A house that stays cold with the thermostat turned up, a radiator that knocks like a hammer, or a puddle under the boiler are the usual reasons people search for a boiler repair man. Boiler repair means finding why the system is not moving heat, whether the cause is pressure, a pump, a valve, a leak or a safety lockout, and fixing the plumbing side of it.
Our licensed plumbers work on hot water and steam boilers and the piping around them. We also tell you plainly when a problem belongs to another trade, so you do not pay twice for the same diagnosis.
Gas smell or carbon monoxide alarm: act first
If you smell gas, leave the building and call the gas utility or 911 from outside before you call a plumber. Do not touch switches or relight anything. If a carbon monoxide alarm sounds, get everyone outside into fresh air and call 911. Do not go back in to reset the alarm or check the boiler.
Both situations come before heat. A cold house is uncomfortable, but a gas or carbon monoxide hazard is not something to troubleshoot yourself.
Reading the symptoms: no heat, low pressure, noise, leaks
The symptom narrows the field before we open a panel.
No heat at all
Common causes include a lockout, no fuel, a tripped switch, a dead circulator or a failed thermostat circuit.
Pressure drops or climbs
Low pressure points to a leak or a failed fill valve. High pressure points to a waterlogged expansion tank or an overfeeding fill.
Short cycling
A boiler that fires and shuts off over and over may be oversized, dirty or running against a bad pressure control.
Banging or gurgling pipes
Trapped air, scale or sludge can make baseboard and radiators noisy, and low water in a steam boiler can cause hammer.
Water around the boiler
Drips from a relief valve, circulator flange or fitting each tell a different story. A tank leak is a replacement matter.
Hot water, steam and baseboard: what fails where
System type changes what we check first.
| System | Typical complaint | First checks |
|---|---|---|
| Hot water radiators | Cold upper floors, noise | Air in loops, circulator, zone valves. |
| Baseboard hot water | One zone cold | Zone valve, thermostat, pump flow. |
| Steam radiators | Banging, uneven heat | Water level, vents, pitch of pipes. |
| Combination boiler | Heat works, hot water does not | Diverter, flow sensor, scale. |
Plumbing covers the water side, the pumps, valves and piping. Burner and control work is where the limits come in, covered below.
Tank heater trouble too?
Hot water that runs cold may be a heater fault, not the boiler.
Older houses in Ocean Grove and Asbury Park
Ocean Grove has a National Register district with Victorian wood-frame houses from the 1870s to the 1920s, and Asbury Park also has Victorian-era homes. Older houses of that kind may have heating systems that were converted or patched over decades, with mixed pipe sizes and radiators of different ages.
The payoff is simple. If your boiler serves an older multi-zone house, expect us to trace piping and valves before judging the boiler. A cold room can come from a pipe in the wall, not the boiler. We do not assume every old system is failing, and we do not push replacement when a part will do.
How we diagnose a boiler that will not heat
We work from the outside in, so we do not swap parts that were fine.
Check the basics
Thermostat call, power switch, fuel supply and the pressure gauge reading come first.
Look for lockout
We note error codes or reset lights, then find out why the safety tripped before resetting.
Test circulation
A running circulator pump and open zone valves move water. We feel pipes and check amp draw if needed.
Inspect pressure parts
Fill valve, relief valve and expansion tank are checked for leaks, air charge and correct pressure.
Report and price
You get the finding, the plumbing fix and a clear price before work starts.
What we will and will not diagnose
We handle boiler plumbing: leaks, pressure, expansion tanks, circulators, zone valves, air elimination, fill and relief valves, and distribution piping. We can also check whether a boiler is running safely from a water-side view.
Oil burner service, burner nozzles, oil tank and line work, and electrical control boards may need a separate heating contractor or an electrician. If we find that kind of fault, we say so, document what we saw and help you hand it off. A suspected oil leak is also not a plumbing repair, so contact your fuel supplier.
Safe checks before you call
These take a few minutes and give us useful information.
- Confirm the thermostat is set to heat and is above room temperature.
- Check that the boiler's power switch is on and the breaker has not tripped.
- Read the pressure gauge and write down the number when cold.
- Note any error code, flashing light or reset button state, but do not press reset repeatedly.
- Look for water around the boiler and photograph it.
- Bleed a radiator only if you know how, and never near a gas smell or hot steam.
- Keep paper towels and a bucket under any drip, and keep children away.
Expansion tank, circulator pump and zone valves
These three parts cause a large share of service calls. A waterlogged expansion tank lets pressure spike and forces the relief valve to open. A tired circulator hums but moves little water. A zone valve with a failed motor leaves one area cold while the rest stays warm.
All three sit on the plumbing side, so they are inside our scope. If the fault turns out to be in your heating plan, such as changing from a large oil system to a new gas or electric one, our plumbing installation work can help once the design is set.
Permits and replacement questions
Replacing a boiler is a different job than repairing one. Permit rules vary, so ask the Neptune Township construction office what applies to your system. The township lists rough, finish and final plumbing inspections for one and two family dwellings, and inspections must be requested at least 24 hours ahead.
If you also rely on a tank for domestic hot water, our page on water heater repair covers that side of the house. Homes in Ocean Township should ask their own township office the same question.
What drives the cost of a boiler repair
Boiler bills depend on the failed part and how reachable it is. Here is what moves them.
If a leak damaged floors or walls, photograph it and tell your insurer or landlord. We can provide an itemized invoice, and coverage is their decision.
Boiler Repair questions in Neptune, NJ
Low pressure usually means water is escaping or the fill valve is not feeding. Look for drips at fittings, the relief valve and radiator valves. A failed expansion tank can also make pressure swing, so we check its air charge.
Do not keep topping up without finding the leak. Repeated fills add fresh minerals and oxygen to the system.
On hot water systems, trapped air or sludge is common. On steam systems, low water, bad pipe pitch or a stuck vent can cause water hammer. We find out which system you have first, since the fixes differ.
Not as a standalone service. We handle the plumbing and water side of a boiler. Oil burner nozzles, oil lines and tanks, and electrical control boards may need a separate heating contractor. If you suspect an oil leak, contact your fuel supplier.
Leave the building immediately. For gas, call the gas utility or 911 from outside before calling a plumber. For a carbon monoxide alarm, get everyone into fresh air and call 911. Do not reenter to check the boiler.
Yes. The 24/7 emergency line is open around the clock at (732) 466-1098, and we offer same-day appointments when available. We do not promise an arrival time, and we will tell you if the problem needs another trade.
Permit rules vary, so ask the Neptune Township construction office. The township lists a Plumbing Subcode Official and an online permit portal. Ask the office whether your boiler job needs a permit and which inspections apply before work starts.
Tell your landlord or property manager in writing right away, and check your lease for who handles heating. Note the date and your thermostat reading.
We can provide a written finding to support your request, with your landlord's approval.
Related plumbing services
Sources referenced on this page: National Park Service, National Register of Historic Places record for the Ocean Grove Camp Meeting Association District.