Gabriel ash are British manufacturers of simply stunning, superior Western Red Cedar greenhouses and cold frames using a fusion of age-old techniques and the values of traditional craftsmanship in combination with technology to make a product that is head and shoulders above the rest. We are proud to be the only greenhouse manufacturer endorsed by the Royal Horticultural Society (RHS). Throughout their 200 year history, the RHS have earned a world famous reputation for horticultural excellence and consider Gabriel Ash worthy of their approval. All our greenhouses are of superior design produced to the highest standards and of a quality worthy of the Society's standard of excellence. We also ensure that all our timber is produced with respect to the highest ecological, social and ethical standards, and therefore are certified by the PEFC promoting sustainable forest management.