Best of 2024
– winner 5 times
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
Out of the box
10/10
I had the team of Sems come to my house for a cleaning appointment. At the ti...
Dana in Toronto
Dedicated service
10/10
Is this what a dream team looks like? Arrived on time, dedicated, passionate,...
Suren in Toronto
Duct Cleaning
10/10
We received exceptional professional services from Sem's Duct Cleaning team. ...
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