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XL Building Products

XL Building Products

Window Sales & Installation
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About Us

XL Building Products is a premier supplier of luxury windows and doors to the metropolitan St. Louis area. Our unique approach and understanding of the challenges homeowners face when selecting windows and doors ensures that we provide our customers with a comprehensive solution for new construction, replacement, custom and historic applications. You can rest assured knowing that our experienced associates will work with you in the selection process giving you the “Good-Better-Best” recommendations that you need to determine the best-valued option for your project, style preferences and budget.

Services Provided

Custom Windows, Window Installation, Window Replacement, Window Sales, Wholesale Windows & Doors, Interior & Exterior Doors

Areas Served

Affton, Bellefontaine Neighbors, Breckenridge Hills, Cahokia, Crestwood, Dellwood, Ferguson, Glasgow Village, Glendale, Green Park, Hazelwood, Jennings, Lemay, Moline Acres, Normandy, Overland, Rock Hill, Saint Louis, Shrewsbury, St Louis, University City, Webster Groves, Belleville, Brentwood, Clayton, Concord, East Saint Louis, Granite City, Ladue, Maplewood, Mehlville, Olivette, Pagedale, Pine Lawn, Richmond Heights, Saint Johns, Sappington, Bel-Ridge, Berkeley, Castle Point, Centreville, Dupo, Fairmont City, Marlborough, Northwoods, Pontoon Beach, Riverview, Woodson Terrace


2012, 2013, 2014, 2015, 2016 Missouri Window and Door Wholesaler of the Year, BBB, Missouri Contractors Association, Wholesale Magazine Missouri Dealer of the Year-2008, 2009, 2010, 2012, 2013, 2015, 2016


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