Emergency HVAC Service in NJ. 24/7.
No heat, no AC, burning smell, strange noises. Our phones are answered 24/7, including holidays.
Call 908-577-5579 NowA failed furnace in January is not something that can wait. Neither is an AC failure during a heat wave when elderly family members or young children are in the home. Vanguard Service NJ provides 24/7 emergency heating and cooling service across four NJ counties. Call 908-577-5579 any time, day or night, and a real person answers.
When to Call for Emergency HVAC
- Complete loss of heating or cooling
- Burning smell from your HVAC system
- Carbon monoxide alarm going off? Call 911 first. Move everyone, pets included, into fresh air, and call us once everyone is safe.
- Loud banging, grinding, or screeching noises
- Water leaking from your HVAC equipment
How we handle a heating or cooling emergency
An HVAC emergency is a failure that puts people, pipes or the house at risk: no heat in freezing weather, no cooling in a heat wave, a smell of gas or hot wiring, or a carbon monoxide alarm. The right first move depends on which of these you are facing, so this page sets out the safe steps for each one, then explains how our technicians make the equipment safe before they start looking for the fault. Our line, 908-577-5579, is answered 24/7, holidays included, and no repair starts until you approve its written price.
What should I do while the house has no heat in freezing weather?
Hold on to the heat you have and protect the plumbing. Shut the doors to unused rooms and gather in the warmest one. Open the cabinets under sinks that sit against outside walls, so warm room air reaches the pipes, and let a faucet on an outside wall run at a slow drip. Never heat the house with a gas oven or range, and never run a grill or generator indoors or in an attached garage, since all of them give off carbon monoxide. Plug a space heater straight into a wall outlet, not an extension cord, and keep bedding, curtains and furniture well away from it.
What should I do about a burning or electrical smell from the system?
Turn the system off at the thermostat first, then cut its power at the service switch near the furnace or air handler, or at the breaker panel, so nothing can restart on its own. A smell of hot wiring or melting plastic that does not fade can come from an overheating motor or a scorched electrical connection, and running the system again can make the damage worse. If you see smoke or flames, or the smell keeps getting stronger with the power off, leave the house and call 911. Otherwise keep the system off until the source has been found.
What if I smell gas or a carbon monoxide alarm goes off?
Get out first and investigate later. Natural gas has an odor added, often compared to sulfur or rotten eggs, so that leaks can be noticed. If you smell it, do not flip light switches, use a phone or the thermostat, or light anything on the way out, since a spark can ignite gas. Call the gas company's emergency number or 911 once you are well away from the house, and stay out until responders say it is safe. Carbon monoxide has no smell at all, so an alarm counts even if nobody feels ill: move everyone, pets included, into fresh air and call 911.
What should I do if the air conditioning fails in a heat wave?
Switch the system off at the thermostat if the outdoor unit hums while its fan sits still, if ice is building on the copper lines, or if its breaker has tripped more than once, because running it in that state can damage the compressor. Then slow the heat gain: draw blinds on sunny windows, keep the oven and dryer off, and spend the hottest hours on the lowest floor or somewhere air-conditioned. Fans make a room feel cooler but will not prevent heat illness in extreme heat. If anyone becomes confused, faints or feels very hot to the touch, call 911.
What happens when you call
- When you call, we ask what is happening right now, whether anyone smells gas or burning or hears an alarm, and whether the equipment is already switched off, then go over what to do until the technician gets there.
- On arrival, the technician checks for danger before looking for the fault: a carbon monoxide reading at the equipment and in the living space, a leak check along the gas piping to the appliance, and a look for scorched wiring or water near electrical parts.
- Anything unsafe is isolated right away, by closing the appliance gas valve, switching off a circuit or disconnecting a failed part, so the house is safe while the diagnosis goes on.
- The system is then tested stage by stage until the failed part is found, and you hear in plain terms what failed and why.
- Nothing is repaired until you have approved a written price, and if the equipment cannot be made safe to run, you are told why it has to stay off and what your options are.
- After the repair, the system runs until it heats or cools normally, and the gas, carbon monoxide and wiring checks are repeated before the technician leaves.
What an emergency repair costs
The price of an emergency call comes down to the fault behind it. Replacing a capacitor or an igniter is a smaller job, while a failed blower motor, control board or compressor means a costlier part and more labor. A furnace that cannot be made safe, such as one with a cracked heat exchanger, can turn a repair into a replacement decision. Before any work, you approve a written price with no hidden fees, and larger jobs can be financed.
Emergency heating and cooling questions
When is losing heat or cooling an actual emergency?
Treat it as urgent when the house is losing heat in freezing weather, when indoor temperatures are climbing during a heat wave, or when anyone at home is struggling with the temperature. A smell of gas or burning, a carbon monoxide alarm, or water reaching electrical parts is urgent in any season. A furnace that quit on a mild day while the house stays comfortable is usually fine to book as a scheduled visit. If you are not sure which applies, call and describe what is going on.
What if I have to leave a house with no heat in freezing weather?
Close the main water shutoff before you go, so a pipe that splits while nobody is home cannot keep flooding the house. Opening faucets on the top and bottom floors afterward drains some of the water left in the lines. If a boiler heats the house, its heating pipes hold water too and can also freeze, so mention that when you call.
Is water leaking from the furnace or air handler an emergency?
It depends on where the water is going. A small puddle beside a basement furnace can usually wait, as long as it stays clear of wiring. Water overflowing from an attic air handler can soak through a ceiling fast, so switch the system off at the thermostat, catch what you can in a bucket and move belongings out of the way. If water is reaching wiring or an outlet and the breaker panel is in a dry spot, switch off that circuit, and do not touch wet electrical equipment.
What happens if the technician finds the equipment unsafe to run?
The technician shuts it off and explains what was found and why it cannot run. A gas leak, a blocked flue or a cracked heat exchanger that could let combustion gases into the airflow are typical reasons a furnace has to stay off. You then get the options in writing, whether that is a repair or a replacement, and the decision is yours. Until heat is back, the same precautions for keeping people warm and pipes from freezing still apply.
Don't Take Our Word For It
"I love Vanguard. I have been using them ever since I moved to NJ. They are my trusted plumbers. My most recent experience was for a clogged sink in my son's bathroom that my husband made worse. My experience was extremely pleasant starting from scheduling the visit and when the gentlemen came they were professional and friendly. What I most especially liked is that they cleaned up after themselves. You could hardly tell they were working in there."
Monique Simmons
"Bevon was beyond amazing. We had an HVAC issue with our 2 year old system. Bevon found the issue in 5 minutes, found parts, and had the system running that day. Thanks to Karen who took my initial call. Great service, will call again in the future."
Jaiden Alexander
"Mike and Matt A+! Arrived promptly, got right to work and fixed my issue efficiently. When they left it was like they were never there, no trace left behind. Will definitely be using these guys again."
Christopher Manahan
"Mike and Matt were an excellent team today. Came on time, finished the job, cleaned up, and explained everything thoroughly. They are who I'd call next time."
Laura Cohen
"Whenever I really need service, Bevon and Jaimie have always stepped up. Today was no exception. Very courteous and professional. Looking forward to using Vanguard Service NJ for future needs."
Kofi
"They came on time and were very helpful and professional. They answered any questions that we had."
Reginald Tinson