What’s The Difference Between Origin OW-70 And OW-80 Windows?

When researching premium aluminium windows, many homeowners compare Origin OW-70 vs Origin OW-80 windows. Both are high-quality systems made in the UK, but they are designed for slightly different purposes.

So, what’s the difference between the two, how are they similar, and which one is best for your home? Here’s everything you need to know about Origin OW-70 vs Origin OW-80 windows.

What Is the Origin OW-70 Window System?

The Origin OW-70 window system is a slimline aluminium window designed to maximise natural light and give a sleek, modern appearance.

• Slim sightlines – just 65–70mm frames for more glass and less frame.

• Contemporary design – ideal for modern extensions and new builds.

• Glazing options – double or triple glazing available.

• Energy efficiency – meets UK Part L Building Regulations.

• Opening styles – casement, fixed, bays, gables, and French windows.

The OW-70 is best if your priority is a minimal frame and maximum glass area.

What Is the Origin OW-80 Window System?

The Origin OW-80 window system is a versatile, high-performance aluminium window with slightly thicker frames but much more flexibility.

• Sightlines – around 91mm, giving a more robust look.

• Classic or modern – works in both traditional and contemporary homes.

• Customisation – almost unlimited colour and finish choices.

• Glazing options – up to 44mm triple glazing for top thermal efficiency.

• Energy ratings – A++ achievable with the right glass combination.

• Configurations – tilt & turn, bay, casement, gable, and fixed styles.

The OW-80 is best for performance, customisation, and versatility.

Key Differences Between Origin OW-70 vs OW-80 Windows

How Are Origin OW-70 and OW-80 Similar?

While the OW-70 and OW-80 differ in frame thickness and flexibility, both Origin window systems share the same high-quality standards:

• Made from premium-grade aluminium.

• Low maintenance, durable, and weather resistant.

• 150+ RAL colours and dual-colour options.

• PAS 24 security compliant with multipoint locking.

• Long guarantees of up to 20 years.

• Wide range of opening styles available.

FAQs: Origin OW-70 vs Origin OW-80 Windows

Which is slimmer, OW-70 or OW-80?
The OW-70 has slimmer sightlines (65–70mm), while the OW-80 is chunkier at around 91mm.

Which is more energy efficient?
Both are efficient, but the OW-80 can achieve higher ratings (up to A++) due to thicker glazing options.

Do both ranges come in the same colours?
Yes – both offer over 150 RAL colours, dual-colour options, and multiple finishes.

Which suits modern homes better?
The OW-70, thanks to its slim, minimalist design.

Which is better for period or traditional properties?
The OW-80, as the thicker frame looks more in keeping with classic designs.

Are both secure?
Yes – both comply with PAS 24 standards and feature robust multipoint locks.

What about cost?
The OW-70 is usually more cost-effective, while the OW-80 may be slightly more expensive due to thicker glazing and higher performance.

In Summary: Origin OW-70 vs Origin OW-80

• Choose the Origin OW-70 if you want slim sightlines, a modern look, and maximum glass.

• Choose the Origin OW-80 if you want the most versatile system, with thicker glazing, more efficiency, and flexibility for different property styles.

When comparing Origin OW-70 vs Origin OW-80 windows, the decision comes down to design preference and performance requirements. Both are premium aluminium systems, made in Britain, backed by long warranties, and trusted by thousands of homeowners.