Timber Alternative
uPVC Sliding Sash Windows
- Manufactured In-House
- New Slim Midrail Available Now
- ‘A’ Energy Rated as Standard
- PAS 24 Upgrade for New Builds
- 10-Year Manufacturing Guarantee
Quickslide Legacy uPVC sliding sash windows are double-glazed, vertical sliding windows designed to replicate the look of traditional timber sash windows, using a low-maintenance uPVC frame. They are available in a wide range of colours, offer enhanced security, achieve an A-rated energy performance under the PLC Window Energy Rating scheme, and come with a 10-year manufacturer’s guarantee. Lead times from 2 weeks.
Whether enhancing the aesthetic appeal of a traditional British home or seamlessly blending modern performance with timeless design, Quickslide’s reputation as the go-to name for uPVC sliding sash windows remains unchallenged, setting the standard for excellence and reliability in the industry.
While based in Brighouse, West Yorkshire, we work with a nationwide network of trade partners covering the needs of homeowners across the UK seeking unparalleled craftmanship of traditional timber-looking sash windows.
Read more about our uPVC sash windows below or request a price today.
Home of the Legacy Sash Window
Corner Joints
Standard Mitre Welded Sash
Our standard welding technique ensures that the corners are tightly bonded, creating a seamless and strong connection. The 45° corner welds are carefully cleaned using advanced machinery providing a clean frame finish.
Preview mechanically jointed outer frame and mitre welded sash.
Timber Looking Mechanical Joints
The fully mechanical joints take authenticity to another level because the 45° uPVC welds on the sash are replaced with 90° mechanical joints as found on traditional timber windows.
Run-through Sash Horns
By removing the lip on the sash horn edge, a new refined sash horn can carry a woodgrain foiled end cap that run seamlessly with the shape of the horn. The sash horn utilises mechanical joints rather than welded to allow the horn to be a continuous part of the sash giving the window a more authentic overall look. The new horn is available with the inclusion of a slim midrail only. On windows with a standard midrail, the run-through horn will look slightly different.
Preview sash horn design on windows with a standard midrail.
Tilt Knobs
Used to open and tilt the sashes for easy cleaning of the outside frame and glass from inside your home. The tilt knobs are available in two styles. Please view styles and finishes in the hardware section.
Astragal Bars
Include a bar layout on your new sash windows for added character. Astragal bars are fixed onto the surface of the glass and are accompanied by back-to-back spacer bars inside the double-glazed unit to give the appearance of separate panes.
Slim Midrail
The styling details of our sash windows are now more rooted in history than ever before. The new 37mm slim midrail will reaffirm the Legacy’s position as one of the most authentic sash windows on the market ideal for period properties or homes in conservation areas. Please note the slim midrail is available with the inclusion of run-through sash horns only and on windows with a minimum width of 375mm. Limitations on colourways may apply, please ask upon enquiry.
Sash Lock and Keep
Our locking system holds the sash window shut by fastening the mid-rails together. The locking system is available in two styles. Please view styles and finishes in the hardware section.
Trickle Vent
We offer two different vent solutions to comply with Document F of the building regulations. Both vents are colour-matched to match the aesthetics of our Legacy sash windows. The modular vent will allow for 2000EA per module and the Link Vent comes in two different sizes: 2500EA and 5000EA.
Deep Bottom Rail
Choose a deep bottom rail if you want your box sash windows to look as close to the original timber sash version as possible. The fully mechanical deep bottom rail convincingly mimics the bottom sash of timber windows from the Victorian era and looks great with run-through sash horns.
Weatherbar
The sash window boasts an optional ovolo shaped weather bar, which is the latest of our heritage design features, developed to create an authentic sash window appearance.
Slide & Tilt Facility
Both the top and bottom sashes can slide up and down for ventilation. Our Legacy sash windows feature an easy clean tilt facility allowing you to clean the external side of your windows from inside the home. Please note, on windows with a woodgrain finish external and smooth finish internal we are not able to offer top sash tilt facility
Integrated Cill
The integrated cill on sash windows combines aesthetic charm with functional benefits. It seamlessly blends with the bottom section of the window, enhancing its visual appeal while also providing protection against moisture damage by deflecting water away from the frame. We offer two different sizes; 150mm for windows installed on an existing cill and 210mm for installations where a projecting cill is required.
Colour Options
Smooth White
Smooth White
External White Grain
White Grain
External White Grain
Smooth White
Cream Grain
Cream Grain
Cream Grain
Smooth White
Grey Grain
Grey Grain
Internal Grey Grain
White Grain
Grey Grain
Smooth White
Agate Grey
Agate Grey*
Internal Agate Grey
White Grain*
Agate Grey
Smooth White*
Chartwell Green
Chartwell Green*
Chartwell Green
Smooth White*
Black Ash
Black Ash*
Black Ash
Smooth White*
External Irish Oak
Smooth White*
External Golden Oak
Smooth White*
External Rosewood
Smooth White*
Basalt Grey
RAL 7012
Pebble
RAL 7032
Beige
RAL 1001
Stone
RAL 7030
Oyster White
RAL 1013
Papyrus
RALA 9018
Pale Green
RAL 6021
Reed Green
RAL 6013
Hardware Options
The Legacy uPVC sliding sash windows we supply are equipped with a whole range of different hardware. The hardware we use has been carefully selected based on aesthetics, robustness, and ease of use. Our heritage hardware maintains the authentic period charm that makes these windows a great timber replica. Options also include travel restrictors. Finishes may vary by hardware.
Classic Knob
Heritage Knob
Classic Cam Lock
Heritage Lock
Bow handle
Locking Keep
Lift Hook
Pole Eye
Magnetic Travel Restrictors
Lockable Restrictors
White
Satin Silver
Brushed Chrome
Gold
Chrome
Bronze
Black
Antique Black
White
Satin Silver
Brushed Chrome
Gold
Chrome
Bronze
Black
Antique Black
Black
White
Brushed Chrome
Gold
Chrome
Antique Black
Satin Silver
Bronze
White
Brushed Chrome
Satin Silver
Gold
Chrome
Bronze
Black
Antique Black
White
Satin Silver
Brushed Chrome
Gold
Chrome
Bronze
Black
Antique Black
White
Satin Silver
Brushed Chrome
Gold
Chrome
Bronze
Black
Antique Black
Bronze
White
Satin Silver
Brushed Chrome
Gold
Chrome
Black
Antique Black
White
Satin Silver
Brushed Chrome
Gold
Chrome
Bronze
Black
Antique Black
White
Brushed Chrome
Chrome
Matt Black
Antique Black
Black
Bronze
Brushed Chrome
Chrome
Gold
Satin Silver
White
Looking for a new supplier of Sliding Sash Windows?
Quote & Order Online 24/7
Creative Marketing Resources
Exclusive Trade Prices
Glazing Options
Double Glazing
Our sash windows come with efficient 24mm double glazing as standard. Double glazing consists of two panes of glass separated by a spacer filled with insulating argon gas. This composition significantly reduces heat transfer, keeping interiors warmer in winter and cooler in summer. Double glazing on uPVC sash windows offers a winning combination of energy efficiency, comfort, security, and aesthetic appeal, making it an excellent choice for both new builds and existing properties.
All our sash windows feature Low E glass, which helps to control the transfer of heat through the glass, keeping interiors cooler in summer and warmer in winter.
Spacer Bars
Spacer bars are positioned around the perimeter of the glass panes to provide structural support to the unit and to ensure that the space between the glass panes
remains consistent. We offer 3 different bar finishes.
Preview finishes
Laminated Glass
You have the option to upgrade your traditional sash windows with laminated glass for enhanced safety while preserving the aesthetic charm of classic Victorian window features. One of the most notable advantages of laminated glass is its safety features. In the event of breakage, the interlayer holds the glass fragments together, preventing them from shattering into sharp pieces.
Obscure Glass
Perfect for privacy-focused areas like bathrooms, we offer obscure glass options – the most popular being Satin glass, also known as frosted glass. It features a smooth, matt finish that lets in natural light while blocking the view from outside.
Obscure Glass Patterns
Satin (Level 5)
Stipple (Level 4)
Westminster (Level 2)
Bark (Level 5)
Contour (Level 3)
Leaf (Level 3)
Venetian Integral Blinds
Venetian integral blinds offer a blend of style and practicality for sash windows. Integrated seamlessly within the double-glazed unit of the window, these blinds provide numerous benefits for homeowners seeking privacy, light control, and energy efficiency. We offer 3 different blind colours for 24mm double glazed units.
| Name | Solar Reflection | Light Reflection | Solar Absorbtion | |
|---|---|---|---|---|
S102 White | Solar Reflection: 70% | Light Reflection: 78% | Solar Absorbtion: 30% | |
S149 Cream | Solar Reflection: 68% | Light Reflection: 75% | Solar Absorbtion: 32% | |
S157 Silver | Solar Reflection: 43% | Light Reflection: 44% | Solar Absorbtion: 57% |
| Performance | Value |
|---|---|
| Best U-Value (Double Glazing) | 1.2 W/m²K |
| Best Energy Rating | A |
| Air Tightness (Pa) | Class 4 |
| Water Tightness (Pa) | Class 6A |
| Wind Load (Pa) | Class 3A |
| PAS 24 Security Upgrade | Yes |
| Min Sizes | W: 375mm | H: 800mm |
| Max Sizes | W: 1500mm | H: 3000mm |
Weatherproofing
Our Legacy uPVC sash windows are built to last and to resist the ever-changing conditions the British weather throws at them, all without losing their immaculate appearance. Our sash windows have successfully been tested against wind speeds of up to 120mph to achieve a 1200 rating, while for water tightness it withstood being sprayed with eight litres of water per minute for 40 minutes with zero leakage, earning it a higher-level Class 6A classification.
Thermal Efficiency
The frames and sashes are multi chambered and use the power of specialised argon gas to help trap heat between the panes. Our modern double glazed sash windows can make an excellent timber replacement as they achieve an energy rating of ‘A’ and u-value of 1.2 W/m2K. A sash window with a U-value of 1.2 demonstrates excellent thermal performance, indicating minimal heat loss and efficient insulation properties.
Security
Our double-glazed sash windows deliver the most advanced levels of security without adding complex operations. They are practical and come with all the safety features a homeowner would need. Customers have the option to take advantage of a comprehensive high security PAS 24 package, which meets the latest requirements for new builds. As part of the security upgrade, our sash windows will be equipped with reinforced tilt latched, top security blocks as well as 2 x high security locks and keeps.
Manufacturing Guarantee
With all Quickslide uPVC sash windows, there is a manufacturing guarantee of up to ten years as standard. You can market our uPVC sash windows by providing reassurance to the homeowner. By becoming a trade partner of Quickslide, you can install products that offer complete peace of mind and protected investment. You can provide the best.
This guarantee serves as a testament to our confidence in the durability, reliability, and long-term performance of our sash windows.
Security Options
PAS24 Upgrade
Reinforced Metal Tilt Arms
Top Sash Security Bolts
2x High Security Locks & Keeps
Reinforced Metal Tilt Latches
Conservation & Planning
Conservation Checklist
It’s important you understand specific regulations set forth by your local conservation authority.
Choose sash windows features such as astragal bars and a realistic timber effect that are historically accurate.
Be sure to maintain the original proportions of the windows. We offer two different bottom and midrail sizes.
Provide comprehensive documentation incl. section drawings, specifications, and wood effect swatches.
That’s us! Our knowledge and skills can help ensure that the project meets conservation standards. Quickslide’s sash windows were recently approved for installation in a Grade II listed property in West Yorkshire; read the full case study to discover how we made it happen.
In House Manufactured uPVC Sash Windows
Our Legacy uPVC sash windows are one of our most popular home renovations. We manufacture these windows in house here in Brighouse, West Yorkshire, Bournemouth, Alresford, Fareham, Edinburgh, Eastleigh, Ashford, Crodyon, Dundee, Birmingham, Bristol, Darlington, Brockenhurst, Dorchester, Dartford Exmouth, Blackburn and surrounding areas ensuring the absolute best in quality and performance.
Our massive area coverage allows us to work with trade partners across the country, and we can manufacture all sorts of styles, including Victorian, Georgian, Edwardian, Flag and Arched windows. You won’t find an uPVC sash windows system that offers greater authenticity than our Legacy model.
Modern Window Materials
Quickslide’s Legacy sash windows are made using only the best materials from our partnering uPVC extruder, Spectus. Advanced materials matched with our expert fabrication have enabled us to achieve an evolutionary design for our double glazed sash windows that certainly doesn’t disappoint in aesthetics, performance or security.
One of the key advantages of our uPVC sash windows is that they can last much longer than their timber counterparts with much lower maintenance requirements. uPVC can resist warping and won’t splinter, crack, or fade from harsh British weather conditions.
uPVC Sash Window Designs
Our elite uPVC sash windows are designed to be the perfect timber replica. Their composition makes them a perfect solution for conservation areas and other heritage buildings. They slide vertically and can also tilt within the frame, providing an easy maintenance solution for homeowners in your coverage area.
Additional design features, such as run through sash horns and a deep bottom rail, are available to add an authentic touch of class to the uPVC sash windows. Plus, we are pleased to offer 90 degree mechanical joints for a sash window replacement that doesn’t compromise on the original aesthetic.
With our optional authenticity features, these windows can look as close to timber as possible while granting much higher energy efficiency, security, and lower maintenance requirements. As a brand new feature, we’ll also soon offer a slim mid rail as an option for our uPVC sash windows.
Cost Effective Sash Windows
Compared to timber or aluminium windows, uPVC sash windows are often more affordable, making them a cost-effective option for homeowners seeking high-quality windows on a budget. Additionally, Quickslide’s offering is fully customisable which means that you can build a sash window that fits within your budget. With the option to design your own, you can choose your own sash window features until you reach a suitable design that won’t break the bank. Design your own sash window to get an instant price or become a trade partner to gain access to our trade price lists.
UK Compliance and Regulations
As a reputable supplier of premium sash windows deserved by the British public, we look at the value of quality as an entity that requires constant attention and maintenance. Paramount quality and compliance continue to enhance our reputation of offering the best without compromising on the ever-important sash window aesthetics.
Our windows are tested annually for compliance to enhanced security standard PAS 24 as well as BS 6375 for weather performance. The manufacturing processes are also externally verified by ER Certification, to ensure the fabricator meets the required testing and manufacturing criteria to satisfy product standards and certification schemes.
Supply & Installation Near You
Looking for sash windows near me? Our uPVC vertical sliders are available for supply & installation in Maidstone, Reading, Edinburgh, Kingston upon Thames, Shrewsbury, Leeds, Birmingham, London, and nearby areas. Built to last and look great, our sliding sashes are installed by a network of stockists and installers. Need help finding a local installer? Try our locator tool – it’s the quickest way to find your nearest installer and book a consultation.
Downloads
FAQs
View All FAQsWhat Are uPVC Sash Windows?
uPVC sash windows, also known as vertical sliders or vertical sliding windows, are a traditional style of window still proving to be popular today. They feature two sashes that slide up and down, as well as tilt inward for easy cleaning. Quickslide’s Legacy model is available in Victorian, Edwardian, and Georgian styles – including curved variations – and is manufactured to bespoke dimensions at the Quickslide factory in Brighouse, West Yorkshire. The slim mid-rail option replicates the authentic look of original timber box sash windows.
Can I Replace Existing Timber Windows In a Conservation Area With uPVC Sash Windows?
How Do You Install uPVC Sash Windows?
Quickslide provides detailed step-by-step installation guides for the Legacy uPVC sliding sash window, available to download from the technical resources section of the website. Installation involves removing the existing frame, preparing and squaring the reveal, fitting the uPVC subframe, inserting the sash units, and sealing and finishing. For homeowners, Quickslide recommends using a registered installer to ensure a professional fit and to preserve the 10-year manufacturer guarantee.
How Much Do uPVC Sash Windows Cost?
The cost of uPVC sash windows varies depending on size, style, glazing specification, and colour. Quickslide’s Legacy uPVC sliding sash windows start from £396 including VAT at recommended retail price, making them a cost-effective alternative to timber sash windows. Every window is manufactured to measure, so an accurate price requires individual specification. Use Quickslide’s online window designer or contact the sales team for a personalised quote.
Are Sash Windows Energy Efficient?
Yes – Quickslide Legacy uPVC sash windows achieve an A energy rating under the PLC Schema – Window Energy Rating scheme. The double-glazed units are argon gas-filled and can achieve an impressively low U-value of 1.2 W/m²K with the right specification, significantly reducing heat loss compared to single-glazed or older double-glazed windows.
How Secure Are Sash Windows?
Yes – modern uPVC sash windows are secure. Quickslide Legacy sash windows can be upgraded to meet PAS 24 security standards (required for many new-builds), giving you enhanced protection against forced entry. This includes reinforced tilt latches, top security blocks, and two high-security locks with keeps as standard within the upgrade. Despite the advanced protection, the system remains simple to use, offering strong, reliable security without complicated operation.
What Areas Can You Cover?
Quickslide delivers uPVC sash windows across the United Kingdom, including to Birmingham, Bristol, Canterbury, Dundee, Eastleigh, Fareham, Glasgow, London, Manchester, Northampton, Southampton, Winchester, Wolverhampton, York, and many further locations. All windows are delivered directly from the Quickslide factory in Brighouse, West Yorkshire, using the company’s own fleet. Full delivery area details are available on the Quickslide delivery page.
How Do I Fit The Bottom Sash On uPVC Sliding Sash Windows?
Our video on how to fit the bottom sash on uPVC sliding sash windows can provide a step-by-step guide. For further help, contact a Quickslide professional via our contact form.
Can You Put Sash Windows In Any House?
Yes, uPVC sliding sash windows can be installed in most UK homes, from period Victorian and Edwardian properties to modern new-build developments. Quickslide’s Legacy windows are available in heritage and contemporary styles with a wide choice of colours and foils. While planning permission is usually required, we’ve seen plenty of success getting our windows approved to replace timber frames in both listed buildings and conservation areas, and we’re happy to provide support for your application. Just speak to our team!
Do I Need Planning Permission To Replace Sash Windows?
In most UK homes, you won’t need planning permission to replace sash windows if the new ones match the style and material of the existing windows. But if your home is listed or in a conservation area, you will probably need permission. It’s always a good idea to check with your local council just to be sure.
How Long Do uPVC Sash Windows Last?
Quality uPVC sash windows can last 20 to 35 years with minimal maintenance. Quickslide Legacy windows are covered by a 10-year manufacturer guarantee. The expected lifespan of well-maintained uPVC is typically longer than timber sash windows, which can require regular repainting and can be susceptible to rot. Quickslide’s in-house manufacturing work hard to make sure our windows are produced at a consistently high quality, keeping our uPVC sash windows operating smoothly for decades.
How Do You Maintain uPVC Sash Windows?
uPVC sash windows require very little maintenance compared to timber alternatives. Clean the frames with warm soapy water every six months – don’t use abrasive cleaners or solvent-based products as these can damage the uPVC surface. We’d recommend operating the windows at least once every three months, and you can lubricate the mechanisms & tilt arms once every 6 months to keep everything working smoothly. Want more detail? Contact our team to request our Operation & Maintenance Manual. and replace draught seals if air infiltration is noticed around the sashes.
Quickslide Trade Stockist Programme
Get access to our online trade price lists, marketing support, order forms and much more by registering as a Trade Stockist today!
Register Now
Find an Installer
Find your nearest installer from our network of stockists. Enter your postcode to get started!
Find an Installer