Furnace & heating
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 Manhasset, NY
Manhasset’s mix of 1920s estate homes, mid-century split-levels, and newer Colonials means no two HVAC jobs here look quite the same. Many houses in the Plandome and Manhasset hills areas were built around coal-fired gravity heat and converted decades later, leaving awkward ductwork or none at all. Coastal humidity off Long Island Sound adds another layer: cooling systems here work harder against moisture than they do inland. Brandt HVAC handles all of it with written pricing before any work starts. Call (845) 328-4955 and a live person answers, day or night.
Why Manhasset Homes Are Different
Manhasset’s oldest housing stock dates to the 1920s, when North Shore estate builders put up Tudors and Colonials with slate roofs, plaster walls, and basements never designed for modern mechanical equipment. Later infill from the 1950s and 60s brought split-levels with their own quirks: slab floors, short stair runs, and furnaces tucked into spaces that were fine for a coal bin but tight for a high-efficiency unit.
What that means for HVAC work is practical. Basements with low ceiling clearances limit where a new furnace or air handler can go. Plaster walls make running new ductwork expensive and invasive. Slate roofs complicate any flue or venting changes. We see a lot of homes where the original gravity ductwork was adapted rather than replaced, and the result is uneven heating on the second floor and weak airflow in the far bedrooms.
The coastal climate matters too. Humidity from Long Island Sound sits over Manhasset through much of the summer, so air conditioners here need to pull moisture out of the air, not just lower the temperature. Corrosion-resistant coils are worth considering on any replacement, because salt air shortens the life of standard aluminum fins. Winters are cold enough that a heating failure is a genuine emergency, but not so brutal that every home needs a boiler upgrade.
Many Manhasset homes never had central air at all. High-velocity mini-duct systems are a common retrofit in these older houses because the small ducts can snake through existing wall cavities without tearing out plaster. We’ll talk through what’s actually feasible in your specific house, not a generic brochure answer.
Styles & brands we work with






Our Main Manhasset Services
The jobs Manhasset homeowners call us about most are AC problems in summer and furnace trouble in winter, with maintenance visits in between to keep both running. Each has its own Manhasset page with local pricing and specifics.
AC Repair in Manhasset
When a central air system fails in Manhasset’s July humidity, the house gets uncomfortable fast. Common calls we field here are frozen evaporator coils, failed capacitors on condensing units, and refrigerant leaks on older R-22 systems that were never converted. The coastal air means outdoor condenser units take more corrosion than inland units, so electrical contacts and coils fail earlier. We diagnose the exact problem, hand you a written price, and only start work when you approve it. Full details on AC Repair in Manhasset.

Furnace Repair in Manhasset
Manhasset’s older homes often still run on converted gravity systems, which means hot-water boilers and steam radiators alongside newer forced-air furnaces. The failure points vary: igniters on gas furnaces, circulator pumps on boilers, and zone valves on homes with multiple thermostats. A no-heat call in a 1920s Colonial with plaster walls can be trickier than a newer split-level, and we carry parts for the brands most common across the area. See Furnace Repair in Manhasset for what to expect.

AC Maintenance in Manhasset
Annual AC maintenance in Manhasset is less about preventing a breakdown and more about keeping a system efficient through the long humid season. A coastal condenser unit should be checked for corrosion, coil fins cleaned, and refrigerant levels verified before the first heat wave hits. On older Manhasset homes where the air handler lives in a low-clearance basement, the filter might be easy to forget, but a clogged filter is one of the most common causes of a frozen coil. Read AC Maintenance in Manhasset for the full checklist and flat pricing.

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 Manhasset
We service and install all major residential brands, including Lennox, Goodman, Rheem, and York. Parts availability in Manhasset is good for these lines, which shortens repair times on common failures. For more on what we work on, see our brands.
See the difference
Before
After
Before
After
Before
AfterPricing for HVAC Company in Manhasset, NY
| Service | Typical range in Manhasset |
|---|---|
| AC repair | $150 – $650 |
| Furnace repair | $150 – $700 |
| AC installation | $3,500 – $7,500 |
| Tune-up | $80 – $200 |
What pushes a Manhasset job toward the high end is access: low-clearance basements, slate roof penetrations, and plaster walls that make running new lines or ductwork slower. What keeps it predictable is our pricing model: you get a written price before any work starts, and that’s the number you pay, not an estimate with surprises added later.
Neighborhoods We Serve in Manhasset
We cover the entire Manhasset area, from the older streets off Plandome Road to the neighborhoods up on the hills and the newer developments to the south. Typical response time in Manhasset is same-day for emergency repairs and within a day or two for scheduled maintenance.
- Plandome
- Manhasset Hills
- North Hills
- Munsey Park
- Flower Hill
Service Area – Cities Near Manhasset
Beyond Manhasset, our teams regularly serve the surrounding North Shore communities. If you’re in Great Neck, NY, Williston Park, NY, Mineola, NY, or New Hyde Park, NY, the same written-price promise and background-checked technicians apply.
Serving Manhasset, NY - Our Local Coverage Area
We’re based in the Manhasset 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 Manhasset
Most HVAC replacements in Manhasset require a building permit through the Town of North Hempstead, and we handle the paperwork as part of the job. Repairs and maintenance typically don’t need a permit. We’ll tell you what applies to your specific scope before work begins.
Yes. Some Manhasset neighborhoods have architectural review boards or landmark overlays that restrict where condensers can sit or how venting runs. We’re familiar with those constraints and will flag any issues before you commit to equipment placement. Call (845) 328-4955 to talk through your specific street.
For no-heat or no-cooling emergencies, we typically reach Manhasset homes the same day, and often within a few hours. Scheduling and dispatch are coordinated from our New York City office, with crews serving Manhasset locally. Our phones are answered by a live person 24/7, so you’ll never leave a voicemail during a heating failure.
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 Manhasset Customers Say
"Good work on the heat pump. The first visit missed the real problem, but he came back and found the reversing valve issue. No charge for the return trip."
- Priscilla N."Very thorough check on the whole system before summer. Found a worn belt and swapped it for cheap."
- Jerome F."Furnace short cycled all winter. He found a dirty flame sensor and cleaned it. Twenty minutes and a small bill."
- George Q.