Sinai Security Services has been an excellent security company to work with over the past 20 or so years. Ken Grayson is a professional with integrity and runs his company as such. Thank you for the sense of peace and security that a good alarm system company should provide. All the very best!
Date of Posting: 18 January 2016
Posted By: Julie Starr
Thornhill, Ontario


We have been customers of Sinai Security for over 20 years. Ken has been incredibly reliable. He will be at our door within hours and even minutes for any issue or question we may have with the system. We feel very secure and protected with our alarm system and even more so knowing Ken is watching out for our family’s safety and security. His suggestions and knowledge have always been helpful. Thanks for the wonderful service you provide. The Nightingale Family
Date of Posting: 02 April 2014
Posted By: Judi Nightingale


I have used Sinai for years at several residential locations for locks and security. They are the best. Ken and crew really go the extra mile. Clean, efficient work.
They really stand behind their work and will make sure everything is just right.
Date of Posting: 29 March 2014
Posted By: Joel
North York


Sinai Security has been our choice for our home alarm system over the past 17 years. Whenever we have encountered a problem (due to our phone company, renovations or otherwise) Ken has been there for us immediately. It does not matter what time of day or night, Ken will address the problem until it is fixed!
Date of Posting: 28 March 2014
Posted By: Marla


Thanks to a company like Sinai Security we were able to offer our customers great options for Access Control and CCTV. Sinai Security implemented a Taylor made security system that acts as a concierge for our tenants allowing each tenant access, if desired, to cameras in common areas as well as an intercom system for granting access to customers into our building after regular business hours. Such a system allows our tenants to feel secure knowing that not just anybody can be on premise after hours.
Mr. Ari Weinberg
Property Manager
Planrite Developments


It’s a real pleasure to have a company like Sinai Security stand behind its products both in service and quality.
Siani Security offered us great options for Alarm, Access Control and CCTV, which makes managing the security of our business very easy. O’Doughs manufactures Quality Gluten Free Baked Goods where following strict food safety standard protocols is a must. Ken and his team tailored a security system that plays an integral part in our daily Quality Assurance and Safety Systems.
I know that we will have many years of dependable service with Sinai Security.
Ari Weinberg


I’ve been a customer of Sinai Security for over 27 years. My residential and commercial properties are protected. Whenever there’s been any equipment maintenance required or service of the system required my calls have been promptly returned and work completed professionally and quickly. I would not hesitate to recommend Sinai Security to all reading this. Sinai is an outstanding company that has been in business for decades with an excellent, well deserved reputation.
Date of Posting: 03 March 2014
Posted By: Dr. Alex PIster
Mississauga – Woodbridge – Richmond Hill


I have been a Sinai Security client for several years now. Ken provided a system perfectly suited to our budget which fulfills the requirements of our property. Solid technical know-how. Extensive product knowledge. Prompt service!!
If you want your job done properly and responsibly, you need Sinai Security.
Date of Posting: 26 February 2014
Posted By: M Lipperman
Executive Chef/Business Owner, GTA


I was very impressed with the knowledge, expertise and willingness to accommodate our specific needs. We have enjoyed smooth, uninterrupted services and I feel confident that our security alarm concerns are well-taken care of.
Date of Posting: 26 February 2014
Posted By: Jon Sherrington
A professional marketing communications studio, Thornhill ON