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Origin Patio Slider (OS-29, OS-44 and OS-77)

The Origin Patio Slider's classic design lends itself to any style of property, and as it's completely bespoke, it can be tailored to coordinate with your taste and any style of property. Whether you are looking to complement an ultra modern new build or replace an existing door set, it can inject effortless elegance into your home.

There are three sightline options available with this system (either 29mm, 44mm, 77mm). The OS-29 is the slimmest system of its kind in the UK and provides you with the opportunity to maximise glass, which will allow an abundance of natural light to flood into your home. The OS-77 offers a slightly more traditional style with its larger sightlines whilst the OS-44 brings the best of both worlds.

Made from a high grade aluminium, the Origin Patio Slider allows for a practical and elegant solution, without any compromise on security or performance.

Our aluminium casement door styles are a popular choice for homeowners because of their classic, chic appearance and ‘A’ energy rating, ensuring your home retains heat, saves you money, and looks good doing it.

Origin Sliding Doors



  • Frame Depth 2 options: 143mm (double track) and 213mm (triple track)
  • Sightline 29mm, 44mm and 77mm
  • Track Height 50mm (double and triple track)
  • Minimum Sash Size 710mm wide x 1925mm tall
  • Maximum Sash Size 2000mm wide x 2520mm tall
  • individual panels cannot exceed 5.04sqm
  • Maximum Sash Weight 200kg
  • PAS 24:2016 certified
  • Concealed running gear and track
  • Square beading
  • Weather testing BS 6375 part 1 certified
  • OS-29 and OS-44 - Semi-dry glazed system with either a 28mm,
    32mm or 36mm glass unit.
  • OS-77 - Dry glazed system with either a 28mm, 32mm or 36mm
    glass unit.


Each door is equipped with an ultra-secure multi-point locking system, with 6 points of locking, including 4 hook keeps and 2 additional shootbolts. In addition to our standard barrels, we have a choice of 3-Star. Diamond Cylinder upgrades are available.

Relax, Origin has you covered

Our Origin Patio Sliding doors are covered by a 20-year manufacturer guarantee, so you can relax knowing that your windows will last for years to come.

Alternative Shades

Our collection of Origin Patio Sliding doors can come in up to 150 RAL colours and modifiable designs. In order to give it a flawless finish, the highest grade powder coating is applied to the aluminium, with a durable yet smooth finish, it offers the benefit of being highly resilient to the elements.


10 Year Guarantee

All of our double-glazed casement windows are easy to maintain and keep looking like new, partly due to their durability and longevity. We’re so confident in our windows that we offer a ten-year guarantee as standard.

Shop Origin Patio Sliding Doors with Diamond Windows

When searching for double-glazing specialists in the West Midlands, you needn’t look further than Diamond Windows. We’re well equipped in supplying and installing aluminium doors, so please don’t hesitate to get in touch regarding your door needs. Our expert team will be more than happy to advise you about our OS-29, OS-44, OS-77 sliding patio door range or any other door types.

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“Very pleased with work carried out. Approachable staff very pleasant.”

“The Diamond Window guys installed our new front door and sidescreen and did a fantastic job. They were highly skilled and also very tidy. I would use them again”

Trust our 5-Star Reviews

“Excellent selection, first class advice and outstanding fitting. We wouldn't go anywhere else for double gazing projects.”

“From design to completion , excellent service,friendly and competent tradesmen.”

Contact us
Diamond Windows, Unit 22, Northstreet I.E, Droitwich,West Midlands, WR9 8JB
Company Reg: 5367399
Open Hours
Mon to Fri: 9am to 4.30pm
Sat: 9am-1pm
Sun: By appointment