✓ Open 24 hours, 7 days a week✓ Licensed & insured technicians✓ Flat-rate pricing — no overtime fees
24/7 Dispatch(866) 548-3173
Call NowFree quote
Standard Coverage Zone

HVAC Repair in Port Jefferson, NY11777

Arctic Air Heating & Cooling dispatches licensed, insured heating and air conditioning technicians toPort Jefferson and the 11777 ZIP code 24 hours a day, 7 days a week. Target response time in this service zone: 90-120 minutes.

8Local Techs
90-120 minutesTarget Response
385Jobs Completed
4.6★337 Reviews

We keep licensed, background-checked technicians on the road in Port Jefferson and the surrounding 11777 service area, so a no-cool or no-heat call usually gets a same-visit fix rather than a return trip.

Available Now — 24/7

Talk to a live dispatcher in Port Jefferson

Serving 11777 and Suffolk County — no phone trees, no callback waiting.

  • We test airflow and static pressure, not just refrigerant charge
  • Combustion and carbon monoxide testing on every furnace call
  • Digital condition report sent to you the same day
  • Financing available on qualifying replacements
(866) 548-3173Tap to call — free quote, no obligation

★★★★★4.6 average · 337 verified reviews

  • Licensed & Insured Technicians
  • Background-Checked Crews
  • Upfront Flat-Rate Pricing
  • Same-Day & Next-Day Service
  • No Overtime Charges
  • All Work Warrantied

The Port Jefferson11777 calls we answer most often

If your system is doing any of the following, it is worth a diagnostic before the fault gets more expensive.

Skyrocketing utility bills with no change in usage

No cool air, or air that is barely cooler than the room

Frozen evaporator coil or ice on the refrigerant lines

Short cycling — on and off every few minutes

Squealing or grinding from the blower assembly

Refrigerant leak at a flare or coil connection

Describe your problem — (866) 548-3173

Heating and air conditioning service built around Port Jefferson

Cold winters, humid city summers and a lot of older multifamily buildings that lean on boilers and ductless retrofits. Across the 11777 area that translates into a steady stream of failed capacitors, clogged filters, dying blower motors and refrigerant leaks — most of which we can diagnose and repair in one visit.

Because New York swings between seasons quickly, a lot of our Port Jefferson calls come in the first hot or cold snap of the year — systems that sat idle for months and then get asked to run flat out.

Local equipment profile:New York homes are most often served by boilers, gas furnaces and ductless mini-splits. Cold winters, humid city summers and a lot of older multifamily buildings that lean on boilers and ductless retrofits.

If your system is over ten years old and you have had two repairs in the last two seasons, a replacement comparison is usually worth running even if the current unit still runs.

Typical Port Jefferson service pricing

ServiceTypical Range
Diagnostic / service call$89 – $177
Capacitor replacement$212 – $496
Contactor replacement$224 – $531
Refrigerant leak repair + recharge$378 – $1,062
Blower motor replacement$531 – $1,121
Compressor replacement$1,652 – $3,422
Hot surface igniter / flame sensor$189 – $472
Furnace control board$448 – $1,003
Condensate drain / float switch$153 – $401
Thermostat install (wired or smart)$177 – $531
Duct cleaning (whole home)$448 – $1,062
Full system replacement (installed)$7,080 – $15,340

Market ranges reported for Port Jefferson, NY and the wider Northeast region. Your flat-rate quote is confirmed on site before any work begins.

Services available in 11777

Residential and light commercial, all major brands, all hours.

Air Conditioning Repair in Port Jefferson

Diagnosis and repair for central air conditioners, heat pumps in cooling mode, ductless mini-splits and packaged rooftop units.

Furnace Repair in Port Jefferson

Gas, propane, oil and electric furnace troubleshooting and repair.

HVAC Installation & Replacement in Port Jefferson

Full system replacement and new construction installs with a Manual J load calculation so the equipment is actually sized for your home.

Heat Pump Repair & Service in Port Jefferson

Heat pump diagnosis and repair for both heating and cooling operation, including cold-climate units, defrost board failures, reversing valve problems, auxiliary heat strip faults and refrigerant charge issues.

24/7 Emergency HVAC Repair in Port Jefferson

Around-the-clock response for no-heat in freezing weather, total AC failure during a heat wave, gas smells, carbon monoxide alarms, water flooding from the indoor unit and complete system shutdowns.

Air Duct Cleaning & Sealing in Port Jefferson

Whole-home duct cleaning and aeroseal-style duct sealing to recover lost airflow, reduce dust and lower the load on your equipment.

HVAC Maintenance & Tune-Up in Port Jefferson

Seasonal precision tune-ups that catch failing components before they strand you.

Commercial HVAC Service in Port Jefferson

Service for light commercial and commercial properties including rooftop packaged units, VRF and VRV systems, split systems, make-up air units and building automation controls.

What happens when you call

No forms, no waiting for a callback window. One phone call starts the whole process.

  1. Step 1: Call the dispatch lineYou reach a live dispatcher, not a recording. They confirm your address, the symptom you are seeing and how urgent it is.
  2. Step 2: Get matched to the nearest licensed techDispatch routes your job to the closest available licensed technician who already carries the common parts for your equipment.
  3. Step 3: On-site diagnosis with a flat quoteThe tech tests the system, shows you what failed and gives you a written flat-rate price before any work starts.
  4. Step 4: Approved repair, same visit when possibleMost repairs are finished on the first visit. If a part has to be ordered you get a firm return window, not a maybe.

Servicing Port Jefferson and Suffolk County

Our 11777 coverage zone centres on Port Jefferson and extends to the surrounding communities listed below. Every technician dispatched into this area is licensed, insured and background-checked, and every job carries a workmanship warranty.

What Port Jefferson homeowners say

“Two other companies told me I needed a whole new system. These guys found a $210 capacitor. I will never call anyone else.”

— Marcus T., verified Port Jefferson customer

“Called at 9pm on a Sunday with no heat and a toddler in the house. Tech was here inside an hour, found a failed igniter, had one on the truck.”

— Dana R., verified Port Jefferson customer

Read more Arctic Air customer reviews →

Port Jefferson11777 HVAC questions, answered

Can you give me a price over the phone?

We can give you realistic ranges — and this page lists the ones homeowners in Port Jefferson see most often — but a firm price needs eyes on the equipment. Any company that quotes a final number without seeing the unit is usually quoting low to get through the door.

Do you charge extra for nights, weekends or holidays?

No. Our pricing in New York is the same at 2am on a holiday as it is at 2pm on a Tuesday. Emergency calls are dispatched the same way as scheduled calls and carry no overtime premium.

Do you service commercial and light commercial properties?

Yes. Around Port Jefferson we handle rooftop packaged units, split systems, VRF/VRV installations and building automation faults for offices, retail, restaurants and multi-tenant buildings, including after-hours scheduling so you are not disrupting trade.

What does a new system cost in Port Jefferson?

A complete residential replacement in the 11777 area generally lands between $6,000 and $13,000 installed, depending on capacity, efficiency rating and how much ductwork has to be modified. We always perform a Manual J load calculation first, because an oversized unit costs more to buy and runs worse than a correctly sized one.

Should I repair my system or replace it?

The usual rule of thumb: if the repair costs more than half the price of a replacement and the equipment is over ten years old, replacement generally wins. We will run that comparison with you on site and show you the maths — and if the honest answer is a $180 capacitor rather than a $9,000 system, that is the answer you get.

Is my system low on refrigerant, or is it leaking?

Refrigerant does not get "used up" the way fuel does. If your charge is low, there is a leak somewhere — usually at a flare connection, a schrader core or the evaporator coil. We locate and repair the leak rather than simply topping up the charge, because a top-up alone will fail again.

Need HVAC help in Port Jefferson 11777?

Whatever the make — Rheem, Goodman, Bryant or anything else — call (866) 548-3173. Our crews in the 11777 area service all major residential and light commercial brands.

(866) 548-3173Answered 24 hours a day, 365 days a year
Call (866) 548-3173