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Timber sash window 1080 x 1080 in white

Why choose Ventrolla?

  • Expertise: With over 40 years of experience, Ventrolla is a trusted name in window renovation and restoration. Our skilled craftsmen are dedicated to preserving the beauty and functionality of your windows.
  • Quality Products: We use only the highest quality materials to ensure long-lasting results, combined with exclusive Ventrolla Sash Removal system – make upkeep in spring a breeze. Whether it’s sash window repairs, draught-proofing, or complete window replacement, we’ve got you covered.
  • Energy Efficiency: Our window solutions are designed to improve insulation and energy efficiency, helping you reduce your energy bills and create a more comfortable living environment.
  • Professional Service: From the initial consultation to the final installation, our team of professionals will guide you through the process, ensuring excellent customer service every step of the way.
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Primrose Hill London

Place your new order in April & May to enjoy a 10% discount on the total cost

Take advantage of this limited time offer and transform your windows with Ventrolla’s craftsmanship. Enhance the beauty, comfort, and energy efficiency of your space while saving with our Spring Sale. Don’t wait—book your consultation today!


Terms & Conditions:

This offer is valid for new orders placed between the 15th to the 30th April 2024. NOW EXTENDED to the 14th May! It cannot be combined with any other promotions or discounts.

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Contact us now to save

Our friendly team are on hand to talk through your timber window project by calling 0800 0277 454, emailing or completing our online form

Our Process



The Ventrolla journey begins with a discussion with a member of our team and/or a detailed home or site design survey, to explore your ideas & devise a bespoke plan of action.



Once our team have finalised the plans, we will provide a comprehensive estimate for your works. Enquiry to estimate typically takes between 5 and 10 working days.



Ventrolla fuse traditional skills with modern technology. If you require new joinery, creating your unique product begins in our UK-based manufacturing facility, and takes between 6 and 10 weeks.



The utmost care is taken to deliver quality products and renovation works that exceed our customers’ expectations. Varying from area to area, Ventrolla lead times depend on how busy we are, and the work required. On average, our installation team will be on site between 6 to 18 weeks from the date your order is placed. We will advise guide installation dates when you place your order.



Our customers come back time and time again – when they move or if they’ve phased their works – all thanks to our exceptional customer service and after care. In the unlikely event that your Ventrolla products require expert attention, we’re always on hand.



Renowned for delivering outstanding quality, all our work comes with a minimum 5-year guarantee (subject to terms), for absolute peace of mind.

What our customers are saying

Ventrolla were able to beat all the other quotations that I received and answered queries quickly and informatively, making changes as required promptly and without fuss. I was kept informed throughout of lead times and manufacturing times. The real stars of the show were Rob and James who worked tirlessly and brilliantly as a team to repair sash boxes where required and install our new sashes. Thank you!


Everybody I dealt with has been super friendly, informative, and helpful. I received emails with updates on what was happening, etc. It has been a great experience from start to finish.


I used Ventrolla to renovate my sash windows over to years ago. When two of them finally collapsed, including a bay window the size of three full sized Georgian windows they were my first contact. The office staff, surveyors and the three fitters that did an amazing job installing them in less than two days were all excellent. The quality of workmanship and the standard of installation were first class, and the new windows look amazing. I will definitely be using them again as more of my windows will need replacing over the next few years.


This is the second property Ventrolla have restored my windows for me, and the this job was every bit as good as the first. 14 sash windows in a Grade II listed building installed/refurbed without a hitch in week. The team of 4 installers were lovely chaps, super efficient and tidy. All round another fabulous job done – thank you the Ventrolla Team


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