Boiler Repair on Long Island

Boilers fail differently from furnaces, and steam fails differently from hot water. What we fix most often:

• No heat, burner will not fire. On oil, a clogged nozzle or filter, a failed ignition transformer or a lockout at the primary control. On gas, a failed igniter or pilot assembly, flame sensor or gas valve.
• Some rooms or zones cold, others fine. A failed zone valve or circulator pump, or air trapped in the loop on a hot-water system.
• Pressure relief valve dripping or pressure climbing. Usually a waterlogged expansion tank or a failing fill valve on hot-water systems.
• Banging pipes on a steam system. Often a pressure control set too high, water trapped in pipes that have lost their pitch, or failed radiator vents.
• Low-water cutoff tripping. The most important safety device on a steam boiler. It needs testing and flushing, and a cutoff that trips repeatedly is telling you something.
• Leaks at the boiler. A leaking fitting, pump seal or relief valve is repairable; water weeping from the boiler sections themselves usually is not.
• Soot, smoke or a puff-back on an oil boiler. That calls for an immediate burner and combustion check.

1. Tell us what you see. Steam or hot water, the pressure or water level in the sight glass, whether the burner fires and which rooms are cold. That decides what we bring.
2. Safety checks. Venting, flue draft and the low-water cutoff come first.
3. Diagnosis. We check the burner, controls, circulators, zone valves, expansion tank and relief valve on hot-water systems; on steam, the water line, pressure control, cutoff and main vents.
4. A price before work. You hear the cause, the fix and the price first.
5. Repair and test. We bring the system up to temperature, confirm every zone heats and, on oil, take a combustion reading so the burner runs clean.

Every boiler repair is quoted after diagnosis. What moves the price:

• Steam or hot water. Steam systems involve vents, water levels and piping pitch; hot-water systems involve pumps, valves and the expansion tank.
• The part. A zone valve head, a circulator, a burner component and a gas valve are very different in cost.
• Fuel. Oil burners need a nozzle, filter and combustion setup that gas boilers do not.
• Draining and refilling. Some repairs need the system drained, refilled and purged of air, which adds time.
• Age. Controls for older boilers can take longer to source.

Plan members get a repair discount and priority scheduling through our maintenance plans.

Well-maintained cast iron boilers often last 25 years or more, so repair is usually the right answer for pumps, valves, controls and burner parts. Replacement is worth discussing when:

• the boiler sections are leaking or cracked;
• the boiler is past 25 to 30 years and parts are getting hard to find;
• fuel use is high and the burner cannot be tuned to burn efficiently; or
• you want to move from oil to gas, which is often done when an oil boiler is replaced. See oil-to-gas conversion.

Our online Cost Estimator gives a gas boiler replacement planning range of roughly $7,500 to $16,000; your quote depends on the system and the piping. For new equipment, see heating installation. Financing is available through Rheem KwikComfort, with credit provided by Synchrony Bank, subject to credit approval. See financing for how it works.

Related services: furnace repair, 24/7 emergency service, boiler and furnace tune-ups, oil-to-gas conversion and water heaters. Guides: the boiler maintenance checklist, combi vs. conventional boilers and boilers in winter.