"Called them for Heat Pump Maintenance in Hicksville and they were fast and did a very thorough work."
Sucharu Subedi
Hicksville, NY · Heat pump maintenance
4.8 miles from our Levittown HQ
HVAC repair & installation in Merrick, NY
Merrick's south-shore split-levels and waterfront colonials need salt-resistant equipment and tight envelope sealing. We size by Manual J, never by rule of thumb. We bring trucks fully stocked with parts for every major brand serviced in Merrick, so most repairs are completed on the first visit.
Same-day appointments available
Fully insured
Local crews, fast response
About HVAC service in Merrick
Merrick splits cleanly in two for HVAC purposes. North of Merrick Road you get 1950s and 60s tract housing on forced air; south toward the canals you get older homes, hydronic and steam heat, and equipment sitting in genuine salt-air exposure. We quote those two halves of town differently, because pretending they are the same is how contractors end up replacing a coil twice. ZIP 11566, 4.8 miles from our Levittown shop.
Complete service menu
Every HVAC service we offer in Merrick
All 13 services available across Merrick — usually same-day for repairs, free in-home quotes for installs.
AC Repair in Merrick
cooling · repair
Same-day cooling repairs most days across Long Island.
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AC Installation in Merrick
cooling · install
High-efficiency central AC, sized and installed right.
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Ductless Mini-Split Installation in Merrick
cooling · install
Room-by-room comfort with no ductwork required.
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AC Maintenance & Tune-Up in Merrick
cooling · maintain
Annual tune-ups that prevent breakdowns and extend equipment life.
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Heating Services in Merrick
heating · repair
Furnaces, boilers, and heat pumps — repaired, serviced, replaced.
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Furnace Repair in Merrick
heating · repair
Emergency furnace repair, day or night.
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Furnace Installation in Merrick
heating · install
High-efficiency furnaces that lower your gas bill.
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Boiler Repair & Installation in Merrick
heating · repair
Boiler repair, cleaning and installation — steam, gas & combi.
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Heat Pump Installation in Merrick
heating · install
Heat pump repair and installation — ducted & ductless.
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Water Heater Installation in Merrick
heating · install
Tank, tankless, and heat-pump water heaters — installed right.
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Whole-Home Generator Installation in Merrick
heating · install
Standby power sized and installed on Long Island.
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Emergency HVAC Repair in Merrick
heating · repair
No heat. No AC. No waiting.
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Emergency Boiler Repair in Merrick
heating · repair
Cold radiators. Leaking boiler. Call any hour.
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What we see in Merrick
Common HVAC issues by season
Our trucks roll through Merrick year-round. Here's what tends to fail and when.
Summer in Merrick
- Corroded electrical contacts — Waterfront condensers carry visible salt film within a few summers. A pitted contactor will not pull the compressor in, so the unit hums and does nothing.
- Slow refrigerant leaks from coil pinholes — Corrosion opens tiny holes that bleed refrigerant slowly, then a July heat wave exposes the weak cooling.
- Damp crawl spaces and basements — Canal humidity sits in low spaces and gets pulled into leaky returns. Moisture can make the house feel muggy even when the AC runs.
- Damp air from short cycling — When the thermostat is satisfied but the house still feels damp, the system is shutting off too soon, and blower and sizing corrections fix that where more refrigerant does not.
Winter in Merrick
- One-pipe steam vent failures — Stuck radiator vents and clogged main vents leave some radiators cold while others overheat. Low-water cutoff problems can also lock out the boiler.
- Zoning added to old loops — Additions on older south-Merrick homes were often tacked onto one existing baseboard loop, leaving rooms short on heat until zones are separated.
- Salt-damp boiler rooms — Basements near the canals trap moisture that rusts jackets, flue pipes and controls, shortening boiler life.
- Aging forced-air in tract homes — Furnaces north of Merrick Road are on later generations of equipment and fail on ignitors, sensors and blower motors when demand peaks.
Deep dive · Merrick
Your HVAC company in Merrick, NY
Merrick runs from the bay up past Sunrise Highway, and the AC problems change with the latitude. Waterfront streets fight salt corrosion and humidity; north Merrick colonials fight a second floor that never cools. Both are fixable without replacing a system that still has years left.
Same-day no-cool calls most days
Merrick is a short run from our Levittown shop. Diagnostic is $199 and comes off the bill when you approve the repair.
Humidity that never drops
If the thermostat is satisfied but the house feels damp, the system is short-cycling. Blower and sizing corrections fix it; more refrigerant does not.
Salt-damaged condensers
South Merrick coils and contactors corrode early. We quote coated-coil coastal equipment when the unit is genuinely done.
Hot second floor
Return additions, damper balancing, or one ductless head in the primary bedroom — we start with the cheapest option that actually works.
Boiler, steam, and hydronic heat in Merrick
Our Merrick AC repair and installation pages handle cooling. Heating south of Merrick Road is a different animal — a meaningful share of these homes never converted to forced air, and steam systems need someone who has actually worked on them.
Steam boilers and radiators
Low-water cutoff, sight glass, and vent work on one-pipe steam. We skim dirty boilers rather than immediately condemning them.
Hot water and baseboard
Circulator, zone valve, and expansion tank repairs, plus zoning fixes for additions that were tacked onto a single existing loop.
Boiler replacement
High-efficiency gas boilers sized by heat loss, not by matching the old nameplate — oversizing is the usual inherited mistake here.
Salt-air protection
For canal-side homes we spec coated coils and stainless hardware, and we mount condensers with real clearance above grade.
Why Merrick chooses us
Local Long Island knowledge — not a national chain.
- Just 4.8 miles from your front door — fast trucks, low fuel surcharges
- Trucks fully stocked with common parts — most repairs done first visit
- Honest, upfront flat-rate pricing — no surprise add-ons after the work starts
- Fully insured, EPA 608-certified technicians
- Full scope in writing before you sign
- 1-year warranty on every repair · up to 10-year parts on installs
EPA 608
Every technician
24/7
Emergency dispatch
Fully
insured
COI on request
⌖ HQ · Levittown, NY
9-mile radius
Merrick sits 4.8 miles inside our 9-mile service zone.
Transparent Merrick pricing
Real numbers, before any work starts
No surprise charges, ever. Merrick homeowners see the full repair or install price in writing first.
Diagnostic visit
$199–$199
Waived with approved repair
AC capacitor replacement
$245–$420
Most-common summer fix
Furnace ignition repair
$285–$595
Igniter, flame sensor, board
AC tune-up
$189
Spring-special pricing
Furnace tune-up
$209
Includes safety inspection
Central AC install
From $7,200
$0 down on approved credit
Final pricing in Merrick confirmed in writing after on-site diagnosis. No work begins without your approval.
Brands serviced in Merrick
We service every major HVAC brand
No matter what's installed in your Merrick home — we have parts, training, and dealer relationships for it.
CarrierTraneLennoxRheemGoodmanBryantAmerican StandardYorkMitsubishiDaikinFujitsuLGBoschWeil-McLainBurnhamLochinvarNavienBuderusPeerlessSlant/FinBradford WhiteA.O. Smith
What neighbors say
Long Island homeowners trust us
"Had my furnace maintenance done and I’m very happy with the service. The technician was friendly, professional, and took the time to check everything carefully. He explained what he was doing and made sure the furnace was running properly before he left. I’m in Hicksville and it’s nice to find someone local who is reliable and does good work. I would definitely recommend them for furnace maintenance or HVAC service."
Narendra Subedi
Hicksville, NY · Furnace maintenance
"I had a fantastic experience withLong Island HVAC Repair! My ac system was struggling to cool and I noticed a frozen line near the unit. I called for an emergency repair and they were at my home in 90 mins. The technician was professional, quickly located the leak, and had the system running perfectly in no time. Highly recommend for any local Levittown heating repairs!"
Pabitra Pun Bhattarai
Levittown, NY · Emergency AC repair
FAQs
Merrick HVAC questions, answered
My Merrick home south of Merrick Road has steam heat. Should I convert to forced air?+
Not necessarily. Steam can be repaired and tuned, and a clean, properly vented boiler often has plenty of life left. Forced air in an older south-Merrick house means running ducts through finished walls and ceilings. Many owners keep the radiators and add ductless units for summer cooling instead.
How can I tell if salt air is damaging my Merrick condenser?+
Look for a white or chalky film on the fins, rust on screws and the disconnect box, and a contactor that looks pitted or blackened. Merrick units close to the canals pick this up faster than those further north. Catching it early means a coil rinse or part swap rather than a full replacement.
Why is my Merrick basement damp in summer, and does it affect the AC?+
Humid air from the canals settles into Merrick crawl spaces and basements, and leaky return ducts can pull that moisture into the system. That makes the house feel damp and adds load to the AC. Sealing returns, checking the condensate drain and sometimes adding dehumidification usually helps.
Do you provide HVAC service in Merrick, NY?+
Yes — Merrick (ZIP 11566) is well within our 9-mile service radius. We're just 4.8 miles away, so Merrick addresses usually get same-day appointments.
How fast can you get to my Merrick home for emergency service?+
For complete no-heat or no-cool emergencies in Merrick, our 24/7 dispatch typically gets a technician on the way within 60–90 minutes. Standard same-day service is available almost every day.
What credentials and insurance do you carry in Merrick?+
We're fully insured for residential HVAC work in Merrick and across Long Island, and our technicians are EPA 608–certified. We provide current insurance and certification documentation on request.
How much does AC or furnace repair cost in Merrick?+
Our diagnostic visit in Merrick is a flat $199, waived when you approve the repair. Most common AC and furnace repairs — capacitors, ignitors, flame sensors, contactors, blower motors — run $180–$650 all-in with upfront flat-rate pricing before any work starts. Bigger jobs like refrigerant leak repair or a blower replacement are quoted on the spot, and if a repair no longer makes sense on an older system we'll show you repair-vs-replace numbers side by side.
Do you offer financing for Merrick homeowners?+
Yes — through Synchrony Home Financing. Merrick homeowners can apply for $0 down on approved credit, with monthly plans and full terms in writing before you sign.
What rebates can I get on a new system in Merrick?+
Merrick is in PSEG Long Island's service territory. PSEG runs incentive programs for qualifying cold-climate heat pumps and high-efficiency central AC; amounts and eligibility change by program year and household income, so check PSEG Long Island's current terms before you buy.
Dedicated Merrick service pages
Nearby service areas
Towns near Merrick we also serve
Need HVAC service in Merrick?
Call now and we'll dispatch a nearby technician — usually same-day across Merrick and ZIP 11566.