Open 24 Hours
Emergency Service
Financing Available
With Approved Credit
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Reliable HVAC Service & Repair Across Westchester, Putnam & Rockland
Licensed, insured, and committed to your family's comfort. Whether you need heating, air conditioning, or a full system installation, we've got you covered.
Need an HVAC technician now?
(914) 257-3485- Free estimates on installations
- Upfront, transparent pricing
- Family-owned & operated
- Mitsubishi Diamond Contractor
Heating & Cooling Services for Every Home
From quick repairs to full system replacements, we handle every HVAC service your home needs. One trusted team, every season.
HVAC Repair
Fast, reliable repair for any HVAC system. Trusted across Westchester, Putnam, and Rockland Counties.
Air Conditioning
AC repair, installation, and maintenance for central, ductless, and split systems. Stay cool through every Westchester summer.
Heating & Furnace
Furnace repair, boiler service, and heating system installation. Keep your home warm through every NY winter, no matter how cold.
Heat Pumps
Energy-efficient heat pump installation and service. Lower bills, year-round comfort, and Mitsubishi Diamond Contractor ductless solutions.
Maintenance Plans
Priority service, seasonal tune-ups, and discounted repairs. Keep your HVAC system running efficiently year-round.
Indoor Air Quality
Air purifiers, humidifiers, and filtration systems to keep your home's air clean, balanced, and healthy year-round.
Honest, Reliable HVAC Service Since Day One
We've built our reputation on doing right by our customers. No upsells, no pressure, no surprises on the invoice.
Fast, Reliable Scheduling
Quick response during business hours. We get you on the schedule fast and show up on time, every time.
Licensed & Fully Insured
Fully licensed and insured throughout New York and Connecticut. ACCA member with industry-recognized credentials.
Transparent Pricing
Upfront flat-rate quotes before any work begins. No hourly meter, no surprise charges, no hidden fees.
Local Family Business
We live and work in Westchester County. When you call us, you're talking to someone who knows your area.
Financing Available
Affordable monthly payment options on installations and major repairs. Get the system you need without the upfront strain.
Trusted HVAC Across the Tri-State
Proudly serving homes and businesses throughout Westchester, Putnam, Rockland, and Fairfield County. If you're in the area, we're nearby.
Reviews From Real Westchester Homeowners
We've earned our reputation one customer at a time. Here's what your neighbors are saying.
"Our AC went out on the hottest day of the summer. Thermodynamix had a tech at our door within hours. Fixed it on the spot, fair price, and the guy was professional from start to finish. Will absolutely use them again."
"We had Thermodynamix install a Mitsubishi ductless system in our home in Mahopac. Clean install, great communication, fair pricing. The whole team was respectful and professional. Highly recommend."
"Had a heating issue the night before a snowstorm. Called Thermodynamix at 9pm and they came out within the hour. Fair pricing, even at that hour. Saved my family from a freezing weekend."
Need HVAC Service in Westchester?
Talk to a real technician across Westchester, Putnam, Rockland and Fairfield Counties. Same-week scheduling available.
Main Office:
2 Sherman Pl, Ossining, NY, 10562, USA
9143503991
Connect With Us
Expert Air Conditioning & Heating Service
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