David Hampshire will be sentenced later this month.
David Hampshire, of Osborne Square, stole the items from customers while in their homes to use the toilet.
The 28-year-old first targeted a number of customers in the Becontree area in September, October, and November last year.
On each occasion, he would clean the windows, then come back the following day to collect payment.
But after being paid, he would ask to use the toilet and would steal jewellery while left unsupervised.
The first victim contacted the window cleaning company’s owner who vowed to terminate Hampshire’s contract.
But he went on to steal from three other customers and was arrested by police in November.
Hampshire was charged with four counts of burglary but initially denied being responsible.
But, on the first day of his trial at Snaresbrook Crown Court on Monday, he changed his plea to guilty.
PC Raheel Sarwar, who led the investigation, said: “Although most of the items stolen in these burglaries were not worth a great deal of money, each piece was of significant sentimental value to the victims who were left devastated when they were taken.
“The victims had trust in Hampshire, who completely abused the kindness they showed by letting him into their homes.
“Thanks to the thorough investigation carried out by our officers, Hampshire had no choice but to admit his guilt and we hope this brings some level of closure to the victims caught up in his deceitful actions.
“We are continuing to work to reunite the victims in this case with their jewellery, which we believe may have been pawned, and urge anyone with information to come forward.”
Hampshire will be sentenced at Snaresbrook Crown Court on Friday, 31 May.Tags: Dagenham, Becontree
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