Guarantees & Aftercare

Wood components

30 years, except oak

Against defects in workmanship and materials that could affect performance, subject to the aftercare procedures and written conditions. Oak has the separate cover below.

Oak timber

2 years

Oak requires maintenance every six months. The general 30-year wood-component period does not apply to oak.

Paint finishes

Up to 10 years

For the standard three-coat opaque finish. The applicable period depends on exposure, shelter and maintenance. See the Climate Guideline Chart and coating exclusions in the guarantee document.

Stain finishes

Up to 5 years

Subject to the coating specification, exposure, shelter and maintenance conditions. Some finishes and exposed locations have shorter periods of cover.

Hardware

10 years

Against functional failure, not surface finishes. Replacement ironmongery is supplied for the customer to fit.

Sash spring balances

10 years

Against functional failure. Years 1–2 include supply and fitting of a replacement balance. Years 3–10 include replacement supply only, not installation costs.

Double-glazed units

5 years

Against seal failure causing moisture inside the sealed airspace. Replacement supply and fitting are included during this period. Other glass defects or phenomena are not covered by this warranty.

Weather seals

10 years

Against failure, subject to the written guarantee conditions and maintenance requirements. Keep seals clean and free of dirt and debris.

“Up to” is important: a coating guarantee is not a promise that every finish will last that long without maintenance. The exposure chart and your product's care requirements determine the applicable cover.