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Origin – Aluminium Windows

Give your home an upgrade with customisable Origin aluminium windows.

OW-70 Slimline Window

The impressive 65mm slimline frame creates elegant, ultraslim sightlines, and with the ability to customise the colours and finishing touches, there’s plenty to get excited about when ordering Origin windows.

With an external flush casement, the sash sits neatly in line with the outside of the window for a flawless finish.

Available with double or triple glazing, these windows can achieve thermal U-value ratings between 1.2 W/m2K and 1.5 W/m2K. Meanwhile, the stainless steel Nemesis locking mechanism is both robust and elegant.

In order to improve thermal efficiency, the OW-70 is fitted with a 32mm polyamide thermal break and a bespoke cavity gasket in the internal chamber of the window.

Guarantee: Up to 20 years

Glass: Double and triple glazing, with a unit size of 28 mm

Configurations: Casement, bay, and fixed

Lock: Nemesis espag locking mechanism

Opening: Open-out or fixed

Air permeability: Class 4

Water tightness: Class 9A

Night vent function

OW-80 Premium Window

Manufactured from premium grade aluminium, the OW-80 window offers long-term reliability and minimal maintenance.

Casement, fixed, bay, gable and French window configurations are available with a choice of double or triple glazing.

Both the inside and the outside of the window feature a flush casement for a sleek finish.

Guarantee: Up to 20 years

Glass: Double and triple glazing, with unit sizes of 28 mm, 32 mm or 44 mm

Configurations: Casement, fixed, bay, gable, and French window

Lock: Yale Encloser locking mechanism

Opening: Open-out or fixed

Night vent function

Get the Right Finishing Touch

Optional extras include trickle vents, restrictor hooks and cills. You even have a choice on the handle, gasket and cap colour.

Take a look at the popular handle options below.

Why Choose Origin Windows

If you want more of a say in the appearance and features of your windows, then Origin is a fantastic choice. From a choice of dual and RAL colours to optional extras, you can customise a wide range of features to make upgrading your property a more enjoyable and rewarding experience.

Here are just some of the extra benefits of buying Origin windows:

  • Manufactured with premium-grade aluminium that undergoes rigorous testing in Origin’s Buckinghamshire-based factory.
  • Available with a 20-year parts guarantee.
  • As for security, both the OW-70 and OW-80 are PAS 24:2016 Certified and are Secured by Design Accredited.
  • Over 150 RAL colours are available, so you can personalise your design.
  • Night vent function helps to keep your property cool, but secure throughout the night.
  • Door-to-window and window-to-window coupling are available.
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Our Customer Reviews

Great Price & Quick Delivery

★★★★★
This company have been amazing and came to our rescue when another company let us down repeatedly over a period of 4 months during our building work. We got a great price, a quick delivery time and the same product but this time with lovely fitters who knew exactly what they were doing. Now we will will have a warm house for christmas HOORAY !! We went for 3 large sliding doors and the quality of the product is excellent . Many thanks to Audrey Cieran and the team I would recommend highly
- Esther Young

Delighted

★★★★★
Delighted with the product and the service provided by Klosen. The installation team were excellent and very helpful.
- Sara Hyem

Very Happy

★★★★★
We’ve been very happy with the work Klosen recently completed for us. They installed a variety of windows and sliding doors for us on our new build project. All of the information we requested early on was provided promptly and they were great with our architect. Very happy with the end result and the colour they helped us chose.
- Sarah Munton
New build Dutch barn with gravel drive and lawn area

Why Choose Klosen

We’ve been an aluminium window installer for over 25 years. In that time, we’ve worked on some impressive buildings, including a new build in Lincolnshire that made an appearance on Channel 4’s Grand Designs and the Abba Arena in London.

Popular areas we serve include the East Anglia region, such as Peterborough and Cambridge, Lincolnshire and London. If you’re looking to upgrade your windows, we typically work within a 60-mile radius of our base in Market Deeping. Contact us to talk through your project with our team.

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Frequently Asked Questions

What’s the difference between the OW-70 and OW-80 window designs?

Both stunningly designed by origin, the notable difference between these two window designs is in the sightlines. The OW-70 comes with a slimline frame of just 65mm.

What are the benefits of choosing aluminium for windows?

Aluminium for windows offers an impressive level of strength and durability while being lightweight. In fact, this material weighs 67% less than steel.