Whilst they are visually different, our lipped casement window system shares the same advanced technology as our flush casement window technology, and brings the same benefits of security, warmth, warp resistance, weathering and glazing performance.
The combination of double glazing and engineered timber means you can rely on their continuous energy efficiency and low maintenance. We do not compromise on style when it comes to efficiency, and we want our customers to know their energy costs will be reduced once they have had a lipped casement window installed. Their place in British Fenestration can be traced back to the 1950's when modern production systems demanded a window with greater tolerances that could be manufactured economically in volume.
This type of window suits many styles of property from modern apartments to country cottages. Many modern timber window systems are modelled on the lipped design and such windows have become a familiar feature in British homes.

“Timber lipped casement windows offer a perfect blend of classic British design and cutting-edge performance. Their slightly proud profile not only adds character to a wide range of property styles but also enhances weather resistance and durability. Engineered timber and advanced glazing technology ensure these windows deliver outstanding thermal efficiency, security, and low maintenance, making them a timeless and practical choice for any home."
Our process starts with a personalised consultation where a door specialist listens to your needs and recommends styles, colours, glazing and hardware to suit your home's character. Once you’ve made your selections, we take precise measurements to ensure a perfect fit and arrange an installation date that works for you. Our experienced team carries out the installation with care and precision, ensuring every door and window is properly fitted, and we'll guide you through how to operate and maintain your new products once the work is complete.
Aside from their distinctive and characterful appearance, timber lipped casement windows are a favourite choice for both period property renovations and modern homes looking for superior performance and style.
Their slightly proud profile, combined with customisable finishes, makes lipped casement windows suitable for a wide range of properties, from country cottages to contemporary apartments. They offer the flexibility to maintain traditional charm while providing modern benefits.
The lipped design adds an extra layer of security, helping to seal the window tightly against the frame. Combined with advanced locking mechanisms, these windows offer outstanding protection and peace of mind for homeowners.
Thanks to engineered timber construction and durable factory-applied coatings, timber lipped casement windows are built to withstand the elements and resist warping. With minimal maintenance, they can offer decades of reliable performance.
Timber lipped casement windows combine the natural insulating properties of timber with high-performance glazing. They are designed to retain warmth in colder months and keep homes cool during the summer, improving comfort and helping to lower energy bills year-round.
"We are very complementary of the Timber Windows of Horndean & Winchester team. The installation and aftercare has been fantastic, and there was always great communication throughout."
"Could not fault Timber Windows of Horndean, everything was quoted and all on time. The work was done professionally and cleanly."
"We were looking for hardwood and excellent quality which we found here. We loved that it was a family business - the sales personnel and the fitters answered all my questions immediately or found out and gave feedback as soon as they could - amazing!"
"The reason for choosing Timber Windows of Horndean & Winchester was because I was recommended by a friend, who has used the company before and was very pleased with their work. The whole process moved very smoothly, with all the appointments kept on time. All the staff are friendly and courteous. The installation teams were excellent and the clean up at the end was impressive. I would recommend Timber Windows of Horndean & Winchester. "
