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Commercial Heat Exchanger Replacement in NYC
A cracked heat exchanger can leak carbon monoxide into your building. Com+ Mechanical inspects and replaces heat exchangers in commercial furnaces, rooftop gas units, boilers and plate-and-frame systems.
Signs of a Heat Exchanger Problem
CO alarm going off
Shut the unit down and call — this is a safety issue.
Soot or rust around the burners
Often a sign of cracking or poor combustion.
Flame wavers when the blower starts
Air from a crack can disturb the burner flame.
Unit keeps tripping the limit
Overheating stresses and cracks heat exchangers.
Poor heat transfer (plate units)
Scale or fouling between the plates.
Inspect First, Then Repair or Replace
We confirm a failure with a visual and camera inspection plus combustion testing before recommending anything. Then we give you written options: replace the heat exchanger, or replace the whole unit if that makes more sense.
What We Cover
Why It Matters
Our Simple Process
From call to comfort in 5 easy steps
Inspect
Camera, visual and combustion testing.
Report
Written findings and options.
Approve
You choose repair or replacement.
Replace
We install the part or the new unit.
Test
Combustion and CO checks before we leave.
Why Com+
Proof before repair
We show you the evidence before recommending replacement.
Commercial equipment
Furnaces, RTUs, boilers and plate units.
Honest options
Part vs whole-unit replacement, in writing.
24/7 dispatch
For no-heat and CO emergencies.
Transparent Pricing
No fees. No surprises. Just honest service.
Inspection
Confirm whether it's cracked.
- Camera inspection
- Combustion test
- Written report
Heat exchanger replacement
Replace the failed part.
- Part sourcing
- Install
- Safety test
Unit replacement
When the unit is past repair.
- Sizing
- Removal & install
- Start-up
Final pricing is confirmed in writing after inspection.
Own a Commercial Property?
Business+ plans start at $499/year — includes 2 rtu tune-ups, 15% off all services, and priority scheduling.
Equipment & Brands We Service
Factory-trained technicians for all major HVAC manufacturers
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Don't see your brand? We service all major manufacturers! Call us to confirm.
Serving the New York City Metro Area
Commercial HVAC service for buildings across the five boroughs and nearby counties
Frequently Asked Questions
Get answers to common questions about our services
How do I know if my heat exchanger is cracked?
Warning signs include CO alarms, soot, rust and a flame that changes when the blower starts. Only an inspection with camera and combustion testing confirms it.
Is it worth replacing just the heat exchanger?
On newer units with parts available and other components in good shape, often yes. On older units, replacing the whole furnace or RTU is usually the better value. We give you both options.
Is a cracked heat exchanger dangerous?
It can be. A crack can let carbon monoxide into the airstream, so the unit should be shut down until it's inspected.
Do you work on boiler and plate heat exchangers too?
Yes. We service boiler heat exchangers and clean and regasket plate-and-frame heat exchangers in commercial buildings.
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EPA-certified · factory-trained · fully insured
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Equipment, Repair & Maintenance
- Commercial HVAC Repair
- Commercial HVAC Installation
- Commercial HVAC Replacement
- Commercial Water Heater Repair
- Air Handler Installation
- Rooftop Unit (RTU) Repair
- VRF / VRV Installation
- Commercial Heating Service
- Commercial Boiler Repair
- Commercial Chiller Repair
- PTAC Repair & Replacement
- Cooling Tower Service
- Commercial AC Repair
- Air Handler Replacement
- Cooling Tower Maintenance
- Walk-In Cooler & Freezer Repair
- Building Automation (BAS)
- Preventive Maintenance
- HVAC Service Agreements
- 24/7 Emergency HVAC