Need a Burglar Alarm install and repair in Dartford and Bexleyheath?

Don’t compromise your homes security – trust our team for your new burglar alarm installation or repair in Dartford, Bexleyheath and Crayford.


Burglar and Entry System Alarm Repairs in Dartford

Repairing a burglar alarm in Dartford, Bexleyheath or Crayford, requires a systematic approach to ensure the system functions correctly and provides the necessary security. Dartford, being a town with a mix of residential and commercial properties, sees significant demand for reliable security systems. Here’s a comprehensive guide to addressing common issues and repairing a burglar alarm in this area or contacting us for help.

Understanding the Basics of Burglar Alarms

Burglar alarms are designed to detect unauthorized entry into a building or area. They typically consist of sensors, a control panel, an alarm sounder, and, in many cases, a connection to a monitoring service. The sensors can be of various types, including motion detectors, door/window contacts, glass break detectors, and vibration sensors.


Common Issues with Burglar Alarms

Several issues can affect the performance of a burglar alarm:

  1. False Alarms: These can be caused by faulty sensors, low battery power, or environmental factors like pets or drafts.
  2. Battery Problems: Batteries in sensors and control panels can degrade over time, leading to malfunctions.
  3. Wiring Issues: Loose or damaged wiring can interrupt the communication between sensors and the control panel.
  4. Sensor Misalignment: Door/window sensors can become misaligned, leading to the system not detecting breaches correctly.
  5. Outdated Software: Some systems require periodic updates to their software to function optimally.

Steps to Repair a Burglar Alarm

1. Initial Assessment

Begin by identifying the nature of the problem. Check the control panel for any error messages or alerts that could indicate where the issue lies. Most modern systems provide diagnostic codes that help pinpoint the problem.

2. Power Supply Check

Ensure the system is receiving power. Check the main control panel and all sensors for power indicators. Replace batteries if necessary and verify that the power supply to the control panel is uninterrupted.

3. Inspect and Test Sensors

Check each sensor individually:

  • Motion Detectors: Ensure they are clean and free from obstructions. Test their response by moving within their range.
  • Door/Window Contacts: Verify that the magnets and sensors are aligned correctly and the contacts are clean.
  • Glass Break Detectors: Test these using a glass break simulator if available.

4. Check the Wiring

Only inspect all wiring for signs of wear and tear if you have isolated the electrical circuit. A visual inspection could show a problem. Loose connections or frayed wires can cause intermittent failures. Should you need expert assistance contact us immediately.

5. Software Update

If the system allows, check for firmware or software updates. Manufacturers often release updates to fix bugs and improve performance. Follow the manufacturer’s instructions to update the system or contact us to take care of this for you.

6. Reset and Reconfigure

Sometimes, a system reset is required to clear any errors. Follow the manufacturer’s guidelines to reset the system and reconfigure settings. This often involves entering a security code and setting up the sensors again. Need professional help with this aspect then contact us.

7. Professional Help

If the above steps do not resolve the issue, it’s going to be necessary to contact a professional alarm company like us at Medway Alarms. We have been serving the Dartford, Bexleyheath and Crayford areas for many years. A few years ago we were Bellcam Security so we know many of the existing alarm installations well and can advise and assist when needed. We offer repair services and have the tools and expertise to diagnose and fix more complex problems.

Preventive Maintenance

To avoid future issues, regular maintenance is crucial. Schedule periodic checks of the system, including battery replacements and sensor cleaning. Speak to us about a maintenance contract that include regular inspections and updates.


As an alarms company Medway Alarms we provide a free quote and a comprehensive installation service that includes testing the completed system.

24/7 Call out

We are available 24/7 for issues with your house alarm system. Perhaps it will not reset or it has just malfunctioned completely?

Your Local Alarms COmpany

As your local Security Systems company, we are able to attend your home or property within minutes


  • Free Quotes for all work. There is no obligation on your part and no hard selling. We want you to understand the system you may purchase.
  • 24/7 Emergency Callout
  • Extensive range of Burglar Alarms. We fit the right alarm for your property
  • We also offer fire protection systems in Dartford, Crayford and Bexleyheath.
  • Our services are for both domestic and commercial business. Contact us today to arrange an appointment