Commercial & Industrial HVAC | Lombard, IL
HVAC Controls and Building Automation Systems
Commercial and industrial HVAC controls and building automation system service, integration, and retrofits in Chicagoland, Northern Illinois & Indiana.
What this covers
Scope
- We install, troubleshoot, and upgrade HVAC controls and building automation systems for commercial buildings and industrial plants.
- We commission equipment sequences for rooftop units, chillers, booster chilling loops, boilers, exhaust systems, and refrigeration.
- We diagnose and replace failed sensors, actuators, control valves, damper linkages, and field controllers causing erratic mechanical behavior.
- We configure occupancy schedules, setpoint resets, trend logging, and equipment fault alarms so facility managers can operate plants predictably.
Problems we solve
- Miscalibrated sensors, failed actuators, and overridden control loops cause simultaneous heating and cooling or rapid equipment short-cycling.
- Missing alarm visibility lets chillers, boilers, or refrigeration systems trip offline before maintenance staff notice temperature drift.
- Split responsibility between separate mechanical and controls vendors leaves critical HVAC equipment stranded in manual override.
- Drifting setpoints and poorly tuned sequences create comfort complaints in occupied spaces and unstable temperatures in process zones.
Service modes
How we work it
24/7 emergency
Technicians troubleshoot control lockouts, failed safeties, and unresponsive actuators around the clock when automation faults shut down essential heating, cooling, or process equipment.
Planned work
We cut over BAS retrofits and controller upgrades zone by zone or during scheduled outages so occupied buildings and industrial lines stay operational.
Maintenance
Preventive maintenance contracts verify sensor calibration, damper and valve stroke, safety interlocks, and seasonal control schedules alongside mechanical service.
In the shop
When our shop builds custom chillers or booster chilling systems, we coordinate the controls so the build integrates cleanly on site.
FAQ
Questions facility managers ask
Why use a mechanical HVAC contractor for building automation and controls work?
Control complaints often stem from underlying mechanical issues such as seized valves, binding dampers, low airflow, or fouled heat exchangers rather than software logic alone. Having one contractor handle both the mechanical hardware and the BAS controls means one team owns the whole loop.
Can you integrate newly retrofitted chillers, boilers, or RTUs into our existing controls?
Yes, we tie replacement mechanical equipment into facility control systems during retrofits and new installations. We verify startup sequences, staging, safeties, and alarm reporting as part of commissioning.
What happens when a critical system is stuck in manual override or failing to hold setpoint?
Our technicians trace the loop end to end, checking sensors, actuators, valve and damper travel, and controller logic alongside the mechanical equipment itself. Once the root fault is corrected, we restore automatic operation and confirm stable control under actual load.
Talk to us about Controls & BAS
Scheduled work, maintenance contracts, custom fabrication or an outage right now.