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Learn how to get the very best from your heritage building

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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.

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

Request a Brochure

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.

Request a Brochure

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

Bath

Sash Window Repair and Timber Window Restoration in Bath

Bath's Georgian architecture is defined as much by its large sash windows as its honey-coloured stone. From the Royal Crescent to Great Pulteney Street, Ventrolla specialises in sash window repair in Bath, alongside the restoration of traditional timber windows and replacement doors for heritage homes and commercial buildings. Combining traditional British craftsmanship with more than 40 years of expertise, we help preserve listed, period and conservation properties in Bath and beyond for generations to come.

Sash Window Repair and Timber Window Restoration in Bath

Why choose Ventrolla for your windows and doors in Bath

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.

Before/after

Our Bath window restoration work

After

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Trusted by many

Ventrolla in your words

Excellent

Star rating
Trustpilot
Star rating

Highly recommend

Ventrolla recently carried out extensive work on the front of our house, including a new replacement window, installation of double glazed sashes and casements, and refurb and repairs to our existing frames. In line with what other reviews have said here, the service we received was brilliant from start to finish, and we couldn't be happier with the results. The care and professionalism shown by our fitters (Andy, Lewis & Miles) was fantastic, and a big thank you to Catherine and Lee for going above and beyond with the aftercare.

D H

Star rating

Excellent restoration on Victorian property

We used Ventrolla to restore a large number of sash windows throughout our Victorian home. I had limited expectations of what could be achieved, but I’m absolutely delighted with the results. The excellent draught-proofing means the curtains no longer billow in the wind, and the restoration means all the windows can now be safely opened, closed and secured. It has made a huge difference to the property. The team were thorough, knowledgeable, and had the positive, problem-solving attitude needed for working on older buildings. I highly recommend Ventrolla for any heritage window projects.

Kj

Star rating

Window Replacement

We had 5 windows replaced and could not be happier with the job. From the estimate by Mark, to measurements by Davie, to office support from Hayley and Diane, to installation by Alan and Kevin everything went like clockwork. Communication throughout was excellent and the windows look great. A pleasure to do business with such a professional team.

Jane Bambridge

Star rating

Returning customer. Great service. I'll be back again.

I am in the process of (slowly )restoring or replacing all the sash and case windows in my home with double glazing. It's in a conservation area and so the finish and design need to match the originals. Ventrolla have provided an excellent service from start to finish. This is the second time we have entrusted them with the task. The most recent installations were carried out by Allan and Lindsay. They were considerate, careful, professional and cleaned up carefully after they finished. I wouldn't hesitate to recommend them to everyone.

Helen Terry

Star rating

Highly recommend!

My new windows are fantastic, I couldn’t be happier with the service from Andy, Lewis, and Miles. From start to finish, the team were friendly, professional and efficient. The work is flawless, and they kept the disruption and mess to a minimum. A huge thank you!

TN

Star rating

Ventrolla restoration of old sash windows

The communication from the office from Zoe and Dan was very timely and clear. The work done on the old sash windows by Carl was outstanding and by Adam also. There were some rotten areas which were expertly and carefully restored and replaced. The duo cleaned up thoroughly after what was a really messy job. Really delighted with the windows revamp

Clare Kelly

Heritage window specialists for period homes across Bath

Owning a home in a UNESCO World Heritage Site is a privilege – and a responsibility. Whether yours is a listed townhouse on the Royal Crescent, a Georgian terrace in Bathwick, or a stuccoed villa in Lansdown, our surveyors know the planning landscape inside out and work hand in hand with local conservation officers.

Original glazing bars, sight lines, ironmongery, paint finishes – every detail is matched. We preserve original features while improving performance, noise reduction and energy efficiency.

We’ve been in your neighbourhood

From the centre and the Royal Crescent out to Widcombe, Bathwick, Lansdown, Larkhall, Weston, and Combe Down – and across the villages surrounding the Somerset countryside – our Bath team has restored sash windows in homes of every scale and era. Chances are, we’ve already worked a few doors down from you.

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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 Bath’s architecture

Bath’s Georgian sashes were designed for elegance, not insulation. Tall proportions, slender glazing bars and fine symmetry make them some of the most beautiful windows in Britain – and some of the draughtiest. Rattling sashes, rotten timber frames and sills, perished cords, whistling meeting rails and decades of paint build-up are all part of the inheritance.

Our award-winning Ventrolla Perimeter Sealing System (VPSS™), discreet draught-proofing, fresh cording and bespoke joinery repairs solve every one of them without compromising the window’s original character. Where timber is past saving, we replicate the exact profile in new joinery, faithful to the Palladian principles that shaped the city.

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accreditations

Complimentary window survey in Bath

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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ENQUIRE

Unit 1
West End Trading Estate
Blackfriars Road
BS48 4DJ

Frequently asked questions

01

Do you offer sash window restoration in Bath?

Yes, we specialise in both the sensitive restoration and replacement of traditional timber windows across Bath and the surrounding areas. Our approach focuses on preserving the architectural integrity of period and heritage properties while improving performance and comfort.

02

Can original timber windows in Bath be repaired instead of replaced?

In many cases, yes. Restoration is always our starting point, with techniques designed to retain as much original timber and detailing as possible. Where windows are beyond repair, we can provide carefully crafted replacement windows that replicate traditional profiles, joinery and sightlines.

03

Do you work on listed buildings and conservation properties in Bath?

We have extensive experience working on Bath’s listed buildings and conservation area properties, ensuring all restoration and replacement work remains sympathetic to the building’s historic character and architectural detailing.

04

What types of sash window repairs do you carry out in Bath?

We carry out a full range of repairs and refurbishment works, including timber splice repairs, sash cord replacement, easing and adjusting, draught-proofing, rotten timber repairs, glazing upgrades and complete window renovation.

05

Do you offer replacement timber sash windows in Bath?

Yes, where existing windows cannot be economically or structurally restored, we manufacture high-quality replacement timber sash windows designed to match the original appearance of the property while delivering modern performance benefits.

06

Do you offer draught-proofing for sash windows in Bath?

Yes, our award-winning VPSS (Ventrolla Perimeter Sealing System) provides discreet draught-proofing for both restored and replacement windows, helping reduce heat loss, improve comfort and minimise outside noise.

07

Can you improve the energy efficiency of heritage windows in Bath?

We offer performance upgrades including vacuum glazing and advanced draught-proofing systems, allowing period properties to achieve significantly improved thermal efficiency while maintaining slim, heritage-appropriate sightlines.

08

Can you repair rotten timber windows in Bath homes?

Yes, timber decay is a common issue in older properties. We carry out specialist timber repairs wherever possible, helping extend the lifespan of original windows while preserving their appearance and character.

09

Can you fix sash windows that are stuck or difficult to open?

Yes, we regularly repair sticking sash windows, broken cords, worn pulleys and poorly balanced sashes, restoring smooth and safe operation as part of our refurbishment process.

10

What areas around Bath do you cover for timber window restoration and replacement?