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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.

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

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Timber Windows

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

Timber Doors

Manufactured in our bespoke joinery houses.

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Give your heritage building the craftsmanship it deserves.

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Our helpful brochure explains all about our timber restoration and replacement services.

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Consultancy & project management

Ensuring seamless and efficient execution for commercial projects.

Consultancy & project management

Projects

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

Projects

News

September 10, 2025

By Kennady Caines

Ventrolla brings Umberslade Hall windows back to life

Ventrolla, a market leader in heritage restoration and renovation of timber sash and casement windows, has recently completed a refurbishment of 19 sliding sash windows at Umberslade Hall, a 17th century mansion in the Warwickshire village of Tanworth in Arden.

Umberslade Hall is a Grade II listed mansion, once known as the ‘manor of Umberslade’ The old manor house was replaced between 1695 and 1700, with the new mansion built in its place. It stands as a testament to centuries of English architectural prowess.

A total of 19 wooden sash windows and three wooden doors were renovated at the property, which has now been converted into office space and a number of residential apartments. The conditions of the sashes varied, with several sills being completely rotten. Thanks to Ventrolla’s time-honoured restoration techniques, the sashes were meticulously brought back to life. The installation of the Ventrolla Perimeter Sealing System (VPSS) also improved the Window Energy Rating (WER) by up to 30%.

Simon Hateley, Project Manager for Touchstone Consultants, said: “Initially we thought we would have to replace all the sashes, but Ventrolla worked on a single test window to show the quality of the finish achievable through renovation and we were very impressed.”

“Replacement windows would have been costly as well as time consuming to install and as the office was still operational the project needed to be completed quickly and effectively. We are extremely pleased with the service Ventrolla provided.”

Mark Flanagan, Managing Director of Ventrolla, added: “When Simon first got in touch to discuss this project, they were looking to replace the windows. However, we knew we could get a top-quality product from restoration, for a much better cost. Umberslade Hall holds a lot of architectural importance, so it was great to be able to bring it back to its former glory. As the property embarks on its next chapter, the legacy of the timber windows will stand as a testament to the enduring value of preservation.”