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Stay warm all winter ยท Since 1990

Heating & Furnace Services in Northern NJ & NYC

Fast furnace and heater repair, right-sized heating installation, and maintenance that catches problems in October rather than January. When the heat goes out, ICS gets it back on.

Heat Back On โ€” Fast

Three and a half decades keeping Northern NJ and NYC warm.

35+Years in business
12,000+Systems installed
300+Five-star reviews
24/7Emergency heat
All makes & models ยท Licensed & insured
NATE-Certified Technicians
Mitsubishi Electric Diamond Contractor
Cold-Climate Heat Pump Certified
Licensed & Insured ยท #19HC00444000
More on the ICS YouTube channel
Watch ยท Know the warning signs

Your Furnace Is Speaking to You

Strange sounds, weak heat, a flame that is the wrong colour. A furnace tells you it is in trouble weeks before it quits. Here is what those signals mean and which ones cannot wait.

Heating repair, installation & maintenance

Reliable Heat When You Need It Most

Northern New Jersey heats with everything. A 1920s two-family in Belleville runs one-pipe steam. A 1960s split-level in Paramus has a gas furnace in an unconditioned attic. A new build in Randolph runs a cold-climate heat pump with electric backup. Each fails differently, and each needs a technician who has seen it before.

ICS repairs, installs and maintains all of them. We have been doing it since 1990, we have completed more than 12,000 installations, and our technicians are NATE-certified across gas, hydronic and heat pump work.

What separates a good heating job from a cheap one is what happens before the equipment is chosen. We measure the heat loss and the duct static pressure first. An oversized furnace short-cycles, wears out its heat exchanger early and leaves the far bedroom cold anyway.

  • Furnace, boiler and heat pump repair on every major brand
  • Replacements sized on a load calculation, not the old nameplate
  • 24/7 emergency heat across Northern NJ and New York City
  • Financing available on system replacement
(866) 749-6331

Systems We Service

Gas & Electric FurnacesRepair, replacement and annual combustion testing.
Steam & Hot Water BoilersNear-boiler piping, venting, traps and controls.
Heat PumpsCold-climate systems that hold output in a real winter.
Ductless Mini-SplitsZoned heat for additions and rooms the ducts never reached.
What we do

Our Heating Services

From a no-heat call at two in the morning to a planned replacement in September, every heating job ICS takes on across Northern New Jersey and New York City.

Furnace & Heater Repair

Banging on start-up, a burner that lights and drops out, weak air at the register. We trace the fault to the component rather than swapping parts until it stops.

Heating Installation

Furnace and heat pump replacement sized on a Manual J load calculation, with the existing ductwork measured before the equipment is picked.

Maintenance & Tune-Ups

Combustion analysis, heat exchanger inspection, static pressure and a filter that actually fits. Booked in autumn, before the first cold week.

Boiler Service

Steam and hot water. Wet steam, short-cycling on pressure, a radiator that never gets hot โ€” usually venting or near-boiler piping, not the boiler.

Heat Pumps & Electrification

Cold-climate heat pump installation from a certified contractor, including the dual-fuel setups that make sense on an existing gas furnace.

Ductless Heating

Mitsubishi Electric mini-splits, wall units and ceiling cassettes, for additions, attic conversions and older houses with no ductwork to work with.

Why choose ICS

Heat Done Right the First Time

Improving comfort while reducing operating cost. That is the whole job, and it is why we measure before we quote.

24/7 Emergency

Lose heat at 2am and someone answers. Round-the-clock response so a January failure is a bad night, not a bad week.

All Brands

NATE-certified technicians who service every make and model of furnace, boiler and heat pump, whoever installed it.

We Measure First

Load calculation, static pressure, combustion analysis. Numbers decide the equipment, not the size of the box that came out.

Financing Available

Replacement rarely happens at a convenient moment. Financing keeps a failed system from becoming a worse decision.

How we work

From No Heat to Comfort

  1. Call or Book

    Reach us any hour at (866) 749-6331, or book online. No-heat calls are triaged ahead of scheduled work.

  2. Diagnose

    A technician tests the system running: gas pressure, temperature rise, static pressure. You see the readings, not just the conclusion.

  3. Repair or Replace

    Options laid out side by side with what each one fixes and what it does not. Nothing proceeds until you approve it.

  4. Verify & Maintain

    The system is re-tested before we leave, and a maintenance plan keeps the readings on record year to year.

No Heat? We’re On It.

Emergency furnace and heating repair, or a free estimate on a replacement, across Northern New Jersey and New York City โ€” 24/7.

Good questions

Heating FAQs

How much does a new furnace cost in NJ?

It depends on four things: the heat loss of the house, the condition and size of the existing ductwork, the efficiency tier you choose, and how hard the equipment is to get in and out. A tight attic install with undersized returns costs more than a basement swap with good ducts, for the same furnace. We measure all four and give you an itemised quote before anything is ordered, with financing available.

How long does a furnace last?

Fifteen to twenty years for a gas furnace that was sized correctly and serviced annually. Boilers often go longer. Heat pumps run twelve to fifteen. What shortens all three is the same thing: an oversized system short-cycling against restricted ductwork. That is why the sizing conversation matters more than the brand.

What are the signs my furnace needs repair?

Banging on start-up, a squeal from the blower, a yellow or lazy burner flame instead of crisp blue, heat that arrives weak or uneven, the system starting and stopping every few minutes, or any burning smell after the first week of the season. Short-cycling and a yellow flame both need looking at promptly โ€” one wears out the heat exchanger, the other is a combustion problem.

Should I repair or replace my heating system?

Age and the nature of the fault, in that order. Under twelve years with a failed igniter or capacitor: repair, easily. Over fifteen with a cracked heat exchanger or a failed compressor: replacing is usually the better money, and it is the right moment to fix whatever the ductwork has been doing wrong for two decades. We give you both numbers and say which one we would pick.

Why is my furnace blowing cold air?

Most often the burners are not staying lit and the blower is running out the residual heat, which points at the flame sensor, the igniter or a pressure switch tripping on a blocked flue or intake. It can also be a thermostat set to fan on rather than auto, which is worth checking before you call. If the flue or intake is blocked, do not keep resetting it.

How often should I service my heating system?

Once a year, in autumn, before the season starts. Annual service keeps the combustion side safe, keeps the manufacturer’s parts coverage intact, and catches the failures that otherwise show up on the coldest night when everyone is calling at once. Our maintenance plan holders get scheduled first.

Do you install heat pumps, and are they worth it here?

Yes, and ICS is cold-climate heat pump certified. A modern cold-climate unit holds useful capacity well below freezing, which is the whole question in New Jersey. It heats and cools from one system and may qualify for state and utility incentive programs. Where the house has an existing gas furnace in good shape, a dual-fuel setup often makes more sense than a full swap.

What heating systems do you service?

Gas and electric furnaces, steam and hot water boilers, heat pumps, ductless mini-splits and rooftop units, residential and commercial, across Northern New Jersey and New York City. If it makes heat and it is in our footprint, we work on it.

Where we work

Heating Service Areas

Dispatched from Carlstadt, Belleville and Englewood Cliffs across nine New Jersey counties and the five boroughs.

Have a question?

Let Us Know How We Can Help

Request heating service or a free estimate and our team will get back to you, or call any hour.

(866) 749-6331Call or text โ€” 24/7 emergency heat
mail@icshvac.comEmail our team
Carlstadt (shop & warehouse)736 Gotham Parkway, Carlstadt, NJ 07072
Belleville (main office)267 Cortlandt Street, Belleville, NJ 07109
Englewood Cliffs120 Charlotte Place, Suite 201, Englewood Cliffs, NJ 07632
Licensed & insuredNJ Master HVACR #19HC00444000

Our latest Facebook posts

Our latest Facebook posts

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Leaky ductwork can w

Leaky ductwork can waste conditioned air before it ever reaches your rooms. Proper duct sealing helps improve airflow, reduce energy loss, and create more consistent temperatures throughout your home.

Have questions about your HVAC system? Contact ICS today.

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Indoor humidity affe

Indoor humidity affects more than comfort. Too much moisture can make your home feel sticky, while air that is too dry may cause irritation and discomfort.

Proper HVAC operation and humidity control can help create a healthier, more comfortable indoor environment throughout the year.

Schedule HVAC service with ICS today:
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๐ŸŒฟ Cleaner indoor

๐ŸŒฟ Cleaner indoor air can make your home feel more comfortable and healthier. Changing filters, improving airflow, and scheduling routine HVAC maintenance can help reduce dust, allergens, and other airborne pollutants.

Take a simple step toward better indoor air quality with ICS.

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Your HVAC system oft

Your HVAC system often gives warning signs before a bigger problem develops. Test your thermostat, listen for unusual sounds, watch for moisture near drain lines, and keep the outdoor unit clear.

A quick response can help protect your comfort, prevent avoidable damage, and support reliable system performance all season long.

Schedule HVAC service with ICS today:
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๐Ÿ“ž 866-654-4033

#ICSHVAC #HVACTips #HVACSafety #HomeComfort #hvacservice #PreventiveMaintenance #heatingandcooling #airconditioning
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