Zidar, restavratorski sodelavec/zidarka, restavratorska sodelavka

Certification authority: 
Certified organizations for the implementation of the National vocational qualification (NPK)
EQF Level of the qualification: 
SI Slovenia
Evaluate the core competences
needed for this job
Core competences 
Perform all phases of work in cooperation and agreement with experts from the service for the protection of cultural heritage and with other contractors on the site.
In its work, it takes into account the experts responsible for the protection and preservation of cultural heritage and legislation in the field of cultural heritage protection.
Adopt and review technical documentation and normative acts and other requirements of the service for the protection of cultural heritage and plans its work in accordance with them, prepares the facility before the renovation intervention.
Perform protection of building heritage segments from damage during work and transport.
Rehabilitates and manufactures masonry structures with various materials according to historical technologies, eliminates damage and inserts missing parts.
Rehabilitate and manufactures historic plasters and pull stucco, protects them before and during transport, installs them and protects them after installation.
Rehabilitate and manufacture concrete and reinforced concrete buildings of architectural heritage, protects them before and during transport, installs them and protects them after installation.
Draw attention to unforeseen findings and changes in the planning, preparation and implementation of the intervention.
Photodocument the key stages of the intervention.
How can the certification be obtained? 
Initial training scheme (pupil or student)
Validation of prior learning
Description of the procedure for the validation of prior learning 


In the counseling process, the candidate prepares a personal summary file, which is evaluated by the commission, and if the candidate has provided credible, valid and relevant evidence of knowledge, skills and competences from the professional standard, he may:

  • recognizes the contents of the professional standard in full,
  • recognizes the contents of the professional standard in part and determines those knowledge, skills and competencies that will be tested,
  • does not recognize any content of the professional standard because the candidate does not demonstrate any knowledge, skills and competencies from the professional standard, and will check the entire professional standard as appropriate.


In a practical work assignment in the field or in a simulated situation, the candidate demonstrates mastery of the required professional competencies according to the requirements of the professional standard and technical documentation. In addition to the practical task, an oral defense of the task is also performed. The check takes a maximum of 180 minutes.

National vocational qualification

(NPK) is:

  • the procedure for obtaining a publicly valid document (certificate)
  • the process of obtaining a profession
  • the process of recognizing or confirming already acquired knowledge and skills.

The process of acquiring NPKs is generally divided into three sets:

  1. candidate application
  2. advising the candidate and preparing his collection folder (certificates, proofs, reference letters, articles, acknowledgments ...)
  3. verification and validation of NPK



The candidate applies for the procedure on the announced application deadline. Check the implementation queries on the website of the organizations that implement the NPK for a particular profession.


During the counselling process, the candidate prepares a portfolio. The relevant committee assesses the portfolio and recognises the catalogue content in part or full. If the committee is unable to recognise all catalogue content, it assigns tasks to the candidate for verification. 

Verification method

Direct verification takes place at a place of assessment in the form of practical work and an oral presentation. The place of assessment (simulated user living environment) must meet the relevant material conditions.

Verification and assessment are carried out by committees for the verification and validation of national vocational qualifications, appointed by the National Examination Centre (NEC). Committee members must be licensed by the National Examination Centre.

Condition for obtaining certificate

The candidate demonstrates the attainment of the knowledge, skills and competences defined in the catalogue of standards of vocational knowledge and skills.

Verification criteria

Criteria to be taken into consideration:

  • Analysis, planning and organization of work
  • Preparation of work or. workplace
  • Operational work
  • Administrative work
  • Commercial works
  • Quality Assurance
  • Maintenance and repairs
  • Protecting health and the environment


Criteria for assessing the components of the work process:

Evaluation area:

Evaluation area

Evaluation components





Adherence to conservation doctrine and technical and conservation documentation

Snapshot of the existing condition and identification of the causes of injuries

Preparation of working drawings and (if necessary) templates

Planning of occupational safety and health measures and environmental protection








Workplace arrangement, tools and accessories for work

Protection of building elements before the start of work

Properly and in the correct order of work procedures:

  • Cleaning of plasters and architectural elements
  • Repair of damaged walls and plasters
  • Remediation of moisture in the walls
  • Hardening and supplementing plasters
  • Masonry and completion of stone, brick and mixed walls
  • Rehabilitation of lime plasters and production of historic plasters
  • Production of drawn profiles from plaster

Use of funds for work in accordance with technical and technological rules

Conformity of the product with the plan

Workplace arrangement after work and waste sorting







Technical perfection and quality of the working sketch

Content and technical completeness of documenting the performed works






Product presentation:

  • Problems of restoration and conservation intervention
  • Justification of the use of materials, working tools and technological procedures
  • Justification for the implementation of occupational safety and health measures and environmental protection



Catalog of professional knowledge and skills


Documents needed 

Admission requirements

  • Completed secondary vocational education in the Masonry program or passed the master's exam in masonry or completed at least secondary vocational education with passed the professional part of the final exam (product with defense) for the title of vocational education Mason / bricklayer and
  • three years of work experience, evidenced by evidence of work performed in the field of masonry, and
  • evidence of performed and documented at least three interventions in accordance with the professional standard, which is part of this catalog, on buildings of architectural heritage, certified by the restorer who has passed the professional exam for the protection of cultural heritage.
Contact point 

The link to providers of training


6 months
Price is determined on the basis of the Methodology of the Ministry. • Knowledge assesment: 220 € (VAT exempt) • Validation price (submitted documents in personal foder): 102 € (exempt from VAT).
Is it possible to obtain a partial validation?: 
No ❌