BOWING SEASON IS HERE - (NOT WITH HALLMARK)
We understand that you want to fit a reliable door and have the confidence that it will stand the test of time; 1. Anti-Bowing technology preventing bowing, warping, twisting & bubbling
that we offer a 3mm thermal movement tolerance and have done for many years. Bowed, twisted and warped doors at Hallmark are a rarity. Order your doors with Hallmark and cut out the call backs and service calls. How Is This Performance Achieved? Pioneering Aluminium Edge Carrier On Both Sides Of Slab
2. Weather tested to EN1027 for watertightness
3. 10 Year Warranty
4. Fully U-Value compliant composite door range
• Steel Reinforced Outer frame
5. 19% More thermally efficient than timber doors
• High Impact Resistant GRP Skin
6. 3mm Thermal movement tolerance
• GRP Core Board Reinforcement
7. Fast Lead Times Sick of bowing, warping & twisting doors? Are you sick of bowing, warping & twisting door slabs? With a Hallmark composite door, you need not worry. We understand that you want to fit a reliable door and have the confidence that it will stand the test of time and the changing temperatures from radiators in the winter and thermal heat in the summer.
• Quality locks and keeps
• AV4 Lock on Slam Shuts Other Benefits 19% More Thermally Efficient Than 48mm Solid Timber Core Door
• Superb Sound Insulation
• Virtually Maintenance Free
• 150+ Composite Door Designs
• 2000+ Colour Options
We are so confident in our door slabs performance
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