Best of 2024
– winner 5 times
Home Duct Cleaning
10/10
I was very impressed with Sem's Technician Michael and his associate. Micha...
L. L.
Great Service
10/10
Fantastic service! They were professional, on time, and did a thorough job. M...
Yuri
Perfect Duct Cleaning
10/10
We had duct cleaning done today and we could not wish for a better service. T...
Private User
Duct-cleaning
10/10
Sem's is first-class. We have had other contractors in our house, including a...
stevenjkerzner in Markham, Ontario
Lower utility bills
10/10
My wife and I noticed our HVAC system not working the best so we decided to t...
Elda in Richmond Hill