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24/7 emergency service

Heating Repair in North Jersey

North Jersey heats with a little of everything. Gas furnaces in the split-levels and newer colonials, hot-water boilers feeding baseboard in the 1950s capes, steam radiators in the pre-war two-families, and a growing number of heat pumps. Master's Plumbing repairs all of them, across Union, Essex, Bergen, Passaic, Hudson and Morris counties, and we answer the phone 24/7 when the heat is out.
Interior of a gas furnace with the panel removed for heating repair

Because our technicians are licensed plumbers as well as heating techs, a boiler that is leaking, a radiator that will not heat or a frozen baseboard loop is a normal repair for us, not a reason to send a second company. You get a diagnosis you can understand and a firm price before the repair begins.

Signs your heating system needs repair

  • No heat, or the thermostat calls and the system never starts
  • The system starts, runs for a minute and shuts off, over and over
  • Some rooms or one floor stay cold while the rest of the house is fine
  • Radiators or baseboard that are cold at the far end of the loop
  • Banging, whistling, screeching or a new rumble from the boiler or furnace
  • Water on the floor around the boiler or under a furnace
  • The gas bill jumped without a change in the weather or the thermostat
  • A burning smell, a yellow flame instead of blue, or a carbon monoxide alarm

Heating systems and repairs we handle

  • Gas furnaces

    Ignitors, flame sensors, pressure switches, inducer and blower motors, limit switches, control boards and gas valves. We test the heat exchanger for cracks on every furnace that is running strangely.

  • Hot-water boilers

    Circulator pumps, zone valves, expansion tanks, relief valves, auto-fill valves, aquastats and leaking sections on cast iron and modern condensing boilers.

  • Steam boilers

    Low-water cutoffs, pressuretrols, pigtails, sight glasses, main and radiator vents, steam traps and the near-boiler piping that decides whether a steam system runs quietly or hammers.

  • Heat pumps

    Defrost controls, reversing valves, refrigerant faults, outdoor fan motors and the auxiliary heat strips that carry the house through a cold snap.

  • Thermostats and controls

    Failed thermostats, bad low-voltage wiring, transformers, relays and smart thermostats that were never wired for the system they are controlling.

  • Zone problems

    One zone cold, one zone that never shuts off, zone valves stuck open or closed, circulators that hum but do not pump, and air trapped in the loop.

  • Radiators and baseboard

    Bleeding air, replacing failed vents and valves, freeing stuck radiator valves, and repairing leaking baseboard elements and piping.

  • Honest repair-versus-replace guidance

    When the repair bill is a large fraction of a new system, or the heat exchanger or boiler section has failed, we say so and give you a replacement price to compare.

How a heating repair call works

  1. 1

    Call and describe what you see

    We ask what the system is doing and may suggest a quick check, like the thermostat batteries, the emergency switch or the breaker, that solves it on the phone.

  2. 2

    Diagnosis at the equipment

    We test the sequence of operation from the thermostat call to the burner, measure what needs measuring and find the actual fault rather than replacing parts on a hunch.

  3. 3

    Plain explanation and a firm price

    You hear what failed, why, and what it costs to fix, by the job. If it is a replace-not-repair situation, you hear that too.

  4. 4

    Repair, test and safety check

    After the repair we run the system through a complete cycle, check combustion and venting on gas equipment, and confirm every zone is heating.

Why Master’s Plumbing

Why North Jersey homeowners call us for heating repair

  • Furnaces, hot-water boilers, steam boilers and heat pumps, all handled by one company
  • Licensed plumbers on the call, so boiler piping and radiator work is never a hand-off
  • 24/7 live answer for no-heat calls
  • Upfront by-the-job pricing before the repair starts
  • Stocked vans for the common ignitor, sensor, pump and valve failures
  • Honest advice on when a repair is worth it and when it is not

Heating Repair across North Jersey

Master’s Plumbing is based in Roselle and provides heating repair throughout Union County, Essex County, Bergen County, Passaic County, Hudson County, Morris County. Not sure if we cover your town? Call and ask, or check the full service area.

24/7 emergency line

Heating Repair emergency?

Call Master's Plumbing 24/7. A licensed technician will be dispatched with the price quoted before work starts.

Reviews

What customers say about our heating repair work

Real customers, real jobs across North Jersey.

Read what North Jersey homeowners say about us on Google.

We would rather you read reviews at the source than quotes we picked. Then call us and see for yourself.

FAQ

Heating Repair questions, answered

Should I repair or replace my heating system?
Look at three things: the age of the equipment, the cost of the repair against the cost of a new system, and whether the failure is a wear part or the core of the unit. A failed ignitor on a ten-year-old furnace is a repair. A cracked heat exchanger on a twenty-year-old furnace, or a leaking section on an old cast iron boiler, is a replacement. We give you both numbers and let you decide.
Why does my furnace turn on and off every couple of minutes?
Short cycling usually means the furnace is overheating and tripping its limit switch. The most common causes are a badly clogged filter, a failed blower motor, closed supply registers or a dirty flame sensor dropping the flame. It can also point to an oversized furnace. Turn it off and call, because repeated overheating damages the heat exchanger.
One zone in my house is cold. What is wrong?
On a hot-water system, it is usually a stuck zone valve, a dead circulator, air in the loop or a thermostat that is not calling. On a forced-air system with zone dampers, it is often a damper motor or the zone control board. We check the whole chain from thermostat to heat and fix the link that failed.
Do you repair steam heat?
Yes. Steam is common in Essex, Hudson and Union county homes, and many heating companies avoid it. We service low-water cutoffs, pressuretrols, vents, traps, radiator valves and near-boiler piping, and we know why a system is banging.
Can a smart thermostat cause heating problems?
Yes, when it is installed on a system without a common wire or on a boiler or heat pump it was not configured for. Symptoms include short cycling, a blank screen or a system that runs when it should not. We wire and configure thermostats properly for the equipment you have.
Is a carbon monoxide alarm a heating problem?
Treat it as an emergency. Leave the house, call 911, and then call us. A cracked heat exchanger, a blocked flue or a backdrafting boiler can all put carbon monoxide into the house. We find the source and do not put the equipment back into service until it is safe.

Master’s Plumbing

Need help right now?

Call Master's Plumbing any time. For non-emergency work, schedule online and we will confirm your appointment.

862-666-2155

Open 24 hours, 7 days a week · NJ Master Plumber Lic. #36BI01244200

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