Secure and Slim Bi-fold Doors

Bifold door Bifold door

Secure and Slim Bi-fold Doors

We can also offer you industry-leading bi-fold doors, designed to complement our range of rooflights. In partnership with Reynaers, we combine their best quality door-frames with our with our exclusive Reflex® glass, to bring you the highest quality bi-fold door system on the market. The slim-look design features premium handles, heavy duty hinges, flexible door configurations and thermal insulation that keeps you warmer in winter and cooler in summer.

– Unique adjustable jamb for failsafe installation
– Industry-leading thermal insulation
– Double and triple-glazed options
– Smooth, reliable operation
– Dual-colour options – inside and out
– Rigorously tested to the highest levels

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Folding doors connect your home and garden

Our full-length bi-fold doors can be built with either double or triple-glaze options. The ultra-slim frames maximise natural light when the doors are closed, with an overall sightline of only 131mm where two-doors meet.

The doors are available in a choice of grey, black, cream or white standard finishes to suit your property. These colours are designed to match or complement our rooflight range, creating a consistent and contemporary design style.

Doors open safely and easily, with child-friendly gaskets to prevent fingers being trapped between the panels. A choice of low threshold sills provide sufficient weatherproofing while maintaining slim sightlines. This also provides an opportunity to provide a flush transition from your indoor floor to your outdoor patio or decking area, creating the feeling of being at one with your garden and the great outdoors.

Bifold doors
Bifold door

Explore our units

Bi-Folding doors

Marine-grade material

The coating on our aluminium frame offers exceptional durability and weatherproofing – tough enough to withstand even the harshest coastal conditions.

Concealed outer fixings

Child-friendly gaskets stop fingers being trapped. Heavy duty handles and hinges for durability. A choice of high quality handles that finish your door combination off exquisitely.

Reflex Glass

Exclusive to Roof Maker. Low-maintenance, easy clean glass as standard, with energy efficient U-values as low as 0.7 w/m2k . Up to 100% of harmful rays blocked, to prevent bleaching of furnishings and fabrics. Compliant with standards BS EN1279 parts 2 and 3.

Robust, aluminium frame

50mm composite thermal break offers unrivalled thermal and noise insulation. Adjustable jambs provide a unique installation aid, allowing the frame to be adjusted after installation - to ensure your doors glide, effortlessly.

Bespoke Options

Design a set of bi-fold doors that are unique to you. Choose from the number of panels, the colour of the frame inside and out, and how you would like them to open either inwards or outwards. Just imagine what you want and how you want it to look – give us a call and we can discuss how to build it to your exact design.

Secure and insulating. Bespoke layout options.

You can specify the number of panels you would like in your door system, and whether you would like them to open in or out. A “traffic” door is a great option for frequent access, as it opens independently, leaving the other doors in place.

Our bi-fold doors are engineered to be robust and are security tested by the leading UK organisation on standards of forced entry.

The doors are available as triple glazed option which offers unrivalled extra thermal performance, to help keep you warmer in the Winter.

bifold doors interior bifold doors interior

We are the leading manufacturer

Delivery icon

Next day delivery on stock sizes

Glazing icon

Triple glazing available U-value of 0.7

Clean glass icon

Easy clean glass as standard in a choice of colours

30 year expectancy icon

Bespoke sizes, made to order at no extra cost

Energy icon

Super energy saving reflex+ glass made in house

20 year warranty icon

20 year unit seal warranty on all glass rooflight products

Aluminium joint icon

Very slim sightlines Larger glass areas

Aluminium covers icon

Security Certified Tested to PAS 24

Technical Specifications

Aluminium bifold doors

ThermFold is the highest quality aluminium door system on the market with the longest warranty direct from the manufacturer, not a middle man! We have been manufacturing premium aluminium and glass products since 2001.

Buying direct from a manufacturer is the perfect situation, you get the highest specification products with the longest warranties, the best most accurate product advice, technical service, prices and deals, as well as post sale customer care.

Drawing is for illustrative purposes only. Please refer to the Technical resources to download cross-section files.

View more specifications and resources View more

Glass

Toughened safety glass. U-values as low as 0.7 w/m2k

Frame

Aluminium with insulating polyamide thermal breaks

Warranty

10 year seal warranty

Glazing Standards

BS EN1279 parts 2 & 3

Security Level

Certified to PAS24

Sound Insulation

ISO 717-1/A1

Tell us about your Secure and Slim Bi-fold Doors

  • Size
  • Doors
  • Door Options
  • Glass Options
  • Delivery
  • Installation
  • Summary
Your price: £960
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Please choose the size of your doors



1000mm x
1000mm
Do you need a bespoke size? No  Yes Bespoke toggle

How many doors would you like?

Do you require trickle vents?


A trickle vent is a very small opening in a window to allow small amounts of ventilation in spaces.

What type of Threshold would you like?


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threshold Low Threshold (£20.00)

Part M Compliant
No Ramp/No Trims

Low Threshold (36.00)

Part M Compliant
Ramp/Trim

Low Threshold (36.00)

Part M Compliant
Ramp/Ramp

Internal Frame External Frame


Glass colour

Satin Grey RAL7016

Glass colour

Satin White RAL9003

Glass colour

Cream

Glass colour

Satin Black RAL9005

Glass colour

Satin Grey RAL7016

Glass colour

Satin White RAL9003

Glass colour

Cream

Glass colour

Satin Black RAL9005

What type of door handles would you like?


Door Handle

Satin Silver Handles

Door Handle

Matt Black Handles

Door Handle

Brushed Graphite Handles

How would you like your doors to open?


Inward refers to doors opening towards the house. Outward refers to doors opening out to the garden.

Choose your glass type


Contact us if you have specific glazing requirements.
All glass is supplied with our Easy Clean coating as standard.

Double Glazed
Energy

Super Energy Saving
(1.1 U-Value)

Double Glazed
Solar Control

Cooler in summer
(1.1 U-Value)

Double Glazed
Noise Control

Reduce outside noise
(1.1 U-Value)

Double Glazed
Security

Laminated Security Glass
(1.1 U-Value)


Triple Glazed
Energy

Super Energy Saving
(0.7 U-Value)

Triple Glazed
Solar Control

Cooler in summer
(0.7 U-Value)

Triple Glazed
Noise Control

Reduce outside noise
(0.7 U-Value)

Triple Glazed
Security

Laminated Security Glass
(0.7 U-Value)

Choose your glass colour


Prices shown are per door panel

Glass colour

Clear

Glass colour

Blue Tint Solar Control (£120)

Removes the harsh glare from sunlight and protects furniture from thr fading effects of sunlight

Glass colour

Bronze Tint Solar Control (£120)

As per our light blue tint, this will reduce glare and protect he colours of your furnishings

Glass colour

Satinova Privacy Glass (£150)

Creates a natural filtered light. It is not possible to see through this glass from either side

Where would you like your units delivered?


Our normal delivery time is 20-25 working days. This can be longer during peak demands and onsite builds.
Please note: Mainland UK deliveries exclude Devon / Cornwall / Scotland

How would you like them installed?

Flat Packed (FREE)

Ready for assembly

Professionally Installed (£775)

Installed by the Manufacturer

How many units do you need?

1

Before we take to you to see the full quote,

please enter your email so we can send you a copy as well.




  • Homeowner
  • Builder
  • Architect

Back to configuration

More about your Secure and Slim Bi-fold Doors

  • Aluminium frames with stainless steel hardware
  • Colour matched to our rooflights
  • Adjustable jamb as standard, to ensure effortless movement
  • Security tested to PAS 24
  • Prices shown are for basic door configuration, call for details

Don’t lose your quote

Please enter your email, and we’ll send you a copy of this quote



Need Help?

Call our friendly sales team now to discuss this price and product in more detail

Call us: 0116 269 6297

Secure and Slim Bi-fold Doors

£1330 Add to basket

SIZE£4385.00

100mm x 1000mm

COLOUR £120.00

Light blue

BLINDS £620.00

White Blinds

DELIVERY FREE

Collection from Factory

Subtotal 5125.00

VAT £1025.00

TOTAL £6150.00

Back to configuration

Secure and Slim Bi-fold Doors

£6150.00

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  • Aluminium frames with stainless steel hardware
  • Colour matched to our rooflights
  • Adjustable jamb as standard, to ensure effortless movement
  • Security tested to PAS 24
  • Prices shown are for basic door configuration, call for details

SIZE£4385.00

100mm x 1000mm

COLOUR £120.00

Light blue

BLINDS £620.00

White Blinds

DELIVERY FREE

Collection from Factory

Subtotal £5125.00

VAT £1025.00

TOTAL £6150.00

Need Help?

Call our friendly sales team now to discuss this price and product in more detail

Call us: 0116 269 6297

Don’t lose your quote

Please enter your email, and we’ll send you a copy of this quote

Tell us about your Secure and Slim Bi-fold Doors

  • Size
  • Roof vent
  • Orientation
  • Glazing
  • Glass Properties
  • Tint
  • Glazing
  • Finials & Cresting
  • Guttering
  • Frame colour
  • Blinds
  • Kerb
  • Solar power
  • Anti-slip
  • Delivery
  • Assembly costings
  • Quantity
  • Summary
Your price: £N/A
Bifold door

Please choose your size

All of our sizes are internal, from timber to timber

Please note: larger modular sizes are available, please phone for details.

Bifold door
1000mm x
1000mm
Do you need a bespoke size? No  Yes Bespoke toggle

Would you like to add roof vent

Bifold door

Choose your orientation and preferred style

Bifold door

Please choose your Glazing

Choosing triple glazing further enhances the insulation properties of our rooflights, dropping our centre pane U-values.

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Triple Glazing

Bespoke sizes available, with U-values from 0.5 w/m2k

Double Glazing

Standard sizes only, with U-values from 1.0 w/m2k

Double Glazing

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Triple Glazing

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Choose your glass properties

Choose from four distinct glass options, to suit your project. View the range here, or call us to discuss your requirements.
All of our glass units have an easy clean coating as standard.

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Specification key

U-Value U-Value The effectiveness of a product’s thermal insulation is indicated by its U-value. The lower the U-value, the better the insulation.

G-Value G-Value A product’s ability to minimise solar gain is measured by its G-value. The lower the G-value (usually expressed as percentage), the less heat gets through.

Decibel ratings Decibel ratings A decibel value for the noise reduction rating of the glass option. The larger the value, the more noise will be reduced by.

Energy

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Solar Control

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Noise Control

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Security

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Ultimate

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Choose your tinting preferences.

Bifold door

Clear Tint £FREE

Clear glass is our standard option

Subtle Blue Tint Glass £100

Removes the harsh glare from sunlight and protects furniture fro m the fading effects of sunlight

Bronze Tint Glass £120

As per our light blue tint, this will reduce glare and protect the colours of your furnishings

Satinova Privacy Glass £190

Creates a natural filtered light. It is not possible to see through this glass from either side

Triple Glazed Clear (0.6 U-value)
(Free Promotion Offer) £380

Our triple glazed option gives the very best insulating properties, with a U-value of 0.6w/m2k

Triple Glazed Blue (0.6 U-value)
(£100 Promotion Offer) £480

Combine the benefits of subtle blue tint with super insulating triple glazed glass. 0.6w/m2k

Please choose your Glazing

Bifold door

Clear Relex+ FREE

Subtle Blue Tint Refelx+ FREE

Easy Clean Bronze Low E FREE

Obscure/Opaque Privacy Low E £146

Triple Glazed Reflex+ Blue Tint £346

Triple Glazed Reflex+ Clear £346

Please choose your Finials & Cresting

Bifold door

No Cresting

Traditional Cresting

Contemporay Cresting

Please choose your Guttering

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Choose your Aluminium roof colour

Bifold door

Would you like black out blinds?

Our blinds come with a remote control and integrated mains adaptor as standard.
The adaptor supplied is fitted with a standard UK 3 pin plug, for a very simple installation.

Bifold door

Would you like a bespoke builder's kerb?

We recommend our rooflights are installed with a minimum pitch of 5 degrees.
Our builder’s kerb are supplied with this pitch built-in, for a really simple installation.

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Solar powered module

A great option to consider if you don’t want to plan in electrical requirements and want to have a more eco-friendly rooflight (rain sensor unit is not compatible with the solar module).

Where would you like your units delivered?

Our normal delivery time is 7-10 working days. This can be longer during peak demands and onsite builds.

Please note: Mainland UK deliveries exclude Devon / Cornwall / Scotland

Bifold door

Assembly costings

Bifold door

How many units do you need?

Bifold door
1

Before we take you to see the full quote,

please enter your email so we can send you a copy as well.

Your details will not be shared with any third party.




  • Homeowner
  • Builder
  • Architect

Back to configuration

Bifold door

More about your Secure and Slim Bi-fold Doors

  • Aluminium frames with stainless steel hardware
  • Colour matched to our rooflights
  • Adjustable jamb as standard, to ensure effortless movement
  • Security tested to PAS 24
  • Prices shown are for basic door configuration, call for details

0% Finance Options Available

We can offer you a simple way to spread the cost of home renovations and improvements, in association with Omni Capital.

Please give one of our helpful sales advisors a call to discuss our available finance products


Need Help?

Call our friendly sales team now to discuss this price and product in more detail

Call us: 0116 269 6297

Secure and Slim Bi-fold Doors

£1330 Add to basket

SIZE£4385.00

100mm x 1000mm

COLOUR £120.00

Light blue

BLINDS £620.00

White Blinds

DELIVERY FREE

Collection from Factory

Subtotal 5125.00

VAT £1025.00

TOTAL £6150.00

Back to configuration

Secure and Slim Bi-fold Doors

£6150.00

Bifold door

Show More on Secure and Slim Bi-fold Doors +

Show less on Secure and Slim Bi-fold Doors -

  • Aluminium frames with stainless steel hardware
  • Colour matched to our rooflights
  • Adjustable jamb as standard, to ensure effortless movement
  • Security tested to PAS 24
  • Prices shown are for basic door configuration, call for details

SIZE£4385.00

100mm x 1000mm

COLOUR £120.00

Light blue

BLINDS £620.00

White Blinds

DELIVERY FREE

Collection from Factory

Subtotal £5125.00

VAT £1025.00

TOTAL £6150.00

Need Help?

Call our friendly sales team now to discuss this price and product in more detail

Call us: 0116 269 6297

0% Finance Options Available

We can offer you a simple way to spread the cost of home renovations and improvements, in association with Omni Capital.

Please give one of our helpful sales advisors a call to discuss our available finance products
previous next

Your questions, answered

What is a U-value?

The U-value of a product measures how effective its insulation properties are. The lower the U-value, the better the insulation. As a guide, a standard double-glazed window typically has a U-value of 2.8 W/m².

What is a thermal break?

A thermal break is a material with low thermal conductivity placed between conductive materials to reduce or prevent the flow of thermal energy.In our products, these thermal breaks include resin, silicone and styrofoam, which separate the conductive aluminium components to provide superb thermal insulation.

How can I get a price?

Simply choose your bi-folding door specifications in the form above for an instant price.

What are the size ranges of your doors?

Our standard range comprises widths from 2000mm up to 7000mm and heights from 2000mm up to 2500mm. For sizes outside this range, please contact us.

What door configurations can I choose from?

Our bi-fold doors are designed for optimal flexibility. You can choose to have all the panels opening or split them anywhere along the length.

Can I see your products in person?

Yes , our Leicester showroom welcomes both trade and residential customers. Here you can see our range of products and our manufacturing facilities.

Our experienced sales team will be on hand to answer any questions and demonstrate the product features, such as the manual or electric opening roof vents, which provide natural ventilation

How quickly can I get my order delivered?

Bespoke products are usually delivered to your site within 10-15 working days.

This timescale can be improved upon by a few days if you choose to collect your products from our Leicester factory.

Can I collect from you?

Yes, if you would prefer to collect direct from our Leicester factory, please let us know when you place your order.

What are your payment terms?

Payment terms for normal orders are strictly pro-forma, using Visa, Mastercard, bank transfer, WorldPay or Paypal.

Paying via Visa or Mastercard not only insures the product and your risk, but also gives you up to 60 days free credit, depending on which card you have.

For larger orders, or orders that do not require immediate delivery, we offer a 50% deposit option with the balance being due just prior to delivery or collection