A massive fire at Mayson Machinery in West Windsor started accidentally.
Investigators from the Office of the Ontario Fire Marshal wrapped up their investigation Wednesday. The final damage estimate is $1.8-million.
The fire, in the 3700-block of Sandwich St., started around 9pm Monday and continued to burn overnight. There were employees inside the building at the time, but everyone escaped safely.
Nearby residents were advised to keep windows and doors closed overnight because of concerns about toxic smoke.