Police were called to a South Service Road construction site after a weekend break-in.
According to Halton Regional Police reports, thieves cut the locks on shipping containers on the property sometime overnight on Dec. 9-10.
Once inside, they helped themselves to wiring and small appliances.
According to police the value of the stolen items is approximately $4,000.
The number and description of the suspects is unknown.
Anyone with information about this incident can call Halton Police at 95-825-4747 or Crime Stoppers of Halton at 1-800-222-TIPS (8477).