Combining timeless aesthetics with modern performance, our uPVC sliding sash windows offer the best of both worlds. These windows replicate the classic design of traditional sash windows, complete with optional glazing bars for an authentic look. However, they’re crafted from uPVC, a highly durable and low-maintenance material that boasts excellent thermal efficiency.
Contact UsMade from uPVC, our sliding sash windows require virtually no maintenance to keep them looking great and performing well!
Travel restrictors boost safety by limiting the amount the window can slide open, making it perfect for homes with children.
Our expert family-run team is on hand to offer advice and answer any questions you may have throughout the entire process.
Sliding sash windows are a traditional design found in many historic homes across the UK; our designs made with uPVC add a touch of heritage charm.
Although most sliding sash windows were traditionally made with timber, uPVC is a much more budget-friendly material.
With insulating uPVC and double glazing, our sliding sash windows are designed to reduce heat loss and keep energy costs low.
Colour Options
Browse our extensive colour range! We offer timeless neutrals, bold colours and everything in between. We can even offer a range of wood-grain finishes that mimic timber.
Contact UsCream
Light Oak
Rosewood
White Woodgrain
White
Hardware Options
To personalise your sliding sash windows and achieve the perfect finishing touch, we offer a variety of high-quality hardware options.
Contact UsHeritage Knob
Standard Knob
Standard Lock
Heritage Lock
D Handle
Pole Eye
Travel Restrictor
Lift Hook
Downloads
Browse our FAQs below to find answers to commonly asked questions.
01205 311144Sliding sash windows feature two sashes that slide vertically up and down within separate tracks. Unlike casement windows that swing outward, sliding sashes operate by moving them up or down to open and close.
While timber offers a classic look, opt for uPVC sliding sash windows for their affordability, low maintenance, and excellent thermal efficiency.
Absolutely! Sliding sash windows in uPVC replicate the look of traditional timber windows, especially when combined wood-grain finishes for uPVC. If your home is in a conservation area, you’ll need to check with local planning authorities.
Contact Boston Trade Frames today! We offer free consultations and quotes. Our friendly team will be happy to discuss your project requirements and recommend the perfect window for your needs.
Of course – we offer a range of customisation options including colours, finishes and hardware. You can even choose decorative glass and glazing bars!
Browse our window products to find the best solution.
Our uPVC sliding sash windows replicate the timeless elegance of timber sashes, complete with optional glazing bars for an authentic touch. However, unlike timber, uPVC requires minimal upkeep. You won't need to worry about regular sanding or painting, allowing you to enjoy the beauty of these windows for years to come with minimal effort. This makes uPVC sliding sash windows a perfect choice for busy modern homeowners who value both aesthetics and convenience!
Contact UsDon't just take our word for it. Read what our satisfied customers have to say about Boston Trade Frames.
Quality products at a good price
Dean Brotherton
Had Nigel do our double glazing on the front. Great price and great job.
Richard Phillips
Good quality products at a good price helpful and quality customer service would definitely recommend
Kevin Cook
Nigel Apps, owner and director of Boston Trade Frames, has dedicated his career to windows. He began in joinery, then transitioned to manufacturing high-quality uPVC windows.
Nigel's unparalleled knowledge and expertise ensures that you get exceptional windows, doors and conservatories for every project.
Browse our entire product range to find the perfect solution for your project.
At our Boston factory, our close-knit team utilises cutting-edge machinery and years of experience to craft high-performance windows and doors. We manufacture systems from industry leaders such as Kömmerling and Solidor.
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