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Endorsements and Certifications

The Royal Horticultural Society (RHS) is the UK’s leading gardening charity whose vision is a world where gardening is embraced as a way of life – a source of joy and fulfilment, to build healthier lives, stronger communities, and thriving environments. Their mission is to be there for everyone on their lifelong adventure with gardening and their aim is to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.

The RHS only aligns with carefully selected partners and endorses only the very best licensed products. This endorsement reflects Gabriel Ash’s commitment to craftsmanship, attention to detail and the use of premium materials in our Greenhouse designs and we are extremely proud that Gabriel Ash’s greenhouses and coldframes have been endorsed by the RHS for well over 10 years.


Choosing a luxury handcrafted Greenhouse that adheres to EN 1090 standards offers peace of mind. Compliance with EN 1090 signifies that the manufacturer adheres to strict guidelines for the fabrication and assembly of the structural elements, including steel or aluminium components. Meeting the EN 1090 standard assures customers that the Greenhouse has been manufactured using approved procedures and methodologies, ensuring its structural integrity, safety and longevity.


All Greenhouses and Coldframes manufactured by Gabriel Ash are PEFC Certified. PEFC certification works throughout the entire forestry supply chain to promote good practice and ensure timber and non-timber forest products are produced with respect to the highest ecological, social and ethical standards.