Boiler Repair & Replacement in New York
A boiler heats water, not air, and its faults show up as cold radiators, no hot water, or a slow leak. This page explains boiler repair, seasonal start-up, and when replacement fits.
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Boilers heat many New York homes, from old radiators in Troy to combi units in newer builds, and a boiler fault shows up differently from a furnace fault. 'we're having a problem with a boiler' is the call, and the problem is usually one of three: no hot water, no heat from the radiators, or water where it should not be. This page explains boiler repair and replacement in the order a technician works through them.
A boiler is a water system first and a heating system second, so the visit checks water as well as fire. Pressure, leaks, air in the radiators, and the burner all matter, and a fault in any one of them can leave the home cold. 'I have a central heating boiler that is on the fritz' is a fair description of how it feels - the system runs, but the heat never quite arrives.
No Hot Water and Boiler Breakdowns
No hot water is the boiler call that arrives fastest. 'It's been two months now. We're not getting hot water.' 'we are not getting hot water.' On a combi boiler, hot water and heating come from the same unit, so a fault can take both at once.
A boiler that will not start is checked from the thermostat to the burner. 'the heat is not going on upstairs' can mean the radiators upstairs are cold while the ones downstairs are warm, which points to air in the system or a circulation fault rather than a dead boiler.
Some boilers need a new service provider, not a new boiler. 'So we need a new service provider for our boiler.' 'your website says you all do work boilers.' A boiler that has been serviced by different hands over the years may carry a mix of parts and settings, and the visit starts by learning the system as it stands.
Gas Smell, Corroded Pipes, and Leaks
A gas smell at a boiler is a safety call. 'We were smelling gas.' Leave the house, call the gas utility or the fire department from outside, and call for boiler repair only after the home is declared safe. 'We have a residential boiler that heats up water for our radiator system.' That is the system the utility crew will isolate, and the gas stays off until the fault is found.
Corroded pipes are a slow boiler fault. 'I was hoping to have someone come take a look at my boiler. There's like a pipe on it that appears worn,' and that pipe is inspected along its length, because corrosion at one joint often means the same water is working on the rest of the system.
A slow leak is easy to miss and costly to ignore. 'I have a slow leak in my boiler that's dripping.' A drip at a valve, a joint, or the pressure relief can run for weeks, dropping the system pressure and letting air in. The leak is traced to its source, the part is replaced, and the system is refilled and bled so the radiators heat evenly again.
Seasonal Start-Up, Combi Boilers, and Radiators
Boilers that sit idle through the summer need a start-up before the cold arrives. 'We need it just started up for the season.' The seasonal start-up covers the burner, the flue, the pressure, the pump, and the radiators, and the system is run until every radiator heats.
Combi boilers need a yearly service of their own. 'the regular yearly maintenance for combi boilers' covers the burner, the heat exchanger, the diverter valve, and the condensate drain. A combi that heats the home but gives no hot water often has a diverter fault, and a combi that gives hot water but no heat often has a circulation fault.
Radiators that heat unevenly need balancing, not a new boiler. 'the ones on our up our second floor um get way too hot' is the classic balancing report: the radiators nearest the boiler take all the heat, and the far ones stay cold.
Boiler Replacement and Pre-Purchase Inspection
Boiler replacement is considered when the boiler is old, the heat exchanger is cracked, or the repairs keep growing. 'my son is buying a home and it needs a new boiler.' 'I am getting estimates from various companies for a brand-new boiler.' An estimate starts with a visit: the old boiler, the radiators, the flue, the fuel supply, and the space for the new unit are all checked.
Oil boilers are common in New York homes beyond the gas mains, and they are replaced like gas boilers, with the oil burner and the tank in the scope.
A pre-purchase boiler inspection is a separate visit with a different aim. 'I'm calling to see if you do a boiler inspection.' The inspection reports the boiler's age, condition, and remaining life, and whether the radiators, the flue, and the fuel supply are sound.
Annual cleaning keeps a boiler, gas or oil, running well. 'Can I make an appointment to get my boiler cleaned?' A cleaning covers the burner, the flue passages, and the water side, and the system is checked for leaks and air. 'I have a house in Cranston and I'd just like to have a boiler service.' The yearly service is the visit that keeps a sound boiler from becoming a breakdown.
Boiler Service Checklist
- Burner and ignition tested through full cycles.
- Water pressure set and pressure relief checked.
- Radiators bled and balanced room by room.
- Pipes inspected for corrosion and leaks.
- Flue checked for blockage and corrosion.
- Diverter valve tested on combi boilers.
- Gas fittings checked and line tested.
Frequently Asked Questions
Why am I not getting hot water from my boiler?
On a combi boiler, hot water and heating come from the same unit, so a burner fault, low water pressure, or a diverter valve that will not switch can all stop the hot water. A technician checks the burner, the pressure, and the diverter in turn to find which one has failed.
My boiler has a slow leak. Can it wait?
A slow leak drops system pressure and lets air into the radiators, so the home heats unevenly while the leak runs. The leak is traced to its source - a valve, a joint, or the pressure relief - and the part is replaced before the system is refilled and bled.
Some radiators are hot and some are cold. What causes that?
Air trapped in the radiators or an unbalanced system. Radiators that are cold at the top need bleeding, and radiators that take all the heat while far ones stay cold need balancing. Both are checked at a boiler service visit.
What is involved in a boiler replacement estimate?
A visit to the home comes first: the old boiler, the radiators, the flue, the fuel supply, and the space for the new unit are checked. The estimate lists the boiler, the venting, and the removal of the old unit, so the scope is clear before work starts.
Should I get a boiler inspected before buying a home?
Yes. A pre-purchase inspection reports the boiler's age, condition, and remaining life, and whether the radiators, the flue, and the fuel supply are sound. That report shapes the purchase decision and the timing of any replacement.
Areas We Serve
This service is available across New York State, including:
- Furnace Repair in Somers, NY
- Furnace Repair in Spring Valley, NY
- Furnace Repair in White Plains, NY
- Furnace Repair in Cobleskill, NY
Related Services
Call (877) 796-0425 any time — 24/7 emergency line — to talk through your furnace problem in New York and book a visit.
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