Night-shift cleaners working at Addleshaw Goddard's London office held a protest this morning over their wages and working conditions.

About 13 protesters played music and blew into vuvuzela-esque instruments, brandishing Cleaners and Allied Independent Workers Union flags (CAIWU) outside the firm's London headquarters at 60 Chiswell St this morning.

Organised by CAIWU, the protest targeted both the law firm and the cleaners' employers, Incentive FM.

One representative for the night-shift cleaners at the protest told Legal Week that they are currently paid lesser rates than day-shift cleaners, and receive less holiday days than their day-shift counterparts.

He said: "Some other employees have benefits we don't have, we're asking to be treated fairly and equally as the work is more demanding at night, and we need more time off."

Legal Week witnessed a police officer request on behalf of Addleshaws' security team that the protesters reduced their noise, which they refused to do.

Last month, Legal Week revealed that cleaning staff were set to strike in what the cleaners' union describes as "a protest against unequal working conditions".

Addleshaws then announced its London-based night-shift cleaners will be paid the London Living Wage from the autumn.

An Addleshaw spokesperson said in a statement at the time: "We are in regular dialogue with our third-party suppliers, and Incentive FM will be bringing the night-shift team in line with the London Living Wage when salaries are reviewed in the early autumn."

But the CAIWU said there is no guarantee that the new salary will be maintained when the London Living Wage rises in November.

Addleshaw Goddard did not respond to requests for comment.