Please note that Fire Rated Sliding Windows start from £7,000 + VAT onwards.

Our fire rated sliding window is a fire-resistant, electrically operated window certified to fire resistance class El30 (30 minutes fire rated). It is designed with an aluminium frame and features 18mm Pyrostop 30-20 glass for enhanced safety and reliability.
This versatile sliding window is available in both horizontal and vertical configurations. In the vertical model, the window can be engineered to open upwards and downwards, offering flexibility to suit various applications. Additionally, the design allows seamless integration into the wall, with the option to forgo glass in the fixed section if required.
Description: Fire-resistant, electrically operated window in aluminium.
Width: Maximum width horizontally sliding is 2600mm. Maximum width vertically sliding is 1140mm.
Height: Maximum height horizontally sliding is 1140mm. Maximum height vertically sliding is 2600mm.
Frame Thickness: 90mm
Construction: Motor, transmission and automatic locking are integrated within the frame.
Locking: Mechanical lock which automatically locks the window in the closed position.
Power Supply: 230 V AC transformer. Optional backup battery available.
Control System: S3 control system with soft start/stop, push-and-release buttons (press and release) and alarm closing.
Glass: 18mm Pyrostop 30-20, fire-resistance classification EL30.
Surface Coating: Satin anodised aluminium profiles. Wooden trim painted in any colour.
Protection Against Fire: Fire-resistance classification EL30.
Sound Level: The equivalent continuous A-weighted sound pressure level will not exceed 70db(A) on normal operating (25%).
Installation Environment: To be installed within internal environments only.
Certified By: SP Technical Research Institute of Sweden.
Quality Checked By: SP Technical Research Institute of Sweden.
From the point of an order being received and paid for, our lead times will range from 8-10 weeks as these Fire Rated Sliding Windows are bespoke and custom made to order.
Once your Fire Rated Sliding Window has been manufactured, we use independant couriers who will often deliver the same day or next. We will keep you informed once couriers have been scheduled and let you know when they plan to arrive.

Vertically Sliding Window that opens upwards.

Vertically Sliding Window that opens upwards, integrated into a wall.

Vertically Sliding Window that opens downwards, integrated into a wall.

Horizontally Sliding Window with fixed glass pane.

Horizontally Sliding Window, integrated into a wall.

The 18mm Pyrostop 30-20 is a premium fire-resistant glass certified to fire-resistance class EI30, ensuring 30 minutes of protection against flames, smoke, and heat. Its advanced intumescent interlayers expand under high temperatures, creating an opaque barrier that prevents heat transfer while maintaining the structural integrity of the glass.
This innovative design meets stringent European fire safety standards (EN 13501-2), making it an ideal choice for applications where visibility and fire safety are crucial. With excellent thermal insulation and optical clarity, Pyrostop 30-20 offers reliable performance for commercial and public spaces requiring dependable fire protection.

EI30 indicates that the window provides 30 minutes of fire resistance, maintaining both integrity (E) to prevent flames and smoke from passing through and insulation (I) to limit heat transfer to the non-fire side.
18 mm Pyrostop 30-20 is a fire-resistant glass made with advanced intumescent interlayers that expand during a fire to block heat and flames. It meets strict European safety standards and offers high thermal insulation and clarity.
Yes, fire-rated sliding windows are suitable for various commercial, public, and industrial buildings where fire safety regulations require compartmentalisation or enhanced protection. They can be customised to meet specific building requirements.
Fire-rated sliding windows are designed to maintain their fire-resistance properties when closed. Automatic operation may deactivate in a fire scenario to ensure the window remains sealed and effective.
Yes, the fire-rated sliding windows can be tailored in size, configuration (horizontal or vertical), and finish to suit your project needs. The fixed section can also be designed without glass for unique applications.
The aluminium frame is treated and engineered to work with the fire-resistant glass, ensuring the entire unit meets the EI30 classification for fire integrity and insulation.
Regular inspections and maintenance are essential to ensure the window operates smoothly and retains its fire-resistant properties. We recommend professional servicing at least annually.
Yes, Pyrostop 30-20 glass is designed to provide excellent thermal insulation in everyday use, helping to maintain energy efficiency while ensuring fire safety.
Check out our verified Google Reviews from our valued clients.
Trustindex verifies that the original source of the review is Google.
Not impressed to be honest…. Never turned up on first appointment, then when they did they were 2 hours late and had the wrong parts to repair my shop front.. wont be using again
Owner's reply
Hi, we’re sorry to read this review, however we’re unable to identify you as a customer of ours. We have checked our records and correspondence using the name on this review and cannot find any booking, appointment or communication relating to you or the circumstances described. We take customer service very seriously and would always want the opportunity to investigate a genuine complaint. If this review does relate to Contract Services Next Doors, please contact us directly with the site address and date of the appointment so that we can look into this. At present, we’re concerned that this review may have been left for the wrong company.Trustindex verifies that the original source of the review is Google.
Very efficient/professional job - filming all the glass in a dormitory. Many thanks. Croft Glass LtdTrustindex verifies that the original source of the review is Google.
Excellent service, professional and polite, Alice who I dealt with is most effecient and helpful all the way through the process. 100%Trustindex verifies that the original source of the review is Google.
Fantastic service from start to finish. The team was quick, efficient, and friendly, and they made the whole process very easy. The work was done to a high standard and without any hassle. Highly recommended!Trustindex verifies that the original source of the review is Google.
Found Next Doors Ltd through Google & they had excellent reviews so gave them a try, & they were excellent from start to finish. After sending them a few photo`s & short video of the door problem, Alice in the office gave me a quote with a minimum & maximum price including labour & travel, so we knew exactly how much the cost would be if the door needed any replacement parts. After a deposit was transferred, Next Doors Ltd emailed with a slot at 24 hours later for the works, & the engineer texted me in the morning with an ETA on site. The door had the necessary work done & the whole job was completed in 90 minutes. This is the second time we have used Next Doors Ltd, & now we have a properly functioning front door to our restaurant. We would definitely use Next Doors again, & also recommend them to anyone else, absolutely first class. Fino Restaurant Bognor Regis PO22 6AA.
Owner's reply
That’s very kind of you say Aldo, glad we could be of assistance it was a pleasure to have been able to help.
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