Furnace Repair in Central NJ
Serving homeowners across New Jersey & Staten Island, NY.
Guaranteed Service is your trusted choice for reliable furnace repair. We serve homeowners in Central New Jersey and Staten Island, NY. Our heating experts are available 24/7/365 for emergency service, and we back every job with a 100% Satisfaction Guarantee.
If your system has stopped blowing warm air, the pilot light won't turn on, or your furnace is making strange noises, we can help. We will quickly and reliably get your home warm again.
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FURNACE SERVICE & REPAIR AT GUARANTEED SERVICE
Furnace Repair
When your home heating system breaks down, you need a team you can count on. Guaranteed Service provides a full range of heating services, including:
- Furnace Repair & Replacement - Gas and electric furnaces of all makes and models.
- Heat Pump Repairs - Fixing refrigerant leaks, frozen coils, and electrical issues.
- Smart Thermostat Installation - Improve efficiency and indoor comfort.
- Regular Maintenance - Prevent costly breakdowns and extend system life.
- Indoor Air Quality Solutions - Cleaner air, healthier home, and better energy efficiency.
We’ve proudly served Central, NJ homeowners for decades with fast, local service.
Common Furnace Problems in Central NJ
Central NJ winters can push your furnace to its limits. These are the most common issues we see in the area:
- Clogged Air Filters: Dust and dirt buildup restricts airflow, making your system run harder and driving up energy bills.
- Thermostat Malfunctions: A faulty thermostat misreads temperatures, causing uneven heating.
- Ignition Problems: If the pilot light won’t ignite, it may be a switch or electrical issue.
- Worn-Out Blower Motors: A failing motor reduces airflow and leaves your rooms chilly.
- Wear and Tear on Heat Pumps: Refrigerant leaks, frozen coils, or electrical problems impact performance.
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Heating Service & Repair
Emergency and Same Day Service Options Available
Heating problems don’t wait for business hours - and neither do we. Guaranteed Service offers same-day furnace repair and 24/7 emergency service throughout Central NJ and Staten Island. No matter the time of day, we’ll be there with fast, dependable repairs to restore your comfort.
How Much Does It Cost to Repair a Furnace in NJ?
The cost of furnace repair in New Jersey depends on the type of system and the problem:
- Minor Repairs: Fixing an igniter or replacing a thermostat may only cost a few hundred dollars.
- Major Repairs: Heat exchangers, blower motors, or electrical components can cost more.
- Older Systems: Units over 15 years old often require more frequent and costly repairs.
Seasonal demand can also affect pricing, especially during peak winter months. The best way to save on furnace repairs is regular maintenance. This keeps your system running well and lowers the chance of breakdowns.
How Do I Know If I Need a Heater Repair?
Sometimes, the signs are obvious - but other times, you may not realize your system is struggling until it’s too late. Watch for these warning signs:
- Unusual Noises: Rattling, vibrating, or banging often means a part has come loose.
- Weak Airflow: Warm air that barely blows through your vents signals a blower issue.
- No Heat at All: If your furnace is running but not producing heat, you need professional repair immediately.
- If you notice any of these issues, call Guaranteed Service right away to prevent bigger, more expensive problems.
WHO WE ARE
At Guaranteed Service, We:

Promise not to mislead or offer any customer products or services that they do not need or want.

Promise to always be ethical and do the right thing, every time.

Promise to take personal responsibility for the satisfaction of every customer and will follow all company policies and procedures at all times.
Guaranteed Service
Our Location
2675 NJ-70 Manasquan, NJ 08736
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Hours:
- Mon - Sun
- Open 24 Hours
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SEE WHAT OUR CUSTOMERS ARE SAYING
TESTIMONIALS
★★★★★
Very thorough, answered all my questions.
Justin Ebner was the technician that came to my house when I had water leaking from the AC unit. He was courteous and took the time to walk me through the issue. He was very thorough, answered all my questions. I felt very comfortable that the issue was appropriately identified and the appropriate corrective action was taken.
-Suliman C.
★★★★★
Got an estimate in 1 day and install 2 days later. Everything was amazingly smooth and effortless and our new system is fantastic. Love our new thermostats too. We were very pleased, especially right now when people are having so many problems getting supplies and equipment. Already recommended to neighbors.
-Nancy Troske
★★★★★
Professional & Friendly
Truly great service! He was professional & friendly. He is clearly experienced because he installed a water-pressure sub pump backup system for us which is a complicated job. He came back again a couple of days later to replace an old leaking toilet. He was considerate with cleaning up afterwards too. I highly recommend Guaranteed Services & especially Rob.
-Steve Minarik
★★★★★
I Could Not Be Happier with the Service
I am so impressed! I had a water leak and the technician came out to fix my problem shortly afterwards. I could not of been happier with his service. Barry was polite, honest and extremely hard working. I truly appreciate all he did to help me on a bad situation.I highly recommend Guaranteed Services for all your needs. Thanks again!!
-Susan C.
★★★★★
Now we have a great system with a lifetime warranty.
These guys are the BEST. They replaced my old heating and air conditioning with energy star system. I love it. Quick and efficient. AL is a lovely young representative and he explained in detail what we getting. Brian, Tommy and Greg the installers, they worked very clean and they are wonderful. Now we have a great system with a lifetime warranty. Thank you GUARANTEED SERVICE.
-Kay G.
★★★★★
Very thorough, answered all my questions.
Justin Ebner was the technician that came to my house when I had water leaking from the AC unit. He was courteous and took the time to walk me through the issue. He was very thorough, answered all my questions. I felt very comfortable that the issue was appropriately identified and the appropriate corrective action was taken.
-Suliman C.
★★★★★
Got an estimate in 1 day and install 2 days later. Everything was amazingly smooth and effortless and our new system is fantastic. Love our new thermostats too. We were very pleased, especially right now when people are having so many problems getting supplies and equipment. Already recommended to neighbors.
-Nancy Troske
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AREAS WE SERVE
Monmouth County
Ocean County
Somerset County
Mercer County
Middlesex County
Hunterdon County