uPVC Sliding Sash Windows | Sash Window
Close-up of standard mitre welds on uPVC window corners.

Corner Joints

Standard Mitre Welds

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.

Timber Looking Mechanical Joints

The fully mechanical joints take authenticity to another level because the 45° uPVC welds on the frame and sash are replaced with 90° mechanical joints as found on traditional timber windows.

Close-up view of a window sash horn featuring seamless integration and mechanical joints.

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 window sashes for cleaning, available in two styles.

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 on new sash windows, enhancing character with simulated individual panes.

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.

Close-up of a 37mm slim midrail sash window

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 436mm.

Close-up of a sash lock and keep for securing windows, available in two styles with various finishes.

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.

Colour-matched vents for Legacy sash windows

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.

Mechanical deep bottom rail mimicking Victorian timber sashes

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.

Close-up of a sash window with an ovolo weather bar for authentic heritage style

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.

Quickslide window slide & tilt facility

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

Close-up of integrated cill on sash window.

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

Our uPVC sash windows are available in a wide range of colours, including stunning, authentic woodgrains. Whatever age of property they are to be installed in, we have a colour to suit. We even offer a bespoke colour bonding service, whereby we can produce windows in almost any conceivable hue. Additionally, we can provide dual colourways, granting a unique colour to the internal and external sides. Our extensive colours and woodgrain foil options are designed for exterior applications. Additionally, the wool piles that we incorporate are colour matched so that you can receive a seamless colour aesthetic. *Longer lead time applies.

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External
Internal

Smooth White

Smooth White

Colour Heritage White External
Internal

White Grain

White Grain

Colour Heritage White External
Internal

White Grain

Smooth White

External
Internal

Cream Grain

Cream Grain

External
Internal

Cream Grain

Smooth White

External
Internal

Grey Grain

Grey Grain

External
Colour Heritage White Internal

Grey Grain

White Grain

External
Internal

Grey Grain

Smooth White

External
Internal

Agate Grey

Agate Grey*

External
Colour Heritage White Internal

Agate Grey

White Grain*

External
Internal

Agate Grey

Smooth White*

External
Internal

Chartwell Green

Chartwell Green*

External
Internal

Chartwell Green

Smooth White*

External
Internal

Black Ash

Black Ash*

External
Internal

Black Ash

Smooth White*

Colour Irish Oak External
Internal

Irish Oak

Smooth White*

Colour Golden Oak External
Internal

Golden Oak

Smooth White*

Colour Rosewood External
Internal

Rosewood

Smooth White*

Coloured Flag Sash Windows
Quickslide sliding sash window hardware feature

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.

Bottom Sash Knob - Classic - Antique Black

Classic Knob

Bottom Sash Knob - Heritage - Antique Black

Heritage Knob

Classic - Cam Lock - Antique Black - Front

Classic Cam Lock

Heritage - Cam Lock - Antique Black - Front

Heritage Lock

Bow Handle - Front - Antique Black

Bow handle

Classsic Keep - Front - Antique Black

Locking Keep

Sash Pull - Antique Black - Front

Lift Hook

Ring Pull - Inline - Antique Black - Side

Pole Eye

Sidefix Extended Chrome

Travel Restrictors

Bottom Sash Knob - Classic - White

White

Bottom Sash Knob - Classic - Satin Silver

Satin Silver

Bottom Sash Knob - Classic - Brushed Chrome

Brushed Chrome

Bottom Sash Knob - Classic - Hardex Gold

Gold

Bottom Sash Knob - Classic - Hardex Chrome

Chrome

Bottom Sash Knob - Classic - Hardex Bronze

Bronze

Bottom Sash Knob - Classic - Black

Black

Bottom Sash Knob - Classic - Antique Black

Antique Black

Bottom Sash Knob - Heritage - White

White

Bottom Sash Knob - Heritage - Satin Silver

Satin Silver

Bottom Sash Knob - Heritage - Brushed Chrome

Brushed Chrome

Bottom Sash Knob - Heritage - Hardex Gold

Gold

Bottom Sash Knob - Heritage - Hardex Chroome

Chrome

Bottom Sash Knob - Heritage - Hardex Bronze

Bronze

Bottom Sash Knob - Heritage - Black

Black

Bottom Sash Knob - Heritage - Antique Black

Antique Black

Classic - Cam Lock -Black - Front

Black

Classic - Cam Lock - White - Front

White

Classic - Cam Lock - Brushed Chrome - Front

Brushed Chrome

Classic - Cam Lock - Hardex Gold - Front

Gold

Classic - Cam Lock - Hardex Chrome - Front

Chrome

Classic - Cam Lock - Antique Black - Front

Antique Black

Standard - Cam Lock - Satin Silver - Angled

Satin Silver

Standard - Cam Lock - Hardex Bronze- Angled copy

Bronze

Heritage - Cam Lock - White - Front

White

Heritage - Cam Lock - Brushed Chrome - Front

Brushed Chrome

Heritage - Cam Lock - Satin Silver - Front

Satin Silver

Heritage - Cam Lock - Hardex Gold - Front

Gold

Heritage - Cam Lock - Hardex Chrome - Front

Chrome

Heritage - Cam Lock - Hardex Bronze - Front

Bronze

Heritage - Cam Lock - Black - Front

Black

Heritage - Cam Lock - Antique Black - Front

Antique Black

Bow Handle - Front - White

White

Bow Handle - Front - Satin Silver

Satin Silver

Bow Handle - Front - Brushed Chrome

Brushed Chrome

Bow Handle - Front - Hardex Gold

Gold

Bow Handle - Front - Hardex Chrome

Chrome

Bow Handle - Front - Hardex Bronze

Bronze

Bow Handle - Front - Black

Black

Bow Handle - Front - Antique Black

Antique Black

Classsic Keep - Front - White

White

Classic Keep - Front - Satin Silver

Satin Silver

Classsic Keep - Front - Brushed Chrome

Brushed Chrome

Classsic Keep - Front - Hardex Gold

Gold

Classsic Keep - Front - Hardex Chrome

Chrome

Classsic Keep - Front - Hardex Bronze

Bronze

Classsic Keep - Front - Black

Black

Classsic Keep - Front - Antique Black

Antique Black

Bronze-Sash-Pull - Offset - Front

Bronze

Sash Pull - White - Front

White

Sash Pull - Satin Silver - Front

Satin Silver

Sash Pull - Brushed Chrome - Front

Brushed Chrome

Sash Pull - Hardex Gold - Back

Gold

Sash Pull - Hardex Chrome - Front

Chrome

Sash Pull - Black - Front

Black

Sash Pull - Antique Black - Front

Antique Black

Ring Pull - Inline - White - Side

White

Ring Pull - Inline - Satin Silver - Side

Satin Silver

Ring Pull - Inline - Brushed Chrome - Side

Brushed Chrome

Ring Pull - Inline - Hardex Gold - Side

Gold

Ring Pull - Inline - Hardex Chrome - Side

Chrome

Ring Pull - Inline - Hardex Bronze - Side

Bronze

Ring Pull - Inline - Black - Side

Black

Ring Pull - Inline - Antique Black - Side

Antique Black

Sidefix Extended White

White

Sidefix Extended Brushed Chrome

Brushed Chrome

Sidefix Extended Gold

Gold

Sidefix Extended Chrome

Chrome

Matt Black VS Restrictors

Matt Black

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

Satin (Level 5)

Satin (Level 5)

Stipple (Level 4)

Stipple (Level 4)

Westminster (Level 2)

Westminster (Level 2)

Bark (Level 5)

Bark (Level 5)

Contour (Level 3)

Contour (Level 3)

Leaf (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.

View Colour Options
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: 2400mm

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

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. They have the option to take advantage of a comprehensive high security PAS 24 package, which meets the latest requirements for new builds.

PAS24 Upgrade

Durable tilt latches designed for enhanced security and easy operation.

Reinforced Tilt Latches

Sturdy security bolts for top sashes, ensuring added safety and peace of mind.

Top Sash Security Bolts

Robust security keep designed to enhance window safety and stability.

2x High Security Locking Keeps

Secure locks designed for maximum protection and peace of mind.

2x High Security Locks

Complete Guide to Sliding Sash Windows

Conservation & Planning

We’re often faced with projects that require special features to fit in with the unique character of a conservation area. In the past, many planners used to refuse applications to replace timber sashes with a uPVC alternative. However, the Legacy sash window has been designed to recreate tradition, which has led to an increasing number of approvals granted.

Conservation Checklist

Research Local Guidelines

It’s important you understand specific regulations set forth by your local conservation authority.

Historical Accuracy

Choose sash windows features such as astragal bars and a realistic timber effect that are historically accurate.

Dimensional Accuracy

Be sure to maintain the original proportions of the windows. We offer two different bottom and midrail sizes.

Documentation

Provide comprehensive documentation incl. section drawings, specifications, and wood effect swatches.

Professional Expertise

That’s us! Our knowledge and skills can help ensure that the project meets conservation standards.

In House Manufactured uPVC Sash Windows

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, and Edwardian. You won’t find an uPVC sash windows system that offers greater authenticity than our Legacy model.

Quickslide's Legacy sash window made with premium modern materials

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 secondary 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.

Timber-look uPVC sash windows with authentic features for heritage buildings

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.

Affordable, customisable uPVC sash windows designed to fit any budget.

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.

Premium sash windows ensuring top quality and security.

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.

Downloads

Take a look through our downloadable brochures, data sheets and technical specs on the Quickslide website. We provide our registered installers with all the marketing collateral they need to market and install our Legacy uPVC sash windows effectively.

Can I replace existing timber windows in a conservation area with uPVC sash windows?

If you are looking for a sash window replacement that maintains that authentic look while improving thermal performance, choose Quickslide! You can install our products in a conservation area. However, this works on a project by project basis as each area is different. 

We can advise on enquiry as to the customisation options that would provide the greatest chance of approval. Our team are here to help!

How do you install uPVC sash windows?

We always aim to make life easier for trade partners and homeowners alike, so we’ve put all our handy installation guides in one place on our website! For our uPVC sash windows, check out this article for a detailed, step-by-step guide. If you’ve still got questions, get in touch with our team, and they’ll be happy to advise wherever possible.

If you’re a homeowner, we recommend finding your local installer to ensure you receive a professional fit for your sash window replacement.

How much do uPVC sash windows cost?

uPVC sash windows vary in cost because of the high levels of personalisation available. We offer competitive pricing for our uPVC sash windows. It would be difficult to say an exact price, as it depends on the dimensions, style and accessories that you choose for your project. You can use our online window designer or get in touch with our team to get a price.

What 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. uPVC sash windows feature two sashes that slide up and down, as well as tilt and slide. Our Legacy model offers nothing but the highest quality, as well as meeting our high standards for aesthetics, performance, and security.

There are many aesthetics that fall under the “sash” style. These include Victorian, Edwardian, and Georgian. Quickslide can provide each of these styles and can even provide curved variations, which you can find here.

Are Sash Windows Energy Efficient?

Quickslide double glazing is filled with argon gas to provide optimal thermal efficiency. Homes can stay warm and stylish when you choose Quickslide.

How Secure are Sash Windows?

Quickslides come with modern locking mechanisms and are made with highly durable materials that can resist warping and sudden blows. We also offer a PAS 24 upgrade package for those serious about security.

Double glazing is more robust than singular glazed panes due to the thicker doubled up panes, making them harder to break through while also being more energy efficient.

What Areas Can You Cover?

We cover a broad selection of areas across the UK for all of our products, including Alresford, Birmingham, Bristol, Canterbury, Dundee, Eastleigh, Fareham, Glasgow, London, Manchester, Northampton, Southampton, Winchester, Wolverhampton, York, and many more. To see more of the areas we cover, please visit our FAQ 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.

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Happy Customers

I have used Quickslide a few times for their sliding sash windows. The service from the staff is quick and professional, they are always there to give advice and offer help with any query. The quality of the windows is excellent. They are a pleasure to install and have not had any problems with them since. They are easy to operate and keep the rooms warm and draught free in the winter months. All in all, I would not hesitate to recommend Quickslide and their products, one of, if not the best company I have dealt with.

Phil Wooller

Been using Quickslide for a few years now. Really happy with their product and customer service. Staff are always friendly and willing to help. An all round really nice company to deal with.

Swift Windows

Our customers, particularly in the traditional buildings around York, mainly request the 'Legacy' Sliding Sash windows. These windows look fabulous; so authentic that many people are shocked to discover they are not made of wood. The windows are a great advert and more often than not, having installed Quickslide 'Legacy' windows in a property, the neighbours will approach us for quotes for their own houses.

Juliet Waters

Our experience from first encounter at the Quickslide Sales office in Brighouse to the completion of 14 fantastic new sash windows, was absolutely first class. The company was a pleasure to work with throughout the process. Knowledgeable and extremely pleasant and capable staff at all points along the way.

Kevin Galloway

We ordered over 30 mainly sliding sash windows in 2 batches for a project. The quality of the windows is excellent and great value for money. The lead times for both orders were accurate. The communication prior to each delivery and from their own drivers were faultless.

Ken McLelland

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