Bring in fresh outdoor air without paying to heat or cool all of it. Com+ Mechanical installs, repairs and maintains commercial energy recovery ventilators for offices, schools, multifamily and healthcare buildings across NYC and Long Island.
Low outdoor airflow from clogged filters, a failed fan or a stuck damper.
A dirty or stalled energy wheel or core that isn't recovering heat.
Worn bearings, loose belts or an unbalanced wheel.
Defrost controls not working in cold weather.
Electrical, controls or building automation faults.
An ERV swaps stale indoor air for fresh outdoor air and moves heat and moisture between the two airstreams, so your heating and cooling equipment works less. We size and install new units, add ERVs to existing systems, and service the wheels, cores, fans, filters and controls on units already in place.
From call to comfort in 5 easy steps
We review your building, ventilation needs and existing equipment.
We size the unit and plan ductwork and controls.
You get scope and options in writing.
Our crew installs or repairs the unit.
We confirm airflow and controls work as designed.
We work on commercial and multifamily buildings.
We tie the ERV into your heating, cooling and controls.
Options and pricing in writing before work starts.
Maintenance plans to keep the unit recovering energy.
No fees. No surprises. Just honest service.
Fix a unit that isn't running right.
Design and install a new ERV.
Keep it clean and efficient.
Final pricing is confirmed in writing after a site visit.
Business+ plans start at $499/year — includes 2 rtu tune-ups, 15% off all services, and priority scheduling.
Factory-trained technicians for all major HVAC manufacturers









Don't see your brand? We service all major manufacturers! Call us to confirm.
Commercial HVAC service for buildings across the five boroughs and nearby counties
Get answers to common questions about our services
An ERV brings fresh outdoor air into a building and exhausts stale air, transferring heat and moisture between the two airstreams to cut heating and cooling energy.
Both recover heat. An ERV also transfers moisture, which helps in humid summers. We recommend the right one for your building.
Often, yes. ERVs can be added to rooftop units, VRF systems and air handlers. We check space, ductwork and controls first.
Filters usually need changing every few months, and wheels or cores should be inspected and cleaned at least once a year.
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EPA-certified · factory-trained · fully insured
Our businesses' top picks for heating, cooling & air quality
Equipment services, industry expertise, NYC compliance, and the metro areas we cover.