Manufacturing

Mathews Brothers has been making window products for New England since 1854.
Our manufacturing plant in coastal Belfast, Maine uses state of the art equipment and materials to build traditional wood, vinyl, and contemporary composite windows
and doors.

At Mathews Brothers, we are always looking for new technology and unique components to make our windows more energy-efficient and environmentally friendly. Mathews Brothers insulated glass units use Duralite® spacers, part of a highly energy-efficient insulating glass spacer system developed by Truseal Technologies. Known as “Envirosealed Windows™” this assures our consumers that the insulating glass spacer system in their windows is the most energy-efficient choice on the market.