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
2. Weather tested to EN1027 for watertightness
3. 10 Year Warranty
4. Fully U-Value compliant composite door range
5. 19% More thermally efficient than timber doors
6. 3mm Thermal movement tolerance
7. Fast Lead Times
๐Sick 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.
We are so confident in our door slabs performance 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
Steel Reinforced Outer frame
High Impact Resistant GRP Skin
GRP Core Board Reinforcement
Quality locks and keeps
AV4 Lock on Slam Shuts
Other Benefits19% More Thermally Efficient Than 48mm Solid Timber Core Door
Superb Sound Insulation
Virtually Maintenance Free
150+ Composite Door Designs
2000+ Colour Options
Future Proof Your Composite Door Installations
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
2. Weather tested to EN1027 for watertightness
3. 10 Year Warranty
4. Fully U-Value compliant composite door range
5. 19% More thermally efficient than timber doors
6. 3mm Thermal movement tolerance
7. Fast Lead Times
Help Your Customers Save Money On Their Heating Bill
19% More Thermally Efficient Than Timber Doors
Hallmark composite doors have been tested in comparison with a 48mm solid timber core composite door and a 44mm timber panelled door. The images below show the thermal efficiency of each door type. Dark blue areas indicate lower heat loss. Red and green indicates higher heat loss.
Hallmark Composite Doors are:
19% more thermally efficient than the 48mm solid timber core composite door.
17% more thermally efficient than the 44mm traditional timber panelled door.

