Packaged rooftop units do the heating and cooling for a large share of commercial buildings in northern New Jersey: strip retail, restaurants, offices, medical suites and warehouses. We service, repair, replace and install them, including the curb adapters, crane coordination, electrical and permits that a changeout involves.
Rooftop work is unforgiving of shortcuts. Heights is licensed and insured under NJ HVAC Lic. #197400, our mechanical engineer runs the load calculations for replacements, and our electrical engineer covers the wiring side so the whole project stays with one contractor.
Out Of Sight, Until It Stops Working
Rooftop units get ignored because nobody sees them. Coils load up with debris, belts wear, economizer dampers seize, curbs and flashing leak, and condensate drains clog. The first sign for most building owners is a comfort complaint, a water stain on a ceiling tile, or a unit that quits on the hottest or coldest day of the year.
Replacement brings its own complications. You are dealing with roof access, rigging, a crane, a curb that may not match the new unit, existing electrical and gas connections, roofing work around the curb and a permit. Handled poorly, a one-day changeout turns into a week of your building being a construction zone.
What Our Rooftop HVAC Unit Service Includes
On maintenance and repair visits we clean condenser and evaporator coils, check and replace filters and belts, test compressors, contactors, capacitors and control circuits, verify refrigerant charge, inspect the heating section and flue, exercise the economizer and dampers, clear condensate drains, and check curb condition and flashing for leaks. Most rooftop failures are preventable, which is why regular service pays for itself.
For replacement we calculate the load rather than matching the old nameplate, specify the unit, fabricate or order a curb adapter where the footprint differs, coordinate the crane and rigging, disconnect and remove the old unit, set and connect the new one, complete gas, electrical and controls, seal the curb properly, and pull permits and meet the inspector. Then we commission it and verify heating and cooling performance.
Signs Your Rooftop Unit Needs Service
- Water stains on ceiling tiles below the unit
- Unit tripping breakers or locking out repeatedly
- Noticeable drop in airflow at the registers
- Heating or cooling section no longer keeping up
- Loud rattling, squealing or grinding on the roof
- Economizer stuck open or closed year round
- Rust or standing water around the curb
- Unit is 15 years old with rising repair costs
Noticing any of these? Call (201) 245-7772 or request service online. Same-day appointments across North Jersey.
Our Rooftop Unit Process
Roof survey and equipment inventory
We document the units, their age, model data, curb sizes, electrical service and condition of the surrounding roof.
Diagnose or size the replacement
For repairs we isolate the mechanical, electrical or control fault. For changeouts our engineer calculates the load for the space served.
Plan the logistics
Crane placement, roof access, curb adapters, permits and the timing that keeps your business open all get worked out before the day.
Perform the work
Repair, or remove and set the new unit, connect gas, electrical and controls, seal and flash the curb, and clear the roof of debris.
Commission and document
We test heating and cooling operation, verify charge and airflow, complete the inspection, and hand over the documentation.
Rooftop HVAC Services We Offer
Rooftop unit repair
Compressors, motors, belts, contactors, boards, gas valves and igniters, diagnosed properly rather than replaced on a hunch.
Full unit changeout
Complete replacement including crane set, rigging, curb adapter, gas and electrical connections, permits and commissioning.
Curb adapters and roof coordination
When the new unit footprint differs from the old curb, we handle the adapter and make sure the curb is sealed and flashed correctly.
Scheduled rooftop maintenance
Spring and fall visits covering coils, belts, filters, drains, economizers and electrical, which is what keeps these units alive.
Economizer and controls service
Damper, actuator and sensor repair so the unit uses outside air when it should, which has a direct effect on your energy bill.
Multi-unit building programs
For properties running several rooftop units, we track equipment by location and schedule service across the whole roof at once.
Why Choose Heights for Rooftop HVAC Units
- Family Owned & Operated: A family business means more personalized service than you get from big chain providers.
- 56 Years of Industry Experience: Over 56 years of combined industry experience across plumbing, heating and cooling.
- Licensed & Insured: NJ HVAC Lic. #197400 and NJ Plumbing Lic. #1221100. Fully insured for residential and commercial work.
- Engineers On Staff: Our own mechanical and electrical engineers design systems and handle wiring, so you don’t need a second contractor.
- Same-Day Service: Schedule with us and we’ll provide service within 24 hours, arriving on time as scheduled.
- No Worries Pricing: Straightforward pricing with no surprise fees or up-charges. You know what you’re paying before we start.
Rooftop HVAC Units Across Bergen, Essex & North Jersey
We provide rooftop hvac units from our offices in Fair Lawn and Hillsdale to every municipality in Bergen County and Essex County, including:
We also serve Sussex County, Passaic County, Warren County, Morris County, Hudson County, Union County, Hunterdon County, Somerset County, Middlesex County, Mercer County.
Rooftop HVAC Units FAQs
How often should rooftop units be serviced?
Twice a year, before cooling season and before heating season, because these units run in both modes and sit exposed to the weather year round.
Do you handle the crane for a rooftop replacement?
Yes. We coordinate the crane, rigging and roof access as part of the project, along with the curb adapter, permits and electrical.
Can a changeout be done without closing the business?
Usually. Most straightforward changeouts happen in a day, and we schedule the crane and the disruptive portions around your operating hours where possible.
Should I repair or replace an older rooftop unit?
We look at age, refrigerant type, repair history and the cost of the fix, then show you the comparison. Units past 15 years with major component failures often favor replacement.
Can you take over service on units another contractor installed?
Yes. We service rooftop equipment regardless of who installed it, and we start by documenting what is actually on your roof.