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.

Projects

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

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.

Consultancy & project management

Ensuring seamless and efficient execution for commercial projects.

Projects

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

Restoration and renovation.

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British craftsmanship

Sustainably sourced

10 year guarantee

1M+ windows restored

Nationwide service

Restoration and renovation

Original timber windows and doors embody the character and charm of any heritage property. That’s why, at Ventrolla, restoration and renovation always come before resorting to replacement.

High class, high performance.

Whether your windows and doors are draughty, rattling, or inefficient, our premium service combines period craftsmanship with modern security, thermal, and sound performance. By balancing sympathetic conservation with advanced sustainability, we save over 400 tonnes of carbon per year.

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Like-for-like bespoke joinery services.

From a single window to an entire property or street, our master craftsmen provide a comprehensive service for sympathetic restoration, including:

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Draught-proofing with Ventrolla Perimeter Sealing System (VPSS)
02
Improving ease of maintenance with our Sash Removal System (SRS)
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Replacing cracked glass with high-performance glazing
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Installing discreet secondary glazing
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Sanding and replacing rotten timber
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Reweighing sashes for smooth operation
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Releasing stuck or painted-shut sashes
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Installing durable hardwood sills
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Fitting new, hand-forged ironmongery
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VR90 wood repair system

Our unique wood repair system is designed to extend the life of decaying timber windows and doors in a suitable condition. VR90 is a powerful two-part epoxy resin that restores the strength of your wooden joints and fills gaps, preserving original features while enhancing durability.
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01

Remove decaying wood

We eliminate all decaying wood down to sound timber.
02

Apply stabiliser

We use VR90 WS stabiliser for optimal anchorage.
03

Fill gaps and joints

We apply VR90 filler to gaps and joints, carefully moulding it to match the original profile.
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Planning advisory

For listed buildings and conservation areas, our dedicated planning advisory service offers comprehensive support for all aspects of window and door restoration, ensuring a seamless approval process.

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Projects

We subtly transform the UK’s most beautiful buildings for homeowners, architects and property developers.

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FREQUENTLY ASKED QUESTIONS

01

Do you use sustainable materials?

Whenever possible, we use sustainable and ethically sourced materials.

02

Are your methods eco-friendly?

Yes! By repairing and upgrading existing windows instead of replacing them, we reduce waste and preserve resources.

03

How soon can you start work on my property?

Start times depend on current demand and location. After the initial survey, we’ll provide an estimated start date.

04

Is there a charge for the initial survey?

No, for residential customers, our initial survey is free of charge and includes a no-obligation quote.

05

Do you work on modern properties or only on period homes?

While our focus is on period properties, we also provide services for modern homes with timber windows. We are unable to renovate modern softwood windows but we can replace them.

06

What does Ventrolla specialise in?

We specialise in the repair, renovation, and draught-proofing of sash windows and casement windows, along with wooden doors and period property joinery.

07

What is the lead time for getting the work done?

It differs from office to office dependent on how busy we are and what window work you have chosen, varying from 6 to 14 weeks from order date. Your Surveyor will be able to advise you better on current lead times and our operations team will be able to confirm exact timescales once you place your order.

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What is the process if I want to arrange a survey?

You can get in touch on Freephone 0800 0277 454, email us on info@ventrolla.co.uk, or complete our short enquiry form on our website at www.ventrolla.co.uk. Once we’ve received your enquiry we will be in touch within 2-3 working days to arrange your survey.

09

Do you need scaffolding?

Where possible we do all work in situ and take the sashes out from the inside of the property. Because of this, we ask that the rooms we will be working in are cleared, and we will dust sheet all furnishings. If scaffolding is necessary, i.e. there is limited access or for larger commercial projects, then we would always discuss this with you in advance of the order being placed.

10

How long will the survey take?

It depends on the number of windows you would like us to survey and how long your chat with our Surveyor takes, but we usually say around 40 minutes to an hour.

11

Do you only renovate sash windows?

We specialise in sash windows but we also provide new casement windows, Yorkshire sliders, French doors – anything timber. Please get in touch to discuss your requirements.

12

Can I buy your product from you and do the work myself?

We can supply complete new windows, however we don’t sell component parts.

13

Where abouts in the UK do you work?

We cover mainland England, Scotland and Wales

14

Are your Installers all Ventrolla employees & Ventrolla trained?

Yes, all our staff are Ventrolla trained employees in all our offices throughout the UK and audited to our specification. All our work comes with a Ventrolla 10 year guarantee.

15

Can you help with a condensation problem?

The main way you can combat a condensation problem is to further ventilate your home (i.e. open your windows from time to time). The moisture in your home is caused by heating, bodies etc. and it settles on the nearest cold surface – usually your windows. Double Glazing units will be slightly less cold and therefore you may notice slightly less condensation, however, your home will also be better insulated, thus more moisture may be contained within your home.

16

What kind of wood do you use?

For new joinery we use a hardwood, usually Sapele or Accoya, though we can use other woods if specified. Please ask your Surveyor or see your detailed quotation for further information on the recommended materials.

17

Do you offer a guarantee?

Yes, all our work is guaranteed for 10 years

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Get in touch

Enhance your building’s character, value, and efficiency.

For a complimentary consultation, condition report, and estimate – or for bespoke advice or brochure requests – please get in touch: