Commercial & Industrial HVAC | Lombard, IL
Rooftop Unit (RTU) and Commercial Boiler Service and Replacement
Commercial and industrial rooftop unit and boiler repair, maintenance, and replacement for facilities in Chicagoland, Northern Illinois & Indiana.
What this covers
Scope
- We service, repair, and replace packaged commercial rooftop units handling heating, cooling, and ventilation for occupied buildings and plants.
- We troubleshoot, repair, and replace commercial and industrial boilers, burners, pumps, safety controls, and heating distribution components.
- We coordinate rooftop unit changeouts including curb transitions, ductwork connections, gas piping, power wiring, and BAS integration.
- We perform pre-season heating and cooling inspections to catch cracked heat exchangers, failing igniters, and worn blower assemblies early.
Problems we solve
- Failed RTU heat exchangers and leaking boiler sections force safety lockouts that leave occupied buildings and warehouses without heat.
- Stuck economizer dampers, failed compressors, and airflow imbalances generate comfort complaints and uneven zone temperatures.
- Nuisance burner trips, faulty igniters, and erratic heating-loop temperatures disrupt facility operations during Midwest winter cold snaps.
- Obsolete unit footprints and mismatched roof curbs stall replacement projects when standard catalog adapters do not fit.
Service modes
How we work it
24/7 emergency
Crews respond day and night to restore failed rooftop units and locked-out boilers when extreme weather threatens tenant occupancy, inventory, or plant piping.
Planned work
We coordinate crane lifts, boiler room rigging, piping tie-ins, and startup testing around facility schedules to replace end-of-life heating and cooling equipment cleanly.
Maintenance
Scheduled contract visits cover burner and heat exchanger inspection, coil cleaning, belt and bearing service, economizer testing, and seasonal changeover.
In the shop
Our in-house fabrication shop builds custom ductwork transitions, plenums, and structural adapters so replacement RTUs and boiler flues tie cleanly into existing infrastructure.
FAQ
Questions facility managers ask
How do you minimize building disruption during a rooftop unit replacement?
Replacement units are matched to the existing roof curb, ductwork drops, electrical feeds, and control wiring, with custom transitions built in our shop when footprints differ. Crews rig the old unit off, set the replacement, and complete tie-ins within a planned window.
What determines whether a commercial boiler or RTU should be repaired or replaced?
We assess repair against replacement for the heat exchanger or pressure vessel and the equipment's failure history. When repair no longer makes sense, we scope a direct replacement.
Can our new rooftop units and boilers tie into our existing building automation system?
Yes, our technicians handle both mechanical installation and HVAC controls integration so replacement RTUs and boilers communicate properly with your BAS. We verify staging, schedules, safeties, and alarm points before turning the system back over to facility staff.
Talk to us about Rooftop Units & Boilers
Scheduled work, maintenance contracts, custom fabrication or an outage right now.