At about 10:30 a.m. MT, EMS crews and police officers were called to an address in the 100 block of Valley Crest Close N.W.
A man and a woman were declared dead at the scene, an EMS official said.
Police are calling the deaths suspicious and the homicide unit is handling the investigation.
"This is very early in the investigative stages, because these are very complex, very, very intricate types of investigations. Our homicide unit has been consulted immediately," said Duty Insp Darren Leggatt.
Neighbours told CBC News a young couple was renting the house and that his mother had not been able to get in touch with him for days.
According to neighbours, she borrowed a ladder to get up to the second floor window and discovered the couple dead inside.