About Ventrolla

As heritage specialists, Ventrolla is obsessed with restoring heritage timber windows and doors, and has been for over 40 years.

Our Team

We share a deep passion for preserving heritage, combining exceptional craftsmanship, attention to detail, and decades of experience.

Projects

Working with some of the most discerning heritage property homeowners and retrofit architects, contractors, and surveyors on their restoration projects.

Timber Windows

With nationwide coverage, you always benefit from local British craftsmanship.

Timber Doors

Manufactured in our bespoke joinery houses.

Enquire

Give your heritage building the craftsmanship it deserves.

Consultancy & project management

Ensuring seamless and efficient execution for commercial projects.

Projects

Working with some of the most discerning heritage property homeowners and retrofit architects, contractors, and surveyors on their restoration projects.

Bespoke aluminium bifold doors

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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.

Accreditations and Partners

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A partnership of preservation from beginning to end.

01

Complimentary consultation

We service the condition of your windows and discuss tailored restoration or replacement solutions, addressing all regulatory requirements with precision.

02

Window-by-window estimate

Each window receives a bespoke quote based on your preferences for systems, glazing, hardware, and other finer details.

03

Handcrafted in our joinery house

Our master joiners combine traditional craftsmanship with cutting-edge innovations to create the aluminium doors your property deserves.

04

Meticulous installation

Our highly skilled installation team ensure a flawless fit and finish, always with minimal disruption to your property.

05

Premium aftercare

Ventrolla products provide you with years of high performance and minimal maintenance. We offer expert advice and ongoing support to keep your windows in perfect condition.

06

5-year guarantee

Our commitment to quality is backed by a 5-year guarantee, providing you with enduring peace of mind.

Benefits of aluminium

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

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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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:

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

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.

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.

Maintenance

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.

FREQUENTLY ASKED QUESTIONS

01

Do you use sustainable materials?

Whenever possible, we use sustainable and ethically sourced materials.

02

Are your methods eco-friendly?

Yes! By repairing and upgrading existing windows instead of replacing them, we reduce waste and preserve resources.

03

How soon can you start work on my property?

Start times depend on current demand and location. After the initial survey, we’ll provide an estimated start date.

04

Is there a charge for the initial survey?

No, for residential customers, our initial survey is free of charge and includes a no-obligation quote.

05

Do you work on modern properties or only on period homes?

While our focus is on period properties, we also provide services for modern homes with timber windows. We are unable to renovate modern softwood windows but we can replace them.

06

What does Ventrolla specialise in?

We specialise in the repair, renovation, and draught-proofing of sash windows and casement windows, along with wooden doors and period property joinery.

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What is the lead time for getting the work done?

It differs from office to office dependent on how busy we are and what window work you have chosen, varying from 6 to 14 weeks from order date. Your Surveyor will be able to advise you better on current lead times and our operations team will be able to confirm exact timescales once you place your order.

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What is the process if I want to arrange a survey?

You can get in touch on Freephone 0800 0277 454, email us on info@ventrolla.co.uk, or complete our short enquiry form on our website at www.ventrolla.co.uk. Once we’ve received your enquiry we will be in touch within 2-3 working days to arrange your survey.

09

Do you need scaffolding?

Where possible we do all work in situ and take the sashes out from the inside of the property. Because of this, we ask that the rooms we will be working in are cleared, and we will dust sheet all furnishings. If scaffolding is necessary, i.e. there is limited access or for larger commercial projects, then we would always discuss this with you in advance of the order being placed.

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How long will the survey take?

It depends on the number of windows you would like us to survey and how long your chat with our Surveyor takes, but we usually say around 40 minutes to an hour.

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Do you only renovate sash windows?

We specialise in sash windows but we also provide new casement windows, Yorkshire sliders, French doors – anything timber. Please get in touch to discuss your requirements.

12

Can I buy your product from you and do the work myself?

We can supply complete new windows, however we don’t sell component parts.

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Where abouts in the UK do you work?

We cover mainland England, Scotland and Wales

14

Are your Installers all Ventrolla employees & Ventrolla trained?

Yes, all our staff are Ventrolla trained employees in all our offices throughout the UK and audited to our specification. All our work comes with a Ventrolla 10 year guarantee.

15

Can you help with a condensation problem?

The main way you can combat a condensation problem is to further ventilate your home (i.e. open your windows from time to time). The moisture in your home is caused by heating, bodies etc. and it settles on the nearest cold surface – usually your windows. Double Glazing units will be slightly less cold and therefore you may notice slightly less condensation, however, your home will also be better insulated, thus more moisture may be contained within your home.

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What kind of wood do you use?

For new joinery we use a hardwood, usually Sapele or Accoya, though we can use other woods if specified. Please ask your Surveyor or see your detailed quotation for further information on the recommended materials.

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Do you offer a guarantee?

Yes, all our work is guaranteed for 10 years

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Get in touch

Enhance your building’s character, value, and efficiency.

For an expert consultation, condition report, and estimate – or for bespoke advice or brochure requests – please get in touch: