Sign inJoin the beta

Marvin warranty for windows

35/100 Warranty ScoreRanked 11 of 11 brands
The short version

Marvin doesn't cover everything, but keeps insulating glass and hardware and non-glass parts covered to 20 years. That full coverage is the same as most of the 11 brands we compared, which typically cover nothing in full. You don't need to register to get this coverage.

From Marvin's published warranty, checked October 2026.

What's covered

Full coverage: everything, parts and laborPartial coverage: some parts only, you usually pay labor
Purchase5 yrs10 yrs+Full: NonePartial: to 20 years
  • Partial coverageInsulating glass20 years
  • Looks only (doesn't count as partial coverage)Exterior clad finish20 years
  • Partial coverageHardware and non-glass parts10 years
  • Looks only (doesn't count as partial coverage)Interior wood finish5 years
The fine print, decoded

What it leaves out

  • Leaks
  • Normal wear and tear
  • Water damage
Good to know before you buy
  • Labor to remove, install or refinish is not covered; Marvin repairs, replaces or refunds the part.
  • Have the serial number ready and start with the dealer who sold it.
  • Coverage transfers to later owners of the home.
  • Coastal homes get shorter cladding and hardware finish coverage.

How other brands compare for windows

Compare all 11 brands
Where you buy it matters

How long stores give you to return it

Longest return window first, for windows.

  1. Lowe'sMost items90 days
  2. The Home DepotMost items90 days
  3. Home OutletSoutheast and Midwest storesMost items90 days
  4. SutherlandsSouth Central storesMost items30 days

From each store's published return policy, using its rule for windows where it has one. Member and holiday extensions aren't counted. Check yours before you buy.

Work at Marvin and see something out of date? Send us the current terms and we'll check and update this page.Suggest a correction

I-BUY.AI isn't paid by any brand, and ratings can't be bought. How we rate warranties