We've used Colonnade Security for alarm monitoring at our office, home, and cottage for over 10 years. Their service has been great. When they did the initial install of our systems, they were on time, clean, professional, and efficient. We've also made several changes to our systems over the years and they have been prompt in attending to the requested changes. Whenever we've had any questions or additional requests, whether they were regarding a modification or documentation for our insurance, Colonnade has always been helpful and quick to get back to us. I would definitely recommend their services.