The Definitive Authority on Automatic Door Repair

Engineering Excellence in Door Automation

At Automatic Door Repair UK, we treat automatic door repair as a precise engineering discipline. An automatic door is a complex integration of high-torque brushless DC motors, microprocessor logic controllers, and sensitive safety monitoring devices. When these systems fail, "patch-up" repairs are insufficient.

We provide a forensic level of service. If a drive belt has snapped, we investigate why. Is the floor guide misaligned, causing excessive drag? Is the carriage wheel bearing seized? By addressing the root mechanical cause rather than just the symptom, we extend the operational lifespan of your asset by years.

Motor & Gearbox Refurbishment

The heart of any automatic door is the drive unit. We specialise in the replacement and refurbishment of heavy-duty gearboxes found in Record DFA 127 and Dorma ES 200 units. We check for internal nylon gear stripping, encoder signal degradation, and electromagnetic brake wear. Our supply chain allows us to source OEM parts for discontinued models, preventing the need for costly full replacements.

Sensor Technology & Activation Logic

Modern entrance systems rely on microwave radar for activation and active infrared for safety. A common failure we resolve is "ghosting"—where a door cycles open without pedestrians present. This is often caused by sensor drift, electrical interference, or loose connections in the wiring loom.

We upgrade outdated "activation only" sensors to modern combined monitored sensors. These devices constantly communicate with the main processor; if the sensor fails, the door fails safe (stays open), ensuring you remain compliant with European safety directives.

Understanding Your Legal Obligations

As a building manager, you are legally responsible for the safety of your automatic doors under the Machinery Directive and BS EN 16005. A poorly maintained door that strikes a pedestrian can lead to severe injury claims and prosecution.

Our engineers act as your compliance partners. During every visit, we perform a 7-Point Safety Force Test using calibrated gauges to ensure the kinetic energy of the moving door does not exceed 1.69 Joules (for low energy) or that safety sensors create a verified "safety box" around the threshold. If your doors are non-compliant, we provide immediate, actionable reports to bring them up to standard.