Published Last updated 9 min read
Andersen vs. Marvin Windows: Materials, Warranty Terms and Coastal Limits
Andersen and Marvin both use a 20-year glass, 10-year non-glass warranty structure, with differences in size limits, coastal terms and sales channels.
The short version
Both are family-owned (Andersen founded in 1903, Marvin in 1912), and neither warranty includes labor. We don't rank them on quality. See our Andersen guide and Marvin guide for each in depth.
Materials
Marvin's lines include aluminum-clad wood (Ultimate), aluminum (Modern) and Ultrex fiberglass lines (Vivid, Elevate, Essential). Andersen's lines include Fibrex composite (100 Series), wood with a vinyl exterior (200 and 400 Series) and wood (A-Series). For how fiberglass compares with vinyl, see our vinyl vs. fiberglass guide.
Warranty details
The Marvin Limited Warranty we read (February 2024) is fully transferable, with glass at 20 years up to 60 square feet and 10 years above, non-glass and hardware at 10 years, and claims required within 60 days. The Andersen 400 Series warranty we read (2019 edition) is owner-to-owner transferable, with 20 years on standard glass and 10 on non-glass parts.
Near the coast: Marvin covers coastal hardware only if it is stainless steel or PVD finish, and aluminum cladding is covered for 10 years within one mile of salt water. Andersen's 400 Series document lists 10-year corrosion-resistant coastal hardware coverage and excludes salt and acid-rain damage.
How you buy
Marvin requires purchase from an authorized dealer. Andersen sells through certified contractors, retailers and Home Depot, plus its direct Renewal by Andersen arm. Compare both in our brand comparison and installer vetting questions.
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