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Custom Builder Supply Our showroom is available for browsing or picking up brochures but if you need to speak to a professional salesperson please call ahead to schedule an appointment. We specialize in windows and doors and other quality building components to the upscale housing market. We have a complete window and exterior door shop and assemble the entire line of THERMA-TRU door products.

We have custom millwork capabilities and can supply any architectural feature desired-including windows and doors. All of our products are guaranteed, and our own field service crew handles warranty issues and field adjustments.
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We are an independent supply company specializing in service to upscale builders, re-modelers and homeowners in the Williamsburg area. Established in 1988, we are owned by a group of local investors including several employees and customers. A major portion of our profit is returned to the further growth and development of the company and to the welfare of our thirty-plus employees. We invest heavily in our community by donating substantial time, materials and money to assist many worthwhile charities.
Custom Builder Supply awards credit to those who meet our terms and conditions listed on our standard credit application. Complete and mail to P.O. Box 413, Williamsburg, VA. 23187 or fax to (757) 253-7568. We cannot consider applications for credit that have not been filled out completely or if altered in any way.
Reviews (6)
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Royal
May 19, 2022
A traditional lumber yard with a large showroom featuring special order windows, doors and architectural details. A custom wood shop operates out of a separate facility off site. Great place to get a wide variety of PVC trim, #1 grade pressure treated lumber, and whatever other lumber & trim for building projects. Heads-up that this is not a particularly homeowner-friendly place.

While they will sell to individuals like me, they actively discourage small retail sales by their attitude and stated policy of catering to the building trades. That's the reason for the one star markdown.
Carpet Direct
May 02, 2021
By far the number #1 spot for trim, casings and lumber. Cricket at the contractors counter is always so helpful and goes the extra mile to make me feel like I'm top priority. The Entire delivery crew are also extremely professional. Always on time.
Larry Holcombe
Sep 06, 2020
Friendly service always willing to help even if they have to order it. These guys know their products. Good advice, if needed.
Charles T. White
Apr 12, 2020
Hometown feel and lumber and trim not found at the big box stores.
Larry Hennessy
Jun 17, 2019
Custom has always been very dependable! Missing Ed Funn, but dealing with the staff and office. Never a Hassel over the last 26 yrs. Highly recommend and usually will beat the price on the other guys.
Eric Trautner
Jun 18, 2017
I have been buying material from Custom Builders for 12 years! The prices are cheaper than most places and the staff are like family to me! I will be coming here for another 12 years!