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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
brochure

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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

Oxford

Sash Window Repair and Timber Window Restoration in Oxfordshire

From Gothic stone mullions to refined Georgian sashes, Oxford’s windows span centuries of architectural history. The city sits at the top of British heritage protection – and its windows demand specialist care. For more than 40 years, Ventrolla has been restoring heritage windows and doors across Oxford’s listed and non-listed buildings, conservation-area homes, and period townhouses.

Sash Window Repair and Timber Window Restoration in Oxfordshire

Why choose Ventrolla for your windows and doors in Oxford

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 Oxfordshire window restoration work

Before

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After

After Image

Every project begins with a detailed on-site survey by an Oxford-based surveyor. Our before-and-after examples show the specialist craftsmanship Oxford’s buildings demand – original profiles faithfully preserved, stone reveals left untouched, and ageing sashes brought back to their full performance.

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Before

Before Image

After

After Image

Every project begins with a detailed on-site survey by an Oxford-based surveyor. Our before-and-after examples show the specialist craftsmanship Oxford’s buildings demand – original profiles faithfully preserved, stone reveals left untouched, and ageing sashes brought back to their full performance.

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Trusted by many

Ventrolla in your words

Excellent

Star rating
Trustpilot
Star rating

Very happy customers again!

Ventrolla have been a pleasure to deal with. From the prompt visit for site survey and throughout the installation, Zoey coordinated everything perfectly. We were delighted to welcome back Carl, our installer from our previous Ventrolla work, because he is such a conscientious and highly skilled craftsman This time he was joined by Dean and also George, a young trainee. The team arrived on time every day and worked well together. Their craftsmanship has been exceptional. They were all so thoughtful and polite and went the extra mile to perfect our windows. We would definitely recommend them!

Carol Halliwell

Star rating

Beautiful windows

A few years ago ventrolla fitted 3 sash and case windows in my victorian flat and they were excellent. We had them back this week to do another 2 sash windows at the back of the flat and we just couldn't be happier with the results. Thank you so much to Paul & Matt who fitted the windows. They were highly skilled, really knowledgeable and worked so hard. All rooms were left tidy and they were really friendly to speak to.

Angel MacRitchie

Star rating

Amazing job!

Rob, James and Tyler did an amazing job with my windows! They arrived on time, were respectful and communicative and replaced the windows in record time. They even tidied up after themselves which some people don’t do so very happy with their service! Will definitely recommend!

SWH

Heritage window specialists for period properties in Oxfordshire

The city’s collegiate architecture is among the most tightly protected. Our surveyors understand the planning landscape here, from listed-building consent to the specific detailing required within the city’s conservation areas.

We work closely with conservation officers, heritage consultants and architects on every project. Our Ventrolla Consult planning advisory service can support listed-building applications from the very first enquiry.

Your neighbours trust us too

We’ve been in your neighbourhood

Our Oxford team works with residential and commercial property owners across Jericho, North Oxford, Summertown, Headington, Iffley, and the city centre – and throughout Oxfordshire, including Woodstock, Burford, Witney, and Abingdon.

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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 Oxford’s architecture

Oxford’s windows are heavier and more decorative than most. Stone mullions and leaded lights feature in older properties, refined sash windows in Georgian additions, and elaborate Gothic detailing in collegiate buildings. Age and exposure take their toll, from cracked glass to perished cords and draughts, the challenges of owning a heritage property are no secret to us.

Our approach is always restoration-led. The award-winning Ventrolla Perimeter Sealing System (VPSS™) delivers effective draught-proofing without any visible trace, while a range of glazing options, including our highest-performing energy-efficient glass, enhances thermal and acoustic performance. Our bespoke joinery faithfully replicates every profile and sight line, ensuring the character of your windows remains unchanged. The result is up to 30% improved energy efficiency, reduced external noise, and enhanced security, all without compromising the original appearance.
cto.

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accreditations

Complimentary window survey in Oxfordshire

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.entore veritatis et quasi architecto.

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Frequently asked questions

01

Do you provide sash window restoration and repair services across Oxford and Oxfordshire?

Yes. Ventrolla provides specialist sash window restoration, timber window repairs and heritage window renovation throughout Oxford, Oxfordshire and the surrounding areas. Whether you own a Georgian townhouse, Victorian terrace, Edwardian property or listed building, our expert craftsmen can restore original timber windows while preserving their historic character and improving performance.

02

Can you repair sash windows in listed buildings and conservation areas in Oxford?

Absolutely. Oxford is home to many listed properties and conservation areas, and our team has extensive experience working on heritage buildings. We specialise in sympathetic restoration that retains original features wherever possible and can advise on suitable solutions that help satisfy conservation and planning requirements.

03

Is it better to restore original sash windows or replace them?

In many cases, restoring original timber sash windows is the preferred option. Traditional timber windows were often manufactured from high-quality hardwoods that can last for generations when properly maintained. Ventrolla’s restoration services help preserve the property’s character, reduce waste and improve performance without unnecessary replacement.

04

Why choose Ventrolla for sash window restoration in Oxford?

For more than 40 years, Ventrolla has been one of the UK’s leading heritage window specialists. Our team combines traditional craftsmanship with innovative solutions such as VPSS and the Sash Removal System (SRS). We have restored over one million timber windows nationwide, helping homeowners protect the character, value and performance of their period properties.

05

How can I make my Oxford sash windows more energy efficient?

Ventrolla offers several solutions to improve energy efficiency, including our award-winning Ventrolla Perimeter Sealing System (VPSS), glazing upgrades and discreet secondary glazing. These improvements can significantly reduce draughts, heat loss and external noise while maintaining the appearance of your original windows.

06

What is the Ventrolla Perimeter Sealing System (VPSS)?

The Ventrolla Perimeter Sealing System (VPSS) is our proprietary draught-proofing solution designed specifically for timber sash and casement windows. The system helps eliminate rattles, reduce draughts, improve thermal efficiency and create smoother window operation, all while preserving the original character of your heritage windows.

07

Do you offer secondary glazing for period properties in Oxford?

Yes. Secondary glazing is an excellent solution for homeowners seeking improved thermal performance and sound insulation without altering original windows. It is particularly popular in Oxford’s listed buildings and conservation areas where maintaining the external appearance of the property is essential.

08

Can you repair rotten timber sash windows?

In many cases, yes. Our skilled craftsmen can often repair decayed timber using specialist restoration techniques rather than replacing entire windows. We carefully assess the condition of each window and carry out sympathetic repairs designed to extend its lifespan while retaining as much original material as possible.

09

How long does sash window restoration take?

Every project is different and depends on the condition, size and number of windows involved. Following a detailed survey, we provide a clear project timeline. Our goal is always to deliver exceptional craftsmanship efficiently while minimising disruption to your home.

10

Do restored sash windows help reduce noise from busy Oxford roads?

Yes. Many homeowners in Oxford choose sash window renovation, secondary glazing and draught-proofing to reduce external noise. Our solutions can help create a quieter, more comfortable home environment, particularly in busy city-centre locations and along main roads.