HVAC Services in Commack, NY
Residential heating and air conditioning for homeowners in Commack — AC repair, furnaces and boilers, oil burners, heat pumps, ductless mini-splits, and the ductwork that ties it together.
Commack is a large residential community at the western edge of the Town of Smithtown, bordering the Town of Islip. The housing stock is a mix of post-war ranches, split levels, and later colonials on standard lots. Many of the older homes were built with oil heat and hot water baseboard, and central air was added later as a retrofit. Because Commack is large and was built up over several decades, the housing age and type vary from block to block.
Hartworx HVAC is a residential-only heating and cooling company based in Ronkonkoma, and Commack sits inside that service footprint. The owner, Travis Hart, has worked in the HVAC trade since 2017 and answers the phone himself — there is no dispatcher between you and the person who shows up at the door. When equipment in Commack fails, the call is to (631) 873-5844 and the job is to get it running again, not to sell you something you do not need.
Heating & air conditioning services in Commack
Homes in Commack run on a mix of forced-air furnaces, hot water and steam boilers, oil burners, central air, heat pumps, and ductless systems. The work below is what we do here — each links to the page that explains it in detail rather than repeating the same description on every town page.
What's different about Commack
The retrofit ductwork in Commack is often the weak half of the system, with flex duct in unconditioned attics crushed or kinked. A house that kept its original boiler and added a heat pump or air handler later has two heating systems, two controls, and nobody has explained to the homeowner how they are supposed to interact.
The point of naming it is that the fix is not the same everywhere. A condenser on a salt-air block, a flex duct run through a 120° attic, and a thirty-year-old cast iron boiler in a damp basement are three different jobs, and the wrong move on any of them is to treat it like the other two. On a service call in Commack, the equipment is looked at first and the diagnosis comes from what is actually there.
Commack HVAC questions, answered
Real questions from the kind of call that comes in from Commack. If yours is not here, call and describe what the system is doing.
My Commack home has oil heat. Do you service oil burners?
Yes. Hartworx services and repairs oil burners in Commack. We service oil — we don't convert it, and we don't do oil-to-gas conversions or swap heat exchangers. If your burner is down, the job is to get it running.
My Commack house has baseboard heat and no ducts. Can I add AC?
Yes. Ductless mini-splits can be added to individual rooms without touching the boiler, or a retrofit ducted system can go in if the house allows it. The right choice comes from looking at the actual house.
Do you work on boilers in Commack?
We work on boilers directly — hot water and steam, baseboard and radiators. Most heating and cooling companies in this area won't touch a boiler and hand it to a plumber. Hartworx does this work.
Can ductless be added to a converted room in my Commack home?
Yes. A ductless head heats and cools from the same equipment and is on its own control, so it serves a converted garage, addition, or finished room without putting a load on the system that was never designed for it. The capacity is decided on site.
Commack on the map
Commack is in Town of Smithtown, Suffolk County. The map below is interactive — pan, zoom, and click to explore the area. Hartworx HVAC is based in Ronkonkoma and travels to Commack for residential service calls.
Request service in Commack
Tell us what is happening with your heat or AC. If it is out right now, calling (631) 873-5844 is faster — open seven days a week until 10 PM.
In Commack and need help now?
Open 7 days a week, until 10 PM. The person who answers is the person who comes out.
Nearby areas we serve
Communities around Commack where Hartworx HVAC also works.