Why Can Emerald Offer This?

This guarantee exists because of the standard of our work.

Our window and door supplier, Dekko, has extended an exclusive 20-year, full-product guarantee to Emerald – and to Emerald alone. In over two decades of supplying installers across the UK, they've never offered this to anyone else.

Their reason is straightforward: they trust the quality of our installations completely.

That trust has been built over years of consistent, high-quality workmanship. Dekko have confidence that when Emerald fits one of their products, it is installed to a high standard – and they're willing to back that with 20 years of cover to prove it.

For you, that means a guarantee that reflects not just the product, but the people fitting it.