anchored in Baltimore, Serving the East Coast.

13 warehouses. fully stocked with the brands contractors demand.

Let's Talk

Find Solutions for all Your Building Envelope Needs.

Our Brands


Our Recent Projects

  • Baltimore Sports Facilities Renovations
  • Supporting Growth in Raleigh
  • Us and Dr. Jones
  • Come to the Wharf, the Water is Fine
  • Calling Dr. Kenseal: Clio Medical Center Waterproofed
  • Improving the Environment for Education at Guilford Middle
  • Updating the Charlotte Motor Speedway
  • The Monumental City
  • Renewal to Harvard's Dunster House
  • The WakeMed North Healthplex Expands!

What We Do

From Massachusetts to North Carolina

Our 13 warehouses are strategically located across the East Coast.

View Locations

Recent News

  • Product Spotlight: MasterEmaco® T 1060DR and MasterEmaco T 1061DR
    We pride ourselves on being product experts, problem solvers, innovators and partners at A.H. Harris. We make it a priority to stay up to date on the latest products to hit the market and keep our valued customers on the front lines of innovation. In this product spotlight, you will read about two new products manufactured by BASF to reduce jobsite dust. ... read more
  • HD Supply Completes Acquisition of A.H. Harris
    ATLANTA, March 05, 2018 (GLOBE NEWSWIRE) -- HD Supply Holdings, Inc. (Nasdaq:HDS), one of the largest industrial distributors in North America, today announced that it has completed the previously announced acquisition of A.H. Harris Construction Supplies, a leading specialty construction distributor serving the Northeast, Mid- and South-Atlantic regions. ... read more


“Kenseal is a tremendous help. They delivered everything on time and as promised. We are always pleased with Kenseal’s service — they go above and beyond”

Jack Victor from JD Long Masonry

“We worked with Kenseal to give WakeMed a complete Tremco system above grade. This may have sealed the deal for us in getting this very important project. I got together with Kenseal early on and let them know what I anticipated our material requirements to be, and they made it happen. Throughout the project, Kenseal kept up with our material needs and made sure they had what we needed in stock. I look forward to the next project that we can work on together.``

Tom Wilson, Division Manager Moisture Control, SECO Architectural Systems, Inc.