Commercial Heating Repair in South Jersey: Rooftop Units, Furnaces, Boilers and Unit Heaters
The short answer
When a store, restaurant or office in South Jersey loses heat, the cause is usually in the ignition and flame safety circuit, the blower or inducer, the gas valve, or the controls. Rooftop units, furnaces, boilers and unit heaters all share those weak points. Gesser Services repairs commercial heating equipment from Atlantic City to every town within 50 miles, and urgent visits are available based on technician availability.
- Atlantic City + 50 miles across South Jersey
- A written quote before any repair
- Nothing is repaired without your approval
What to check first
Thermostat and schedule
Commercial thermostats run schedules. Check the mode, the setpoint and any override.
Power and switches
Check the breaker and the service switch at the unit. Rooftop units have one on the roof.
Filters
Clogged filters trip high-limits and shut the burner off. Replace them if they are packed.
Codes and lights
Write down the blinking code on the control board if you can see it safely.
Is this your problem?
Pick what you see to read what it usually means.
Equipment we repair
- Rooftop units (RTUs) with gas heat or heat pumps, on stores, restaurants and offices
- Gas furnaces in back rooms, ceilings and closets
- Boilers for hot water and baseboard heat
- Unit heaters in garages, warehouses and kitchens
- Makeup air units that temper the air a kitchen hood pulls out
Why commercial heat stops
The burner will not light or stay lit
A cracked or weak igniter, a dirty flame sensor, a failed inducer or pressure switch, or a gas valve. After a few failed tries, the control locks out.
Heat comes and goes
A high-limit trips because airflow is low: dirty filters, a slipping belt, a weak blower motor or closed dampers. On heat pumps, a defrost problem.
Some areas stay cold
Airflow and duct problems, a zone damper stuck, or a system that is too small for the space after a remodel.
It runs but the air is cool
Only part of a multi-stage burner firing, a heat exchanger that is not getting gas, or an economizer letting in too much outside air.
How an urgent heating visit works
Call (609) 826-1174 and describe the equipment and what it is doing. Emergency service is available based on technician availability; see emergency service. On site, the technician tests the ignition sequence, safeties, gas supply, blower and controls, explains the cause and gives you a written quote. Nothing is repaired without your approval.
For planned work, book a visit online or see AC and heating repair.
Fewer heating calls in winter
- A fall check: burners cleaned, flame sensor and igniter tested, heat exchanger inspected, belts and filters replaced.
- Rooftop units: clear debris around them and make sure access to the roof is easy for a technician.
- Kitchens: keep makeup air and hood interlocks working, or the heat and the cooking line both stop.
- A maintenance plan keeps the check on the calendar for every unit.
Repair or replace?
| What to look at | Repair usually makes sense when | Replacement is worth pricing when |
|---|---|---|
| The problem | A capacitor, a contactor, a fan motor, an igniter or a sensor. | A failed compressor or heat exchanger on an older system. |
| The system | It heated and cooled well until this problem. | Rising bills, rooms that never reach temperature and repeated repairs. |
| The refrigerant | It uses a refrigerant that is still made today. | It uses R-22, which is no longer produced, so a recharge is expensive. |
A technician measures the system and gives you a written quote, so you can compare repairing with replacing before you decide.
Brands we work on
Gesser Services is an independent service company and is not affiliated with these manufacturers. Brand names and logos belong to their owners.
Questions people ask
Do you offer emergency heat repair in South Jersey?
Yes. Emergency service is available based on technician availability. Call (609) 826-1174 and describe what the system is doing.
What commercial heating systems do you repair?
Rooftop units, gas furnaces, boilers, unit heaters and makeup air units in stores, restaurants, offices and warehouses.
Why does my rooftop unit keep shutting off on heat?
Most often a high-limit tripping from low airflow, a flame sensor losing the flame, or an inducer or pressure switch problem.
Will I get a price before the repair?
Yes. The technician finds the cause first and gives you a written quote. Nothing is repaired without your approval.
Where we work
Atlantic City and every town within 50 miles, homes and businesses.
- Atlantic City
- Ventnor City
- Brigantine
- Margate City
- Pleasantville
- Absecon
- Longport
- Northfield
- Linwood
- Smithville
- Egg Harbor Township
- Somers Point
- Ocean City
- Pomona
- Galloway
- Port Republic
- Mystic Island
- Marmora
- New Gretna
- Beach Haven
- Egg Harbor City
- Tuckerton
- Estell Manor
- Mays Landing
And 95 more towns. See the service area