Over £4m of funding has been made available for councils to crack down on criminal landlords and agents across England.

The money will be shared by over 100 local authorities, and used for enforcement action and to advise tenants of their rights.

One of the councils, Greenwich in London, will use the funding to trial new ‘spy’ technology to detect cold and damp homes.

Devices with sensors will be placed in rental homes where tenants have reported low temperatures, dampness or mould.

Housing Secretary Robert Jenrick said: “This government will deliver a better deal for renters. It’s completely unacceptable that a minority of unscrupulous landlords continue to break the law and provide homes which fall short of the standards we rightly expect – making lives difficult for hard-working tenants who just want to get on with their lives.”

Announcement of the latest crackdown has met with a mixed response from the industry.

At the Guild of Property Professionals, compliance officer Paul Offley said: “We fully support this initiative as it will ensure that rogue landlords and letting agents are punished for breaking the law and it will also ensure that more tenants are treated fairly.

“With the funding providing councils with a means to crack down on illegal activity in the lettings market, tenants will have more protection and the standards of the rental sector will be raised.”

ARLA chief executive David Cox said: “The announcement is an important step forward in stopping unscrupulous landlords and letting agents.

“However, in isolation this is not enough to make a real difference; sustained investment is essential to provide effective enforcement, ensure training for local authority staff, remove criminal operators and protect tenants.

“We continue to call on government for mandatory regulation of the sector and an open database of rogue landlords and letting agents which will deliver better housing standards across the country.”

The Residential Landlords Association said that the £4m sum was inadequate.

Policy director David Smith said it was “nowhere near enough”, adding: “What is needed is better enforcement of the powers already available to tackle the minority who bring the sector into disrepute.”