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Reveal new possibilities with new windows!

From full house packages to individual windows for upgrades, additions, greenhouses, etc.

New Inventory and Specials
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JUST DELIVERED: NEW WINDOW INVENTORY

Upgrade your windows before the winter chill sets in!  

Inventory Updated Regularly

Check Back Often 
Our warehouse is large and our window inventory rotates regularly.

We encourage you to come browse our 35,000 sq. ft of opportunities.

open 7 days a week
Window Frames Display

ALL BACK-LOT WINDOWS! 6’ X 6’ OPENING - $200 6’ X 6’ FIXED - $100

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10800 E. 54th Ave.
Denver, CO 80239

303-296-8090

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Hours:

Mon-Sat: 8 AM -5 PM

Sunday: 10 AM - 5 PM

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Privacy Policy >

​Closed: 

  • New Year's Day

  • Easter

  • Memorial Day

  • July 4th

  • Labor Day

  • Thanksgiving & Christmas

Extra Building Materials' Return Policy 

Extra Building Materials does not issue a refund for items purchased at the store. However, with a copy of your paid receipt, we will issue a store credit, less a 20% re-stocking fee, within 90 days of purchase. Please be certain to carefully measure your windows, doors, cabinets, etc., before making your purchase to avoid any problems when you get your items home. Please note that in most stores, offering building supplies to the public, all sales are final. We do provide a return option.​

Go build something beautiful

Home Improvement's Best Kept Secret ™ is Trademarked with the United States Patent Trade Office​

©2015-2026 Extra Building Materials, Inc.

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