London
Sash Window Repair and Timber Window Restoration in London
London has every kind of heritage window there is. Tall Georgian sashes in Bloomsbury and Mayfair. Victorian bays across Notting Hill, Islington and Clapham. Edwardian detailing in Richmond, Wimbledon and Dulwich. Centuries of architecture layered onto centuries more. For more than 40 years, Ventrolla has been restoring timber sash windows and crafting period doors that give the capital its character – from listed Georgian townhouses in Westminster to Victorian terraces in Hackney and Islington, and period properties across Central, North, South and West London.
Tel: 0800 0277454
Email: info@ventrolla.co.uk
Why choose Ventrolla for your windows and doors in London
British Craftsmanship
Every window handcrafted by our master joiners and local craftsmen.
Sustainably sourced
Durable, premium timber built to last.
Listed Property specialists
Our national team of master craftsmen, have unrivalled knowledge and expertise.
Rated excellent on Trustpilot
Five-star reviews from heritage property owners across the UK.
Over 1 million windows restored
Four decades of specialist window restoration and timber doors expertise.
Nationwide service
Locally based surveyors and craftspeople.
Before/after
Our London window restoration work
Sash window restoration in London property
After
From tall Georgian sashes to Victorian bays, our before-and-after gallery shows the range of London window restoration across residential and commercial buildings.
Before
After
After
After
Trusted by many
Ventrolla in your words
Thank you Ventrolla London!
An excellent experience
Full marks for Ventrolla London
We bought a Georgian house in London…
High quality work and great customer service
Very happy
Heritage window specialists for period homes in London
London carries the highest concentration of listed buildings and conservation areas in the UK, and no other city asks more of a heritage window specialist. With over 40 years’ experience, our local surveyors know borough-level planning, conservation area restrictions, and listed building consent processes inside out.
We often work with conservation officers, architects, heritage consultants, and contractors, and Ventrolla Consult supports you from the first planning conversation. Whatever the scale of your project, from a single sash repair to a full façade renovation, we tailor every solution to the property and its planning status.
Visit our showroom in The Building Centre – by appointment only.
Your neighbours trust us too
Our London team works with property owners across Westminster, Kensington & Chelsea, Camden, Islington, Hampstead, Notting Hill, Clapham, Dulwich, Greenwich, Wimbledon and Richmond – and throughout Greater London. Much of our work comes through recommendation within terraces and mansion blocks, where neighbouring properties often require similar restoration.
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
About London’s architecture
London’s period homes span Georgian, Victorian, and Edwardian architecture, each with its own window style and detailing. But the problems are usually the same: perished cords, rattling sashes, draughts, rotted cills, failed putty, and paint build-up that seizes windows shut.
Our award-winning Ventrolla Perimeter Sealing System (VPSS™), bespoke joinery, and specialist glazing services tackle all of these challenges – preserving the character of your windows while bringing them up to modern standards of comfort, with up to 30% energy efficiency, and noise reduction.
accreditations
Complimentary window survey in London
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
Do you offer sash window restoration across London?
Yes, we provide professional sash window restoration services across London, including North, South, East and West London. Whether your windows need draught-proofing, timber repairs, rebalancing or full refurbishment, we can help.
Can you repair timber windows in London, or do they need replacing?
In many cases, timber windows can be repaired rather than replaced. We specialise in restoring original wooden windows, including sash and casement styles, helping retain period character while improving performance.
Do you provide timber window repair near me in London?
Yes, our teams cover London-wide and can attend properties across all boroughs. If you’re searching for timber window repair near you, we can arrange a site visit by one of our heritage surveyors, who will provide a detailed quotation.
Are you experienced with historic and period sash windows in London homes?
London is full of Georgian, Victorian and Edwardian properties, and we regularly restore heritage sash windows while maintaining original detailing, proportions and architectural integrity.
How much does sash window restoration cost in London?
Costs depend on the condition of the windows and the level of work required. We offer tailored quotes based on inspection, whether you need minor timber repairs, full refurbishment, draught-proofing, or glazing upgrades.
Do you work on historic and listed buildings in London?
Yes. We regularly work on heritage, conservation area, and listed properties across London. Our team understands the importance of maintaining architectural integrity, ensuring all restoration or replacement work respects original design intent and period detailing.
Can you fix draughty sash windows in London homes?
Yes. Draught-proofing is a core part of our service. Our systems are designed specifically for traditional timber sash windows, reducing heat loss and noise infiltration while preserving the original look and smooth operation of the window.
What happens if my original sash windows are beyond repair?
If restoration is not viable, we provide sympathetic replacement options. These are carefully designed to match original proportions, materials and detailing, ensuring continuity of appearance while delivering modern levels of durability and performance.