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Your Premier
Company for window and door replacements in St. Louis and surrounding areas.

Beauty, Efficiency and Value all backed by over 23 years of experience & premier Andersen® Certified Installation, Service and Warranty.

(314) 399-2001

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Patio Doors

As a premier St. Louis patio door company, Keller Window & Door is your best choice. Whether it be a simple replacement door or complex design, Keller opens the door to endless possibilities.

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Looking for a St. Louis window replacement company that provides one-stop, start-to-finish service for your window replacement project? We offer you an easy and reliable complete replacement process, all in one place.

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WHOLE HOME

GET ALL YOUR WINDOWS REPLACED & SAVE. Take advantage of 18 month / 0% financing and no fake discounts! We stand behind our commitment to consistently offer unbeatable prices without the gimmicks.

Check these stunning photos of our latest window and door installations!

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After

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Window Installation

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Window Installation

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Door Installation

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Door Installation

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Robert- St. Louis, MO

“Keller Window & Door is a fantastic company to do business with. The service I had done was completed quickly and at a fair price. I would definitely recommend this company for window and doors.”

Vern & Steve- St. Louis, MO

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"John Keller gave us exceptional service. He didn't pressure us to buy replacements but gave us a good price to replace 2 rotten sash. Why buy whole windows when the remainder is good? He fulfilled all time estimates and his installation was quick and immaculate! We highly recommend him!"

Audrey- St. Louis, MO

"Keller Windows delivered an excellent product on time. Representatives and workers were courteous and professional. I will definitely use Keller Windows in the future."