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Knowledge Hub

Learn how to get the very best from your heritage building

Knowledge Hub

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.

Our Team

Projects

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

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

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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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brochure

Request a Brochure

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

Henley-on-Thames

Sash Window Repair and Timber Window Restoration in Henley-on-Thames

From casement windows to Georgian sashes, the heritage windows of Henley-on-Thames are part of what makes the town one of the most distinctive in Britain. At Ventrolla, we’ve spent more than 40 years restoring the heritage timber windows and doors that give Henley its character, working with residential and commercial building owners across the town and the surrounding Chilterns.

Sash Window Repair and Timber Window Restoration in Henley-on-Thames

Why choose Ventrolla for your windows & doors in Henley-on-Thames

British Craftsmanship

British Craftsmanship

Every window handcrafted by our master joiners and local craftsmen.

Sustainably sourced

Sustainably sourced

Durable, premium timber built to last.

Listed Property specialists

Listed Property specialists

Our national team of master craftsmen, have unrivalled knowledge and expertise.

Rated excellent on Trustpilot

Rated excellent on Trustpilot

Five-star reviews from heritage property owners across the UK.

Over 1 million windows restored

Over 1 million windows restored

Four decades of specialist window restoration and timber doors expertise.

Nationwide service

Nationwide service

Locally based surveyors and craftspeople.

Our Henley window restoration work

Before

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After

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From medieval timber-framed properties to townhouses and riverside homes, our Henley renovation work includes casement repair, Georgian sash restoration, bespoke heritage joinery, and more.

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Trusted by many

Ventrolla in your words

Excellent

Star rating
Trustpilot
Star rating

Hardwood French Doors

Ventrolla recently designed, manufactured and installed a set of replacement hardwood French doors for my living room. The service was excellent throughout, from initial quotation, through detailed measurement survey, manufacture and finally installation. I was kept informed of progress throughout and had the opportunity to visit their works and see the doors in manufacture. I would have no hesitation in using their services again.

G Peattie

Star rating

Ventrolla restored our original 1860's sash windows

Ventrolla restored our original 1860's sash windows and fitted their draught proofing system. A wonderful improvement and a warm house! We are delighted with the quality of the work and competitive price. The windows are now looking great and are easy to maintain. We have recently had very helpful after sales backup with a lost part. Thankyou Ventrolla.

James Sneyd

Star rating

Top quality materials and workmanship

We've used Ventrolla 5 times over the past 20 years, most recently to replace some of our existing single-glazed sashes with double-glazed ones. These are visually identical to the originals, and run in the same boxes, so only the sliding bits have been changed. The Ventrolla system that allows removal for decoration etc. is great, and we've always been very impressed with the fitters, most recently Derek Oswald, who always arrived on time, was polite, knowledgable and helpful, and made extra efforts preparing the room with dust sheets and tidying up afterwards to ensure that everything stayed clean and dust-free.

Tom

Heritage window specialists for period homes across Henley

Much of Henley sits within a conservation area or includes listed buildings, particularly in the town’s historic core and along the riverside. Our surveyors understand the planning landscape here and work sensitively with conservation officers to ensure every restoration respects both the building and its setting.

Whether you own a Georgian townhouse or a timber-framed cottage in one of the surrounding villages, our local team can guide you through the process – and our Ventrolla Consult service supports listed-building consent and conservation applications from the earliest stage.

Your neighbours trust us too

We’ve been in your neighbourhood

Our Henley team knows this area inside out – from the town centre and along the Thames, through the villages of Remenham, Hambleden, Shiplake, Wargrave and across the Chilterns and wider South Oxfordshire.

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our promise

Up to

10 years

Manufacturing guarantee

Up to

20 years

Window glazing guarantee

Up to

10 years

Paintwork finish guarantee

Up to

30 years

Rot and decay guarantee

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About Henley’s architecture

Henley’s window heritage is a blend of medieval and Georgian. Leaded casements in timber-framed buildings often suffer from rotting cills and sagging frames; Georgian sashes carry the usual ageing issues – perished cords, rattling sashes, draughts, and paint build-up.

At Ventrolla, restoration always comes before replacement. Our award-winning patented Perimeter Sealing System (VPSS™) provides invisible draught-proofing to improve energy efficiency by up to 30%, while our bespoke joinery replicates the original profile of your windows for a sympathetic restoration that maintains your building’s unique character.

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accreditations

Complimentary window survey in Henley

Book a complimentary window survey with one of our heritage surveyors to provide advice on the options available to you. We provide practical advice on restoration vs. replacement to guide on whether your windows can be restored rather than replaced. If windows are beyond repair we will provide you with the best options for replacement to ensure your period home retains its original features whilst improving performance.

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Frequently asked questions

01

Why do homeowners in Henley-on-Thames choose sash window restoration over replacement?

Many homes in Henley-on-Thames feature original timber sash windows that contribute significantly to the property’s architectural character and market value. Restoration allows homeowners to preserve these important period features while improving window performance, comfort and energy efficiency. In many cases, restoring original timber windows helps maintain the authenticity that makes heritage properties in Henley-on-Thames so desirable

02

Can Ventrolla restore windows in riverside properties near the Thames?

Yes. Properties located close to the River Thames can experience increased exposure to moisture and changing weather conditions. Ventrolla’s specialist timber window restoration services help address common issues associated with ageing timber windows, including deterioration, draughts and operational problems, helping to protect your windows for the long term.

03

Do you work on Georgian, Victorian and Edwardian homes in Henley-on-Thames?

Absolutely. Our craftsmen have extensive experience restoring timber sash and casement windows across a wide range of period properties. Whether your home is a Georgian townhouse, Victorian villa, Edwardian residence or a character property in one of Henley’s conservation areas, we can provide tailored restoration solutions that respect the original design of the building.

04

How can I reduce draughts in my period property without replacing the windows?

Ventrolla’s restoration services are specifically designed to improve the performance of original timber windows. Our proprietary Ventrolla Perimeter Sealing System (VPSS) helps reduce draughts, rattles and heat loss while maintaining the appearance of traditional sash windows. This allows homeowners to enjoy greater comfort without compromising the property’s character.

05

Are your restoration services suitable for conservation area properties in Henley-on-Thames?

Yes. Henley-on-Thames contains a number of historic buildings and conservation-sensitive areas where preserving original architectural features is particularly important. Ventrolla’s restoration-first approach focuses on retaining existing timber windows wherever possible, helping homeowners protect the heritage and visual appeal of their property.

06

Can restoring my timber windows improve energy efficiency?

Yes. Older timber windows can often be upgraded through professional restoration, draught-proofing and glazing improvements. By reducing unwanted air leakage and improving thermal performance, restored windows can contribute to a warmer, more energy-efficient home while preserving the original appearance of the property.

07

What are the signs that my sash windows need professional restoration?

Common indicators include windows that stick or are difficult to open, rattling sashes, visible timber deterioration, peeling paint, draughts, excessive external noise and poor thermal performance. Addressing these issues early can help prevent more extensive repairs and preserve the condition of your original windows.

08

Can you improve sound insulation in homes located near busy roads and town-centre areas in Henley-on-Thames?

Yes. Many homeowners in Henley-on-Thames seek solutions to reduce external noise while retaining their original windows. Depending on the property’s requirements, Ventrolla can recommend restoration measures, draught-proofing systems and secondary glazing solutions designed to improve acoustic performance and enhance comfort.

09

How does professional window restoration help protect the value of a period home?

Original timber windows are often viewed as an important heritage feature in period properties. Well-maintained and professionally restored windows can help preserve a property’s architectural integrity, kerb appeal and long-term desirability. For many homeowners, restoration is an investment in both the appearance and future value of their home.

10

Why choose Ventrolla for sash window restoration in Henley-on-Thames?

With more than 40 years of specialist experience and over one million timber windows restored nationwide, Ventrolla is one of the UK’s most trusted names in heritage window restoration. Our skilled craftsmen combine traditional expertise with innovative solutions such as VPSS, helping homeowners in Henley-on-Thames preserve the beauty, performance and heritage value of their original timber windows.