Balfour Beatty plc (LSE:BBY) workers will walk out for a combined four and a half days in March, adding renewed strain to the UK's rail network which has been hit repeatedly by strikes recently.
Around 100 engineers from the National Union of Rail, Maritime and Transport workers responsible for building and maintaining railways will take part in three 36-hour strikes on 3, 10 and 17 March, after rejecting a 5.5% pay increase.
RMT general secretary Mick Lynch said: "Balfour Beatty is a highly profitable company and they need to use some of their excess wealth to reward their workers properly."
They join train drivers who will strike for four days between March and April, following 27 days of industrial action launched over the past twelve months.
Prior to walkouts in February, strikes on Britain’s railways were estimated to have cost the economy £6.6bn since August, with the industry taking a £25mln hit per weekday of action, according to the Centre for Economic and Business Research.
Strikes continue to affect different sectors as staff seek higher pay and better working conditions.
Border Force staff from channel crossing points walked out on Monday, aiming to affect inbound traffic to the UK, while ambulance crews began three consecutive days of action too.
Teachers will walk out from schools in Northern Ireland and Wales on Tuesday 21 February and 2 March respectively, while the NHS looks set to be hit further when nurses strike from 1 to 3 March.
Royal Mail workers voted overwhelmingly for a new strike mandate last week, meanwhile, threatening to add to 18 days of walkout since August, which have cost owner International Distributions Services around £200mln so far.