Rogue landlords putting tenants at risk will be held to account, it is claimed.
Redbridge Council has vowed to continue to protect vulnerable people living in dangerous conditions after signing up to a campaign launched by charity Shelter.
It calls on authorities to do more to tackle the problem by enforcing existing laws.
Shelter is also calling for councils to introduce a landlord accreditation scheme and carry out regular inspections of properties to ensure regulations are being met.
Redbridge Council successfully prosecuted six landlords last year, with one fined £13,000 for renting out a house which had an uncapped gas supply and a broken fire alarm.
Cabinet member for housing, Cllr Michelle Dunn, said: "We are determined to crack down on rogue landlords who flout the law and place tenants’ lives at risk.
"Our Housing Standards team works closely with the police, London Fire Brigade, UK Border Agency and HMRC to tackle criminal landlords.
"Every day, our Housing Enforcement Officers are out visiting properties and responding to tenants’ complaints across the borough."