Green Building Store’s PERFORMANCE, ULTRA and SLIDING SASH timber window and door ranges offer the following Warranties*:

  • Green Building Store ULTRA triple glazed timber window outward opening casement with Passivhaus certified optionFrames: 10 years
  • Glazing: 10 years
  • Hardware: up to 10 years
  • Finishes: Paint (10 years) & Stains (6 years)

*Subject to terms and conditions

Warranties information

Maintenance information

NB Special warranties exist for properties in coastal areas. Please contact us for more information.

Affiliations & Accreditations