The saw was being used to cut out a patch of road when the blade shot across a driveway and into a nearby home.
Home surveillance video caught the incident and showed a worker looking to see if anyone else saw it happen. The worker then retrieved the blade, finished the cut and took off.The blade left a 3-foot gash in the side of an empty house in Lorain, a town about 25 miles west of Cleveland.
The house has been vacant for about a year.
Rachel Gayhart says she and her husband checked their video Monday to see why the street work wasn't finished. She says the blade missed a gas meter on the side of the neighboring house by two feet.
Lorain officials say the firm doing the work under contract for the city is investigating.
The Associated Press contributed to this report.