Windsor police are warning residents to lock windows and doors after a rash of break-ins in homes and vehicles.

Many people take advantage of the warm weather by keeping their windows open at home, but this can potentially invite unwanted thieves.

Investigators in the property crime branch say this June there have been a number of break and enters reported where the investigation revealed that the suspect(s) gained entry to the residence via an open window, with only a screen acting as a barrier.

Officers say they want the community to enjoy the summer weather, but they are suggesting to be mindful as to the location and times that a residence window is left open.

This is known as "target hardening" to reduce the risk of theft -- essentially not inviting a would-be thief. Windows should offer light, ventilation, and visibility, but not easy access.

Suggestions include not keeping ground floor windows open overnight, or when no one is home. Residents are further encouraged to keep an eye out in their neighbourhood, and report any suspicious activity to police.

A second and related reminder is to lock doors to both your vehicles and your residence.

Many homeowners have an automatic garage door opener in their vehicle. Investigators have had a few cases this month where a suspect entered an unlocked vehicle, utilized the garage door opener, and then entered the residence via the unlocked pedestrian door leading into the residence.