Thermal performance
A polyamide thermal break runs through the profile, improving the overall U-value so the room stays comfortable all year and costs less to heat.
Aluminium bi-fold doors · Smart Visofold 1000
Open the wall to the garden.
Slim aluminium bi-folds that fold right back, fitted by our own Aylesbury team and covered by a 10-year guarantee.
Smart Visofold 100010-year guaranteeFree survey
Light, space and views
Slim frames, more glass.
An alternative to sliding doors, or a way to open the side of a conservatory. Folded back, the opening is clear from one side to the other.
See bi-folds we have fittedDesign options
- Standard or non-standard colours
- Metallic and wood effect finishes
- Dual colour, one shade inside and another out
The Smart Visofold 1000 profile
Built to stay warm and secure.
Every set of doors we fit is made on the Smart Visofold 1000 aluminium system, which complies with all requirements of the Building Regulations.
Talk through the specWeather resistance
High-quality EPDM gaskets and weather brushes seal every panel against wind and rain, keeping the elements outside where they belong.
Security
Multi-point locks on the main opening sashes and shoot-bolt locking on the floating mullions secure every panel when the doors are closed.
How it works
Surveyed, fitted and guaranteed.
We visit to measure the opening, agree the configuration and confirm the price. Only then are the doors ordered, and our own local team fits them.
- Free survey with the final price confirmed before we order
- Fitted by our own team, based in Aylesbury since 2003
- CERTASS registered installation
- 10-year guarantee on every installation
Threshold options
Low or rebated threshold.
The same door system, two ways to meet the floor. The right one depends on how exposed the opening is and how level you want the step.
Low threshold
A level step from room to garden.
- Wheelchair and pushchair access
- Furniture in and out
- Clean, modern sill line
Rebated threshold
A small upstand that keeps driven rain out.
- Exposed or open sites
- Tighter weather seal
- Same doors, same finish
Before you decide
Bi-fold questions.
The things people ask us most about bi-fold doors. Anything else, our office is happy to talk it through.
Ask us a questionWhat are the benefits of bi-fold doors?
Bi-fold doors maximise natural light with slim sightlines and large glass panels, create flexible living areas that can be opened completely or partially, and increase property value with a desirable feature.
What threshold options are available?
We offer low thresholds for wheelchair accessibility and seamless transitions, and rebated thresholds for enhanced weather protection in exposed locations.
What profiles do you use for bi-fold doors?
We use Smart Visofold 1000 profiles featuring polyamide thermal breaks for enhanced thermal performance, EPDM gaskets and weather brushes for weather resistance, and multi-point lock mechanisms for security.
Instant online prices
Windows to price too?
While you plan your bi-fold doors, price replacement sealed units and complete new windows online. Fitting and VAT included, no sales visit, and a free survey before any work begins.
Rather talk it through? 01296 630650
Glass only · keep your frames
Replace the misted glass.
New sealed units made to measure and fitted into the frames you already have.
Misted, cracked or blown. Frames fine.
Price my glass About two minutes
New windows · frames and glass
A whole new window.
A-rated Liniar frames in ten styles, with your choice of openers and glazing.
Draughty, dated or rotten frames.
Price my new windows Ten styles, priced instantly