What does it actually mean to clients?

The scheme is designed to distinguish between the elite [1st] Window Partner and other very much smaller regional Internorm “Distributors” who by definition do not meet these strict criteria. By engaging with AT-Eco Windows you are working with one the largest and most successful UK Internorm providers.

〉 Your [1st] Window Partner

Kent Showroom

Tel.: 01732 867043
Hours: Mon - Fri 9:00AM - 5:00PM
Sat - Sun by Appointment only!
Tuesday 19th of October 2021

Aluminium Door AT400

Home Pure, Home Soft, Ambiente

AT 400 ALUMINIUM ENTRANCE DOOR

Square-edge frame and smooth door leaf creates clear lines.

Aluminium Door AT400 - Picture: Internorm
Aluminium Door AT400 - Picture: Internorm
Aluminium Door AT400 - Picture: Internorm

PROPERTIES

Thermal insulation

Thermal insulation (in W/m 2K)

U d as low as 0.75

Sound reduction

Sound reduction (in dB)

up to 36

Security

Security

up to RC2


Test Certificate Available

  • Triple gasket seal.
  • Thermally broken threshold.
  • Foam insulated core for the high thermal insulation.

Related Information

Click on the link below to download related information.



bim object logo







Bright, light-flooded rooms create space. Straight-lined shapes and modern design emphasise the architecture.







This building style exudes harmony and cosiness. Homely living comfort which radiates cosiness and support.







Art nouveau, traditional, classic houses and elegant estates describe this architectural style. A composition of timeless classic and elegance.

Get a free quote today or book your free consultation.

Contact us today to book a FREE consultation or use our quote form to take your first steps towards a clear and bright future with AT-ECO, quality installers of Internorm Windows & doors.

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