We has been using Tri-clean Building Services for the past 15+ years. I have great pleasure scheduling work with Nelson Rocha sometimes on very short notice they always come true for us. The workers they provide to us are very trustworthy friendly and understanding. Tri-clean does all types of cleaning for us presently they have been cleaning St. Michael’s Cathedral in Toronto for the past 4 years. Their service is great and I’ll recommend them to anyone they do a very good job.