Workers at housing association One Housing Group were set to strike from Wednesday to Friday of this week.
Around 150 workers in the Unite union joined a previous three day strike last month, against plans to slash pay for 200 staff.
The pay cut, of up to £8,000 a year, comes on top of a three year pay freeze—even though the company’s profits tripled last year.
A follow-up strike was postponed in the hope of talks with the Acas conciliation service, but bosses have yet to respond.
Pickets are planned at 11 sites around London.
Reballots have opened the way to bigger struggle