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Welcome to the Operative Plasterers & Allied Trades Society of Ireland (Opatsi) official web site. We hope it provides you with information regarding your employment and if not you can call our head office for further assistance no matter where you are based.

We are the oldest Trade Union in the state tracing our history back to 1670.

  • We have represented workers in the craft of plastering for many years.
  • We represent craft workers in the construction industry, film industry and in local authorities throughout the country.
  • We represent members that work for the Department For Defence and the HSE.
  • We represent some of the most experienced crafts persons in the state who are available to all employers be it public or private.

If you do require a plasterer just call us and we can provide you with the right craftsman within various disciplines of the craft.



As a member we will represent you in relation to your employment with your employer.

We can represent you in the Labour Court, Employment Appeals Tribunal , at the Labour Relations Commission or at local level regarding your employment issue. If you do have an issue regarding your employment just call our head office and we will assist you.

In this uncertain time within the construction industry and local authorities it is very important to be a member of a Trade Union and we would urge anyone employed in the construction industry to join the relevant Trade Union appropriate to your grade or qualification.

We are affiliate Union within the Irish Congress of Trade Unions and sit on the Construction Industry Committee. We also sit on the Local Authority Nation Craft Group who negotiate on behalf of our members at national level within the relevant local authority or HSE district.

Please enjoy the site and feel free to call us or contact us here.

Another Ireland

Latest News

Death of OPATSI president Sean Irwin

It is with great sadness that we inform members of the passing of our President Bro Sean Irwin today.

Another Ireland is possible Conference. 4.11.2017

The Right2Change Trade Unions (OPATSI, Communications Workers' Union, Mandate Trade Union and Unite the Union) are calling a conference of trade unionists, political activists and community activists to establish whether a coordinated fight-back through cooperation can be established. Read more here...