ADP Security Systems Ltd - Call the Experts: 01730 261510

Alarm Response, Keyholding & Mobile Services.

Alarm Response, Keyholding & Mobile Services

Professional keyholding, alarm response, mobile patrols and void property inspections across Hampshire, Surrey, Sussex and beyond. Trusted by domestic and commercial clients since 1996.

Key-Holding & Alarm Response


What happens when the intruder alarm goes off at 3 o’clock in the morning? If you have been lucky, you may never have had to answer this question. The answer depends on a number of factors:

  • For a domestic property, would you expect a neighbour or family member to get out of bed in the middle of the night and drive to your property?
  • For commercial premises, have you considered the risks of having your own employees respond to alarm activations? Who wants the liability of sending staff into a potentially hazardous situation?
ADP Security keyholder on site

When a security company like ADP acts as a key-holder on your behalf, your staff or neighbour can relax, safe in the knowledge that they will not have to attend the premises in the event of an incident. We are certified by SSAIB and SIA, the leading certification bodies for the security sector.

How Our Keyholder & Alarm Response Service Works


ADP Security warning sign

We install and maintain wired and wireless intruder alarms across Southampton, Winchester, Basingstoke, Reading, Fareham, Portsmouth, Chichester, Worthing, and Brighton.

Our key-holder/alarm response service is activated when the alarm monitoring company notifies ADP Security of an alarm activation — we send a fully trained security officer to investigate.

When the Security Officer arrives on site, they carry out a full external patrol of the property to determine if there are any signs of a break-in, checking all doors and windows to ensure the building is secure.

They then follow our strict keyholding protocol to gain access, integrate the intruder alarm system and reset the alarm once the cause has been identified. Depending on the activation, the building owner will either be contacted or a report will be sent.

Full External Patrol & Security Check
Strict Keyholding Protocol
Alarm Reset & Incident Report
Emergency Boarding & Repairs

Mobile Security Patrols


Our mobile security patrol officers are highly effective. They have caught intruders and handed individuals straight to the Police, and act as a powerful deterrent preventing break-ins and burglaries.

Our fully trained mobile security guards will patrol your site at regular intervals through the day or night. Their first check ensures all windows and doors are locked and no intruders are present. Subsequent checks confirm there are no disturbances. Our service can include building lock-up and unlock.

ADP Security mobile patrol vehicle
Reliable & Effective Deterrent
Industrial Sites & High Value Properties
Educational Campuses & Construction Sites
Affordable & Flexible

Customer sites covered by a mobile patrol receive branded signage from ADP Security to show that your premises are protected, increasing the deterrent value of our patrol.

Coverage Area

Since our inception in 1996, we have grown our fleet of branded vehicles to undertake mobile security patrols across the South of England. Our coverage area currently includes Southampton, Fareham, Portsmouth, Brighton, Petersfield, Guildford, Basingstoke, and Reading.

Real-Time Tracking

Our security guards are as important to us as the staff and property of our clients. We have installed a state-of-the-art tracking system that enables us to monitor our Security Officers while they are patrolling your site. We also send more than one officer to an alert if needed, and patrol details are always available.

Void Property Inspections


Whether you are a property owner, a landlord between tenants, or a site manager, vacant property inspection services can provide a significant cost saving in identifying potentially critical issues.

Evaluating the presence of a hazard before it escalates into a bigger problem is particularly important in properties pending a new tenancy, where risks of fire or leaks are elevated or when the void period is likely to be extended.

Longer void periods also present a higher risk since any damage or deterioration can make a property considerably more exposed to criminal activity such as vandalism, theft, squatters and unwelcome tenants.

Vacant property inspection

What Our Inspections Include

Exterior Checks
Security integrity, intrusions, rubbish, garden maintenance, public hazards
Utility Checks
Gas, Water & Electric meter readings with photographic evidence
Interior Checks
Evidence of intruders, essential maintenance, wind & water tight
Permanent Records
A log of every property risk inspection maintained for you

Explore Our Related Services


ADP provides complete, integrated security solutions. Discover how our services work together to protect your property.

Ready to Discuss Your Security Needs?

Get your free, no-obligation quotation today

☎ 01730 261510

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