
Our Bi-Parting Medium Duty Serving Window is designed for both style and functionality. It features a four-pane configuration, with two fixed windows on either side and two central panes that slide apart in a smooth, bi-parting motion. Constructed from durable, thermally broken aluminium, this window enhances energy efficiency by reducing heat transfer while providing excellent insulation.
Designed to elevate your space with advanced features and sleek aesthetics is our Bi-Parting Medium Duty Serving Window. Engineered with precision, this window features double-glazed panels for superior insulation and noise reduction. It’s thermally broken construction enhances energy efficiency, keeping your space warm in wanter and cool in summer, thereby minimising energy costs.
Equipped with a built-in lock handle, security is seamlessly integrated into the design. The central opening provides a more usable and accessible serving area, making it a practical and stylish addition to any environment.
Available as just the window or with additional sections. These additional sections can be on any side of the window and be fully glazed or solid timber cores, covered over the top by acrylic panels or aluminium sheets.
We have standardised manufacturing and delivery times, expedited times are available at additional costs if our workshop workload allows. Please get in touch with us if you have a requirement for a dedicated deadline.
Standard White Serving Window: 4-6 Weeks
Powder Coated to Any RAL Colour: 6-8 Weeks
Our dedicated couriers can deliver the same or next day once booked. We advise having clear delivery instructions and someone on site to receive the window to minimise the chance of any issues.
We supply all of our horizontal sliding windows on a supply-only basis, however, if installation is required please do let us know for a tailored installation quote.
Thermally Broken
Offers an enhanced thermal performance with an internal insulating barrier between the inner and outer frame.
Double Glazed
With 6.4mm laminated glass separated by a 12mm spacer, our glass provides great insulation and also noise reduction.
Multiple Configurations
As well as our Bi-Parting option, you can also have a Single Sliding option, which still allows both panes to slide in either direction.
Security
An extra layer of security has been added with the built-in lock handle, providing a hassle-free process for security.
Adaptable
All sliding windows can come with additional panels on any side of the window. Please specify for more info.
Fully Customisable
Can be coloured any RAL colour or have additional handles, locks and even integrated blinds within the glass.

For our Medium Duty Bi-Parting Sliding Window, additional panels can be incorporated on either side to enhance both functionality and appearance. These panels are available as fully glazed options for a clean, modern look, or they can be made with solid timber cores for added strength. The timber panels can then be finished with acrylic sheets or aluminium sheets, providing a durable and customisable solution.

Each Bi-Parting Medium Duty Sliding Window that we manufacture is custom-made to your exact specifications. We produce detailed drawings that provide a clear visualisation of the window before production, ensuring a perfect fit and alignment with your requirements. This tailored approach guarantees that all measurements and design elements are precise, resulting in a smooth installation and seamless integration into your space.
Yes, all four sides of our Medium Duty serving window come with draft sealing.
Absoutely, the Bi-Parting Medium Duty Serving Window comes with drainage holes and can be applied to any external environment. It’s advised to let us know if the window is going to be externally placed as this will determine whether our fabricators drill the drainage holes or not.
Yes, the window has two slam locks in either sliding pane, meaning when it is pushed shut it automatically locks into place.
No, the glass cannot be changed. It comes 28mm thick as standard however, you can change what the makeup of the glass is i.e. laminated or toughened.
Unfortunately, these exact windows that we fabricate in-house are not Fire Rated. However, we do have a European supplier who offers Fire Rated Serving Windows – so should you find your specification requires this, please specify and let us know so we can quote accordingly.
Please see below the maximum and minimum measurements that are available with our Bi-Parting Medium Duty Serving Window:
Minimum Width: 700mm
Maximum Width: 2000mm
Maximum Height: 1600mm
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.Trustindex verifies that the original source of the review is Google.
First time of using this company and really pleased with the level of service and goods received. Will use again without doubt.
Owner's reply
Thanks for the lovely review Lisa, it was a pleasure working with youTrustindex verifies that the original source of the review is Google.
Greig, the engineer, arrived on time and promptly repaired the sliding door. He clearly explained his recommendations for future use and maintenance. He was professional, knowledgeable, and polite throughout. I would highly recommend Next Door Ltd to anyone.
Owner's reply
Thanks for the lovely review. It was a pleasure working with youTrustindex verifies that the original source of the review is Google.
Next Doors Ltd were amazing. They came on time to fix a damaged shop-front door. The repair has transformed the door and they did an additional repair to the lock to a very high standard. Very knowledgeable and professional service throughout. They cleaned up too which was a lovely touch. Nice team to deal with too. Highly recommend!Trustindex verifies that the original source of the review is Google.
Next Doors Ltd were fantastic. They were on-site to survey the damage to our shop-front door within the hour, and all the required new parts/repairs were fully complete within 48 hours of my initial call. Very professional service throughout. Nice team to deal with too. Highly recommend!
Owner's reply
Hi Darren, Thanks so much for your kind words, we're glad we were able to assist with your door issues so promptly!Trustindex verifies that the original source of the review is Google.
Had a fantastic experience purchasing our new security steel doors from Next Doors!! Right from the beginning to the end they were great. From the sales person(Emma) to the fitting team. If you require doors then this company are highly recommended.!!! I'll definitely be using them again!
Owner's reply
Hello Paul, Thank you very much for your kind words, we're glad you're pleased with our steel doors and installation. Will ensure to pass on the comments to the rest of the team! We look forward to working with you again soon.Trustindex verifies that the original source of the review is Google.
A very professional and efficient response all-round. From quickly and clearly quoting to effectively completing the job as outlined. I would definitely recommend Next Doors Ltd.
Owner's reply
Hi Mark, We're thrilled to hear you found our service professional and efficient, from the quoting process to completing the job. Your recommendation means a lot to us, and we're glas we could meet your expectations. If you ever need assistance again, please don't hesitate to reach out.Trustindex verifies that the original source of the review is Google.
A company that is a pleasure to do business with - they know what they are doing, do a good job and are pleasant and helpful as well.
Owner's reply
Thank you for your custom Robert, we look forward to working with you in the future should any of our services be needed!Trustindex verifies that the original source of the review is Google.
Excellent service would thoroughly recommend and use again in the future.
Owner's reply
Hi Nicola, Thank you for your kind words. We're glad you're happy with our service and look forward to assisting you with any future projects! :)Trustindex verifies that the original source of the review is Google.
Our practice has an automatic door which was not installed by Next Doors. It has not been opening properly for over a year now but we did not want to go back to the original installer. We researched Next Doors and Emma and Joe were very prompt at responding to my queries regarding a site visit. They sent a wonderful engineer along, called Bill, who was very knowledgeable, helpful and professional. He was very thorough and took the time to fix every detail of the door and explain to me what should be happening and why. (It had never been installed correctly by the original installer). My boss was overjoyed that finally our door is fixed!! Now if we ever have another issue we will 100% be back in touch with Next Doors as they definitely get the job done to a high standard. Thank you Bill, Emma and Joe.
Owner's reply
Thank you for such a lovely review, you were a joy to work withTrustindex verifies that the original source of the review is Google.
Prompt, professional and polite. The frosted tints for all my dad’s ground floor property windows, were installed effortlessly. The job was done quickly and neatly. My dad is so happy with the outcome! Living by a busy main road, it has really made a huge difference to him to have this new level of privacy and equally maintain daylight brightness throughout the property. Thank you so much!
Owner's reply
Hello Kay, Thank you very much for the kind words, extremely appreciated. We're glad you're both happy with our window film services! 😊Trustindex verifies that the original source of the review is Google.
Excellent customer service and work. Our Church Centre doors have never worked so well and looked so good!
Owner's reply
Thanks for your kind words Ginny, we're glad we could help!Trustindex verifies that the original source of the review is Google.
Next Doors offer an excellent service all round. Their office team are extremely organised, friendly and helpful. We are a primary school in SE1 and they are happy to make the journey up to us for what must be one of their smaller jobs. Their engineers have always been professional and have a good working knowledge of our system. They carry out their work to a high standard and don't charge exorbitant rates for doing so. I can highly recommend them and look forward to working with them in the future.
Owner's reply
Hello Faye, Thank you for the kind words, we're glad to be your new automatic door partner! 😇Trustindex verifies that the original source of the review is Google.
Used this company to install some new french doors with a wider opening than we had they had to cut back two pillers to make bigger they put up a screening indoors to stop any dust coming into house which was excellent no mess no dust very good fitting very pleased with result highly reccomend
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