Furnace & heating
AC repair
Heat pumps
Ductless mini splits
Carrier
Trane
GoodmanSeasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
Get your free estimateHVAC Company in Plainview, NY
Plainview homeowners call us for two things most often: cooling that quit in July, and heat that quit in January. The homes here – mostly split-levels, ranches, and expanded capes from the 1950s through the 1970s – were rarely built with central air in mind, and many still run on original ductwork and boilers. That means the right fix in Plainview usually involves more than swapping a part. It takes a crew that knows how these houses are put together. If your system is down, call (516) 559-4840 and a live person answers, day or night.
Why Plainview Homes Are Different
The housing stock in Plainview does not make HVAC work easy, and that is not a complaint – it is just the reality of the job. Most of these homes went up between the 1950s and 1970s, before central air was standard on Long Island. What that means in practice: furnaces tucked into crawlspaces and low-ceiling utility rooms where a filter change takes three times as long as it should. Some 1960s homes still carry original asbestos-wrapped ductwork that complicates any repair or retrofit. When we add air conditioning to a ranch or split-level here, we are usually threading new trunk lines through tight mechanical closets and working around slab foundations that leave no basement to hide anything in.
The climate compounds it. Plainview gets hot, muggy summers and genuinely cold winters. Coastal humidity eats at outdoor condenser units faster than inland locations see, and the nor’easters that swing through test every seal, cap, and mounting bracket on exterior equipment. A system that works fine in a brick colonial in Queens takes more abuse on a corner lot off Old Country Road. We plan for that.
Styles & brands we work with







Our Main Plainview Services
Three services make up the bulk of what Plainview homeowners call us about: air conditioning repair in summer, furnace repair in winter, and heat pump installation year-round as people look for one system that handles both. Each has its own page with pricing and details.
AC Repair in Plainview
When a condenser coil corrodes from years of salty, humid air or a compressor gives out during a heat wave, the fix has to be fast and it has to hold. Plainview’s outdoor units sit close to the house on tight lots, which means we are usually working in a narrow side yard with a fence on one side and the neighbor’s shrubs on the other. AC Repair in Plainview covers what we see most, what parts we stock, and what the repair typically costs before we touch a thing.

Heat Pump Installation in Plainview
Heat pumps are a natural fit for Plainview’s split-levels and ranches, because they deliver both heating and cooling without needing ductwork in homes that were never designed for it. The challenge here is the mechanical space – many of these houses have a closet, not a basement, and sizing the air handler to fit while still moving enough air takes real measurement, not guesswork. Heat Pump Installation in Plainview walks through the options and what a properly sized system costs.

Furnace Repair in Plainview
Furnaces in Plainview live in crawlspaces, low-ceiling utility rooms, and occasional attics, and many of them are original to the house or close to it. A cracked heat exchanger or a failed inducer motor is common, and the tight access makes diagnosis slower unless the tech has worked in these homes before. Furnace Repair in Plainview explains the most common failures we see here and what the repair runs.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Plainview
Our techs are factory-trained on Rheem, York, Daikin, and Bryant equipment, and we keep common parts for those brands stocked locally. That shortens turnaround when a Plainview furnace or condenser goes down mid-season. See our brands for the full list.
See the difference
Before
After
Before
After
Before
AfterPricing for HVAC Company in Plainview, NY
| Service | Typical range in Plainview |
|---|---|
| AC repair | $150 – $650 |
| Furnace repair | $150 – $700 |
| AC installation | $3,500 – $7,500 |
| Tune-up | $80 – $200 |
Most furnace repairs in Plainview land between $150 and $450 depending on the part, with heat exchangers and blower motors pushing toward the top of the range. What pushes Plainview pricing up is access – a furnace in a three-foot crawlspace or a condenser wedged in a narrow side yard takes more labor than the same repair in an open basement. Whatever the number, it goes in writing before we start, and the repair is guaranteed in writing for a full year. If it fails in that time, we come back at no charge.
Neighborhoods We Serve in Plainview
We run calls across the whole Plainview area, and because our technicians know these streets, we can usually give a straight answer on when we will arrive. Typical response time runs one to three hours for emergency calls during business days, with weather-related surges sometimes extending that window.
- Manetto Hill area
- Old Bethpage border streets
- Plainview-Old Bethpage central corridors
- Washington Avenue corridor
- South Plainview residential sections
Service Area – Cities Near Plainview
Dalton Heating & Air handles HVAC work throughout central Nassau County. If you are in a neighboring community, we serve Hicksville, NY, Bethpage, NY, Syosset, NY, and Levittown, NY with the same written pricing and one-year guarantee on every repair.
Serving Plainview, NY - Our Local Coverage Area
We’re based in the Plainview area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About HVAC Company in Plainview
Most emergency cooling and heating calls in Plainview get a technician on site within one to three hours during normal business days. During heat waves or deep cold snaps, call volume rises and that window can stretch, but the person who answers the phone will give you a straight timeframe, not a vague promise.
Replacement and new installation of HVAC equipment in Plainview generally requires permits through the Town of Oyster Bay, which governs Plainview. Repairs do not. We handle the permit paperwork and scheduling on any job that requires it. Call (516) 559-4840 with your address and we can tell you what your specific project triggers.
Our technicians are factory-trained to service nine major residential brands, including Rheem, York, Daikin, and Bryant, which represent a large share of Plainview’s installed equipment. For less common or discontinued brands, we will tell you honestly on the phone whether we are the right crew for the job.
What happens when you call
- 1A real person answersNo phone trees - talk to a local hvac pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Plainview Customers Say
"No pressure to upgrade. He said the old unit had a few years left and fixed the actual problem."
- Jimmy V."Changed the filter size and added a better filter rack. Simple and useful advice."
- Rhonda C."Furnace tune-up. He cleaned the burners and flame sensor, tested for carbon monoxide, and gave me a clear report."
- Lisa M.