Why Shutters Are the Ultimate Architectural Upgrade
Some window dressings are simply added to a room, while others become a permanent, architectural part of your home. When
July 21, 2026
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Total Darkness When You Need It
Struggling to sleep because of street lights or early morning sun? Standard blackout blinds help, but light always sneaks in around the edges. Benthin block-out roller blinds are different. They come with side channels that seal the gaps, giving you proper darkness in any room.
At Perfect Blinds UK, we fit these blockout roller blinds with side channels for customers who need serious light control. Bedrooms, nurseries, home cinemas, night shift workers. Anywhere you need it properly dark, these blinds deliver.
The Benthin system uses a sleek cassette at the top and aluminium side channels that guide the fabric right to the edges of your window. Light cannot creep in from the sides like it does with regular roller blinds. You get genuine blackout performance, not just a darker room.
Why Choose Benthin Block-Out Blinds
True blackout performance The difference is in the side channels. They stop light from leaking in around the edges — where most blackout blinds fall short. This gives you near-total darkness, as close as you can get with a blind.
For best results, these blinds should be fitted outside the recess (face-fix). A well-plastered, even wall is important, as uneven surfaces can allow light to escape behind the channels.
Sleep better, naturally Whether it’s long summer evenings, early sunrises, or streetlights outside your window, these blinds create the darkness your body needs for proper rest.
Ideal for shift workers Sleeping during the day can be a challenge. With full blackout capability, you can create nighttime conditions whenever you need them.
Perfect for nurseries Help little ones nap more easily by creating a properly dark environment — no more battling daylight creeping through curtains.
Home cinema ready Enjoy films without glare or washed-out screens. These blinds darken the room completely, even in bright daylight.
Sleek, modern design The Benthin system features a clean cassette and slim side channels for a smart, contemporary finish — no bulky frames or unattractive fittings.
Things Worth Knowing
Flexible fitting options Benthin block-out blinds can be installed inside the window recess but only if it is perfectly square and straight, which many windows aren’t.
That’s why we usually recommend fitting them outside the recess (face-fix) on the wall above, for the best blackout result. We’ll advise on the most suitable option when we carry out your measurement.
Side channels need a flat surface For maximum blackout, the side channels must sit against a reasonably flat wall or window frame. If your window surrounds are uneven, we’ll highlight this during the survey and suggest the best solution.
Fabric choices to suit your space These blinds are available in a range of blackout fabrics and colours not just standard whites or creams. For this system, smoother and lighter blackout fabrics tend to work best, as they glide easily through the side channels while maintaining performance.
Do you still need curtains? In many cases, no. With true blackout performance, customers often choose to remove curtains altogether and opt for a cleaner, more modern look — with the added bonus of less dust and maintenance.
Child safety built in All our blinds comply with current UK safety standards. For maximum safety, the motorised option eliminates cords completely, making it ideal for homes with young children.
Low maintenance, long lasting Maintenance is simple — just a light dust or an occasional wipe with a damp cloth. The fabrics and side channels are designed for durability and everyday use.
Common Questions (FAQ)
Can light still get through around the edges of a Benthin Block-Out Roller?
The Benthin Block-Out Roller with side channels is designed to deliver true, near-total darkness. Unlike standard blackout blinds, this system uses integrated side channels fitted with discreet brush seals to block light from entering around the edges the most common source of light leakage. When installed correctly, this significantly reduces edge light and creates a much darker environment than a typical blackout roller blind. If complete darkness is essential for example, for light-sensitive sleepers, shift workers, or nurseries this system is the ideal solution. If you’re happy with a very dark room but don’t mind a slight glow around the edges, a standard blockout roller blind may be sufficient. However, the Benthin system is specifically designed for those who need the highest level of light control.
Are Benthin Blockout Roller Good at giving a thermal benefit?
The Benthin Block-Out Roller are not specifically designed as a thermal product. However, customer feedback shows they can help keep rooms cooler in the summer when fully closed. Because the system is fully enclosed with side channels, it reduces the amount of warm air and sunlight entering around the edges helping to maintain a more comfortable indoor temperature. That said, if thermal performance is your main priority, Cellular (honeycomb Blockout) blinds are the better option. Their unique structure is specifically designed to trap air and provide superior all year round insulation. With this particular blind in place, many customers find their rooms stay noticeably cooler, reducing the need for fans or air conditioning running on those warm days.
Will the Benthin Blockout Roller make my room completely dark during the day?
The Benthin Block-Out Roller will get you as close to complete darkness as possible typically around 98–100% light blocking, provided your recess or walls are straight and suitable for installation. In the right conditions, you genuinely won’t be able to tell whether it’s day or night. By comparison, Cellular (Perfect Fit) blinds achieve around 90% darkness. You may notice a slight glow around the edges, but the room will still feel very dark and comfortable. If your goal is true, pitch-black darkness for example, for shift work or extreme light sensitivity the Benthin system with side channels is well worth the investment. If you simply want a darker room for better sleep, most blackout blind systems will do the job. However, this solution is specifically designed for those who need the highest level of light control.
Are motorised Benthin Blockout Rollers worth the extra cost?
Motorised Benthin blockout roller blinds are often worth the extra cost, especially for larger or hard-to-reach windows. While some people see them as a gimmick, they offer real practical benefits. For example, if you’re older or have limited mobility, being able to control your blinds at the touch of a button makes a noticeable difference in day-to-day comfort. Manually operating large, heavy blinds can be surprisingly strenuous, whereas motorisation removes that effort entirely. They’re also inherently child-safe, as there are no dangling cords. In addition, you can automate them to open at sunrise and close at sunset, or control them remotely via a handset or smart home system (usually requiring an additional hub). Although they typically cost around £200 more per blind, including the remote and charger, the added convenience, safety, and modern functionality can make them a worthwhile investment.
Make Them Even Better
Motorisation. This is where Benthin block-out blinds really shine. The motorised version lets you raise and lower your blackout blinds with a remote control. No cords, no fuss. Just press a button and the room goes dark.
We fit quality motors that run smoothly and quietly. You will not be woken up by noisy mechanisms. The blind glides up and down without disturbing your sleep.
Smart home control. Add a smart hub and your Benthin blinds can connect to Amazon Alexa or Google Assistant. Tell your smart speaker to close the blinds and it happens. Set schedules so they close automatically at bedtime and open when your alarm goes off. It is genuinely useful, not just a gimmick.
Hard to reach windows. Got a window above your bed or somewhere awkward? Motorisation means you do not have to climb over furniture to operate your blinds. Control them from across the room or even from bed.
Whole house automation. If you are fitting blackout blinds in several rooms, motorisation lets you control them all from one app. Close every blind in the house with a single tap.
Want to see how Benthin block-out blinds could transform your sleep? Book a free home visit and we will show you samples, measure up, and explain exactly how the system works.
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windows. Simply fill in the form and we’ll be in touch shortly.
Ready to Transform Your Windows?
We’re here to help.
Our expert team is ready with advice, ideas, and solutions for your windows.
Simply fill in the form and we’ll be in touch shortly.