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Open plan living at its best with our new aluminium bifold doors

Intuitively sliding along a track and stacking to the side via a unique concertina style fold, aluminium bifold doors seamlessly unite homes and gardens all year round. Glazed bifold doors are perfect for refreshing 'broken-plan' interior designs too. Fusing the airiness of an open-plan layout with snug pockets of privacy, aluminium bifold doors make elegant internal screens that let the light flow through the space with ease.

Incredibly efficient, environmentally friendly, and custom-made to complement both modern and heritage buildings alike, bifolds are the ideal door style for households who love to entertain without limitations. Made in the UK, with over 35 years’ worth of experience connecting interiors with the outside like no other, preserving your building's unique aesthetic is made easy with premium aluminium bifold doors from Ventrolla.

Bifold Door Features

What makes our aluminium bifold doors unique?

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Premium aluminium, glazing & hardware

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Bespoke shapes & sizes
(up to heights of over 3m)

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Slim frame options & advanced thermal-break technology

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Over 100 RAL colours & woodgrain effects

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Local expertise, national coverage

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aluminum bifold door

Convincing steel-replica frames, infused with the benefits of modern aluminium

Ingrained heritage with a contemporary twist

From classically styled oak effect 3-panelled bi-folding doors to spectacular contemporary corner bifolds designed to create a real focal point, our aluminium bifold doors are crafted for effortless interior flow and maximising natural light ingress and ventilation. Coupled with industry-leading extrusion machining and future proof technology, this is what sets our aluminium bifold door products apart from the rest. Combined with efficient slimline double glazing, you can count on Ventrolla products to deliver the perfect balance of improved energy efficiency, security, and style.

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aluminum bifold door

How good are aluminium bifold doors?

From Art Deco-inspired aluminium bifold doors with ultra-slim mid-rails to unobstructed modern bifold door designs, with our steel-alternative aluminium bifold door replacements, you can look forward to:

  • Up to 8 door panels & convenient traffic door options
  • Inward or outward opening & 4 threshold options
  • Advanced thermal-break technology
  • High strength-to-weight ratio; 3x stronger than timber
  • Modern multi-point locking systems
  • Highly recyclable, premium aluminium frames
  • Limitless colour options, including authentic woodgrain effects
  • Warp, fade & corrosion resistance
  • Ultimate design flexibility, enhancing a wide range of property styles
  • Double & secondary glazing options
  • 45 years of enjoyment with minimal maintenance

Our Process



The Ventrolla journey begins with a discussion with a member of our team and/or a detailed home or site design survey, to explore your ideas & devise a bespoke plan of action.



Once our team have finalised the plans, we will provide a comprehensive estimate for your works. Enquiry to estimate typically takes between 5 and 10 working days.



Ventrolla fuse traditional skills with modern technology. If you require new joinery, creating your unique product begins in our UK-based manufacturing facility, and takes between 6 and 10 weeks.



The utmost care is taken to deliver quality products and renovation works that exceed our customers’ expectations. Varying from area to area, Ventrolla lead times depend on how busy we are, and the work required. On average, our installation team will be on site between 6 to 18 weeks from the date your order is placed. We will advise guide installation dates when you place your order.



Our customers come back time and time again – when they move or if they’ve phased their works – all thanks to our exceptional customer service and after care. In the unlikely event that your Ventrolla products require expert attention, we’re always on hand.



Renowned for delivering outstanding quality, all our work comes with a minimum 5-year guarantee (subject to terms), for absolute peace of mind.

  • Door Furniture
  • Energy Efficiency
  • Maintenance
  • Specifications

Door Furniture

Refined aluminium bifold door ironmongery in a range of styles & finishes

Compromising on quality simply isn’t an option at Ventrolla, which is why we source our door furniture from the very best that the industry has to offer.

Matching your home’s unique aesthetics with ease, our collection of fittings includes quality locks, tracks, seals, pivots, D-handles, catches, and hinges. With a diverse range of finishes, from polished brass, antique brass, and antique copper to chrome-plated, satin chrome-plated, and white powder coated options, making a unique statement is easy with Ventrolla.

aluminum bifold door

Energy Efficiency

High performance aluminium bifold doors

Contemporary aluminium bi-folds are much more efficient than old steel and aluminium doors thanks to the inclusion of innovative thermal break technology. Contrary to popular belief, modern bifold doors are just as secure and efficient as any other door, retaining optimum amounts of heat and keeping burglars out for decades to come. Warp, fade, and rust-resistant, tough aluminium bifold doors make ideal replacements in buildings located in harsh British coastal areas too. Combined with efficient double glazing or secondary glazing, you can combat rising fuel bills and improve energy efficiency across the board with a high-performance Ventrolla installation.

Once we receive your final payment, our handy ‘Care Pack’ will be sent to you or your client which includes energy improvement certificates for absolute peace of mind.

handle of aluminium bifold door


How do you clean aluminium doors?

Once your aluminium doors are installed, they need very little maintenance to prolong their lifespan. Requiring a quick wipe over with a soft cloth and a mild soapy solution every few months and carefully removing any debris from the track, aluminium is one of the most low-maintenance door materials around.

Once we receive your final payment, our ‘Care Pack’ will be sent to you or your client which includes handy Maintenance Instructions to keep new aluminium doors looking their best for longer.

aluminum bifold door


New double glazed aluminium bifold door specifications

CF 77 CF 68
Folding door panels: 2 – 8 2 – 7
Max. height vent: 3000 mm 2500 mm
Max. width vent: 1200 mm 1000 mm
Energy level: High Super High


aluminum bifold door

What our customers are saying

Ventrolla were able to beat all the other quotations that I received and answered queries quickly and informatively, making changes as required promptly and without fuss. I was kept informed throughout of lead times and manufacturing times. The real stars of the show were Rob and James who worked tirlessly and brilliantly as a team to repair sash boxes where required and install our new sashes. Thank you!


Everybody I dealt with has been super friendly, informative, and helpful. I received emails with updates on what was happening, etc. It has been a great experience from start to finish.


I used Ventrolla to renovate my sash windows over to years ago. When two of them finally collapsed, including a bay window the size of three full sized Georgian windows they were my first contact. The office staff, surveyors and the three fitters that did an amazing job installing them in less than two days were all excellent. The quality of workmanship and the standard of installation were first class, and the new windows look amazing. I will definitely be using them again as more of my windows will need replacing over the next few years.


This is the second property Ventrolla have restored my windows for me, and the this job was every bit as good as the first. 14 sash windows in a Grade II listed building installed/refurbed without a hitch in week. The team of 4 installers were lovely chaps, super efficient and tidy. All round another fabulous job done – thank you the Ventrolla Team


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Frequently Asked Questions

Are aluminium bifold doors thermally efficient?

Modern aluminium doors from Ventrolla feature cutting-edge thermal break technology. Designed to notably reduce heat loss and condensation, unlike old steel and aluminium doors, our robust multi-chambered aluminium frames will not contract or expand in extreme temperatures either.


Incredibly thermally efficient and strong, depending on the glazing specified, our aluminium bifold doors can achieve A+ energy ratings with non-insulated, super-insulated & Passive House compliant frames available.

I live in a listed building / conservation area / AONB - can you work on my property?

Quite simply, yes, we can! We have completed lots of work over the years on listed properties and those within conservation areas and Areas Of Outstanding Natural Beauty (AONB). Working closely with local conservation and planning officers, English Heritage, Historic England, Historic Scotland, and Cadw, you can trust in Ventrolla to reinstate and sustain unique architectural features whilst simultaneously heightening historical value too.

Do you offer an installation guarantee?

Yes, our work is guaranteed for 5 years.

Is there a minimum order value?

No there isn’t for our full renovation, draught-proofing, or bespoke new joinery service. However, we can’t usually help with smaller works than this (e.g., broken sash cords, cracked glazing, etc.) unless they form part of a larger renovation project.

How long will the work take to complete?

Varying from area to area, Ventrolla lead times depend on how busy we are, and the specific renovation work required. On average, our lead times range from 6-14 weeks from the date the order is placed. Your Surveyor will be able to advise you further on current lead times, and our operations team will be able to confirm exact timescales once you place your order.


PLEASE NOTE: In these unprecedented times, coupled with the latest COVID measures, please be aware that our lead times could be longer than originally specified. Should there be any impact on your installation date, please rest assured we will keep you updated throughout the process.

Got questions that haven't been covered? Visit our FAQs or speak to our friendly team today:

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