Lansing Building Products

Our Portsmouth branch is located at 240 West Road, conveniently located right off Interstate 95 and just off Route 1. West Road runs parallel to Route 1, and we are approximately halfway between Market basket and Water Country.
We stock CertainTeed, Mastic, and Emerson siding and accessories. We are well stocked in both steep slope and commercial roofing materials. We proudly sell Harvey windows, Andersen windows, ProVia storm windows, ProVia storm doors, and Therma-Tru entry doors. We are your leading one stop shop for all exterior building products proudly serving from the New Hampshire Seacoast to New Hampshire’s White Mountains to southern Maine.
Sufficiently stocked products are all warehoused under roof and ready to be either will-called or delivered as quickly as next day if ordered by 2 p.m.