EN 14351 CE Marking and Testing for Doors and Windows

EN 14351 is the standard titled "Windows and doors - Curtain walls and windows - Product characteristics, performance requirements and test methods." It sets the rules for CE marking and conformity testing of construction elements such as windows and doors. Compliance with EN 14351 allows products to circulate freely in the European Union (EU) market and confirms that they meet quality and safety requirements.

Under EN 14351, manufacturers and importers of windows and doors must follow a specific path to obtain CE marking. The steps include:

Declaration of conformity: the manufacturer or importer declares that the product meets EN 14351. The declaration must cover the product's essential characteristics, performance requirements, and the relevant test standards.
Product testing: windows and doors are tested according to EN 14351. The tests cover performance, durability, air permeability, watertightness, thermal insulation, and acoustic insulation, and are carried out by authorised laboratories.
Technical file: the manufacturer or importer prepares a technical file covering technical drawings, test results, performance declarations, user instructions, and other supporting documents.
Product audit: a notified body reviews the test results and the technical file. The audit also looks at the production site, the manufacturing process, and the quality control system. Once the product meets every requirement, it qualifies for CE marking.

CE marking confirms that the product can be sold and used freely in the EU market and signals to consumers that the product meets defined performance characteristics.

Why Eurocert?

Eurocert is one of the certification bodies that supports manufacturers through the EN 14351 conformity process. Reasons to work with Eurocert include:

Expertise and experience: Eurocert specialises in conformity assessment of doors and windows and has deep knowledge of how EN 14351 requirements apply in practice.

Fast response: Eurocert keeps the certification process moving with quick replies and on-time delivery of audits and reports.

Customer focus: Eurocert puts client needs first. The team listens, guides, and supports door and window manufacturers with solutions shaped around their production.

International recognition: Eurocert is recognised internationally, which gives Eurocert-certified products credibility in export markets and helps them compete on equal terms.

Technical support: Eurocert provides technical guidance throughout the certification process, helps manufacturers interpret and apply EN 14351, and coordinates the test programme with partner laboratories.

Eurocert brings experience and technical depth to the EN 14351 process for doors and windows. Reliability, expertise, quick turnaround, and direct technical support are the reasons manufacturers choose to work with us.

EN 14351 guides window and door manufacturers and importers through conformity assessment and pushes the sector to higher quality benchmarks. Consumers get safer, better-performing products. The standard also lets manufacturers declare the specific characteristics and performance levels of each product, so buyers can match the product to their actual needs.

EN 14351 Cost

The cost of EN 14351 conformity depends on several variables: the type, quantity, and complexity of the products, the test requirements, the certification process, and the fee structure of the certification body.

Certification bodies typically charge an application or assessment fee that covers technical file review, test planning, and audit work. The cost of each individual test is separate. The number and complexity of tests drive the total cost.

For an accurate quote, contact the certification body directly and share the product specifications and requirements in detail. The body will then issue a project-specific proposal. Additional services such as consultancy support during certification or laboratory coordination for testing should also be priced in.

Look at the cost of EN 14351 certification as a long-term investment. It pays back in market access, credibility, and the trust that comes from products proven to meet recognised quality standards.

EN 14351 CE Marking and Testing for Doors and Windows

Sustainability

Looking for professional support?