Your property.
Protected.
Around the clock.
Defender Security Services Inc. provides licensed alarm response and mobile patrol in Cornwall, Ottawa, and surrounding communities — with a 15-minute response commitment and real officers every time.
We Handle
What we provide
Every service is staffed by licensed, insured officers dispatched from Cornwall — available around the clock, 365 days a year.
Alarm Response
When your alarm triggers, we dispatch a licensed officer immediately — no waiting on a call center. We assess the property, secure any breach, and report back to you fast.
Mobile Patrol
On-request patrol of your property with GPS-verified checkpoints and a written report delivered after each visit. Available for commercial and residential sites.
Keyholding & Lock-Up
We hold keys and access codes so your staff never have to respond to an alarm call in the middle of the night. We open, close, and secure on your schedule.
Vacant Property Checks
Routine inspections of vacant or seasonal properties — with photographic confirmation of condition after every check, sent directly to you.
Static Site Guarding
A uniformed officer stationed on-site for events, construction, or elevated-risk periods. Coordinated through the same dispatch network as all our services.
Security Risk Assessment
A complimentary walkthrough of your property to identify vulnerabilities and recommend coverage that matches your actual risk — not a generic package.
From alarm to all-clear
This is what happens the moment we receive a call — every time, no exceptions.
Call received
Your alarm triggers or you contact our dispatch line. Our control team picks up immediately — 24 hours a day.
Officer dispatched
A licensed officer is dispatched from Cornwall with a target arrival time of under 15 minutes.
On-site assessment
We inspect the property, secure any breach, and contact police or emergency services if needed.
You get a report
A timestamped incident report with photos is sent to you — not the next morning, but that same call.
Cornwall, Ottawa & nearby towns
Our unit is based in Cornwall, ON, positioned to serve Eastern Ontario efficiently. We actively take patrol requests and alarm calls from the following areas:
- Cornwall, ON — Primary base, fastest response
- Ottawa, ON — Extended coverage area
- South Stormont & South Glengarry
- Morrisburg, Ingleside & Long Sault
- Surrounding communities — contact us to confirm
Why clients choose Defender
"Fast, professional, and actually shows up. When our alarm triggered at 2 a.m., they were on site in under 15 minutes. That's what matters."
"Having a keyholder service means my staff don't get called out at odd hours anymore. Defender handles it every time, no complaints."
"They did a full risk assessment before we signed anything. Straight advice, no pressure. We felt like they actually cared about our property."
Request a quote or ask us anything
Fill out the form and we'll get back to you promptly. For alarm emergencies, email us directly.
Based in
Cornwall, Ontario, Canada
Website
dsecure.ca
Response
Quote requests answered within 1 business day