A Calgary contractor who admitted to taking 200 videos of a 20-year-old woman and her mother after installing secret cameras during bathroom renovations in their home has been sentenced to 18 months in jail for voyeurism.

Ting Kay Chu, 45, who also uses the alias Tohmus Chu, pleaded guilty to two counts of voyeurism and breaching his probation conditions and was sentenced on Wednesday.

Chu was hired in 2014 to do renovations on a home in Coventry Hills by A.B., who lived with her 20-year-old daughter, C.D. The identities of both women are protected by a publication ban.

Previous conviction

Chu had a previous conviction for voyeurism and was on probation and in treatment when he took the videos of A.B. and C.D.

A condition of his probation was that he not possess any recording device.

Chu's crimes were "ongoing, calculated and predatory" and were "egregious breaches of the privacy" of the victims, said provincial court Judge Catherine Skene in handing down the sentence.

"Two hundred videos from the victims' bathrooms in 100 days is staggering," said Skene.

Two of the cameras were discovered by A.B., who then called police.

Chu admitted to planting hidden cameras in the electrical sockets of three bathrooms of the home, according to an agreed statement of facts prepared by prosecutor Nadine Nesbitt and defence lawyer Austin Nguyen.

Cameras also found in pen, key fob

When police executed a search warrant at Chu's home, they seized a number of computers and storage devices as well as three covert cameras. Officers also found three receipts from The Spy Store.

Officers also found hundreds of videos and photos — mostly of C.D. — as well as videos of himself masturbating.

Chu had renamed many of the videos including "shwrdance," "nipple slip" and "cleavage."

There were also videos of C.D. found on a hidden pen camera and a key-fob camera.

Victim feels 'violated, humiliated'

Some of the videos recovered by police show Chu setting up the cameras in the bathrooms.

A psychiatric assessment found Chu had no genuine feelings of remorse.

In her victim impact statement, C.D. described feeling "dirty, ashamed and … invisible."

"I feel violated, humiliated, embarrassed," she said.

Chu must also submit a sample of his DNA and will be placed on the national sex offender registry.