Products
The manufacturers we carry
Four brands, chosen for different homes and budgets. We do not rank one as universally best — the right line depends on the architecture, the openings and what the project is for.
Andersen
Andersen Certified Contractor — verify current tier and year with Window Inserts.
Andersen is one of the oldest and most widely specified window and door manufacturers in the country, with lines that span vinyl and composite replacement windows through architectural wood units for high-end and historically sensitive work. Its product families differ mainly in frame material, size range, color and finish options, and price.
Read the overview →Marvin
Marvin is a family-owned manufacturer known for made-to-order wood and fiberglass windows and doors, with strong custom sizing and a following among architects and remodelers doing higher-end and older-home work. Its collections differ by material, price and how much they can be customized.
Read the overview →Harvey
Harvey Building Products is a Northeast manufacturer and distributor whose vinyl and composite replacement windows are widely used across the region. Harvey's lines are built and stocked for this climate, which can mean shorter lead times than a fully custom order.
Read the overview →Therma-Tru
Therma-Tru is a door-only manufacturer that helped establish fiberglass as an entry-door material. Its slabs take a paint or wood-grain stain finish, resist denting and do not rust or rot, and its door systems bundle the slab, frame, sill and weatherstripping as an engineered unit.
Read the overview →Product families listed on the brand pages are drawn from public manufacturer sources and are marked “confirm at consultation” until the owner verifies the current offering. No specs, prices or warranty terms are reproduced here — see the manufacturer’s own site for those, and talk to Window Inserts about your project.
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