Pickets will be placed at construction sites tomorrow at Intel in Leixlip, Co Kildare and Pfizer in Grange Castle, Co Dublin.
It is part of a 24-hour strike by mechanical workers at two engineering companies, H A O'Neil and Leo Lynch.
Plumbers, pipefitters and welders, who are members of the Unite trade union, voted in favour of taking industrial action in a dispute over the restoration of a travel allowance.
H A O’Neil, which is part of Jones Engineering, had sought a High Court order aimed at preventing tomorrow's strike.
The work stoppage will go ahead but Unite has given an undertaking to the court that no further industrial action will take place after 10 March pending the decision of the High Court.
Unite said that the first hour of "travel time" was cut as a temporary measure following the 2008 financial crash and that the restoration of the payment would mean an increase of up to 12.8% in gross pay.
"Construction workers are continuing to shoulder the burden of austerity-era pay cuts during an unprecedented cost-of-living crisis," said Unite General Secretary Sharon Graham.
"There should be no doubt regarding Unite’s determination to see our members’ pay increased. This dispute will escalate unless employers come to the table," Ms Graham said.
The Mechanical Engineering & Building Services Contractors Association (MEBSCA), which is part of the Construction Industry Federation (CIF), said that the workers have received pay increases over the last year and that in 2011 agreement was reached to incorporate the travel payment into hourly pay.
MEBSCA said that Unite's claim for an additional hour's travel was rejected by the Labour Court last year.
The association said that the workers concerned are covered by a Sectoral Employment Order (SEO) which sets out the legally binding rates of pay and conditions of employment, and that the two companies that have received strike notice have honoured all agreements entered into with the unions.
MEBSCA has urged workers not to picket and for Unite to channel its claim through the SEO process.
