Swallow GB Ltd manufacture quality timber Greenhouses and install nationally. Swallow GB Ltd were proud to win the 2010 Glee Award at the NEC Birmingham. This was based on design and innovation, Quality of manufacture and value for money. All the Swallow GB Ltd Greenhouses are tanalised, the high door has a mortise lock and lever handle. All the glass is toughened for safety and sealed with silicone. The roof vents are fitted with automatic openers. The boards' are fixed with stainless steel nails. Swallow GB Ltd is the only timber Greenhouse company which fits a PVC section to the bottom, called the damp barrier.