Ventrolla Sash Window Specialists

Heritage home improvements designed for discerning homeowners, Architects & Property Developers.

Established in 1983, the Ventrolla Group boasts an impressive UK-based manufacturing facility with an unrivalled passion for retaining the unique charm and character that period properties effortlessly offer. Our heritage-inspired products are timeless and high-end whilst also exceeding modern performance expectations.

As market-leading sash window specialists, when it comes to identifying, repairing, and replacing draughty, rotten, and worn original wooden windows and doors, our knowledge and 40 -year experience is second-to-none.

Ventrolla offers a unique renovation service, improving the energy efficiency and operational issues of traditional timber windows in both commercial and domestic projects, whilst also preserving their unique charm and heritage.

Our services include:

• Full restoration and draught-proofing service

• Double Glazing solutions

• Secondary Glazing suitable for Listed Buildings and Conservation areas

• Ventrolla Sash Removal System for ease of future maintenance, meeting with Construction Design & Management Regulations for the provision of ease of maintenance requirements

• Ventrolla Perimeter Sealing System for the elimination of draughts, rattles and improving energy efficiency

• Nationwide with 40 years of experience working with English Heritage, Historic England, CADW, Historic Scotland and Conservation officers

From intricate Victorian mansions to elegant Edwardian cottages and gorgeous Georgian architecture to classic commercial property renovations, our exclusive collection of FSC-certified window and door products fused with our unique patented timber removal and repair systems is what sets us apart. Dedicated to making your or your clients' life more comfortable, our products and services are guaranteed to deliver the highest levels of quality, performance, and style no matter the project size or location.

Ventrolla | Handcrafted heritage windows & doors

Ventrolla is known across the UK for repairing, manufacturing, supplying, and installing a beautiful collection of timber windows and doors, alongside a handpicked selection of sleek aluminium windows and doors. Combined with efficient slimline double glazing, conservation-friendly secondary glazing, or single glazing to suit the most restricted locations, eliminating draughty, noisy, or damaged windows and doors is easy with Ventrolla by your side.

21st Century Machining Meets Traditionally Handcrafted Sightlines

Designed to eliminate draughts, rattles and dust ingress, the Ventrolla Perimeter Sealing System was awarded the prestigious Design Council Award (Engineering Components) in 1986. Using strips of low-friction Weatherfin polypropylene pile to seal the gaps, this patented system, along with our innovative sash removal system, are still core heritage renovation products 35 years on.

With workshops based in Harrogate, Henley-on-Thames, and Lockerbie, manufacturing our products in-house gives all parties involved complete control of the process from start to finish – from customisation to pricing and everything in between.

Breathe new life into your property with new or renovated timber sash windows

Made from two glazed panels that slide open and shut independently of one another, the wooden sliding sash windows of today have come a long way over the last 350 years or so. Manufactured in-house using time-honoured joinery skills fused with future proof technology, with over 35 years’ worth of experience designing completely new timber sash windows that seamlessly replicate the originals, retaining your building's authentic period styling is made easy with Ventrolla. Or, if your original timber sash windows are draughty, rattling, or inefficient, we can also provide industry-leading wooden sash window renovations with our unique patented perimeter sealing system.

Ventrolla is proud to work alongside RFM Group and Centric.