  • Outdated and inefficient window styles that reduce your house's curb appeal.

How To Choose a Window Company

Hiring an experienced window installation company contributes to a great experience and excellent results. Below, we outline the main considerations for selecting a qualified window installer.

Experience

Make sure you select an experienced local installer with a proven track record of successfully installing and replacing windows. Installers that have been operating locally for many years are more likely to have a deep knowledge of the local climate and local homeowners' needs. Get references from recent clients to confirm a company provides quality installations.

Certifications

Choose companies that have certifications from top window brands, and that have Fenestration and Glazing Industry Alliance (formerly AAMA) certification. Certification means they've received proper training in installation best practices. Make sure installers are staff, not subcontractors, and confirm that any technicians working on your home are certified.

Reputation

Spend time going through online reviews, checking the Better Business Bureau, and asking for local references. Review customer feedback to make sure that the company consistently delivers good workmanship and service. Steer clear of companies with complaints of shoddy or unfinished work.

Process

A good provider will give you a comprehensive project plan, well-outlined timeline, clear expectations, and an overview of all material and installation options. Avoid providers that offer unclear quotes or timelines. Ask for ongoing contact throughout, so you aren't caught off guard once the work begins.

Warranties

Seek out window installers that back their installations with guarantees and provide warranties on labor and materials. This demonstrates confidence in their work. Opt for companies with unlimited lifetime warranties that transfer to new homeowners.

Materials

Verify that your window provider works with trusted, long-lasting brands, offers energy-efficient window options, and fits your budget. Look for window options with design flexibility, good energy ratings, and enhanced UV protection, and check whether the materials come with their own manufacturer warranties.

Frequently Asked Questions About Window in O'Fallon, MO

In O'Fallon, the ideal time to install windows is during the late fall when the temperatures are milder, so the windows can seal and settle properly. A good local window installer in O'Fallon will be able to explain when the best time is to install windows on your home.

The right type of replacement windows for your O'Fallon home depends on when your home was built –the average house in O'Fallon was built around 1996. For older homes, you may want to consider energy-efficient windows such as double-glazed windows, which are made to keep your home cool in the summer and warm in the winter. Wood frames also have a classic look that's perfect for older homes. For more modern homes, you might want to think about vinyl windows, which are durable, affordable and have a modern look.

The types of window that usually last longest are ones constructed from vinyl or wood, with triple glaze for extra insulation. Vinyl windows are renowned for their durability and need minimal maintenance, and wood windows offer a more classic look. Tripling up on the glazing will help reduce heating and cooling bills in the long run.

The window installation process typically involves ordering and measuring the windows, preparing the surrounding area for installation, removing the old window, putting in the new one, and insulating the frame. Depending on the type of window being put in, additional steps might be needed.

In some cases, you can install your own windows, but it's better to hire a professional. It's important to consider the local climate when replacing windows, as it will have an effect on the process. For example, the temperatures in O'Fallon can reach an average high of 65, so you need to think about energy-efficient windows that can deflect from the heat. It's also important to get the measurements right and follow the instructions for installation. Hiring a professional for your window replacement project will guarantee that everything is done correctly.

Yes, most window companies offer financing options. Some installers offer low-interest or no-interest loans, although you may not qualify if your income is on the higher end, while other companies provide unique financing plans with agreements and conditions that vary depending on the project.

Other O'Fallon, MO Home Services