HVAC Controls Maintenance & Fault Resolution

Practical maintenance for heating, ventilation and air‑conditioning control systems

We maintain and support HVAC control systems in commercial buildings, ensuring heating, cooling, and ventilation operate efficiently and reliably. Our focus is on control performance — not mechanical plant — helping systems respond correctly to occupancy, schedules, and environmental conditions.

What we maintain

• HVAC control panels and field devices
• Sensors, actuators, and control strategies
• Time schedules and interlocks
• Alarm thresholds and fault reporting
• Integration with BMS platforms

We work with both modern and legacy HVAC control installations.

Fault resolution done properly

When faults occur, we focus on identifying root causes rather than repeatedly resetting symptoms. This includes reviewing control logic, checking sensor inputs, and validating outputs against real system behaviour.

Clear explanations are provided so site teams understand what has changed and why.

Typical issues we resolve

• Systems running continuously with no clear reason
• Conflicting heating and cooling demands
• Poor temperature control or comfort complaints
• Unreliable sensors or outdated strategies
• Repeated callouts for the same faults

Supporting upgrades and changes

As buildings change, HVAC control requirements often change with them. We support system upgrades, refurbishments, and modernisation projects, ensuring existing systems are adapted sensibly rather than replaced unnecessarily.

Clear communication, no surprises

We explain findings in plain English, provide clear recommendations, and only carry out work that is agreed and appropriate for the site.