Heating Services in South Jersey & Mercer County
At Professor Gatsby’s Heating, Cooling & Plumbing, we provide a wide range of heating services to meet the needs of our customers in Cherry Hill, Williamstown, Sicklerville, Mullica Hill, Princeton, Lawrenceville and other surrounding towns in South Jersey & Mercer County. Our team of certified HVAC & Plumbing professionals have extensive experience installing, repairing, and maintaining all kinds of heating systems. We also offer Same Day Emergency Heating Repair Services!
What Type of System Do You Have?


- $49 Gas Furnace or AC Tune-up
- Up to $1,500 Off New Heater or A/C
- 0% Financing Available
Click Here for Specials
Why choose us to be your Heating Repair Company
Speedy Service
When your heating or air conditioning system malfunctions, you want things fixed as quickly as possible, right? As a result, the Professor’s fleet visits homes and families throughout Southern New Jersey. The tools and components in our vehicles ensure our clients a quick fix of the HVAC at the initial service visit.
We Earn Your Trust
Yes, we are quick, but our pros are keen on details. They’ll go through everything with you to ensure you comprehend the issue. Customers tell us that they have never been treated more professionally and sensibly by a company. Only Professor Gatsby’s Heating and Cooling will give you that feeling of assurance and care. You can trust our heating and cooling contractors!
We Are The Experts in Comfort Repair
Our HVAC services are straightforward. If it’s broken, we can fix it. If it’s working, we can maintain it. If it’s obsolete, we can replace it. And as for our work, we guarantee it.
5 STARS – 1 Reason
Although there may be many options, how we handle our customers sets us apart from the competition. We place a high value on the satisfaction of our clients, as seen by our 5-STAR RATINGS. For every HVAC service we provide, we only employ the best and most experienced professionals, delighting our clients.




$49 Off Your Service Repair
Expires 4/30/2025
(cannot be combined with other offers)




$1500 Off System Replacement
0% Financing, Rebates, No Money Down
Expires 4/30/2025
(cannot be combined with other offers)




$49 Gas Furnace or A/C Tune-Up
Expires 4/30/2025
(cannot be combined with other offers)






Frequently Asked Questions
Yes! In almost all cases, we can be out to repair your system that same day! We are in the service business, so we do our absolute best to respond as quickly as possible to keep your family as comfortable, as quickly as possible.
There are many things to consider when deciding to replace or repair.
Have you had a thorough diagnosis from a reputable company?
It’s important to be educated on what’s wrong with your system to make the best decision for your home. If you just need a second opinion to make sure this is the best solution for you, we can help. If you’ve decided replacement is best, we can offer you a free estimate.
Are you having frequent repairs on your system?
As systems age, like your car, will cost you more and more up until the point of complete failure, often times at the most inconvenient time, like the dead of winter replacing your system before these continued repairs will save you money and also keep your family comfortable.
Are you overpaying for Utilities?
Your older heating and air conditioning system is no longer operating at it’s manufactured efficiency rating. This combined with the newer, higher efficiency systems available today, the rising cost of electric and gas makes replacing now an easy decision. Today’s systems are also safer and provide much more comfort, due to technology that wasn’t available previously. Did you know there are electric and gas rebates and financing available to replace your system and save? Click Here to learn about programs in your area.
Generally speaking, if your system isn’t working currently, you would need a repair or a service call. If everything is operating, you would most likely just need some routine maintenance / tune-up. Here’s what a tune-up includes https://profgatsby.com/maintenance/
EXCELLENT Based on 569 reviews Cindy Miller2024-09-11Trustindex verifies that the original source of the review is Google. They saved the day!! I had water everywhere and they were able to dispatch a technician to my house immediately! The technician was courteous, professional and really knew his stuff! Thank Professor Gatsby!! Grace Zuccarello2024-09-06Trustindex verifies that the original source of the review is Google. 2 gentlemen showed up to take a look at our water pressure and well pump. Unfortunately they were not able to preform any tests because the previous plumber had left shoddy work, and they didn’t want to risk it. They suggested a few names for us to call. Their fee ($225, I think) was not cheap to pay, but at least they were honest and didn’t cause us bigger issues. Andrew Forehand2024-09-03Trustindex verifies that the original source of the review is Google. Doug Jones2024-08-29Trustindex verifies that the original source of the review is Google. Kathryn Garrity2024-08-29Trustindex verifies that the original source of the review is Google. Greg Arena (southjerseygma)2024-08-27Trustindex verifies that the original source of the review is Google. Replaced entire HAC system with a top-notch new system last month. Doing well so far. Thank you! Matt Chimento2024-08-23Trustindex verifies that the original source of the review is Google. Steven Mays2024-08-23Trustindex verifies that the original source of the review is Google. My existing system had a failure. I called Gatsby, and they sent a technician to diagnose the issue. Unfortunately the parts were unavailable and backordered 3 months. I verified this myself by hunting down the parts and not being able to find them anywhere. After discussions with the service manager Fury, I asked to get a quote on a new system. I received quotes from other companies as well, to ensure I was getting a fair price. The salesman Steve gave me a quote that was a few thousand less then the competition, and after researching the Amana line of products I decided to go with Gatsby for a new system. Steve then went above and beyond by going back to the main office to get AC units so that my family would be comfortable until the new system could be installed. This was 5:30PM on a Friday - superb customer service. Kyle and his crew started at 7:30 and finished at 7:30. It was a long day. At the end, Kyle walked me through everything explained everything they did thoroughly. The technicians were clean and treated my home with care, and went above and beyond replacing a valve that supplied my humidifier. It is now day 2 with the new system and it is humming along. It's super quiet. After the install I texted Steve the salesman a few questions and received answers back promptly. I did a lot of research on the system and the Amana S Series with a heat pump is the real deal. It replaced my carrier infinity system and it is much quieter, performs at least as well, and was several thousand dollars less. Along with top notch customer service, clean install, 10 year parts and labor warranty - I really feel Gatsby went above and beyond in every way possible. Edward Knowles2024-08-21Trustindex verifies that the original source of the review is Google. Always send great and personable professionals to our home. Thanks again for another good experience. Thanks Joe! Ray Dudek2024-08-19Trustindex verifies that the original source of the review is Google. Sean M was extremely knowledgeable in all facets of the system. Explained precisely what he would do and what recommendations he suggested to ensure peak performance. Very friendly and clearly an experienced technician. I would highly recommend him for any heating or AC needs. I hope to see him again!


Gas Furnace/Heater
Natural Gas Forced Air systems are the most commonly used systems to heat a home in our area.


Gas Boiler
Boiler’s heat home’s by sending hot water from the boiler to a radiator or baseboard style heating system. Combi-Boiler’s add the ability to provide your hot water and heat with the same piece of equipment.


Heat Pump
Heat pumps are common in homes that don’t have access to natural gas or are used as an alternative way to heat and also cool your home. Today’s Inverter technology can give the ability to operate with both gas and electric to have the cost benefit of both.


Ductless Heating
A great solution for home’s that want to add heating or air conditioning in room’s that don’t have duct work or vents.
Heating
All kinds of heating systems must be carefully selected and installed only by well-experienced professionals. Experts can recommend reliable brands and install the units according to industry standards. Letting professionals do the technical work will ensure the proper functioning of the entire heating system. Property owners must also follow a sound maintenance plan to maximize the efficiency of the system. A carefully planned maintenance program will prolong the life of the equipment and prevent unnecessary breakdowns. But the heating repair and maintenance works should only be given to certified HVAC professionals like us at Professor Gatsby’s Heating, Cooling & Plumbing
Our company is one of the most trusted HVAC companies in Southern New Jersey. We cater to the heating needs of all types of clients across the region. We can install, repair and maintain all kinds of heating systems in homes, commercial properties and even industrial facilities. We offer our specialized services at reasonable rates, so clients like you will enjoy a hassle-free installation or maintenance service without worrying about the cost. This is one of the reasons why most property owners from Williamstown, Turnersville, Sewell, Blackwood, and Mullica Hill rely on us. We also have a lot of satisfied clients from Marlton, Cherry Hill and Glassboro, NJ. Please call us now at (856) 885-2231 to experience our kind of service.


Heating Installation
Heating installation is among the specialties of Professor Gatsby’s Heating, Cooling & Plumbing. We’ve been offering this service for years so we have already mastered the different installation methods and techniques. We always perform careful assessment of your heating needs before we recommend a specific type of heating equipment. Our aim is to provide you a reliable and highly efficient heating system at a cost that will suit your budget. We don’t want you to spend your valuable time, effort, and money for frequent repair and maintenance, so we only recommend proven and trusted brands. We are accredited installers of leading manufacturers so you are assured that the installation is done according to manufacturer’s specifications.
We are the company to hire if you are looking for people who can work fast but with great precision. We have well-trained HVAC technicians who can install all kinds of heating equipment – from furnaces and heat pumps to garage heaters. We can handle large installation projects in residential and commercial properties with no delays because of our state-of-the-art tools and equipment. Getting your desired heating equipment and materials will not be an issue for us since we have partnerships with leading suppliers and HVAC manufacturers.
Heating Repairs and Maintenance
You can ensure the proper functioning of your heaters by getting a reliable partner like us. For years, we’ve been the top choice of New Jersey property owners for our reliable heating repair and maintenance services. They prefer us over other service providers in the area for our effective maintenance services. We don’t just perform routine maintenance on your heating unit but also do a complete evaluation of the entire system. This approach helps us identify and correct possible issues on your heating equipment.
We are also the company to call for emergency heating repairs. Our HVAC technicians are always ready to be dispatched anywhere in South Jersey. They are fully-equipped with modern tools and equipment, so they can fix all kinds of heating issues onsite. They are well-trained in the repair of gas and electric powered heating equipment, as well as old and modern units. We also bring replacement supplies and materials to ensure the speedy completion of the repair job.