Alarm Systems in Markham, Ontario

"On one of the coldest days of the year my front door lock broke and I was locked out. I have never used Pre Lock..."

"Had some work done prior to the new year. John was excellent, quick response and courtesy. Knows his stuff. Was on..."

"We are more than happy to give a "two thumbs up" review to Safe Tech. We made the big switch over from another..."

"I have never felt this comfortable and safe in my home. I have built a trusting relationship with Grand Alarms and I..."

"I was forced to use this company by my builder Gernaium. Never had I needed to pay a sub-contractor seperately but i..."

"Ray and his team installed an alarm system and security cameras from start to finish and they did a great job. Ray..."