Ideal for the Individualist

Internorm Triple Glazing

Charles Eckart takes great pleasure in presenting Europe’s leading triple glazing windows,
doors and passive house products, custom made to perfection for every project.

Internorm by Charles Eckart
Internorm by Charles Eckart

Traun/upper Austria Door production, UPVC window, insulating glass and aluminium production

Internorm by Charles Eckart

Sarl Einsbach/upper Austria UPVC window and insulating glass production, extrusion

Internorm by Charles Eckart

Lannach/Styria Timber/aluminium production

Internorm – Europe’s leading specialist window and door brand

Design, function and style: Internorm personify industry leading expertise in thermally insulating window and door systems delivered by specialist dealers of the highest competency from consultation to installation and beyond.

  • Exporting to all regions of Europe & the USA
  • Investing £30 million in R&D yearly
  • Annual turnover in excess of £300 million
  • Triple Glazing Windows & Doors
  • Passive House - Passivhaus

The project is driven by the desire to invest in and provide sustainable energy efficient triple glazing windows and doors to all, which is why we export to all regions of Europe and the United Stated. We invest £30 million in research and development every year to remain a pioneer in the field and achieve this goal.

Internorm is proud to boast annual turnover in excess of £300 million as testament to the good work achieved from the company’s foundations 81 years ago to the present day. The family owned brand comprised of over 1,250 partners continues to grow in Europe and beyond.

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We offer more, to meet your every need!

Charles Eckart

As your local approved Internorm distributor for the South Yorkshire, Derbyshire, Lincolnshire
and Warwickshire areas, Charles is ready to lend his expertise.

Triple Glazing with Charles Eckart


As the premier dedicated Internorm dealer in the midlands Charles is ready to lend you his time and expertise whatever your requirements. Passion for the product is the reason why Charles only recommends Internorm.

The level of service you need to make your dream a reality

Be it for your own personal home, work space, retail installation or next architectural masterwork, accept no less than the highest construction and performance standards available on the market combined with the highest levels of service.

With Internorm trained installers, surveyors and offices in Leamington Spa and Derby support is never far away. Rely on our dedicated, personalised and professional level of support and have your next installation run flawlessly.


  • Internorm Trained Installers
  • Internorm Trained Surveyors
  • Offices in Leamington Spa & Derby
Download Brochure

We offer more, to meet your every need!

Brochure Downloads -

Europes leader in UPVC, UPVC/Aluminium and Timber/Aluminium Windows


Internorm Triple Glazing


Internorm Doors