Johannesburg - The SA Municipal Workers' Union (Samwu) will embark on a strike in Gauteng on Friday in solidarity with striking public servants, a spokesperson said.
"The 52 000 members of Samwu in Gauteng would be going on the solidarity strike on Friday," said spokesperson Tahir Sema.
"Samwu's membership in other provinces are in the process of discussing pledging solidarity."
The union would inform municipalities across the province on Wednesday of its plans to strike.
Sema said there was no need for the union to give the employer seven days' notice, because there was no wage dispute between Samwu and the employer.
"But we will be informing them of the strike action."
The Congress of SA Trade Unions (Cosatu) called for a solidarity strike on Tuesday to try and get the government to accede to public servants' demand for an 8.6% wage increase and R1 000 a month housing allowance. The government is offering a 7% increase and a R700 allowance.