Skip to content
4412 Third Avenue, Brooklyn, NY 11232Monday – Friday: 7:00 am – 5:00 pmSince 1986Master Plumber · NY License no. 000000General liability and workers' compensation
1 more license
  • Master Plumber · NY License no. 000000
  • General liability and workers' compensation
No-heat line(718) 555-0103

Services

Steam boiler service and repair

A steam boiler heats water until it makes steam, and everything else in the building depends on doing that safely and evenly.

We work on gas and oil boilers in small multifamily buildings. We start with the parts that protect the boiler, then the burner, then the pipes the steam travels through.

Signs you need it

  • Radiators that stay cold, or heat at one end only

  • Banging or knocking in the pipes

  • Water level that drops or swings in the gauge glass

  • A burner that cycles on and off every few minutes

  • Water or steam at a vent or a fitting

  • Brown water in the gauge glass

Cast-iron radiator under a tall dark-framed window in warm light

The visit

What happens at the visit

  1. 01

    Step 1: We read the boiler

    Gauge glass, pressure gauge and pressure control, then the burner flame or the oil nozzle and the flue.

  2. 02

    Step 2: We test what protects it

    The low-water cutoff, the safety valve and the pressure setting, each in turn.

  3. 03

    Step 3: We follow the steam

    Main vents, risers and a sample of radiators, to see where steam arrives late or not at all.

  4. 04

    Step 4: You get the estimate in writing

    What is wrong, what we propose, what it includes and when we can start, before any repair begins.

  5. 05

    Step 5: We do the work and test it

    We run the boiler through a cycle and check the cold apartments again before we leave.

Cost

What drives the cost

We don't print prices here. These are the things that move the number, and the estimate lists each one that applies.

  • What is wrong

    A stuck vent costs less to fix than a failed low-water cutoff, which costs less than a cracked section.

  • Fuel and burner

    Gas and oil burners have different parts, and some burners are cheaper to repair than to replace.

  • Age and access

    Older controls may need to be replaced as a set, and a tight boiler room takes longer.

  • How dirty the water is

    Sludge and oil in the water cause false cutoffs and uneven steam. Cleaning the boiler is a separate line.

  • The number of units

    More risers and radiators mean more time to balance the system.

  • Permits

    Some work needs a permit, and the estimate says whether yours does.

Questions

Questions about this work

How often should the low-water cutoff be tested?

Many owners test it every year and flush the boiler at mid-season. Your insurer or the city may require a schedule for your building.

Why does my boiler lose water?

A leak in the returns, a stuck vent that spits water, or a boiler that foams from dirty water. We trace it before we add a part.

Can you convert my steam boiler to hot water?

Sometimes, but the radiators and piping were made for steam. We explain what a conversion would involve before you decide.

Related

Often part of the same visit

Book a visit or call the office

Tell us the building and what you see. We will call you back to set the visit.