uPVC Vertical Sliding Sash Windows
Design & Order uPVC Sliding Sash Windows Online
From £326 Inc. VAT
If you are looking for uPVC sliding sash windows that are built around your exact requirements, you can design and order everything online with complete control. This is not a standard product where you are forced into fixed sizes or limited choices. Every window is made to order based on the selections you make.
From the moment you start your configuration, you decide how your window will look and perform. You choose the size, the colour finish, the hardware, the glazing specification and the performance level. This gives you a level of flexibility that traditional suppliers simply do not offer.
Choose Your uPVC Sliding Sash Window Range
Not every project requires the same level of specification, which is why our uPVC sliding sash windows are available in four clearly defined ranges. Each range is designed to offer a different balance of cost, flexibility and design detail, allowing you to choose a solution that fits your property and budget without unnecessary complexity.
Design & Order Online
Core Features
Double glazing, toughened safety glass and standard cills included as standard.
Simple Specification
A practical setup focused on the features most customers genuinely need.
Optional Upgrades
Georgian bars, sash horns and additional hardware can still be added where required.
Best For
Straightforward replacements, rental properties and budget-conscious projects.
Essential Range uPVC Sliding Sash Windows
The Essential range is designed to provide a reliable and cost-effective sash window solution while keeping the specification simple and practical. It includes all core features such as double glazing, toughened safety glass and standard cills, along with a clean white finish inside and out.
Rather than removing functionality, this range focuses on what most customers actually need, while still allowing optional upgrades like Georgian bars, sash horns and additional hardware where required.
More Finish Options
Upgrade to woodgrain or bespoke colour finishes for a more tailored final look.
Design Flexibility
Add sash horns, mechanical joints and a wider choice of visual detailing.
Hardware Choice
Select from a broader range of hardware styles and finishes to suit your property.
Best For
Homeowners who want more control over appearance without going fully premium.
Standard Range uPVC Sliding Sash Windows
The Standard range builds on the Essential specification by introducing greater flexibility in both design and performance. It allows you to upgrade to woodgrain or bespoke colour finishes, select from a wider range of hardware options and include additional design features such as sash horns and mechanical joints.
This range is ideal for homeowners who want more control over the final appearance of their windows without moving into a full premium specification, making it the most balanced and widely selected option.
Included Enhancements
Popular upgrades are brought into the standard specification for a stronger finish.
Less Configuration
A more complete solution without needing to build the specification step by step.
Refined Detailing
Includes popular features such as Georgian bars and a full range of hardware finishes.
Best For
Projects where more detail is expected while keeping the selection process simple.
Enhanced Range uPVC Sliding Sash Windows
The Enhanced range is designed to simplify the process of achieving a more refined window by including key features as part of the standard specification. Instead of adding multiple upgrades individually, this range brings together popular enhancements such as Georgian bars and a full range of hardware finishes.
It offers a more complete solution with less configuration required, making it well suited for projects where a higher level of detail is expected but ease of selection is still important.
Authentic Detailing
Created to replicate traditional timber sash windows as closely as possible.
Premium Construction
Mechanical joints, run-through sash horns and deep bottom rails are included.
Complete Finish
Woodgrain finishes, glazing options and a full hardware selection come as standard.
Best For
Period properties and conservation-style projects where authentic appearance matters.
Heritage Range uPVC Sliding Sash Windows
The Heritage range represents the highest level of specification, created to replicate traditional timber sash windows as closely as possible. It includes mechanical joints, run-through sash horns, deep bottom rails and woodgrain finishes as standard, along with a full selection of hardware and glazing options.
This range is ideal for period properties, conservation-style projects and homeowners who want an authentic appearance combined with modern performance.
Built to Replicate Timber, Engineered for Modern Living
Sliding sash windows are known for their traditional appearance, but older timber windows often come with maintenance issues, draughts and poor insulation. Our uPVC sliding sash windows are designed to retain the visual character of traditional sash windows while solving all of those problems.
The proportions, detailing and finishes are carefully engineered so that the windows look correct on the property. At the same time, the internal structure uses modern materials and construction methods to improve performance.
Key design elements include:
- Double glazing as standard across all ranges.
- Deep bottom rail for correct traditional proportions
- Slim midrail option for period accuracy
- Run-through sash horns for authentic appearance
- Mechanical joint options for timber-style finish
- Multi chamber profile for insulation
- Reinforced internal structure for strength
This combination allows you to maintain the character of your home while upgrading performance.
Compare Our uPVC Sliding Sash Window Ranges
| Feature |
Essential
(Entry Tier)
|
Standard
(Core Tier) MOST POPULAR
|
Enhanced
(Upsell Tier)
|
Heritage
(Premium Tier)
|
|---|---|---|---|---|
| External Colours | ✓ (White only) | ○ (Woodgrain +£60, Dual +£80, RAL +£200) | ○ (Woodgrain +£60, Dual +£80, RAL +£200) | ✓ (Woodgrain included, RAL optional +£200) |
| Internal Colours | ✓ (White only) | ○ (same pricing) | ○ (same pricing) | ✓ (matching woodgrain) |
| Georgian Bars | ○ | ○ | ✓ | ✓ |
| Sash Horns | ○ | ✓ | ○ | ✓ |
| Trickle Vents | ○ | ✓ | ✓ | ✓ |
| Cills | ✓ | ✓ | ✓ | ✓ |
| Double Glazing | ✓ | ✓ | ✓ | ✓ |
| Toughened Glass bottom sash | ✓ | ✓ | ✓ | ✓ |
| Hardware Colours | ✓ (White only) | ○ (full range) | ✓ (full range included) | ✓ (full range) |
| Pole Eyes | ○ | ○ | ○ | ✓ |
| D-Handles | ○ | ○ | ○ | ✓ |
| Weather Bar | ○ | ○ | ○ | ✓ |
| Mechanical Joints | ○ | ✓ | ✓ | ✓ (fully mechanical frame & sashes) |
| All Sizes | ✓ (no restriction) | ✓ | ✓ | ✓ |
| Slim Midrail | ✕ | ○ | ○ | ○ |
| Deep Bottom Rail | ✕ | ○ | ○ | ✓ |
| Laminated Glass | ✕ | ○ | ○ | ✓ |
| 1.2 U-Value Upgrade | ✕ | ○ | ○ | ✓ |
| Obscure Glass Options | ✓ | ✓ | ✓ | ✓ |
| Heritage Hardware | ✕ | ○ | ○ | ✓ |
| Travel Restrictors | ○ | ○ | ○ | ✓ |
Features
Features of Our uPVC Sliding
Sash Windows
Our uPVC sliding sash windows are designed to bring together the timeless appearance of traditional sash windows with the performance, security and practicality expected from a modern system. Every detail, from the clean finish of the corner joints to the balanced proportions created by slim midrails, a deep bottom rail and run-through sash horns, has been carefully considered to achieve an authentic look without compromising on durability.
As standard, all of our sash windows are supplied with high-performance double glazing, helping to improve insulation and comfort within the home. For added protection and peace of mind, you also have the option to upgrade to toughened or laminated glass, providing enhanced strength, safety and security where required.
Security can be further enhanced with an upgrade to PAS24 certification, offering increased resistance against forced entry and making the windows suitable for projects where higher security standards are needed.
Alongside the core structure, practical features such as secure sash locks, trickle vents for background ventilation, weather bars for improved protection, tilt knobs and a smooth tilt function for easy cleaning all contribute to everyday usability. Styling options such as astragal bars allow you to achieve a more traditional appearance where desired.
In terms of finishes, our uPVC sash windows are supplied in a smooth white finish as standard, giving a clean and classic look. For a more traditional timber-style appearance, you can upgrade to a range of woodgrain finishes, or choose bespoke RAL colour options to match your property both internally and externally.
Use the close-up images below to explore each feature in more detail and see how every element works together to create a sash window that is elegant, practical and built for long-term performance.
Colour Options
Full Colour Options for Complete Design Control
Your windows should match your property, not limit it. That is why we offer an extensive range of colour options, including both standard finishes and realistic woodgrain effects.
All our uPVC sliding sash windows are available in a smooth white finish as standard. If you are looking for a more traditional appearance, you can upgrade to our woodgrain colour options, which replicate the look of timber while maintaining modern performance.
In addition to this, you also have the option to choose dual colour finishes, allowing you to select different colours for the inside and outside of your windows. These are available across our woodgrain range as well as bespoke RAL colour options for a fully customised design.
Smooth white on both the internal and external sides is included at no extra cost. Woodgrain finishes, dual colour options and bespoke RAL colours are available as upgrades, with pricing clearly shown on our live sash windows online designer where you can directly place your order.
Smooth White
Hardware Options
All hardware options are available in a range of finishes, which you can view in the “Hardware Finishes” tab. The finishes are shown on the heritage lock for demonstration purposes, but the same finishes are available across other hardware options as well.
Our hardware range includes functional components such as lift hooks, sash knobs, pole eyes and locking systems, all designed to provide smooth operation, security and a consistent finish throughout your window.
Glass Options
Glazing Options for Performance and Privacy
Glazing is one of the most important aspects of your window, as it directly impacts insulation, safety, noise reduction and privacy. Each of our uPVC sliding sash windows is supplied with a 24mm double glazed unit as standard, which includes argon gas insulation, a warm edge spacer bar and Low E internal glass to maximise thermal efficiency. For enhanced safety, laminated glass is available, which holds together in the event of breakage rather than shattering into sharp fragments. We also offer a range of obscure glass options designed to provide privacy while still allowing natural light into your home, including Bark (Level 5), Satin (Level 5), Contour (Level 3), Stipple (Level 4), Leaf (Level 3) and Westminster (Level 2). For properties located in busier or noisier environments, acoustic glazing can also be specified to help reduce external sound and improve indoor comfort.
Locking and Security
The locking system secures the window by fastening the midrails together. This creates a tight seal while providing strong protection against forced entry.
For enhanced security, a PAS 24 upgrade is available. This includes upgraded locking components and additional security features such as top sash security blocks.
PAS24 Upgrade
Exceptional Thermal Efficiency
When you invest in new windows, performance is just as important as appearance. Our uPVC sliding sash windows are designed to improve thermal efficiency across your entire home, helping to reduce energy loss and improve comfort throughout the year.
The frame and sash construction use a multi chamber design that traps air within the structure. This acts as insulation and prevents heat from escaping through the window frame. Combined with high performance glazing, this creates a system that actively works to maintain indoor temperature.
Each window includes a 24mm double glazed unit with argon gas between the panes. This gas is denser than air and slows down heat transfer, keeping warmth inside your home. The addition of a warm edge spacer bar further improves insulation by reducing heat loss around the edges of the glass.
As a result, our windows achieve an A energy rating as standard with a U-value of 1.4 W/m²K. For customers looking for even higher performance, a thermal upgrade is available to reach 1.2 W/m²K.
This means:
- Reduced heat loss
- Lower energy bills
- Improved indoor comfort
- Less condensation