OMNIA Casement Windows

OMNIA casement windows are a premium flush system designed for installers, developers and contractors looking to deliver higher-spec projects with a clean, modern finish.

With a true flush appearance inside and out, OMNIA provides consistent sightlines and a refined aesthetic, while maintaining strong thermal performance and reliability on site.

True flush finish internally and externally
Slim sightlines for increased glass area
Strong thermal performance with double and triple glazing
PAS 24 compliant security
Suitable for modern and traditional properties
Designed for consistent fabrication and installation

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Product features

Specifications

Product features

Design features

The Omnia Casement Window system features a true flush sash design, where the sash sits level with the frame to create a clean, consistent finish across the installation. Built with installers in mind, the system is designed for repeatability and consistency, helping to reduce on-site adjustments and improve overall finish quality. Its multi-chambered profiles enhance thermal performance by supporting low U-values, making it suitable for meeting modern building regulations. In addition, it offers strong design flexibility, with a range of glazing options, bead styles, and finishes available to suit a variety of project types.

Product Options

Flush sash design
Double or triple glazing compatibility
Wide range of colour and foil finishes
Choice of sculptured or chamfered detailing
Multi-point locking options for enhanced security
Energy-efficient multi-chambered profiles
Feinstruktur and premium finish options available

Specifications

U-values

Glazing options

PVCu profile

Security performance

Colours

Finishing

OMNIA Casement Windows

from 0.79 W/m²K (triple glazed)

Double and triple

Multi-chambered PVCu profile

PAS 24 security performance

Wide range of colours and finishes available

Compatible with Feinstruktur finish

Applications

• High-end residential projects
• Design-led developments
• Renovation and upgrade projects
• Installations where aesthetics are a priority
• Projects requiring a premium finish

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FAQs

Can’t see the answer you’re looking for?

When should I specify OMNIA casement windows?

When the project requires a premium, flush appearance with strong performance.

Are OMNIA windows suitable for traditional properties?

Yes, the flush design works well across both modern and heritage-style homes.

Do OMNIA windows meet current regulations?

Yes, they are designed to meet modern thermal and security requirements.

I have been buying windows and doors from Quantum Windows for over 25 years. I have always found the pricing very competitive and the quality has been very high. On the rare occasion a problem has arisen it has been dealt with swiftly and efficiently. The office staff are always polite, friendly and professional and we have built a strong relationship over the last 25 years. The drivers are excellent. I know them very well and they have adapted to my ways of working and are always willing to help and accommodated me.

Craig Gutteridge

“We have dealt with Quantum Windows for 13 plus years, we find the staff to be courteous and polite and any queries we may have are dealt with promptly and efficiently, nothing is too much trouble”

Jackie - Accounts Dept

W R Enterprise Glass & Glazing Ltd.

We have been buying from Quantum Windows for almost 30 years now, they offer a wide product range and the Team have excellent product knowledge which is invaluable in an ever-changing market.

All team members are friendly, helpful and efficient, orders are processed with care and quotations provided promptly. I would have no hesitation in recommending Quantum Windows.

Vicki Webb

Clearview 2000 LTD

‘We have used Quantum Windows for many years now, we have always found them to be very easy to work with, the staff are all very helpful and friendly, they are always available to offer any help should we need it, excellent product!’

Andy

Chapel Windows

Glevum and Quantum have enjoyed an excellent working relationship for a number of years, working together to provide a high quality, value for money product offering and service for the end user.

As well as delivering a high quality product, the knowledge and experience of the staff at Quantum is invaluable to a customer in a market where Building Regulations are constantly changing.

Mike Donaldson

Glevum Design & Build

As installers of both PVCu and Aluminium to the New Build market, the importance of on time delivery is totally time critical.
Over the last 20 years Quantum windows have worked closely with PGB to partner with us and deliver our offer to site.
Highly professional, and a pleasure to have worked with them so closely over the years.

Phil Martin CEO

Portico CB Ltd

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