With the Quality Management System applied and based on the requirements of the International Standard ISO 9001:2015, which has been certified by the accredited organization SWISS Approval, the company guarantees the high quality of its frames.

VIEKKO SA, faithful to its Quality Policy and its commitment to continuous improvement of all production and delivery processes of its products, establishes Quality Objectives. The company's policy is to continuously increase the satisfaction of its customers with the products and constructions it produces, as well as the continuous research and satisfaction of their future needs and expectations. The main objective is the improvement of the products provided.

The Management of the company through the Board of Directors is committed to the implementation of the Quality Assurance System by providing all the necessary means and resources for its successful operation.

ISO 9001:2015 Certificate (See PDF)

The certified products of VIEKKO SA bear the CE marking, which means that they meet the requirements of the Directive 89/106/EEC "Construction Products", which was harmonized with the P.D. 334/94.

In particular, they meet the requirements of the ELOT EN 14351-1:2006 standard, achieving top performance in the laboratory test carried out at the PFB-ROSENHEIM laboratory in Germany.

Laboratory Tests

The quality planning of the production process requires the Total Final Quality Control of the frames on all technical aspects.

The quality parameters of the frames (thermal insulation, sound insulation, wind permeability, water resistance) are tested according to the ELOT EN 14351-1 standard in a specialized Research & Technology Centre with which our company cooperates.

The positive results of the laboratory tests combined with the strict adherence to the quality plans during the production and delivery of the products, is our quality guarantee to meet your most demanding requirements.

Indicative Results of Laboratory Tests

  • Air permeability compliant with the standard ELOT EN 14351-1: CATEGORY 4
  • Watertightness compliant with the standard ELOT EN 14351-1: CATEGORY 9A

Certificate of CE BASIC (See PDF)



Certificate of CE EXTERIOR DOOR (See PDF)

Certificate of CE SOUNDPROOF DOOR (See PDF)

Certificate of CE FIREPROOF DOOR (See PDF)