MSI Building Supplies
Build to last. Build Island Tough.
At MSI we buy and sell only those products that can withstand the rigorous demands of our environment. They may not be the cheapest ones on the market, but you can be assured, they are the best products for our island.
Products, specs and techniques discussed here are meant as a guide only. Owners of this site assume no liability for and make no claim to the suitability of any products or information shown.
It is the sole responsibility of the owner or contractor to adequately test for suitability and application methods for a particular installation.
3814 Crown Bay, St. Thomas, U.S.V.I. 00802
Phone (340) 776-8800 Fax (340) 774-3170
Mon – Fri 7:30 AM – 5 PM
Warehouse 8 AM – 4 PM
Saturday 7:30 AM – 2:30 PM
Email us with your questions, orders for pick up or special order requests.
We will respond within 24 hours, Monday – Friday.
We are a family owned and operated company doing business on St. Thomas for more than 40 years. We understand the logistical challenges of building on an island and work hard to make the process easier for you.
At MSI we put our customers, and the quality of our products, first. Call today to find out how we can work with you.
MSI is an EDC eligible supplier.