Furnace Installation in Central NJ
When it comes to furnace installation in Central NJ, Guaranteed Service delivers peace of mind. Our skilled HVAC technicians make sure your new furnace is the right size, installed safely, and made to last.
Whether you are getting a new high-efficiency gas furnace or replacing an old one, we make it easy. Our process is smooth and stress-free. We guarantee your home will stay comfortable for years.
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FURNACE INSTALLATION & REPLACEMENT AT GUARANTEED SERVICE
HEATING SERVICES AT GUARANTEED SERVICE
Professional Furnace Installation Services
Homeowners across Central New Jersey and Staten Island count on Guaranteed Service for reliable, professional furnace installation. Our team is certified to handle:
- Gas Furnace Installation - The most popular option in NJ for affordable, efficient heating.
- Oil Furnaces - A dependable choice for homes without natural gas lines.
- Electric Furnaces - Ideal for smaller spaces or homes looking for a simpler solution.
- Ductwork Adjustments - Ensuring proper airflow and energy efficiency.
- Smart Thermostat Integration - Giving you more control over comfort and energy bills.
We don’t just install a unit. We check your home’s size, insulation, and heating needs. Then, we recommend the best system for long-term performance.
See our recent jobs in your area!
Heating Installation & Replacement
Furnace Repair vs Replacement
Not sure if you should repair or replace your furnace? Here’s how to tell:
- Frequent Breakdowns - If your furnace needs constant repair, replacement may be more cost-effective.
- High Energy Bills - Older units lose efficiency, costing you more every winter.
- Age of the Furnace - Systems over 15 years old are usually nearing the end of their lifespan.
- Uneven Heating - If some rooms feel cold while others are too warm, it may be time for an upgrade.
Our technicians will provide an honest assessment so you can make the best decision for your home and budget.
If any of the above signs apply to your home's heating system, it might be time to consider replacing your heater. Modern, energy-efficient options are designed to last for about 18 years, which can save you money on your utility bills and reduce the likelihood of frequent future breakdowns and expensive repairs.
Reasons to Install a New System in Central NJ
Central NJ winters can be brutal, and a reliable heating system is essential. A new furnace installation provides:
- Improved Comfort - Even, reliable heated air in every room.
- Energy Efficiency - Lower monthly bills with modern high-efficiency furnaces.
- Better Indoor Air Quality - Cleaner airflow when paired with proper filters and maintenance.
- Long-Term Savings - Avoid costly repairs and enjoy a worry-free heating system for years.
- Increased Home Value - A new furnace adds value and reliability to your property.
What to Expect on the Day of your Heating System Installation?
Guaranteed Service's Installation Team will work until your job is totally complete, and you are completely satisfied with your new Heating System.
On the day of your installation, you can expect the following:
- We will arrive on time and schedule your Heating System Installation at a time that is convenient for you and your family.
- We will work to ensure that your Heating installation is completed correctly, on time, and to your satisfaction.
- Our Team will utilize drop cloths, and wear protective shoe covers to protect your home.
- Our Install Teams will treat your home as they would their own, you will never have to question who you have in your home with Guaranteed.
- When your Heating Installation is complete, our Install Team will make sure that you understand your new system and how to use it. They will review your thermostat and manuals and make sure to answer all of your questions.
Easy & Affordable- We'll Keep You Warm & Cozy without Breaking the Bank
At Guaranteed Service, we're committed to working within your budget. We offer many financing options for our customers so that you can get the high-quality Heating Installation services you need now and pay for them later. Total comfort should be available to families on any budget, and we are committed to make sure that your home is comfortable. We keep our pricing for new Heating Systems affordable while still promising the highest quality service and installation as well as providing industry leading warranties.
We Offer:
- Interest free options
- Low monthly payment options
- Zero money down options
- Fast & easy application process
At Guaranteed Service, we offer financing options designed to work with you. Contact us to learn about applying for financing for your next Heating Installation project. In addition to financing, we also accept cash, checks and all major credit cards.
Furnaces We Install
At Guaranteed Service, we install and service a full range of systems, including:
- Natural Gas Furnaces - High-efficiency models designed for cold New Jersey winters.
- Oil Furnaces - Built for durability and powerful heating.
- Electric Furnaces - Compact, clean, and easy to install.
No matter the system, our HVAC technicians are trained to handle every detail. They can run gas lines and set up air ducts correctly.
Furnace Replacement Options
If your system is old or cannot be repaired, Guaranteed Service can help. They offer flexible options for replacing your furnace. These options fit both your home and your budget.
We work with trusted brands known for performance, efficiency, and long-term reliability. Our experts will guide you through:
Choosing the right furnace size for your home.
Reviewing installation costs and available rebates.
Exploring energy-efficient upgrades for long-term savings.
Our Lifetime Warranty
Guaranteed Service offers custom designed Heating systems and stand behind the system as well as service with a Pledge that you can rely on, and performance that you can trust. When a new Heating System is installed, as long as it is maintained and operated properly, we will guarantee that your new system will perform as stated. We are so confident in our services and products that we offer a LIFETIME* warranty on replacement parts, as well as additional comprehensive guarantees to ensure your comfort by protecting your Heating System from added expenses. We will always provide you with the best possible value and will ensure your complete and total satisfaction.
Contact Us Today for an Installation or Replacement
Whether you're in the market for a new heating system or your current one needs to be replaced, our heating specialists take the time to ensure that it is installed properly and is the right size for your home. A unit that is too large or small can result in reduced energy efficiency and inadequate heating. We will also discuss the pros and cons of each of your options and help guide you as you select a unit. At Guaranteed Service, your comfort is our priority and we guarantee we'll get the job done right.
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
Get It Done Right, Today! Call for Same Day Service
AREAS WE SERVE
Monmouth County
Ocean County
Somerset County
Mercer County
Middlesex County
Hunterdon County