The Greenhouse Sigma.
features a 20mm x 40mm tubular galvanized steel frame with no internal supports, giving you a completely open growing space. With wider doors and windows for better access and ventilation, plus optional galvanized steel shelves, Sigma offers the same strength as the Gamma model—with easier self-assembly and a cleaner interior layout.
At Growguard Tunnels, we combine years of hands on expertise with a commitment to quality, giving every customer a greenhouse they can rely on for many years to come.
Our skilled team has been building tunnels and greenhouse structures for over a decade. We make sure every job is done right with strong foundations, precise fitting, and a finish that is made to last.
We offer a wide range of premium polycarbonate greenhouses, from compact models for smaller gardens to spacious professional options. Whatever your space or growing goals, we have a model to suit.
Every gardener has different preferences and routines. That is why we provide multiple shapes, designs, and layouts so you can choose the structure that matches your gardening style perfectly.
Our after sales care is outstanding. We stay in touch, offer support whenever you need it, and are always ready to help with questions or concerns. If required, our team can visit your site to assess and assist, ensuring your greenhouse continues to perform at its best.
Our dedication to quality and customer service has earned the trust of growers throughout the United Kingdom. Many customers return or recommend us because they know they can rely on us long after installation day.
Growguard Tunnels in the United Kingdom proudly comes from our sister company in Ireland which has been operating for ten years and has built an exceptional reputation for reliability, craftsmanship, and professional service.
From choosing your greenhouse to installation and ongoing support, our knowledgeable team is always available with practical guidance and genuine care to help you get the most from your greenhouse.
