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Made in the UK

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40 Year Heritage

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Unique Patented Products

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Extensive Warranties

Classic home improvements built on future-proof technology

Continually investing in the best machinery, technology, and software has enabled us to remain at the top of the UK's timber window renovation industry for over 40 years. Our recognised industry-leading experts deliver authentic heritage craftsmanship, backed by next-generation technologies that guarantee compliance, safety, on-schedule delivery, and effective cost-management across all projects. Supported by our dedicated research and development department, we continue to lead the market with unique products and services tailored to discerning homeowners, architects and property developers.

A Ventrolla van

A culture of innovation

Relentlessly breaking new ground and thinking creatively is what sets us apart. After all, it all began with Ventrolla’s founder utilising skills from his previous job at Ford Motors to create the first perimeter sealing system for draught-proofing historic sash windows. Always looking forward, Ventrolla has a bright future ahead. Fusing our unrivalled experience and heritage with the latest technology, new Ventrolla products on the horizon include:

  • Smart sashes controlled by remote or smartphone app
  • ‘Secured By Design’ accredited timber windows
  • Augmented reality (AR) integration to visualise products in situ
  • A high-tech design studio to experience our innovative products in person
  • Much more coming soon…
curved white sash window

Dedicated research & development department

To achieve the new products and services mentioned above, plus much more, we have recently launched an exciting new Research & Development Department. An integral part of our thriving workshop, our determined research & development team has begun trialing and testing new product enhancements and developments to help us understand and accommodate evolving consumer needs.

Keeping an eye on the future, making sure our services and your property deliver the best possible value and sustainable longevity for generations to come is of paramount importance to us.

Get in Touch

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.



Fusing traditional skills with modern technology, 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 manufactured products and renovation works that exceed our customers’ expectations. Depending on the project, our installation team will be on site between weeks 10 to 16.



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.

What our customers are saying

Thank you very much for an excellent job, by some of the nicest, most professional builders I have had working here for three decades.

Mrs Schecter, Kensington

Excellent service from the fitters. Extremely impressed with their tools and equipment to carry out the works. Certainly knew what they were doing. A welcome change

Mr & Mrs Kukk, Whitby

We were most impressed with the speed of your reply, the sympathy you had with the building’s integrity, the quality of your demo kit and the attention to detail in your quote. You are an excellent advocate for your company.

Mary Sherwood

Hi Jarrod I refer to our recent telephone conversation and as agreed, attach hereto formal confirmation of my satisfaction with the works undertaken by your company. Ian and Lee are a credit to your business and from my discussions with them, I can tell that they really enjoy being part of the Ventrolla team.


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