Jon in Richmond Hill 2 reviews Richmond Hill, ON Joined 2009/07/24 First Review 2/10 Duct cleaning Duct Cleaning review in Richmond Hill About 10 years ago Company doubled price on-site. Booked the unlimited duct package with coupon - gave size of house and more than 40 vents. Company did not ask how many furnaces etc. and then doubled price on site. Job Price Was this review helpful?