HVAC Services in Brentwood, NY
Residential heating and air conditioning for homeowners in Brentwood — AC repair, furnaces and boilers, oil burners, heat pumps, ductless mini-splits, and the ductwork that ties it together.
Brentwood is one of the larger residential communities in the Town of Islip, with a housing stock built largely in the post-war decades — ranches, expanded ranches, and split levels on standard lots. Many of these homes were built with hot water baseboard or steam and had central air added later as a retrofit, with the duct run wherever it fit. Because so much of the housing went up in the same era, the heating systems are often the same age and type.
Hartworx HVAC is a residential-only heating and cooling company based in Ronkonkoma, and Brentwood 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 Brentwood 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 Brentwood
Homes in Brentwood 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 Brentwood
Brentwood's post-war blocks are full of oil-fired boilers and baseboard, with a retrofitted air handler in an attic or crawlspace. 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 Brentwood, the equipment is looked at first and the diagnosis comes from what is actually there.
Brentwood HVAC questions, answered
Real questions from the kind of call that comes in from Brentwood. If yours is not here, call and describe what the system is doing.
My Brentwood house has an old oil boiler and baseboard. Do you service that?
Yes. Hartworx services and repairs oil-fired boilers and the hydronic side — circulators, zone valves, controls — as well as the burner itself. We service oil, we don't convert it, and we don't do oil-to-gas conversions or swap heat exchangers.
My Brentwood home has a boiler and a separate air handler in the attic. Can you work on both?
Yes. Hartworx works on both the hydronic side and the forced-air side. A house that kept its original boiler and added air conditioning later has two systems, and on a service visit both get looked at.
The baseboard along one wall in my Brentwood house stays cold but the boiler is hot. What causes that?
That is often a failed circulator on that zone, a stuck-closed zone valve, or air trapped in the loop. All three are repairs, not a reason to replace a boiler. Call and describe which zone is cold.
My Brentwood attic has flex duct and the upstairs doesn't cool well. Is that the ducts or the AC?
It is often the ducts. Flex duct in an unconditioned attic that is crushed, kinked, or disconnected starves the rooms it serves, and undersized returns make a coil freeze. A new condenser bolted to bad duct fixes nothing.
Brentwood on the map
Brentwood is in Town of Islip, Suffolk County. The map below is interactive — pan, zoom, and click to explore the area. Hartworx HVAC is based in Ronkonkoma and travels to Brentwood for residential service calls.
Request service in Brentwood
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 Brentwood 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 Brentwood where Hartworx HVAC also works.