If your boiler is doing any of this, call now — before it gets worse
Small boiler problems become no-heat emergencies fast. These are the six calls we get most — every one of them is worth a same-day look.
No heat or no hot water
The emergency call. Don’t wait it out in a cold house — call and we’ll get a technician to you.
Banging, kettling or rumbling
A boiler shouldn’t sound like a tea kettle or a radiator fight. Noise means pressure or sediment trouble.
Leaks or drips
Water around the base is never normal. Left alone it ruins floors and rusts the system from the outside in.
Pilot light or ignition issues
A pilot that won’t stay lit or a boiler that won’t fire is a safety issue as much as a comfort one.
Rising energy bills
Same thermostat, bigger bill? A struggling boiler burns more fuel to do the same job.
Constant cycling on and off
Short cycling wears parts out fast and never gets the house truly warm. It won’t fix itself.
Time for a new boiler? The estimate is free.
If your boiler is past saving — or repair bills keep stacking up — we’ll walk your home, size the right system, and give you a straight price in writing. No cost, no obligation, no pressure.
From first call to heat back on
Call us
Call (914) 228-5104. No heat? Say so — emergencies go to the front of the line.
Diagnosis, straight answers
A licensed technician finds the real problem and tells you plainly: repair it, or replace it — with a price for each.
The work gets done right
Repairs done on the spot whenever possible. Replacements installed and commissioned to spec.
Heat you can count on
We test everything before we leave — and we’re a phone call away after, with maintenance plans to keep it that way.
What our neighbors say
★★★★★“The entire team is professional, knowledgeable, accommodating and positive. They resolved an urgent cooling issue quickly, and still took the time to explain the procedures.”
★★★★★“A courteous, experienced and knowledgeable team. They are prompt, effective and so nice whenever I speak with them. I would highly recommend this company.”
★★★★★“We’d struggled for years to find high quality service. Thermodynamix sent a team with specialist knowledge, diagnosed and fixed it. Always on time.”
Frequently asked questions
Should I repair my boiler or replace it?
It depends on age, condition, and what the repair costs. As a rule of thumb: if the boiler is well into its lifespan and the repair is a big one, replacement usually saves money long-term. We diagnose first, then give you an honest price for both paths so you can decide.
My boiler stopped working and it’s freezing. How fast can you get here?
Call (914) 228-5104 and tell us you have no heat. Emergency service is available, and no-heat calls go to the front of the line.
How much does a new boiler cost?
It depends on your home’s size and what the system needs to do — which is why we don’t guess over the phone. The in-home estimate is free, and you get the price in writing. Financing is available with approved credit.
How long does a boiler installation take?
Most residential swaps are done in a day or two. We confirm the timeline at your estimate, before any work starts, and we don’t leave until the system is tested and heating.
How long should a boiler last?
With annual maintenance, 15 years or more is common. Skipped maintenance shortens that fast — ask about our maintenance plan when we’re out; it’s the cheapest insurance a heating system can have.
Do you service my area?
We serve Westchester, Putnam, Rockland and Fairfield Counties from our shop in Ossining. Call to confirm service in your area.
Don’t spend another night with a bad boiler
One call gets you a licensed technician, a straight answer, and heat you can count on. Installation estimates are always free.

