SDB has been at the forefront of aluminium bi-fold door supply and fitting in Surrey for over a decade. We provide three premium frames of folding doors for viewing at our showroom, each at varying price points and all can be tailor made to fit your specifications. These doors will enhance the appearance of any property, regardless of age or style. We maintain a very high standard of quality control. All units are individually inspected prior to installation. All doors are installed by our specialist in-house fitting team.
We offer 4 premium bi-fold frames to choose from at various price points. All displayed for viewing in our Chobham showroom.
Schüco ASS70FD
- Expertly Engineered.
- German Engineered Quality Frames.
- 120mm Site line (frame to frame width)
- Market Leading door mechanism The best bi fold operational mechanism available on the market!
- Flush or Stepped threshold
- 200 RAL + 4 standard frame finish colours. Dual colour available.
- Locking Options: Choice of either traditional lever / lever handle on main door, or slim line handle.
- Hardware colour options: white, black, chromw and satin silver
- Multi-Layered Weather Seals for extra resistence against wind and rain.
DUTEMÄNN FD85 SUPER SLIM
- Super Slim
- German Engineered Quality Frames.
- 105mm Site line (frame to frame width)
- High end door mechanism almost silent operation.
- U-Value of 1.3 (W/mK), which can be improved if you choose triple glazing resulting in a value of 1.1 (W/mK).
- Flush or Stepped threshold
- 200 RAL + 4 standard frame finish colours. Dual colour available.
- Panel locking Quadbolt latches
- Special bottom roller hinge (maximum weight 500kg)
- Hardware colour options: White: Matt Silver and Matt Black
- Multi-Layered Weather Seals for extra resistence against wind and rain.
Dutemänn FD120
- Great Value.
- German Engineered Quality Frames.
- 120mm Site line (frame to frame width)
- High end door mechanism almost silent operation.
- Flush or Stepped threshold
- 200 RAL + 4 standard frame finish colours. Dual colour available.
- Locking Options: Choice of either traditional lever / lever handle on main door, or slim line handle.
- Hardware colour options: white, black, chromw and satin silver
- Multi-Layered Weather Seals for extra resistence against wind and rain.
Origin Bi Folding Door
- British Made Quality Frames.
- 158mm Site line (frame to frame width).
- High end door mechanism almost silent operation.
- Flush or Stepped threshold
- 200 RAL + 4 standard frame finish colours available. + 4 woodgrain colours. Dual colour available.
- Locking Options: 8 point locking system + security hinges & chamfered 20mm linear bolts. Ultra secure lock cylinder/barrel.
- Hardware colour options: white, black, chromw and satin silver.
- Multi-Layered Weather Seals for extra resistence against wind and rain.
Which are the best Bi-folding doors for your building project?
You have to assume they are all fit for purpose they should all open and close. Some will open easier than others. Some will feel more solid and have a positive action when closed. Some of the big companies understand the need for proper engineered products and actively have a design and development team to ensure their bi-folding doors look and feel the best. The below information is gathered directly from websites and company representatives:
| Maximum Panel Width | Maximum Panel Height | Maximum Panel Weight | Visible Aluminium Sight Line | U' Value | ||
|---|---|---|---|---|---|---|
| Origin OB-49 | 1200mm | 2376mm | 80kg | 110mm | 1.2W/M2K | (Triple Glazing) |
| Origin OB-72 | 1200mm | 2700mm | 90kg | 158mm | 1.6W/M2K | (Triple Glazing) |
| FD-85 | 1350mm | 3000mm | 150kg | 105mm | 1.5W/M2K | |
| FD-120 | 1200mm | 2500mm | 100kg | 120mm | 1.76W/M2K | |
| AirDoor CF68 | 1000mm | 2500mm | 90kg | 131mm | 1.80W/M2K | |
| Schco ASS70FD | 1200mm | 3000mm | 100kg | 120mm | 1.76W/M2K | |
| Smarts Visofold 1000 | 1000mm | 2500mm | 100kg | 132mm | 1.87W/M2K | |
| Cortizo | 1200mm | 3000mm | 120kg | 120mm | 1.6W/M2K |
Bi-Folding Door Configurations
Our bi-fold doors can be manufactured folding to the left, right or to both sides. A pass door can be incorporated in the system, which can be used like a normal external door, leaving the other panels locked in place. For practical reasons most people choose to open the doors to the outside, but they can be manufactured opening inside if required.
Performance
Our range of aluminium bi-folding doors will complement any home. Our bi-folding doors can be designed and installed for use as 'open out' or 'open in' operation, internally of externally beaded with sidelight options. All doors come with a polyamide thermal barrier which is much higher in performance compared to PVC-U or composite frames. Our frames are ultra slim which means more glass, bringing the outside in. A flush threshold can be created with no step.
"All of our Bi-folding Door's are guaranteed for 20 years against mechanical failure."
All our doors exceed current building regulation requirements. They are manufactured with thermal barriers between components, weather seals and high-performance glass sealed units which reflect heat back into the indoors. We also offer a selection of glazing options for enhanced sound and heat insulation.
Other glazing options include Pilkington self-cleaning Active glass, solar reflective for South facing doors and even triple glazing for enhanced sound and heat insulation. Dicuss these options with your friendly surveyor.
Features & Benefits
- SDB: Installing bi folds over 10 years
- Market leading brands
- Inward or outward opening
- Glazing options: Easy clean; Solar Control; Triple Glazing
- Anti-finger trap gasket
- Perfect weather resistence
- High energy perfomance-thermally efficient
- High security - master/intermediate handles
- Quiet and easy operation
- High transparency
- Ultra slim 120mm aluminium frames
- Low U values
- Stylish hardware options
Effortless Opening
Unique Glide gearing system lifts sashes on the operation of the door handle to deliver effortless opening and closing of panels of up to 400 kilos per panel.
Huge Flexibility
Exceptional structural integrity gives the system huge flexibility. Capable of spanning an aperture of 6.7m wide by 3.2m in height in just two panels, the system is ideal for spanning large spaces.
Thermal Efficiency
Thermally efficient featuring thermal-breaking zone and cross-linked polyamide insulation. Capable of accommodating a sealed unit of up to 42mm including triple-glazed option to achieve U-value as low as 1.3w/m2.K
Secure
Multi-point locking and high security cylinders offered as standard. Track options deliver flexible opening and closing of sashes.
Weatherproof
Industry leading threshold drainage system along with the system resting on weather seals when closed meaning exceptional weather tightness.
