HVAC Services in Selden, NY
Residential heating and air conditioning for homeowners in Selden — AC repair, furnaces and boilers, oil burners, heat pumps, ductless mini-splits, and the ductwork that ties it together.
Selden is a residential community in central Brookhaven, with a housing stock of post-war ranches, split levels, and later colonials on standard lots. Many of these homes were built with oil heat and hot water baseboard, and central air was retrofitted later with the duct run wherever it could fit. The retrofit ductwork in unconditioned attics is a frequent source of comfort complaints that get blamed on the equipment when the duct is the real problem.
Hartworx HVAC is a residential-only heating and cooling company based in Ronkonkoma, and Selden 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 Selden 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 Selden
Homes in Selden 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 Selden
Flex duct in an unconditioned Selden attic that has been crushed, kinked, or disconnected at a boot starves the rooms it serves, and undersized or missing returns make a coil freeze and stop moving air. A new condenser bolted to bad duct is the most common way a homeowner spends a lot of money and stays uncomfortable.
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 Selden, the equipment is looked at first and the diagnosis comes from what is actually there.
Selden HVAC questions, answered
Real questions from the kind of call that comes in from Selden. If yours is not here, call and describe what the system is doing.
My Selden home has oil heat. Do you service oil burners?
Yes. Hartworx services and repairs oil burners in Selden. 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 Selden attic has flex duct and the upstairs doesn't cool. Is that the ducts?
It often is. 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. The duct system is checked before the equipment is blamed.
Can I add a ductless mini-split to my Selden house with baseboard heat?
Yes. Ductless mini-splits can be added to individual rooms without touching the boiler or the existing heating system. The mini-split handles the cooling, and the hydronic heat stays exactly as it is. The decision comes from looking at the actual house.
Do you work on boilers in Selden?
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.
Selden on the map
Selden is in Town of Brookhaven, Suffolk County. The map below is interactive — pan, zoom, and click to explore the area. Hartworx HVAC is based in Ronkonkoma and travels to Selden for residential service calls.
Request service in Selden
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 Selden 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 Selden where Hartworx HVAC also works.