Home |HVAC Service Areas| Thornwood, NY
Heating, cooling, and tune-up work from a family-owned, licensed and insured Westchester company.
Home |HVAC Service Areas| Thornwood, NY
Heating, cooling, and tune-up work from a family-owned, licensed and insured Westchester company.
Stay covered with insured crews working on the property each visit.
Your HVAC project is our priority and we treat it that way.
Watch the new system get verified before the crew packs up the truck.
An HVAC failure on the wrong day rearranges your week. Calls to the office, time waiting for a tech, a humid house full of kids while everyone waits for the part to arrive. The smaller frustrations add up fast.
Mazzacone Plumbing & Heating works to keep the disruption short. Our team responds same day in most cases and arrives within a posted window so you are not killing an afternoon waiting for a no-show.
Six decades of work in Thornwood and the surrounding hamlets taught us that a clear plan is worth more than a fast promise. You get the timeline up front and our crew shows up ready to restore comfort for you and your family.
Most major HVAC replacements in Thornwood follow a predictable timeline. AC condensers from the late 1990s run on R-22 refrigerant that costs more to top off each year, while furnaces from the same era have pushed past their efficient years.
Replacement makes the math obvious within a five-year window. Modern condensers cost less to run, modern furnaces cost less to fuel, and both carry manufacturer warranties the old equipment lost long ago.
Mazzacone handles both sides of the equation. Every replacement starts with a load calculation, includes proper venting and gas line work for the furnace and clean line set work for the AC, and ends with a documented startup so the new equipment runs the way it was sized to.
From quick repair calls to full system replacements.
AC service calls in Thornwood usually trace back to one of three issues: a refrigerant leak from last fall, a worn capacitor, or a clogged outdoor coil. Our techs identify the cause on the first visit and quote the fix before tools come out.
Mini splits work well in Thornwood homes that lack the duct chases needed for a traditional system. We install single and multi-zone setups, route line sets cleanly along the exterior, and verify each zone runs both heat and cool before leaving.
Swapping out an old furnace is rarely a same-tonnage exchange. We review the gas line, return air paths, and venting before equipment is ordered, then install a high-efficiency unit that vents cleanly through PVC and runs quieter than the original.
Heating that fails in the middle of January is not a problem that waits. Our crew responds within the same week, traces the issue to ignition, gas valve, blower, or controls, and gives flat-rate pricing on the fix before any wrench moves.
: Tune-up visits catch small failures before they grow into emergencies and protect the manufacturer warranty along the way. Each visit covers combustion testing, coil cleaning, refrigerant charge checks, electrical inspection, and a written report.
Thermostat installs sound simple but often involve compatibility checks across wiring, equipment, and existing controls. We verify wiring, install the new Wi-Fi or learning unit, and pair it with your equipment so it runs the schedule.
Here is what to expect when you bring us in for the work, end to end.
Use the form on our site or give the office a quick call. Our team confirms the appointment and adds it to the schedule with you.
A tech walks the home, runs a diagnostic on the failing equipment, and follows up with an estimate to repair or replace your HVAC system.
On install day, the crew shows up at the agreed time, lays floor protection, completes the work to code, and tests it before leaving.
These come up most often across Thornwood homes, from older houses near Carroll Park to the newer streets near the Pleasantville border.
Thornwood started as a Lewis Smadback development in 1891, became Sherman Park in 1906, then Hillside in 1909, before taking its current name in 1914.
The Westchester marble quarry near Four Corners once supplied stone for St. Patrick’s Cathedral. Older single-family homes near James M. Carroll Park each have their own HVAC quirks, and our crew knows them well.
AC replacement, furnace replacement, and seasonal tune-ups make up most of our calls. Thornwood homeowners stay with us because we explain the work plainly and stand behind every install.
Beyond Tarrytown, we cover HVAC work in nearby Westchester cities, villages, and hamlets year-round.
Mazzacone Plumbing & Heating
(914) 941-2540
117 Dale Ave
Ossining, NY 10562
M- F 8:00 AM – 5:00 PM
Sat: Appointment Only
Sun: Closed
