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- info@citihomeswindows.co.uk
- Unit 3, Alpine Business Center, Eastbury Road, London E6 6LP
Origin windows
OW-70 slimline window
A slimline aluminium window designed to maximise glass, natural light and clean modern sightlines
The OW-70 is the more minimal and light-focused option within the Origin window range, combining ultra-slim 65 mm sightlines with an external flush casement design. Built from premium grade aluminium, it offers strong security, low maintenance and reliable thermal performance while creating a refined, contemporary look.
- Sightline: 65 mm.
- Frame style: external flush casement.
- Window types: casement, bay, and fixed window.
- U-value: up to 1.2 W/m²K.
- Security: PAS 24 and Secured by Design accredited.
- Locking: multi-point locking; the Nemesis multi-point lock with adjustable cams.
Casement window
Bay window
Fixed / picture window
Suitable for double and triple glazing.
Also available in Soho style. Soho style windows are industrial-inspired, slim-profile aluminum windows that feature distinctive grid patterns to mimic classic steel-framed factory glass. They maximize natural light and offer a bold, modern-yet-heritage aesthetic for both external walls and internal room dividers.
OW-80 Premium window
A premium aluminium window system designed for broader styling flexibility, stronger insulation and a flush finish inside and out.
The OW-80 combines an internal and external flush casement design with premium aluminium construction to deliver a more architectural appearance and greater design flexibility. It is the most versatile system in the range and can also be upgraded with Aerogel for stronger thermal performance.
- Sightline: 91 mm.
- Frame style: internal and external flush casement.
- Window types: casement, bay, fixed / picture, gable, and French window.
- U-value: up to 0.8 W/m²K with Aerogel.
- Security: PAS 24 and Secured by Design accredited.
- Locking: Yale Encloser lock with bi-directional locking technology.
Casement window
Bay window
Fixed / picture window
Gable window
French window
Accommodates 28 mm, 32 mm, or 44 mm double or triple glazing.
OW-80 tilt and turn window
A versatile aluminium window that combines premium styling with flexible ventilation and inward-opening practicality.
The OW-80 tilt and turn sits within the premium window range and offers an alternative to standard casement configurations where more flexible ventilation and easier access are needed. It can tilt inwards for controlled background ventilation or open fully inwards for maximum airflow and ease of use.
- Sightline: 91 mm.
- U-value: up to 0.83 W/m²K.
- Operation: tilt for ventilation, turn for full inward opening.
OW‑80 tilt and turn can be glazed with double or triple units at 28 mm, 32 mm, or 44 mm overall thickness. This includes standard 28 mm double glazing and up to 44 mm triple glazing for higher thermal performance.
Bi-fold window
A bespoke aluminium folding window designed to create large openings and a stronger connection between indoor and outdoor spaces.
Bi-folding window brings the key benefits of a bi-fold door into a window format, including slim sightlines, large openings and flexible configuration options. It is suited to layouts where a more open serving, viewing or entertaining space is required, and can be tailored in size, colour, opening direction and hardware selection.
- Sightline: 72 mm.
U-value: up to 1.1 W/m²K. - Sash width: 400 mm to 1200 mm.
- Opening options: inward or outward; fold left, fold right, split, or all to one side.
- Security: Secured by Design.
The Bi-folding window is glazed in line with the bespoke design and configuration.
More about Origin windows
Explore our range of windows
Whether you’re planning a replacement, renovation or a new build, we have a range of window types and configurations available to suit your desired aperture. Whether it’s a Bay, Casement, Fixed, Bi-folding, French or Gable window, each type is guaranteed to deliver smooth, flawless and effortless operation as it is made using premium-grade aluminium. Every aspect is completely tailored, including your size and colour scheme.
Product options
Because all elements of our windows are bespoke, it means the personalisation options are vast. You can indicate:
Choose from either the slimline OW-70 or premium OW-80 system.
The size of your aperture. Your installer will measure this for you.
Choose how your windows open and the direction they fold in.
How many individual sashes you want in your configuration.
Select your colour scheme, whether that’s the same inside and out or different.
Choose from a selection of stunningly designed handles from our ranges.
Material
Premium grade aluminium.
Colour options
Choose from over 150 RAL colours to either blend your windows with your home’s palette or create deliberate contrast. From deep blacks for a steel‑look appearance to rich tones and metallic finishes, the frames can be tailored to make each window a clear design statement.
The window range is designed for strong thermal efficiency, low maintenance and long-term reliability, with the OW-70 and OW-80 also meeting PAS 24 and Secured by Design standards.
Each window comes with an industry-leading warranty of up to 20 years.
Proudly manufactured in the United Kingdom at our Buckinghamshire facility.
Discover our industry leading guarantees for complete peace of mind.
Our expert engineering allows you to focus on enjoying the products rather than taking the time to maintain them.
Find out how our windows benefit from the strength, resilience and versatility of our premium grade aluminium.
All Origin products are tailor-made to your requirements by our highly skilled team.
Find out how our unbeatable delivery promises can help your project.
A wide range of colour and finish options ensures that there is a style to suit your home.
We’re committed to your safety through compliance and accreditation initiatives.
Our windows help your house stay warm in winter and cool in the summer.