Air Conditioning & HVAC BMS Controls

Airflow that answers to the BMS, not a mind of its own.

Commercial air conditioning and HVAC BMS integration, zone control and fault diagnostics — designed, installed and commissioned by BMS engineers.

24/7 Emergency — Same-Day Callout
SUPPLY ZONE
AC playing up right now?

Unit tripping. Zone won't hold temperature.

If your AC has stopped responding to the BMS, a zone won't hold its setpoint, or a unit keeps tripping on fault — that's exactly what we fix. Same-day callout, 24/7.

→

AC Not Responding to BMS

Communications fault between controller and unit, failed sensor reading, or a points mapping issue after an update.

→

Zone Too Hot / Too Cold

Miscalibrated zone sensor, a stuck damper actuator, or a control strategy that needs re-tuning for the space.

→

Unit Tripping on Fault Code

Recurring fault codes traced back to root cause — refrigerant, sensor or communications — not just reset and left.

→

VRF/VRV System Fault

Diagnostics across VRF and VRV systems tied into Trend, Tridium, Honeywell, EcoStruxure or Metasys.

What we install & maintain

HVAC systems. Mapped, tuned, commissioned.

Every install integrates with your existing BMS head-end — Trend, Tridium/Niagara, Honeywell, Schneider EcoStruxure or Johnson Controls Metasys.

01

HVAC & AC BMS Integration

Integrate new and existing AC/HVAC plant into a building's BMS head-end for centralised monitoring and control.

02

VRF / VRV System Controls

BMS-level control, monitoring and fault diagnostics for VRF and VRV air conditioning systems.

03

Zone Temperature Control

Zone sensor calibration, control strategy tuning and setpoint troubleshooting for spaces that won't hold temperature.

04

Airflow & Damper Control

Damper actuator diagnostics, airflow balancing and duct-level control system repair.

05

AC Fault Diagnostics & Repair

Fault history tracing, root-cause diagnostics and repair for recurring AC trip codes.

06

HVAC Compliance & Testing

Performance testing and compliance support for commercial HVAC systems and their BMS integration.

Common questions

HVAC BMS, explained.

Who fixes commercial air conditioning BMS faults?

Airhandl diagnoses and repairs air conditioning faults at the BMS level, including sensor, actuator and controller issues, for commercial and industrial buildings across the UK. 24/7 emergency, same-day callout available.

Why has my aircon stopped responding to the BMS?

Usually a communications fault between the BMS controller and the AC unit's interface board, a failed sensor reading, or a points mapping issue after a firmware update. We diagnose and restore control on-site.

Can an existing BMS control multiple AC units centrally?

Yes. We integrate multiple AC and VRF/VRV units into a single BMS head-end, giving centralised scheduling, zone control and alarm reporting from one interface.

Why is my office too hot or too cold despite the thermostat setting?

Most commonly a miscalibrated zone sensor, a stuck damper actuator, or a control strategy that hasn't been re-tuned since the space layout changed. We test and recalibrate the zone.

How much does commercial HVAC BMS repair cost?

Cost depends on the fault type, the number of zones affected and the existing BMS platform. We provide a fixed quote after a site survey.

Why does my AC unit keep tripping on fault code?

Recurring fault codes usually point to a refrigerant, sensor or communications issue rather than a one-off event. We read the fault history and trace it back to root cause rather than just resetting it.

Do you work on VRF and VRV systems tied into a BMS?

Yes. We work on VRF and VRV systems integrated with Trend, Tridium/Niagara, Honeywell, Schneider EcoStruxure and Johnson Controls Metasys, regardless of who installed the original system.

Can you integrate a new AC unit into an existing BMS head-end?

Yes. We commission new AC and HVAC plant into an existing BMS without needing to replace the head-end, mapping points and setting up schedules and alarms to match the rest of the building.

Request a callout

Tell us what the system is doing.

  1. An engineer calls you backThey talk through what the system is doing and what's been tried.
  2. We diagnoseRemotely where we can, or we book a site visit.
  3. You get a fixed quoteAgreed with you before any work starts.

Emergency requests get a call back straight away, 24/7. Everything else, the same working day.

Prefer to talk? Call 020 8138 1031

How urgent is it?

We only use these details to respond to your request.