4.9/5 - 604 Reviews
Read Reviews
100% - 88 Reviews
Read Reviews
4.9 - 581 Reviews
Read Reviews Read ReviewsSpread the cost of your home improvement Interest Free Over 2 Or 3 Years*
Proven performance, trusted by hundreds of customers - the SleekSkin finish!
Premium Window Shutters for Style & Privacy
Transform your home with new windows, doors, shutters or a conservatory - pay nothing until 2027.
Kubu smart door security gives you a simple way to check your door without second guessing. Open the app and you can instantly see whether your door is locked, unlocked or open.
Kubu is built into compatible door hardware, rather than being added on afterwards. That means no visible sensors and no compromise on the appearance of your door.
Check your door instantly through the app without leaving your seat.
Confirm your door is locked once you are settled in.
Check status while travelling or when you are out.
See when your door has been opened or locked.
Useful for families, rentals and multi-occupancy homes.
Works with selected systems through simple smart integrations.
Sensors are hidden within the door hardware for a neat finish.
Kubu brings everyday reassurance to your main entrance, helping you stay in control without adding complexity. It is a practical addition for modern homes, whether you are inside, out or away.
Speak to Emerald about Kubu smart door security as part of your new door. Arrange a quote or book a home visit today.
Through the app, you can:
With Emerald, every installation is handled with care, so the system works reliably from the start. It is a straightforward way to remove doubt around your main entrance.
Welcome to our FAQ section on Kubu smart door security. We've compiled key questions to help you understand how it works and why it is a valuable addition to modern entrance doors.
Got a Question About Kubu? Contact us here!Kubu shows the live status of your door through the app, including whether it is locked or unlocked. This allows you to check quickly without needing to return to the door, which is especially useful at night or when leaving home.
SureShield is an optional feature that sends alerts if your door is opened, unlocked or experiences unusual force. You can activate it whenever you want extra awareness, such as overnight or while you are away.
Kubu includes an activity history that records when the door has been opened or locked. This can be helpful for households, shared homes or rental properties where visibility over access is important.
Yes. Kubu works as a standalone system through its app, so you can check status and receive updates without needing additional smart home technology installed.
Kubu is included with selected door configurations. It can also be discussed as part of your door choice, making it easy to include within your overall specification.
We pride ourselves on the hundreds of customer reviews that we have collected over our many years of trading. Why not read some of our testimonials yourself, and see how our customers have rated their experience with our service.
See All ReviewsEmerald windows were brilliant. The patio door was removed and replaced with a window. All work was carried out from bricking up the outside to plastering the inside. Great work...
We worried about choosing a window company. We looked at all the usual national firms but we preferred the feel of a smaller local family run business as the rep...
Very pleased with the whole process from Mark letting us see and touch the product in the showroom in Swindon (many don't!), to a transparent price breakdown, no "buy now...
Highly recommend Emerald Windows and Doors; new Front and back doors fitted yesterday. Cannot praise Mark the Fitter enough, courteous, friendly and very helpful. Top job with attention to detail...
Emerald windows have just installed a new composite front door to our property. We are very pleased with the product and the installers were polite, professional and have carried out...
If you would like to visit our showroom or would like us to visit you at your home, follow the link to complete a quick form. We will be in touch to arrange a time, date and location that suits you.
Get a free quote
We supply the leading brands of composite doors, each of which has their own distinctive styles and furniture options to choose from. Follow the link to build your own custom door and get a quote.
Door Designer
Why not read through some of our informative blogs, written in the aim of answering frequently asked questions on all things home improvement related.
See all newsApril 15, 2026
If you have been researching a conservatory warm roof, you have probably come across the term again and again. It is one of the most used phrases in the industry, and for good reason. A properly designed warm roof system...
Read more
March 31, 2026
Choosing between bi-folding doors and sliding doors can feel like a big decision. Both are a popular choice for modern homes, offering more natural light and a stronger link to your outdoor space. But the right choice depends on how...
Read more
March 30, 2026
Today’s modern, well-designed conservatory is much more than a room used only during the summer months. With thoughtful design ideas, it can become a comfortable extra living space that works throughout the year. From layout and furniture to roof options...
Read more
