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Our Helena garden office range has a specification far better than any competitor. This office has a secure 9-point locking system on the sliding Patio Doors, and a Tall Walkthrough Height. This range also features large, 28mm thick double glazed uPVC windows with unique Dunster House Domestic Hinges, along with Multi-Point Locking. Unlike competitors, we use PIR (Polyisocyanurate) insulation in the walls, roof and floor, not rockwool or foil backed bubble wrap. We use PIR (Polyisocyanurate) as we feel it is one of the best thermal insulators you can get. FEATURES: Domestic Standard uPVC Windows and Doors 28mm Double Glazing Energy Saving High Density Insulation Tall Sliding Patio Doors with 9-Point Lock Waterproof Insulated IzoPanel Roof Moisture Resistant Walls and Floor Fire Resistant Inner Wall Pressure Treated Timber for Longevity and Low Maintenance (10 Year Guarantee Against Rot and Insect Infestation) Easy to Build Panel System Dunster House Ltd. – Over 25 Years Of Supplying
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