Windows in St. Louis, MO
Replacement windows chosen for comfort, efficiency and the look of your home, installed square and sealed tight.
- Exterior
- Homes and businesses
- One call, not five
One request. One expert. One call.
Prefer to type? Text your request to 314-270-2054.

Drafty, foggy or hard-to-open windows cost you comfort every day. Submit one request and one window specialist will contact you to measure, discuss styles and explain how installation works.
Glass package, frame material and installation quality all affect performance. A careful installer checks for rot, flashes the opening and insulates the gap so the new window actually performs the way it is rated.
Windows: what our partners handle
- Replacement windows for homes and businesses
- Picture, bay and bow windows
- Egress windows for basements
- Glass repair and seal replacement
- Storm windows and screens
- Trim and weatherproofing
Signs it is time to call
- Drafts or condensation between panes
- Windows that stick or will not stay open
- Rotting sills and frames
- Noise from outside you want less of
What happens after you ask
- 1
You submit once
Tell us what you need and where. It takes about a minute.
- 2
One expert contacts you
A member of our team reviews it and calls. Only one contractor will ever call.
- 3
Assess, estimate, work
Royal Window Company sends a licensed, independent, insured, vetted pro to assess, estimate and do the work.
About windows
Do new windows really save energy?
They can, especially replacing old single-pane or failing units. Your expert can explain what to expect for your house.
How long does installation take?
Many homes can be done in a day or two. Custom orders take longer to arrive.
Will several contractors call me?
No. Only one contractor will ever call about your request. You will not get a pile of calls and constant emails, and we never sell your information.
Who does the work?
A licensed, independent, insured and vetted partner contractor visits to assess the work, gives you an estimate and does the work if you decide to go ahead. See our Terms of Use for details.
Related services.
E-05ExteriorDoorsEntry, patio and interior doors fitted, weatherstripped and finished for a clean look and a tight seal.See the service
E-02ExteriorSidingVinyl, fiber cement and engineered wood siding installed over a properly flashed, weather-tight wall.See the service
I-15InteriorsBlinds and ShadesCustom shades, blinds and shutters measured, ordered and installed to fit each window.See the service
E-01ExteriorRoofingRoof repair, replacement and storm damage handled by a roofer who talks with you directly.See the service Guides that help you decide
Seasons and StormsRoof Warning Signs and Hail DamageWhat to look for from the ground, in the attic and after a storm.2 min read
Home Systems and GroundClay Soil, Foundations and Drainage in the St. Louis areaWhy water management matters as much as structure when it comes to your foundation.2 min read
Seasons and StormsStorm Damage Checklist for the St. Louis areaSafety first, then documentation, protection and calling the right pros after a severe storm.2 min read Available across St. Louis and the Metro East
Pick your community to see everything we do there.
