Interlock Metal Roofing - ON

I contacted interlock roofing as I was looking for permanent metal roof. the salesman was pushy but knowledgeable. The installer came and went as he pleased, taking almost one month to complete the job. He constantly left a mess behind that I had to clean up and damaged my air conditioner as well. I wrote a complaint letter to the head office but never heard back. Very disappointed. Do NOT use this company.