Get a Free Estimate

Reach out to schedule your appointment. We respond promptly and come prepared to give you a clear, honest assessment.

How to reach us

Phone

(314) 399-2001

Best way to reach us for urgent questions

Email

jkeller@kellerwindow.com

We respond within 2 business hours

Office

O'Fallon, MO

Serving O'Fallon by appointment

Business Hours

Monday – Friday
8:30 AM - 4:30 PM
Saturday
Closed
Sunday
Closed

Get a Free Estimate

What happens after you submit

01

Submit Your Request

Right now

Fill out the contact form with your project details. The more you share, the better prepared we will be when we follow up.

02

We Review and Reach Out

Shortly after

We review your request and contact you to ask any clarifying questions and set up a convenient appointment time.

03

On-Site Appointment

At your scheduled time

We visit your home, assess the openings, and walk you through product options and scope. No pressure, just clear information.

04

Installation Day

Once scope is confirmed

Our crew arrives on schedule, completes the installation to certified standards, and leaves the work area clean before we go.

Get a Free Estimate