In 1972, after a national strike, building workers achieved the largest single pay increase ever negotiated in the building industry: an immediate pay increase of £6 per week for craftsmen and £5 per week for labourers. This was on a previous national minimum rate of just £20 for a skilled worker and £17 for a labourer. It was a magnificent victory for the workers and their trade unions.
At the time working conditions on building sites were second only to coal mines for fatalities and serious injuries. Facilities like toilets, washbasins, lockers and so on were few and far between. Trade union organisation was hard because of the nature of the industry, where workers moved from one site to another, and organising to defend wages and working conditions had to start all over again with a new group of people. To make it even harder, the employers funded a secret organisation, the Economic League, to maintain a blacklist and keep active trade unionists off the sites.