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 Merrick, NY
HVAC work in Merrick comes down to two things: homes built between the 1950s and 1970s, and salt air off the South Shore. Most of our calls here involve split-levels and ranches with original ductwork that was sized for heat, not air conditioning. That means retrofits, zoning, and humidity control are the core of what we do in Merrick. We’re Dalton Heating & Air, a Garrison Partners company operating under The Garrison Standard since 2003. Every job gets a written price before any work starts, a written guarantee on every repair, and a live person on the phone 24/7. Call us at (516) 559-4840.
Why Merrick Homes Are Different
Merrick’s housing stock is overwhelmingly single-family and mid-century: split-levels, ranches, and colonials with basements. The ductwork in these homes was almost always engineered for a heating-only system. When air conditioning got added later, the original ducts couldn’t move enough air to cool the upper floors properly. That’s why we see so many uneven-temperature complaints here – one floor freezing, another still muggy. The fix is usually zoning, duct modification, or in homes without any ductwork at all, a ductless heat pump system.
The coastal factor changes things too. Homes south of Merrick Road sit close enough to the water that salt air corrodes outdoor condenser coils and electrical connections fast. We regularly see AC condensers south of Merrick Road needing coil replacement within 5 to 7 years, while the same unit a mile north can run 12 to 15 years before corrosion becomes an issue. Salt eats terminals, contactors, and fins. It’s the single biggest reason AC repairs in Merrick are more frequent than in inland Nassau County towns. When we open a condenser here, we expect corrosion, and we price the work with that in mind.
Summers in Merrick are humid. Dehumidification matters as much as raw cooling. A system that’s undersized or has dirty coils will hit the right temperature but leave the house feeling damp. We size and service equipment in Merrick specifically for latent heat removal, not just temperature drop. That’s the difference between a system that runs and a system that makes the house comfortable.
Styles & brands we work with







Our Main Merrick Services
AC Repair in Merrick
When an AC unit fails in Merrick, the cause is usually one of three things: a corroded condenser electrical connection from salt air, a failing capacitor, or low refrigerant from a slow leak in the coil. We diagnose the exact fault, put a written price in front of you before any work starts, and complete most repairs on the first visit. Every repair carries a full-year written guarantee. If the same part fails within 365 days, we return at no charge – that’s the 365-Day Done Right Promise, and it applies to every AC repair we do in Merrick. AC Repair in Merrick

Heat Pump Installation in Merrick
Merrick homes without central ductwork – or with ducts too small for cooling – are prime candidates for heat pump installation. A ductless heat pump handles both heating and cooling, which matters in a town where summers demand dehumidification and winters still drop below freezing. We size the system to the actual heat load of the home, not a rule of thumb. Every heat pump installation includes a written fixed price before equipment is ordered, a set install date, and factory-trained technicians who service Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard equipment. Heat Pump Installation in Merrick

Furnace Repair in Merrick
Furnaces in Merrick run hard from November through March, and the older units in 1950s and 1960s homes wear out igniters, flame sensors, and inducer motors at predictable intervals. Most furnace repairs in Merrick run $150 to $450 depending on the part. We stock common replacement components for major brands on the truck, so a no-heat call usually gets resolved same-day. Every repair is priced in writing before we start, and guaranteed in writing for a full year. Furnace Repair in Merrick

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 Merrick
Our technicians are factory-trained on nine major brands, including York, Daikin, and American Standard. That training matters in Merrick, where salt air accelerates part failure and the wrong replacement component shortens the life of the system. We stock common parts for these brands locally, which keeps most repairs moving same-day. See our brands for the full list.
See the difference
Before
After
Before
After
Before
AfterPricing for HVAC Company in Merrick, NY
| Service | Typical range in Merrick |
|---|---|
| AC repair | $150 – $650 |
| AC capacitor replacement | $150 – $350 |
| AC condenser coil repair | $300 – $650 |
| Refrigerant recharge | $200 – $450 |
| AC installation | $3,500 – $7,500 |
| Furnace repair | $150 – $700 |
| Igniter replacement | $150 – $400 |
| Flame sensor replacement | $150 – $300 |
| Inducer motor replacement | $400 – $700 |
| Furnace installation | $3,500 – $7,500 |
| Tune-up | $80 – $200 |
Prices in Merrick push toward the higher end when salt corrosion has spread to multiple components, or when a home south of Merrick Road needs coil work done every few years. What never changes is this: the price we quote in writing is the price you pay. No shift at the door, no surprise line item. That’s The Garrison Standard, and we hold to it on every job.
Neighborhoods We Serve in Merrick
We work throughout Merrick, from the waterfront blocks south of Merrick Road up to the North Merrick line. Our typical response time for a repair call anywhere in Merrick is same-day when called before early afternoon, and we schedule installations on a firm date with a fixed written price.
- South Merrick (south of Merrick Road)
- North Merrick
- Merrick Woods
- The Harbour area
- Carman Estates
Service Area – Cities Near Merrick
We also serve homeowners in neighboring Nassau County communities. If you’re in Freeport, NY, Wantagh, NY, Uniondale, NY, or Baldwin, NY, the same written pricing and full-year repair guarantee applies. Same crews, same standard.
Serving Merrick, NY - Our Local Coverage Area
We’re based in the Merrick 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 Merrick
Most repair calls in Merrick are handled same-day when you call before early afternoon. Emergency no-heat and no-cooling calls are dispatched 24/7. Call (516) 559-4840 and you’ll speak to a live person, not a voicemail queue.
Most HVAC replacements and installations in the Town of Hempstead require a permit. We handle the paperwork for every installation we do in Merrick. Repairs and maintenance typically do not require permits. We’ll tell you exactly what applies to your job before any work starts.
Yes. Condensers south of Merrick Road routinely show coil and electrical corrosion within 5 to 7 years, while the same equipment a mile north can last twice that long. We factor the home’s distance from the water into every repair diagnosis and every installation recommendation in Merrick.
If you need HVAC work in Merrick, call us at (516) 559-4840 for a free estimate. You’ll get a written price, a firm arrival window, and a full-year written guarantee on every repair.
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 Merrick Customers Say
"Furnace tune-up. He cleaned the burners and flame sensor, tested for carbon monoxide, and gave me a clear report."
- Lisa M."Installed a heat pump to replace an old oil furnace. Three clear quotes and the install crew was tidy."
- Cheryl B."Solid install. Permit inspection took a few extra days, but they handled it."
- Paul L.