Raiders smashed their way into two properties in Bradford before stealing two cars from outside.
Police said bricks were used to smash windows at houses on Torre Road, Clayton Heights, and Medway, Queensbury, before the burglars took car keys.
A silver Vauxhall Astra, T850 DNW, was taken in the first incident, while a silver Honda Civic, YD12 UWB, was stolen in Medway. Both are still missing.
The raids were two of seven house burglaries reported in the Queensbury ward area between January 19 and Saturday, according to police figures.
Another raid, again using a brick to gain entry, happened on Eastbury Avenue, Clayton Heights, on Friday at about 12.45pm.
The suspects are two white youths, in their mid-to-late teens. One was 5ft 7in, the other was 5ft 9in. Call 101.