Family-owned · Toronto · Since 1988 4.9/5 on Google

Home & business security systems in Toronto & the GTA

Alarm systems, alarm takeovers, security cameras and 24/7 monitoring — designed around your property, installed by our own technicians, with no annual contract.

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  • Free on-site evaluation
  • Use your existing alarm equipment
  • Unlimited guard dispatch
Since 198838+ years protecting the GTA
No annual contractsWe earn your business monthly
Unlimited guard dispatchIncluded with our monitoring
4.9 / 5 on GoogleRated by Knightwatch customers
What we do most

Which security service do you need?

Most Knightwatch customers come to us for one of three things — for a home or a business.

Executive home with a Knightwatch Alarms lawn sign

Alarm takeovers

Already have a system? Keep compatible panels, keypads and sensors and switch your monitoring to Knightwatch.

Modern luxury home with a Knightwatch Alarms lawn sign

New alarm systems

Systems designed around your property on site, then installed and tested by our own technicians.

Contemporary home at dusk with a security camera and a Knightwatch lawn sign

Security cameras

Planned coverage with AI alerts, colour night video, active deterrence and local recording.

How it works

How does a monitored security system protect your property?

Detect

Door, window, motion and glass-break sensors — plus smoke, CO, flood and temperature devices — detect a problem the moment it starts.

View

AI cameras show you what’s happening and record it locally, with alerts for people and vehicles instead of every passing shadow.

Respond

Signals reach our 24/7 monitoring department, which follows your instructions and dispatches help — with unlimited guard dispatch.

Equipment

The equipment we install

Proven, professional-grade equipment — installed, tested and serviced by our own technicians.

Knightwatch Alarms lawn sign in front of a home

Knightwatch lawn signs & window decals

A visible sign and decals tell would-be intruders the property is protected and monitored.

DSC PowerSeries Neo HS2LCD full-message LCD alarm keypad

DSC PowerSeries Neo keypads

Full-message LCD keypads for simple arming, disarming and clear status at a glance — the DSC equipment our technicians install and service every day.

PowerG wireless door/window contact, motion detector, glass-break detector and smoke & heat detector

Wireless door, motion, glass-break & smoke sensors

PowerG wireless contacts on every entry point, motion and glass-break coverage inside, plus monitored smoke and heat detection.

IQ Panel 5 security touchscreen mounted on a wall in a home

IQ Panel 5 touchscreen + wireless sensors

The IQ Panel 5 touchscreen with PowerG wireless sensors — tidy installs, phone control and room to grow.

Product images courtesy of DSC and IQ Security Products (Johnson Controls).

Who we protect

Security for homes, businesses and new builds

Why Knightwatch

Why choose a local alarm company over a telecom provider?

Founded in 1988 by Adam Tolkin, Knightwatch focuses only on security. For 38 years that focus has let us offer tailored systems and responsive service at a competitive price — without locking customers into long-term contracts.

  • One of Toronto's longest-established security companies
  • Installation and service by certified, full-time Knightwatch employees
  • 24/7 monitoring with unlimited guard dispatch
  • No annual contracts — we earn your business monthly
  • Can often use your existing alarm equipment

More about Knightwatch · Local company vs. cable company

Knightwatch Alarms service van parked at a client's home
Knightwatch Alarms technician installing a window sensor in a new home

Get protected in 5 steps

  1. Contact KnightwatchCall the office or send a request. Tell us about the property and what you want protected.
  2. Free on-site evaluationA technician walks the property, checks any existing equipment and listens to your concerns.
  3. Professional installationOur own technicians install, test and demonstrate the system before they leave.
  4. 24/7 monitoringSignals go to a monitoring station staffed around the clock, with guard dispatch when required.
  5. Ongoing supportService, changes and upgrades from the same local team — with no annual contract.
Google reviews

What customers say about Knightwatch

4.9 / 5 on Google
Read all reviews on Google →
Google review

We found Knightwatch via ChatGPT when Bell sold their home monitoring business. It recommended them because they met our needs - a company with a strong reputation that would answer when we called and didn’t keep making us “upgrade” our equipment. We got so much more. This is a family business that doesn’t lock you into a contract. They earn your business monthly. I would highly recommend them.

Paul Kalra
Google review

We’ve used Knightwatch for over 20 years. Adam is a great guy to deal with, and extremely knowledgeable. We’ve always had great service with them and can’t speak highly enough of them.

George Amorim
Google review

We have been with Knightwatch for many years and can’t imagine a more professional, responsive company. Noah came to our house to troubleshoot and regular maintenance. He was a complete pleasure! He went out of his way to make sure we were 100% satisfied with the service before he left. Everybody at this company goes the extra mile to make sure customers are happy and their properties well protected.

Kiera Wilson
Google review

We had the pleasure of having Adam work on our alarm system. He is beyond professional, knowledgeable and courteous at the same time. He truly cares about his clients and will go to extra mile to ensure that his clients are satisfied with their needs. We HIGHLY recommend Knight Watch Security as the only contractor you will ever need.

Noah Nightingale
Google review

My experience with Knightwatch has only ever been excellent. They provided me with a variety of security measures and protection and I am grateful for their personalized service and approach. I would not hesitate to engage in their services if I were a prospective customer.

Ben Higgs
Google review

Had Noah from Knightwatch pre wire my new system today. Clean, professional service second to none. I highly recommend Knightwatch for both your residential or commercial security needs.

Jeff Morrison

Home and business security FAQs

What does a home security system cost in Toronto?

It depends on the size of the property, how many entry points need protecting, whether you’re taking over existing equipment, and which monitoring options you choose. The on-site evaluation and quotation are free, so you’ll get an exact price before committing. Request a quote.

Can I switch alarm companies and keep my existing equipment?

Often, yes. Many existing panels and sensors can be reprogrammed for Knightwatch monitoring; compatibility depends on the equipment and certain conditions apply. Takeovers of compatible equipment are currently free (additional parts extra). See home alarm takeovers, or switching guides for Bell & API Alarm and TELUS & ADT customers.

Do I have to sign a long-term contract?

No. Knightwatch monitoring has no annual contract — we earn your business every month.

What happens when my alarm goes off?

The signal goes to our 24/7 monitoring department. Operators follow the dispatch instructions on your account — contacting you and your emergency contacts and dispatching emergency services or a private guard when required. How monitoring works.

Wired or wireless — which alarm system is better?

Both are reliable when installed properly. Hardwired suits new builds and renovations; wireless suits finished homes. Many systems combine both. Read hardwired vs. wireless alarms.

Do security cameras need a monthly subscription?

Our camera systems record locally to a recorder on site, so viewing and playback from your phone don’t depend on a cloud subscription. Home security cameras.

Can my alarm detect fire, carbon monoxide and floods?

Yes. Monitored smoke, heat, CO, water and temperature sensors alert the monitoring station even when nobody is home. Life-safety monitoring.

Which areas does Knightwatch serve?

Toronto and the Greater Toronto Area — 29 featured service areas from Oakville to Oshawa and north to Newmarket — plus properties up to about two hours away, including cottages. See all service areas.

More questions answered

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Security guides

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