Nationwide Coverage

uk icon

Made in the UK

40 year icon

40 Year Heritage

unique icon

Unique Patented Products

warranties icon

Extensive Warranties

21st Century precision fused with traditional, handcrafted expertise

As 21st Century Traditionalists, our UK workshops use the latest machinery and the finest materials, whilst staying true to timeless carpentry methods. Manufacturing our own timber windows in-house for over 40 years, the original combination of 'through' or 'solid' glazing bars coupled with classic craftsmanship is what set's our products apart from the rest.

With workshops based in Harrogate, Henley-on-Thames, and Lockerbie, manufacturing our window products in-house gives all parties involved complete control of the process from start to finish - from design to customisation and pricing to communication, we’re with you every step of the way.

frames at workshop

Bespoke period window designs,

Maintaining the highest standards time and time again, our team of joinery specialists can replicate any joinery design with ease and finesse.

Our classic period sash window features & optional extras include:

  • Unique draught-proofing system, included as standard – independently tested to withstand winds up to 71mph
  • Traditional details, such as heritage glazing bars & decorative sash horns
  • A classic sash weight & pulley system
  • Traditional box sash window frame and sill
  • Period casement window replacements
  • Bespoke single or double-glazed timber windows
  • Replica Georgian, Victorian and Edwardian window designs
  • Large-scale, miniature & unusually shaped made-to-measure timber windows – oval, circular, arched, hoppers – you name it, we’ve made it!
  • A variety of high quality period sash & casement window hardware
Get in touch

A trusted team of craftsmen

Over the years, we have heavily invested in both machinery and skilled bench joiners. We’re thoroughly dedicated to our people and processes, and we’re trained and accredited by a variety of leading industry bodies and associations. The highest quality and performance is guaranteed with Ventrolla period windows and doors.

frames at workshop

Cutting-edge sash window factories in Yorkshire, Oxfordshire & Dumfriesshire

As market-leading timber sash window experts, our continual investment into the best machinery, technology, and software enables us to remain at the top of the UK’s timber window industry. Relentlessly breaking new ground and thinking creatively, our streamlined Harrogate workshop includes:

  • 16,000 sq.ft workshop
  • An impressive collection of modern & classical woodworking machinery, ranging from Tenoners to Spindle Moulders, and mortisers to band resaw – all on hand to make your bespoke products.
  • Impressive software that enables us to track the lifecycle of your order from start to finish.
  • A state-of-the-art glazing & spray-priming department.

We also have the provision to invest in a new CNC 4 sided planer to give us more flexibility in terms of throughput, quality control, and quick setup times…

frames at workshop

So – what do our Workshops do exactly?

  • On average, workshop teams contribute to over 100,000 renovation projects per year, nationwide.
  • Using the information gathered by our surveyors in your home, our team produce the required joinery using detailed drawings and/or templates (for more complex shapes and projects).
  • We train all our teams in-house, in our workshops, and we’re soon to launch our own design studio and training academy to help the next generation get Ventrolla accredited and join our ever-growing team.

Whether you’re a homeowner, installer, architect, or developer, you will always receive a warm welcome with a visit to your nearest Ventrolla factory.

Request an Estimate

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.



Fusing traditional skills with modern technology, 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 manufactured products and renovation works that exceed our customers’ expectations. Depending on the project, our installation team will be on site between weeks 10 to 16.



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

Thank you very much for an excellent job, by some of the nicest, most professional builders I have had working here for three decades.

Mrs Schecter, Kensington

Excellent service from the fitters. Extremely impressed with their tools and equipment to carry out the works. Certainly knew what they were doing. A welcome change

Mr & Mrs Kukk, Whitby

We were most impressed with the speed of your reply, the sympathy you had with the building’s integrity, the quality of your demo kit and the attention to detail in your quote. You are an excellent advocate for your company.

Mary Sherwood

Hi Jarrod I refer to our recent telephone conversation and as agreed, attach hereto formal confirmation of my satisfaction with the works undertaken by your company. Ian and Lee are a credit to your business and from my discussions with them, I can tell that they really enjoy being part of the Ventrolla team.


What to do next

Subscribe to our Newsletter

Stay up to date with the latest news and tips from our Knowledge Hub.