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    Serving North Jersey Since 1999

    Where Comfort
    Meets Savings

    Dependable HVAC solutions from your local experts. Top-tier heating, cooling, and renewable energy systems for North Jersey homes and businesses.

    5-10 Year Installation Warranty10-12 Year Parts WarrantyRebates Up To $600
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    Why Air Temp?

    North Jersey's Most Trusted HVAC Company

    Air Temp Service Co. proudly serves North Jersey as your dependable partner for top-tier heating, cooling, and renewable energy solutions. With over 25 years in the industry, we are locally owned, fully licensed, and insured.

    Licensed & Insured

    NJ certified HVAC professionals

    Same-Day Service

    Fast response times

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    Up to 12-year coverage

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    High-efficiency systems

    Family Owned

    Since Jan 1999

    4.7-Star Rated

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    From Our Blog

    Educational Articles

    Expert tips and advice on heating, cooling, and home comfort from the Air Temp Service team.

    Heat Pump vs Oil Heat Cost in NJ: This Winter's Math

    Heat Pump vs Oil Heat Cost in NJ: This Winter's Math

    The federal government's first heating-season survey put New Jersey home heating oil at $6.04 a gallon, $2.23 more than a year ago. We ran the heat pump vs oil heat numbers using federal heat content figures and Mitsubishi's published ratings. Here is what each costs per unit of heat and how to check it against your own delivery tickets.

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    Mitsubishi Hyper Heat Explained: WX vs. GX vs. FX, and Which Your Home Needs

    Mitsubishi Hyper Heat Explained: WX vs. GX vs. FX, and Which Your Home Needs

    The most common worry we hear about heat pumps in North Jersey: they're great until it gets really cold. That was fair 15 years ago. It isn't true of current equipment, and the cleanest proof is walking through Mitsubishi's three single-zone tiers with the actual published numbers: the value WX-Series, the GX with H2i, and the flagship FX with H2i sumo. Same brand, same 12,000 BTU class, three very different winter machines, including one that holds 100% of its rated heat at 10 below zero

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    Replace Your Heating System Before Winter: The Fall Window in North Jersey

    Replace Your Heating System Before Winter: The Fall Window in North Jersey

    There's a version of this decision that happens in October, with quotes on the table and a calendar that still has room. And a version that happens in January, at 6 a.m., with the house at 52 degrees and whoever can get there first. Same equipment, same money, completely different experience. Here's how to tell whether your system belongs in this conversation at all, what the 50 percent rule gets right and misses, the current New Jersey rebate picture, and why the fall window matters more than most homeowners realize

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    Furnace Won't Turn On? What to Check on the First Cold Night

    Furnace Won't Turn On? What to Check on the First Cold Night

    It's 11 p.m., the house has dropped to 58 degrees, you pushed the thermostat up an hour ago, and nothing has happened. The first cold night is when North Jersey furnaces reveal what they did all summer. If your furnace won't turn on, there's a decent chance you can fix it in ten minutes, and a real chance it needs a technician. Here's how to tell the difference: the two safety situations where you don't troubleshoot at all, the eight-item checklist in order, and what each symptom is actually telling you

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    Furnace Tune-Up Cost in NJ: What It Includes and Why Fall Is the Right Time

    Furnace Tune-Up Cost in NJ: What It Includes and Why Fall Is the Right Time

    It's the least dramatic service in home comfort: no breakdown, no emergency, just a technician spending an hour with a furnace that seems fine. Which is exactly why so many homeowners skip it, right up until a January morning when the house is 54 degrees. Here's what drives furnace tune-up cost in NJ, what a proper tune-up actually includes, what it isn't, the honest math on skipping it, and why the smart booking window is September and October.

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    The Pre-Winter HVAC Checklist for North Jersey: 10 Things to Do Before the First Cold Night

    The Pre-Winter HVAC Checklist for North Jersey: 10 Things to Do Before the First Cold Night

    Every year it happens the same way: a warm September slides along, then one October night drops into the 30s, half of North Jersey turns the heat on for the first time, and the no-heat calls start. Almost everything on that list was preventable in September. Here's the pre-winter HVAC checklist we'd run in our own homes: ten items, most of them free, from the first test run and filter change to the tune-up booking and the CO detector check, ordered so the easy ones come first

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    Mitsubishi H2i vs. Daikin Atmosphera: Which Cold Climate Mini-Split Wins for North Jersey?

    Mitsubishi H2i vs. Daikin Atmosphera: Which Cold Climate Mini-Split Wins for North Jersey?

    Earlier in this series we compared the value lines and told you the truth: none of them is a cold climate machine. This is what happens when you move up to the equipment built for exactly that job: the Mitsubishi MSZ-FX12NL/MUZ-FX12NLHZ hyper-heating flagship against Daikin's Atmosphera FTXM12WVJU9/RXM12WVJU9. We pulled the official submittal sheets for both, and this time the verdict is not close: 100% of rated heating at 10 below zero, guaranteed operation to minus 22, and an efficiency sweep.

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    Trane 5TTR5024 vs. Bryant Preferred: Which 2-Ton Central AC Wins for North Jersey?

    Trane 5TTR5024 vs. Bryant Preferred: Which 2-Ton Central AC Wins for North Jersey?

    The series so far has covered ductless matchups, but plenty of North Jersey homes need the other answer: a central system feeding real ductwork. So here's the head-to-head: the Trane XR15, the 5TTR5024 condenser with the T5TEM4B02AC21SA air handler, against Bryant's Preferred series two-ton, the 146SAN02400W. Both run the new R-454B refrigerant. The Bryant wins the efficiency headline, the Trane's case is built on what shows up in year eight, and fall timing makes this decision smarter than most people realize

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    Mitsubishi MUZ-WX12NL vs. LG KUSAE121A: Which 12,000 BTU Mini-Split Wins for North Jersey?

    Mitsubishi MUZ-WX12NL vs. LG KUSAE121A: Which 12,000 BTU Mini-Split Wins for North Jersey?

    You have two quotes on the kitchen counter: the Mitsubishi MUZ-WX12NL/MSZ-WX12NL single-zone system we install, and LG's value-line KUSAE121A/KNSAE121A. Both are 12,000 BTU class wall-mounted mini-splits on a standard 208/230V circuit, so what actually separates them? Here's the honest spec-by-spec breakdown from both manufacturers' engineering data: a dead heat on headline efficiency, a real gap in rated capacity, two different heating strengths, and the warranty path that decides it.

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    Ice on Your AC Line? Why Your AC Freezes Up and What to Do

    Ice on Your AC Line? Why Your AC Freezes Up and What to Do

    There's something deeply wrong about walking outside on a 92 degree afternoon and finding your air conditioner wearing a coat of ice. If you have ice on your AC line, your system hasn't been working harder for you, it's effectively stopped working, and every minute it runs is a minute it can damage itself. Here's what to do first (turn it off), why coils freeze in the middle of summer, and how to tell whether this is a filter problem or a phone-call problem.

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    R-410A Cost in 2026: Why Your AC Repair Bill Went Up

    R-410A Cost in 2026: Why Your AC Repair Bill Went Up

    You called for a refrigerant top-off, the tech quoted a number, and you had to ask him to repeat it. If your AC repair bill looks nothing like the one you paid three years ago, you're not being taken for a ride. The R-410A cost picture changed underneath the whole industry. Here's what actually happened, what refrigerant costs now, why you can't just switch your system to the new stuff, and the point where feeding an old system stops making sense.

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    HVAC technician inspecting equipment inside a residential air handling unit

    AC Repair Costs in NJ: Normal vs. Emergency

    Your AC quit, it's 90 degrees, and you're doing two kinds of math at once: what will this cost, and can it wait until Tuesday? Both have real answers. Here's what AC repairs actually run in NJ in 2026, why the invoices look higher this year, and an honest line between a genuine emergency and a problem that can wait for a normal appointment, because after-hours calls commonly run 1.5 to 2 times the standard rate.

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    Why Is Your Electric Bill So High This Summer?

    Why Is Your Electric Bill So High This Summer?

    It happens every July. The bill lands, you expect the usual summer bump, and the number is a lot bigger than the usual bump. If you're dealing with a high electric bill this summer, there are real reasons that go beyond running the AC more, and in New Jersey the rate picture makes it worse. Here's where the money is actually going: the thermostat math, the silent efficiency drains, and the point where a high bill stops being a habit and starts being a symptom.

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    AC Tune-Up Cost in NJ: Is a Mid-Summer Service Still Worth It?

    AC Tune-Up Cost in NJ: Is a Mid-Summer Service Still Worth It?

    It's the middle of a North Jersey July, your AC has been running hard for weeks, and you're wondering if it's quietly struggling, or you just never booked that spring tune-up. Is it too late? No. A mid-summer service still catches the problems that turn into an emergency call during the worst heat of August. Here's what an AC tune-up includes, what it costs in North Jersey, and why getting one now still pays off with plenty of cooling season left.

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    NJ HVAC Rebates 2026: How Much You Can Actually Save

    NJ HVAC Rebates 2026: How Much You Can Actually Save

    New Jersey HVAC rebates in 2026 are some of the strongest in the country, and a North Jersey homeowner can stack several on one project. But the rules changed this year: the federal credit everyone counted on is gone, and the real money now lives in state and utility programs most people don't know how to combine. Here's how the NJ Whole Home program (from $2,000 up to $7,500), PSE&G, and JCP&L rebates actually stack, what the $7,500 really requires, and how to claim them without the headache.

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    Central Air Cost to Install in NJ: 2026 Price Guide

    Central Air Cost to Install in NJ: 2026 Price Guide

    You asked a few contractors for a price on central air and got very different numbers: a vague "around ten grand," one close to thirty thousand, and one who wouldn't quote at all without seeing the house. So what does central air actually cost in NJ? Here's an honest 2026 breakdown with Air Temp's real upfront pricing, the things that move a quote up or down, and the rebates that bring the number down.

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    Hot Upstairs, Cold Downstairs: How to Cool a Two-Story Home

    Hot Upstairs, Cold Downstairs: How to Cool a Two-Story Home

    The living room is perfect, but the upstairs bedrooms are a sauna by 11 p.m. If you've wondered how to cool the upstairs of a two-story home while the first floor stays comfortable, you're dealing with one of the most common comfort complaints in North Jersey, and it's fixable. Here's why heat collects upstairs (physics, a hot attic, one downstairs thermostat, weak ducts), the free fixes to try first, and when zoning or a dedicated upstairs unit is the real answer.

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    AC Running But the House Is Still Hot? Here's Why

    AC Running But the House Is Still Hot? Here's Why

    It's 95 degrees out, the thermostat is set to 72, you can hear the AC running, and the house still won't cool. If your AC is running but not cooling, you're not imagining it, and it's not always a big repair. Here are the most common causes, sorted by what you can check yourself in ten minutes (thermostat, filter, outdoor unit) and what needs a North Jersey technician (refrigerant, frozen coil, failed capacitor).

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    Why Is My House So Humid With the AC Running?

    Why Is My House So Humid With the AC Running?

    The thermostat says 72, but the house feels like a damp basement, cool and clammy at the same time, with windows fogging at the edges. If you're asking why your house is so humid with the AC running, the answer is that cooling and dehumidifying are two different jobs, and your system is doing one but not the other. Here's why it happens (usually an oversized system that short-cycles), what you can check yourself, and when a North Jersey home needs a dehumidifier.

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    How Long Does an AC Last? Repair vs. Replace in North Jersey

    How Long Does an AC Last? Repair vs. Replace in North Jersey

    It is the third 90-degree afternoon in a row, and the AC just quit. The tech gives you a number for the repair, then mentions it is not the only old part down there, and suddenly you are doing math you never wanted to do. Here is how to decide whether to repair or replace your AC, using the 50% rule, the age-times-repair test, the R-22 problem, and what 2026 NJ rebates take off a new system.

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    How to Add AC to an Older Home Without Ductwork in North Jersey

    How to Add AC to an Older Home Without Ductwork in North Jersey

    It is the third 90-degree afternoon in a row, and the AC just quit. The tech gives you a number for the repair, then mentions it is not the only old part down there, and suddenly you are doing math you never wanted to do. Here is how to decide whether to repair or replace your AC, using the 50% rule, the age-times-repair test, the R-22 problem, and what 2026 NJ rebates take off a new system.

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    What to Expect During Heat Pump Installation: A North Jersey Homeowner's Guide

    What to Expect During Heat Pump Installation: A North Jersey Homeowner's Guide

    The install truck pulls into your driveway at 7:45 a.m. Three guys in navy uniforms unload tools, drop cloths, and a refrigerant manifold while you stand in the kitchen wondering what's about to happen to your house. Here's the full heat pump installation process from initial assessment through final commissioning, with realistic timelines for North Jersey homes, common surprises, and what to prep before the crew shows up.

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    HVAC Safety Hazards: A North Jersey Homeowner's Guide to Staying Safe

    HVAC Safety Hazards: A North Jersey Homeowner's Guide to Staying Safe

    A scenario that plays out in older North Jersey homes every winter: a carbon monoxide detector goes off at 3 a.m., the family makes it out, and the source turns out to be a cracked heat exchanger in a furnace nobody had inspected in years. Here's what every North Jersey homeowner needs to know about HVAC safety hazards, ranked by severity, with prevention steps that actually work.

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    Signs You Need a New Air Conditioner: A North Jersey Homeowner's Guide

    Signs You Need a New Air Conditioner: A North Jersey Homeowner's Guide

    The AC has been running since 10 a.m. and the thermostat still reads 78. The electric bill in July was almost double what it was last summer. The upstairs feels like a different climate from the first floor. If this sounds familiar, your air conditioner is telling you something. Here are the seven signs every North Jersey homeowner should know before the next heat wave.

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    Ductless vs Central Air: A North Jersey Homeowner's Guide

    Ductless vs Central Air: A North Jersey Homeowner's Guide

    The central AC works fine on the first floor. The upstairs bedrooms run 8 degrees warmer. The finished attic over the garage feels like a different climate. Should you replace the whole system, or add a ductless mini-split to fix the one problem room? Here's a North Jersey homeowner's guide to ductless vs central air, including cost comparisons, when to combine both, and what works in older housing stock.

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    How Your HVAC System Affects Sleep: A North Jersey Homeowner's Guide

    How Your HVAC System Affects Sleep: A North Jersey Homeowner's Guide

    The upstairs bedroom in a North Jersey colonial can run 8 to 10 degrees hotter than the first floor on a humid July night. That's not bad luck, it's an HVAC problem. Here's how your heating and cooling system shapes your sleep, what the research actually says about bedroom temperature and humidity, and how to fix the bedroom that runs too hot for rest.

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    HVAC Terms Explained: A North Jersey Homeowner's Glossary

    HVAC Terms Explained: A North Jersey Homeowner's Glossary

    Reading an HVAC quote can feel like reading a foreign language. SEER2, AFUE, MERV, BTU, tonnage, Manual J, R-410A. Here's a plain-English glossary of the HVAC terms North Jersey homeowners actually need to know, grouped by category, with what each one means for your home, your bill, and your buying decision.

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    Summer HVAC Prep in North Jersey: What to Do Before the First 90-Degree Weekend

    Summer HVAC Prep in North Jersey: What to Do Before the First 90-Degree Weekend

    The first real heat wave in North Jersey shows up the same way every year. A pleasant stretch of 70s, then a Friday afternoon that jumps to 91 with sticky air. That's when an AC that sat untouched all winter starts struggling. Here's a North Jersey homeowner's checklist for getting your system ready before the first 90-degree weekend, including spring tune-ups, ductwork inspection, humidity control, and when repair stops making sense.

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    How to Choose an HVAC Company in NJ: A North Jersey Homeowner's Vetting Guide

    How to Choose an HVAC Company in NJ: A North Jersey Homeowner's Vetting Guide

    Three quotes spread across the kitchen table, three very different numbers, and no clear way to tell which contractor is legit. Here's a North Jersey homeowner's guide to vetting HVAC companies the right way: NJ license verification, manufacturer certifications that actually mean something, what every in-home estimate should include, and the red flags that should kill a deal before you sign.

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    "Air Temp gave me a price that was far below competitors for the same equipment. They chose the more difficult (but less visible) installation location at no additional cost. Highly recommended."

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    "Air Temp provided VERY competent hard-working installers for our 6 indoor mini splits and 2 outdoor units by Fujitsu. They completed the job on schedule, the system works well, and is QUIET."

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    Proudly Serving North Jersey

    We provide fast, reliable HVAC service to Passaic, Bergen, Essex, Morris, Union, and Hudson Counties.

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    Air Temp proudly provides heating, cooling, and ductless services throughout North Jersey including communities across Passaic, Essex, Bergen, and Morris Counties, with frequent service in Little Falls, Wayne, Montclair, Cedar Grove, Totowa, Clifton, Ridgewood and surrounding areas.

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