Radiator Repair in Union County, NJ — Cold Radiator, Leak, or Banging? We Fix All of It.

Steam, hot water, baseboard, or vintage cast-iron — radiator problems are almost always fixable. Most repairs same-day.

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A cold radiator while the rest of the house is warm isn't broken — it's almost always fixable in 30 minutes to an hour. Banging pipes when the heat comes on isn't normal — but it's not a "live with it" problem either. Continental Plumbers has been repairing radiators across Union County since 1985 — cast-iron from the 1920s, modern baseboard, steam systems in Elizabeth and Hillside, hot water systems throughout the county. We diagnose, we fix, and we don't push replacement when repair works.

NJ Master Plumber License #9142
Since 1985
4.7★
(1,377 reviews)
Steam + hot water + baseboard
Radiator Issues We Fix

Every Radiator Problem, Diagnosed and Repaired

The most common issues we handle — organized by system type:



Steam, Hot Water, or Baseboard?

Not Sure What System You Have? Here's How to Tell.

Steam Radiators

Look like: Large cast-iron radiators with a single small vent on the side (1-pipe steam) or a vent at the end (2-pipe).
Sounds like: Hissing as they heat up, sometimes banging.
Common in: Union County homes built 1900–1950, especially in Elizabeth, Hillside, Roselle, parts of Union.

Hot Water Radiators

Look like: Cast-iron radiators with bleed valves on top (small key-operated nut), no hissing vent.
Sounds like: Generally quiet; gurgling means air trapped.
Common in: Homes built 1950–1980, plus converted older homes.

Baseboard Heating

Look like: Long, low metal enclosures along the wall at floor level. Contains copper pipe with metal fins.
Sounds like: Very quiet; occasional ticking as metal expands/contracts.
Common in: Most homes built 1970 onwards, plus retrofits.

We Get It

The Radiator Concerns We Hear Every Heating Season

"One radiator is cold but the rest are hot."

Almost always fixable in a single visit. For hot water systems: usually just air trapped — we bleed it. For steam systems: usually a vent that needs replacement. Rarely a bigger issue, but the diagnosis matters.

"Can I bleed my own radiator?"

For hot water radiators, yes — usually. Open the bleed valve (small nut on top, key-operated) until water comes out instead of hissing air. Close it. If you bleed it and the cold returns within a week, there's an air-introduction problem we should diagnose. Steam radiator vents don't bleed the same way — they replace.

"My radiators bang every time the heat comes on. Is that normal?"

No. It's a common myth that "steam pipes just bang." Banging is almost always fixable — usually pitch, venting, or steam trap issues. Your house can be quiet.

"I love my cast-iron radiators. Can you preserve them?"

Yes — that's what we do. Old cast-iron radiators are beautiful, durable, and great at heat distribution. We repair them, repack valves, replace vents, and preserve them. Most cast-iron radiators are still serviceable after 100+ years.

"My tenant says the radiator in their unit is cold."

Standard property manager call. Usually a quick fix — often just bleeding or vent replacement. We respond same-day in heating season, communicate professionally with the tenant, and document the work.

The Neighbor Difference

Why Union County Trusts Continental with Steam Boilers

Local since 1985

40+ years on Union County radiators — steam, hot water, baseboard, vintage cast-iron.

All system types

Many plumbers specialize in one. We service all four — including the older steam systems most plumbers won't touch.

Repair-first when it makes sense

We don't replace cast-iron radiators that just need a vent. We don't replace baseboard sections that just need straightening.

Licensed & warrantied

NJ Master Plumber #9142. Repair work warrantied — if it fails, we come back.

Where We Serve

Radiator Repair Across Union County

Don’t see your town? call (973) 900-0430

Radiator Repair FAQs

Different cause depending on system. Hot water: air trapped — needs bleeding. Steam: vent stuck closed, painted over, or failed — needs replacement. Either way, almost always fixable same-visit.

Banging is condensate (water) being smashed by steam — never normal. Causes: improper pitch on radiators or pipes, failing steam traps (in two-pipe systems), blocked main vent, or too much water in the system. All fixable.

With proper maintenance: 40–60 years for the boiler itself, often longer. The cast-iron pressure vessel is incredibly durable. Burners, valves, and controls need periodic replacement, but the boiler heart often outlasts modern systems by decades.

Sometimes worth it, sometimes not. Steam systems work well when properly maintained. Switching to hot water involves replacing all the radiators (or converting them), new piping, and a new boiler. Major expense. We'll honestly walk you through whether it makes sense for your home.

For larger repairs and full replacements, yes — through Wisetack. Approved in minutes, no credit impact.

Yes. We work on multi-family steam systems across older Union County — apartment buildings in Elizabeth, Hillside, and similar areas. Maintenance contracts available.