A furnace that will not light, blows cold air or shuts down after a minute is one of the most common calls we take from October through March. We repair gas and oil-fired furnaces of every age, from builder-grade units in post-war ranches to modern two-stage condensing furnaces.
Heights Plumbing, Heating & Cooling is family owned and operated, licensed and insured under NJ HVAC Lic. #197400. We show up when we say we will, quote upfront with No Worries Pricing and explain the repair before we do it.
Furnace Blowing Cold Air Or Short Cycling? Here Is Why
Modern furnaces are full of safety switches, and almost all of them will shut the burner down rather than run unsafely. A dirty flame sensor, a cracked hot surface igniter, a blocked flue, a failing pressure switch or a filter so clogged the heat exchanger overheats will each produce the same visible symptom: the furnace tries, then quits.
Short cycling is the other frequent complaint. The furnace fires, runs briefly, shuts off and repeats, which wastes fuel, wears out parts and never really warms the house. It is usually airflow, a bad limit switch, an oversized unit or a thermostat placement problem, and all four are diagnosable.
What Our Furnace Repair & Maintenance Service Includes
On a repair visit we verify the call for heat, then follow the ignition sequence through: inducer and pressure switch, igniter, gas valve, flame sensing, limit switches and blower. We check filter condition and static pressure, inspect the heat exchanger for cracks or corrosion, and measure temperature rise across the unit. If a safety issue turns up, we tell you plainly and shut it down rather than leaving it running.
A furnace tune-up covers cleaning the burner assembly and flame sensor, checking and replacing the filter, inspecting the heat exchanger and flue, testing gas pressure and the ignition sequence, checking blower amp draw and belt or bearing condition, verifying thermostat operation and confirming temperature rise is within the manufacturer range. We finish with a straightforward summary of the unit condition.
Signs You May Need Furnace Repair
- Furnace ignites, then shuts down repeatedly
- Air from the vents feels cool or lukewarm
- Blower runs but the burner never lights
- Rattling, screeching or booming on startup
- Yellow or flickering burner flame instead of blue
- Rooms far from the furnace never get warm
- Filter clogs much faster than it used to
- Furnace is over 15 years old and needs frequent repairs
Noticing any of these? Call (201) 245-7772 or request service online. Same-day appointments across North Jersey.
Our Furnace Repair Process
Take the details
When you call 201-245-7772 we ask what the furnace is doing, how old it is and whether you have heat at all, so the technician arrives ready.
Full diagnostic
We test the ignition sequence, safeties, gas supply and airflow rather than guessing at a part. Combustion and temperature rise get measured, not estimated.
Explain and price
You get the cause, the fix and the upfront price, along with an honest read on how much life the furnace has left. No pressure either way.
Repair and verify
Common parts are stocked on the truck, so most repairs finish the same visit. We then run a full heat cycle and confirm the unit is operating safely.
Leave it clean
We clean up the work area, replace the filter if it is due, and tell you what to watch for before the next heating season.
Furnace Services We Offer
Emergency no-heat repair
Diagnosis and repair for a furnace that will not start or will not stay running, with same-day service available across North Jersey.
Annual furnace tune-up
A pre-season clean and safety inspection. The most cost-effective way to avoid a mid-winter breakdown.
Igniter, flame sensor and gas valve work
The most common furnace failures. These are typically same-visit repairs with parts carried on the truck.
Blower motor and airflow repair
Motor, capacitor and wheel replacement, plus correcting the duct restrictions and filter problems that cause overheating.
Heat exchanger inspection
We inspect for cracks and corrosion and explain your options clearly if we find a problem, because a compromised heat exchanger is a safety matter.
Thermostat and controls
Replacement, wiring corrections and setup for programmable and smart thermostats, including zoned systems.
Why Choose Heights for Furnace Repair
- Family Owned & Operated: A family business means more personalized service than you get from big chain providers.
- 56 Years of Industry Experience: Over 56 years of combined industry experience across plumbing, heating and cooling.
- Licensed & Insured: NJ HVAC Lic. #197400 and NJ Plumbing Lic. #1221100. Fully insured for residential and commercial work.
- Engineers On Staff: Our own mechanical and electrical engineers design systems and handle wiring, so you don’t need a second contractor.
- Same-Day Service: Schedule with us and we’ll provide service within 24 hours, arriving on time as scheduled.
- No Worries Pricing: Straightforward pricing with no surprise fees or up-charges. You know what you’re paying before we start.
Furnace Repair Across Bergen, Essex & North Jersey
We provide furnace repair from our offices in Fair Lawn and Hillsdale to every municipality in Bergen County and Essex County, including:
We also serve Sussex County, Passaic County, Warren County, Morris County, Hudson County, Union County, Hunterdon County, Somerset County, Middlesex County, Mercer County.
Furnace Repair FAQs
Why does my furnace keep shutting off after a few minutes?
Usually a dirty flame sensor, a blocked flue or restricted airflow tripping a safety limit. All three are diagnosable and most are same-visit repairs.
How long should a furnace last?
Most gas furnaces run roughly 15 to 20 years with regular maintenance. Age alone is not a reason to replace, but it changes the math on an expensive repair.
Should I repair or replace my furnace?
We look at the cost of the repair, the age and condition of the heat exchanger, and how the unit has been performing. If replacement makes more sense we will show you why, and financing is available through Synchrony.
How often should I change the filter?
Check it monthly during heating season. Most one-inch filters need changing every one to three months, sooner with pets, and a clogged filter is a common cause of furnace shutdowns.
Do you service oil furnaces?
Yes. We work on oil-fired equipment as well as gas, and we also handle oil-to-gas conversions when a homeowner is ready to switch.