Our uPVC sash windows bring together the timeless appeal of traditional window design with the modern benefits of uPVC. Ideal for period properties and contemporary homes alike, they provide the perfect solution for homeowners who want to preserve the classic look of sash windows while benefiting from the durability and energy efficiency of modern materials. With a wide range of colour options, security features, and excellent thermal performance, our uPVC sash windows offer a stylish, low-maintenance upgrade to any home.
Crafted to emulate the charm of real timber, these windows are designed for ease of use and longevity. Their multi-chambered profiles offer exceptional weatherproofing and insulation, while options like the slide-and-tilt facility make them as practical as they are beautiful. Whether you’re updating a period home or enhancing the energy efficiency of a modern property, uPVC sash windows provide the perfect balance of aesthetics and performance.
Slide & Tilt Facility: Both the top and bottom sash can slide up and down. An easy clean tilt facility is available for added convenience. Certain specifications do not allow for these features.
Run-Through Horns: Our run-through horns are mechanically jointed and form a continuous part of the top sash giving the window an authentic look. Sash horns are optional.
Mechanical Joints: Upgrade to mechanical joints to take authenticity to the next level. The 45 degree UPVC welds on the frame and sash are replaced with 90 degree joints as found on traditional windows. Woodgrain only.
Seamless Corner Welds: Choose this revolutionary process to disguise the 45-degree corner welds on the outer frame and sashes to give it a far superior aesthetic finish. Woodgrain only.
Colour-Matching Wool pile: Wool pile strips provide an excellent seal against rain and wind. As something new we’ve developed a colour-matching wool pile to ensure that every single window is perfectly finished.
Deep Bottom Rail: A deep bottom rail is the perfect addition if you want your sliding sash windows to look as close to the original timber version as possible. Optional feature. The larger bottom rail sash convincingly mimics the timber sash windows of old. The deep bottom rail is available with welded or mechanical joints.
Trickle Vents: Although a well-insulated home is important, a well-ventilated home is equally as important. Trickle vents provide background ventilation and are generally mandatory under Building Regulations. An internal flap enables the vent to be opened and closed as required.
Astragal Bars: Astragal bars are fixed onto the surface of the glass and are accompanied by back-to-back spacer bars inside the double-glazed unit.
Quick Release Tilt Arms: Quick release tilt arms now come as standard and allow you to remove the top and bottom sashes faster and without the need to remove any screws.
Weather bar: The ovolo shaped weather bar is the latest of our optional design features, developed to keep out wind and rain, and to create an authentic sash window appearance.
“uPVC sash windows combine traditional window designs with modern performance, offering homeowners the best of both worlds. These windows are energy-efficient, highly durable, and low-maintenance, making them a smart choice for a wide variety of properties. The attention to detail in their design, from the mechanical joints to the colour-matching wool pile, ensures an authentic, high-quality finish. Expertly crafted to meet current security standards, these windows are both practical and stylish, providing long-term value.”
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.
Designed to emulate the timeless charm of traditional heritage frames, making them suitable for properties ranging from terraced houses to stately homes. They are crafted from uPVC, offering enhanced durability and resistance to warping or rotting.
With nine standard colours, eight wood grain finishes, and the option to customise with over 200 RAL colours using the Acryl II coating system, these windows allow for complete personalisation to suit any style or property.
uPVC sash windows offer top-tier thermal efficiency, with a U-Value of 1.4 W/m2K and an A energy rating, ensuring better insulation, reduced energy costs, and a more comfortable living environment. They also provide high levels of air and water tightness for all-weather performance.
With practical features such as a slide and tilt facility for easy cleaning, quick-release tilt arms, and the option for a PAS 24 security upgrade, these windows combine traditional elegance with modern functionality and enhanced security.
"The showroom team were fantastic, the fitting was very professional and tidy. The fitters were always keeping everything very clean. Being so high up, good windows were imperative to the house, and Timber Windows really were the perfect fit."
"Could not fault Timber Windows of Horndean, everything as quoted and all on time. The work was done professionally and cleanly."
"Timber Windows Southern were brilliant! We could not fault their service, the windows and doors have been finished off beautifully. Their customer service has been very good."
"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. "
