uPVC sliding sash windows
The classic look of timber sliders with the modern performance of uPVC
If you’re replacing worn out timber sash windows or planning to update a period property, our uPVC sliding sash windows are the ideal solution. Designed to replicate the elegant style of traditional Victorian sliders, they bring timeless charm to your home without the issues that come with timber.
Why upgrade to uPVC sash windows?
No more flaking paint, draughts or rattling frames – just smooth operation, improved insulation and long-lasting performance.
Whether you’re restoring a Georgian terrace or upgrading tired windows in a cottage or town house, we’ll help you find the right finish and fit.
Like our normal uPVC windows, they’re durable, energy-efficient, and surprisingly versatile when it comes to customisation.
- Looks like timber
Traditional sightlines, optional run-through horns and woodgrain finishes for a realistic, heritage feel - No more maintenance
Forget regular repainting or swollen timber. uPVC is easy to clean and built to last - Smooth sliding action
Spring balances make opening and closing effortless - Better thermal performance
A-rated for energy efficiency with double or triple glazing options available
Over 200+ happy client reviews
A great family run company based in Kent, but operate in a wider SE area. They did an excellent job for me in East Sussex replacing three windows: competitive, high quality windows and professional installation. A very friendly and professional company.
– Richard Eden-Green
From quote to post-install checks, everything went pretty smoothly and all those involved (Will, Seb, Sean and Dave) were polite, efficient and fixed any issues that arose quickly and well. The windows look great, are supposedly slightly higher (A+) efficiency than some competitors and have reduced the noise in the house a lot. Highly recommend.
– Stephen Casey
I found House of Glass brilliant to deal with. I needed my windows in a hurry and they delivered without any issues. The windows look great and we are very pleased with them. The team at House of Glass were very professional, friendly and I found the whole process from ordering to installation very easy. Thank you House of Glass. I would happy recommend them to anyone.
– Angus Wright
From quote to post-install checks, everything went pretty smoothly and all those involved (Will, Seb, Sean and Dave) were polite, efficient and fixed any issues that arose quickly and well. The windows look great, are supposedly slightly higher (A+) efficiency than some competitors and have reduced the noise in the house a lot. Highly recommend
– Full House Double Glazing Replacement
Fantastic new windows! Great experience from start to finish! ⭐️⭐️⭐️⭐️⭐️
– Sally Jefferies
The sales staff has full knowledge of the window production and also provided related advice on home refurbishment. He quote is comprehensive. I did not choose the company because of price.
– Window Installation (SM1)
Very good service from quotation through to installation. Allowed us time to make our decision following quote. Installation to a high standard. Would recommend and use again.
– Window Replacement (TN35)
Customise your windows to suit your home
We supply replacement sash windows from two of the UK’s leading uPVC sash specialists – Roseview Windows and ECOSlide. Both offer exceptional detail and finish, perfect for timber window replacements in conservation areas or older homes.
Colours & Finishes
Choose from White, Cream, Chartwell Green, Grey, or heritage woodgrain effects like Rosewood and Golden Oak. Smooth and textured foils available.
Heritage Features
Optional Georgian or astragal bars, run-through horns, deep bottom rails and mechanical joints for an authentic, timber-style finish.
Glazing Options
Choose from double or triple glazing, acoustic glass for noise reduction, or decorative glass to replicate your home’s original detailing. We also offer toughened or laminated glass for added security.
Hardware & Extras
Available with traditional sash lifts, pole eyes and locking catches in Chrome, Gold, Satin, Black or White finishes. Trickle vents and restrictors available where required.
A sash window replacement with no compromises – Our customers come to us when they’re fed up with the upkeep, draughts or poor performance of their old timber windows – but still want to keep the character of their property. Whether you’re replacing one window or the whole house, our sash windows deliver the best of both worlds: period styling with modern comfort, efficiency and security.
Trusted suppliers, expert installation
We supply uPVC sliding sash windows from Roseview Windows and ECOSlide, two of the most respected names in heritage-style sash window manufacturing. With authentic detailing and excellent energy performance, they’re a trusted choice for thousands of homes across the UK.
All windows are made to measure and installed by our in-house, FENSA registered team. No subcontractors, no mess, no stress – just expert replacement window installation from start to finish.
Why choose House of Glass?
When it comes to home improvements, trust matters. At House of Glass, we’ve built our reputation on honest pricing, quality workmanship, and good old-fashioned customer care. As a family-run business, we treat your home like it’s our own – no pushy sales, no inflated prices, just genuine service from start to finish.
- 10-Year Insurance-Backed Guarantee
Your investment is protected for the long term with a comprehensive warranty on all windows and installations. - FENSA Registered
Our installations meet the highest industry standards, giving you complete peace of mind your installation meets building regulations. - Expert In-House Fitters
No subcontractors, just our experienced and trusted team. Our skilled installers ensure a seamless, professional installation. - Family-Run Business
We offer a personal, customer-focused service with honest advice and no pushy sales tactics.
Frequently asked questions
Got a question? We’re here to help! Below you’ll find answers to some of the most common queries about our replacement sash windows, installation process, and services. If there’s anything else you’d like to know, please don’t hesitate to get in touch with our friendly team
Can uPVC sash windows really match the look of timber?
Yes. Modern uPVC sash windows from Roseview and ECOSlide are designed to replicate traditional timber frames with features like woodgrain finishes, run-through horns, mechanical joints and authentic glazing bars.
Are your sash windows suitable for listed buildings or conservation areas?
While uPVC can be used in many period homes, listed buildings or homes in conservation areas may require approval. We’re happy to advise on what’s suitable and provide detailed specifications to support any application.
Do the windows slide like original sash windows?
They do. Our sliding sash windows use a smooth-running spring balance system for easy operation, and can tilt inwards to make cleaning safer and simpler.
Can you replace my existing timber sash windows with these?
Yes, and we do it all the time. We’ll carefully measure your existing openings and replace your old frames with modern uPVC sash windows that maintain the character of your home without the ongoing maintenance.
Are your sash windows energy efficient?
Very. All of our sash windows are A-rated for thermal efficiency, with options for double or triple glazing. They’re a great way to reduce heat loss in older properties.
How quickly can I get a quote?
We offer same-day quotes and appointments for your convenience so contact us anytime to arrange yours.
What warranty do your installations come with?
All our uPVC windows come with a 10-year insurance-backed guarantee for complete peace of mind.
Can you install other matching products?
Definitely! As a leading home improvement company in Kent we can supply everything from windows, doors, uPVC and Aluminium bifolds, sliding doors and conservatory roof replacements. Our aim is always to deliver a seamless, cohesive finish throughout your home.
Are you FENSA registered?
Absolutely. As a FENSA-registered company, we adhere to strict standards for quality and compliance, ensuring your installation meets all necessary regulations.
Do you offer finance?
Yes, we offer flexible finance at 12.9% APR with low deposits to make upgrading your home affordable.
Are your fitters employed by you?
Absolutely! We employ experienced, fully trained, in-house fitters dedicated to quality installations.
Ready to replace your sash windows?
We’ve helped homeowners across Kent, South East London, South Essex, East Sussex and West Sussex upgrade their properties with beautifully styled uPVC sash windows that preserve heritage charm while fixing long-standing problems.
Get in touch today for a free, no obligation quote and expert guidance