Across the UK construction and home improvement sector, expectations keep moving forward. Homeowners want the character of traditional sash windows, but they also expect homes to fit into a modern, connected lifestyle. At the same time, trades are under pressure to deliver higher-spec products without adding complexity on site. That balance is exactly why more installers, builders and developers are showing strong interest in Quickslide’s Legacy Protect uPVC sash windows that work with Kubu®, with the launch planned for early 2026.
One of the UK’s leading uPVC sash window manufacturers, Quickslide combines modern performance with traditional styling - a position that has made it well placed to introduce sash windows that work with Kubu® without compromising on looks, installation methods or reliability.
Designed specifically with the trade in mind, Legacy Protect brings smart home security into the classic uPVC sliding sash window - without changing installation methods, adding labour, or introducing unfamiliar processes on site.
Meeting demand without changing the job
Smart home features are no longer an upgrade to be overlooked. Buyers increasingly expect advanced security, particularly on new-build and higher-end renovation projects. Traditionally, that’s meant extra wiring, specialist installers, or aftermarket solutions that can introduce delays and potential complications.
Legacy Protect takes a far simpler approach. The sash window leaves the factory prepared to work with Kubu®, while installing exactly like a standard sliding sash window. From the installer’s point of view, nothing changes: the same fitting process, the same tools, and the same time on site.
For trades planning upcoming projects, this means they will be able to meet rising homeowner expectations without altering established workflows or increasing installation complexity.
Clear separation between installation and technology
One of the key reasons Legacy Protect is generating interest among trades is the clear division of responsibility.
The window itself is supplied ready to work with Kubu®, but homeowners purchase and fit the Kubu Smart Security Sensors themselves. Once installed, the sensors connect to the Kubu app, allowing homeowners to check whether windows are open, closed or being tampered with.
For installers and builders, this is a major advantage. There’s no need to set up apps, pair devices or provide ongoing technical support. The smart element sits entirely with the homeowner and the Kubu platform, not the trade.
That separation helps reduce post-installation questions and lowers the chance of callouts for issues unrelated to the window installation itself.
Keeping traditional looks intact
Trades working on period homes, conservation areas or heritage-style developments are understandably cautious about visible smart technology. Any change that compromises the appearance of a sash window can quickly become a problem.
Legacy Protect avoids this by keeping all smart capability discreet, with the sensor housings fitted in the window profile. The window retains traditional proportions and detailing, with no obvious technology on display. Once fitted, it looks and operates like a classic uPVC sliding sash window.
This makes it far easier for trades to introduce smart-capable windows on projects where aesthetics is critical, without having to justify visual compromises to planners or homeowners.
A stronger selling point for projects
From a commercial perspective, Legacy Protect is set to offer trades a clear way to stand out. Being able to specify sash windows that work with Kubu® gives builders and developers a modern selling point that resonates with today’s buyers.
Homeowners benefit from real-time alerts and window status updates through the Kubu app, while trades benefit from offering a higher-spec feature without additional cost, labour or technical risk. For developers, this can help upgrade properties and add perceived value without complicating the build programme.
Built on proven experience
Legacy Protect isn’t a one-off experiment. Quickslide are dedicated to consistent improvement and innovation, whether that’s upskilling staff members, investing in new state of the art machinery, or product development.
Bringing a modern twist to uPVC sliding sash windows was a natural next step. When Legacy Protect launches in spring 2026, it’s expected to be the first uPVC sliding sash window in the UK designed to work with Kubu® as standard - giving early adopters a clear competitive advantage.
Designed around real-life use
Another reason trades are showing strong interest ahead of launch is how the technology fits into everyday living. Through the Kubu app, and with use of the Kubu Home Hub, homeowners can receive reminders to close windows when leaving the house, open them for ventilation, or react to changing conditions such as bad weather or high pollen levels.
For trades, this matters because it positions smart security as a practical lifestyle benefit rather than a novelty feature. It helps homeowners see ongoing value in the product, so it still feels like a good decision long after the windows are fitted.
A low-risk way to future-proof installations
Ultimately, Legacy Protect offers trades a rare combination: innovation without disruption. There’s no extra training required, no specialist fitting, and no change to established installation methods. Yet the finished product fits in perfectly with where the housing market is clearly heading.
As smart home expectations continue to grow, sash windows that work with Kubu® will provide a straightforward way for trades to future-proof projects while keeping installations simple and reliable. That balance - traditional design paired with modern innovation - explains why Legacy Protect is already attracting strong interest across the trade sector ahead of its launch.
