"Came out same day in 95° heat. Diagnosed a bad capacitor in 15 minutes and had us cool again before dinner. Fair price, super clean work."
Sarah K.
Garden City, NY · AC Repair
6.5 miles from our Levittown HQ
HVAC repair & installation in Uniondale, NY
Uniondale homes near Hofstra and the Coliseum often have finished basements and additions that throw off original duct sizing. We re-engineer airflow so every room hits setpoint. We bring trucks fully stocked with parts for every major brand serviced in Uniondale, so most repairs are completed on the first visit.
Same-day appointments
Licensed & insured
Local crews, fast response
About HVAC service in Uniondale
Long Island HVAC Repair provides licensed, same-day HVAC service to Uniondale, NY (ZIP 11553) and surrounding neighborhoods like Hofstra borders, Mitchel Field, Uniondale Village. From our Levittown HQ just 6.5 miles away, our NATE-certified technicians handle AC repair & installation, furnace and boiler service, heat pumps, ductless mini-splits, water heaters, and seasonal tune-ups — all backed by upfront flat-rate pricing and a 1-year warranty.
Complete service menu
Every HVAC service we offer in Uniondale
All 9 services available across Uniondale — same-day for repairs, free in-home quotes for installs.
AC Repair in Uniondale
cooling · repair
Same-day cooling repairs across Long Island.
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AC Installation in Uniondale
cooling · install
High-efficiency central AC, sized and installed right.
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Ductless Mini-Split Installation in Uniondale
cooling · install
Room-by-room comfort with no ductwork required.
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AC Maintenance & Tune-Up in Uniondale
cooling · maintain
Annual tune-ups that prevent breakdowns and extend equipment life.
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Furnace Repair in Uniondale
heating · repair
Emergency furnace repair, day or night.
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Furnace Installation in Uniondale
heating · install
High-efficiency furnaces that lower your gas bill.
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Boiler Repair & Installation in Uniondale
heating · repair
Boiler installation on Long Island — steam, gas & combi.
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Heat Pump Installation in Uniondale
heating · install
Year-round comfort with one efficient system.
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Water Heater Installation in Uniondale
heating · install
Tank, tankless, and heat-pump water heaters — installed right.
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What we see in Uniondale
Common HVAC issues by season
We regularly service Uniondale year-round. Here's what tends to fail and when.
Summer in Uniondale
- Failed AC capacitors — the #1 summer call. We carry every common size on the truck.
- Frozen evaporator coils from dirty filters, clogged returns, or low refrigerant.
- Condensate drain backups — Long Island humidity overwhelms clogged drain lines fast.
- Salt-air corrosion on outdoor condensers — especially relevant near Uniondale.
Winter in Uniondale
- No-heat emergencies — failed igniters, flame sensors, draft inducers. Same-day or 24/7.
- Boiler short-cycling — common on older oil and steam boilers across Uniondale.
- Cold radiators or rooms — air-bound zones, failed circulator pumps, or stuck zone valves.
- Frozen condensate lines on high-efficiency furnaces during deep cold snaps.
Why Uniondale chooses us
Local Long Island knowledge — not a national chain.
- Just 6.5 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
- NY State licensed, fully insured, NATE-certified technicians
- We file PSEG and NYSERDA rebate paperwork on your behalf
- 1-year warranty on every repair · up to 10-year parts on installs
15+
Years serving LI
5,000+
Homes serviced
Licensed
& insured
NY State
⌖ HQ · Levittown, NY
9-mile radius
Uniondale sits 6.5 miles inside our 9-mile service zone.
Transparent Uniondale pricing
Real numbers, before any work starts
No surprise charges, ever. Uniondale homeowners see the full repair or install price in writing first.
Diagnostic visit
$99–$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 financing available
Final pricing in Uniondale confirmed in writing after on-site diagnosis. No work begins without your approval.
Brands serviced in Uniondale
We service every major HVAC brand
No matter what's installed in your Uniondale 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
"Replaced our 1958 boiler with a high-efficiency condensing unit. Crew was meticulous — neat piping, took the time to explain everything. Heating bill dropped 30%."
Mike D.
Huntington, NY · Boiler Installation
"Mitsubishi mini-splits in three rooms. Quiet, efficient, and they handled all the rebate paperwork. Could not be happier."
Anna R.
Massapequa, NY · Mini-Split Installation
FAQs
Uniondale HVAC questions, answered
Do you provide HVAC service in Uniondale, NY?+
Yes — Uniondale (ZIP 11553) is well within our 9-mile service radius. We're just 6.5 miles away, so most Uniondale addresses get same-day appointments.
How fast can you get to my Uniondale home for emergency service?+
For complete no-heat or no-cool emergencies in Uniondale, 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 HVAC services do you offer in Uniondale?+
Every service we offer — AC repair, AC installation, furnace repair & install, boiler service, heat pump install, ductless mini-splits, water heater install, and seasonal tune-ups — is fully available in Uniondale.
Do you service my brand of equipment in Uniondale?+
We service all major brands in Uniondale including Carrier, Trane, Lennox, Rheem, Goodman, Bryant, Mitsubishi, Daikin, Fujitsu, Weil-McLain, Burnham, Lochinvar, Navien, and more.
Are you licensed and insured to work in Uniondale?+
Yes. We're fully NY State licensed and insured for residential HVAC work in Uniondale and across Nassau County. We pull permits and coordinate inspections on every install that requires them.
Do you offer financing for Uniondale homeowners?+
Yes — through Synchrony Home Financing. Uniondale homeowners qualify for $0-down installs, 0% APR for 12 months on approved credit, and low-monthly plans up to 120 months.
What rebates can I get on a new system in Uniondale?+
Uniondale is in PSEG Long Island's service territory, so rebates of up to $1,000 on qualifying high-efficiency AC and heat pumps are available. NYSERDA programs add another $400–$1,200, and federal IRA tax credits stack on top.
Nearby service areas
Towns near Uniondale we also serve
Need HVAC service in Uniondale?
Call now and we'll dispatch a technician — usually same-day across Uniondale and ZIP 11553.