Leaf count
Fewer broad leaves or more narrow leaves are compared for proportion and use.
Essential Aluminium
Essential Bi-Fold Doors
A competitively positioned aluminium bi-fold with slim styling, smooth operation and extensive configuration choice.
Made to measureSurveyed by PM WindowsInstalled by our team
1–7Door leaves
6.4mMaximum set width*
2.579mMaximum height*
From 1.6U-value W/m²K*
Open the room completely
Keep the opening ambitious and the specification focused.
This route is designed for mainstream extensions and replacement projects where aluminium, reliable operation and value need to work together. PM Windows will still survey and install it to the same careful standard.
01
A generous clear opening
Panels fold to one or both sides to connect the room with the garden.
02
Flexible day-to-day access
A traffic door can provide convenient access without folding the complete set.
03
Made around the aperture
Leaf sizes, opening direction, threshold and glazing are selected as one layout.
Simple design explorer
See the main starting points.
Choose a starting arrangement below. PM Windows will confirm the exact configuration, proportions and practical details after survey.
This visual is a guide, not a technical drawing. Every final arrangement is subject to system limits, survey and detailed design.
Price this option →Three-leaf arrangement
A popular route for compact and medium openings.Illustrative layout
A popular route for compact and medium openings.Illustrative layout
Tailored to the project
The decisions we make with you.
The best result comes from resolving the technical and visual details together, then recording them clearly in the quotation.
Stack direction
Fold left, right or split the stack to suit the room and patio.
Traffic door
Create simple everyday access without moving the complete set.
Threshold
Weathered and lower options are selected for exposure and access needs.
Glazing
The glass specification balances comfort, safety, security and light.
Hardware
Handles, hinges and running gear can coordinate or provide a considered contrast.
Colours & finishes
Quietly coordinated or deliberately contrasting.
Availability varies by product. Explore useful RAL starting points, compare finish types and save a shortlist before PM Windows confirms the exact options for your chosen system.
Check finishes →Anthracite Grey
Jet Black
Traffic White
Warm Grey
Bronze Tone
Special Finish
Product specification
The important facts, made easy to compare.
These headline capabilities are a starting point. The exact product, sizes, performance, glass, security, finish and guarantee will be stated in your written quotation.
Selected, specified, surveyed and installed by PM Windows using a proven specialist system.
- Configurations
- More than 30 routes
- Door leaves
- One to seven
- Maximum set width
- 6,400mm*
- Maximum height
- 2,579mm*
- Maximum panel width
- 1,250mm*
- Opening
- Inward or outward
- Security
- PAS 24 with specified laminated glass
- Thermal performance
- From 1.6 W/m²K double glazed*
*Maximum sizes, performance and guarantee terms depend on the selected system, dimensions, configuration, glass, location and installation. Final project values are confirmed in writing.
Inspiration gallery
Picture the product in context.
Supplier imagery explains the product direction. Approved PM Windows projects remain clearly separated in our installations gallery.
Frequently asked questions
Useful answers before you choose.
How many panels should a bi-fold have?
That depends on the aperture, preferred leaf proportions and where you want the panels to stack. PM Windows will draw the practical options.
Can I have an everyday access door?
Many configurations allow a traffic door that operates independently from the folding set.
Can bi-folds open inwards?
Several systems offer inward or outward opening. The best choice depends on internal space, external space and drainage.
Ready to take the next step?
Bring us your plans, dimensions or simply an idea.
We will shape the arrangement, explain the options and provide a clear written quotation for supply and installation.