About ASA Builders

ASA Builders Supply was founded by Asa Shapiro in 1952. We have been serving Southeast Michigan for over 66 years with a reputation as the largest single trim and door shop in the Metro Detroit area. Our “Trademark of Quality” is synonymous with our long and rich history in the Metro Detroit area for our selection of: Interior Prehung Doors, Bifolds, Mouldings, Closet Shelving, Custom Millworks, and Stair Parts all under a 55,000 square foot warehouse.

Our employees have many years of experience and are highly skilled in their workmanship. Our experienced sales force prides themselves by offering the highest level of customer service, which makes ASA number one in trim. Service, quality, knowledge and pricing are what we are known for. From Flint to Flat Rock, from Chelsea to Port Huron, our salesmen will come to your home and answer questions about your new home or remodeling needs.

ASA’s expansive inventory consists of oak, poplar and white pine. Exotic and domestic species such as cherry, maple, mahogany, walnut or beech can be special ordered in almost any profile you are looking for.

Some of the manufacturers we distribute for are Masonite Doors, Woodgrain doors and LJ Smith Stairs. Our staff at ASA Builders Supply will do all they can to make it a pleasure to do business with you.

For information on our products, you can click on the buttons in the header.  For information about our purchasing, click here.