Installation & Replacement of Air Conditioner Systems

We all just want to be comfortable, right? Often times, it makes more sense to replace an older, less efficient system, especially when considering factors, like rising electric and gas costs and breakdowns at the worse possible time! At Professor Gatsby’s Heating, Cooling & Plumbing, we provide a wide range of ac replacement and ac installers services to meet the needs of our customers in WilliamstownTurnersvilleSewellBlackwoodMullica HillCherry Hill, Sicklerville, and other surrounding towns in South Jersey including Mercer County. 

Our Installations Protect You for 10 Years Peace of Mind

Thinking about replacing your home's heating and cooling system?

When it comes to replacing your home’s heating and cooling system, you want to get it right You don’t make a purchase like this very often so when you get an estimate, you want to learn about the company’s reviews, warranties and guarantees.

The most important part of a heating and air conditioning installation is the quality of installation and having a company that stands behind their work, with 100% satisfaction guaranteed.

Our company’s mission is keeping YOU comfortable and is why we have the right team and processes to ensure your system passes inspection and gives you the peace of mind you deserve.

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$1500 Off System Replacement
0% Financing, Rebates, No Money Down

Expires 6/30/2024
(cannot be combined with other offers)

When it comes to replacing your home’s heating and cooling system, you want to get it right You don’t make a purchase like this very often so when you get an estimate, you want to learn about the company’s reviews, warranties and guarantees.

The most important part of a heating and air conditioning installation is the quality of installation and having a company that stands behind their work, with 100% satisfaction guaranteed.

Our company’s mission is keeping YOU comfortable and is why we have the right team and processes to ensure your system passes inspection and gives you the peace of mind you deserve.

Types of Installations
Want to learn about programs & rebates to lower your home's energy bills by as much as 25-30%?
Upgrading your Home’s Heating, Cooling, Attic Insulation & Air Sealing
What programs or rebates are available in my area?

We are proud to work with the local utilities like PSE&G, South Jersey Gas & Atlantic City Electric. They have programs that offer applicable rebates & 0% financing. In addition to these, we work with several other banks. Each of these has their own credit approval criteria, which our technicians will happily educate you on.

PSEG Logo

0% Financing with On Bill Repayment up to $15,000 Rebates on Equipment

South Jersey Gas Logo

0% Financing with On Bill Repayment up to $6,000 Rebates on Equipment

Atlantic City Electric Logo

Rebates on Equipment

**Ask us if your home qualifies for a rebate of up to $ 5,000 when replacing your heating, cooling, water heater & insulation together**
Home Performance with Energystar
**Ask us about an Energy Assessment /Audit**

Why choose us to be your Air Conditioning 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, Cooling & Plumbing 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.

Joe Fecher
Joe Fecher
2024-03-21
From my first phone to request service to Ryan arriving on time he couldn’t have been nicer. Gatsby is lucky to have such a highly talented technician on their team!!! Will definitely be using them in the future! Thanks again to Ryan!!!!
Raymond Scelfo
Raymond Scelfo
2024-03-20
My service tech Sal was amazing. Very well educated about plumbing. Extremely helpful and very kind. Great work, i am VERY pleased, he saved me from having issues months down the road!
Art Vandelay
Art Vandelay
2024-03-15
Very professional, courteous, and clean. The work and surrounding areas look great. The work was scheduled for two days but the crew managed to complete in one day. Would definitely recommend and rely on their service snd expertise in the future.
Dianne Berryman
Dianne Berryman
2024-03-14
He was very nice and explained everything he took care of. I think he did a great job.
Deb Pantisano
Deb Pantisano
2024-03-06
We have been using Professor Gatsby for many years for our heating and air ! We can't say enough about the quality of workmanship they provide! They are So respectful upon entering your home! They communicate with you ! We recently needed a bathroom upgrade! As they do plumbing we had them install our Jacuzzi tub, toilet and faucets. We are so happy with the Quality of work they provided with very reasonable prices ! We highly recommend calling them first! You will not be disappointed! We give them a 5 Star Review!!
Kathy Keller
Kathy Keller
2024-02-28
Chintan Chhaya
Chintan Chhaya
2024-02-19
I had 2 hvac systems installed on 12/8/23. Within 24 hours, one system stopped working due to "poor airflow." it was resolved, then on 2/1/24 (approx. 1.5 months later, the same system is now down - awaiting a technician). How is this possible? Total of 5 people (including installation, and 2 troubleshooting calls later), it is not working again. It hasn't even been 2 full months. Update: 2/2/24. Technician + Manager came out to troubleshoot, the issue was given high priority, and issue has been resolved. Although I was frustrated with the issue, Prof. Gatsby did resolve it by giving the issue high priority and appropriate level of attention. Was already signed up for long term maintenance package with them, will continue to do business with them. Update: 2/19. The Unit is non-functioning again (mere 17 days later - since last review). Quite frustrated with Professor Gatsby, and experiencing proper buyers remorse. On average, every 3 weeks, I have had to have a service call with professor Gatsby on a unit installed in Dec' 23. Very disappointed and frustrated. Would not recommend again.
Danielle Hellick
Danielle Hellick
2024-01-11
Prompt and attentive. Makes effort to accommodate customer. Sal the technician was friendly, courteous and helpful. Went above and beyond and was sure to explain everything to me.
Susan Hartington
Susan Hartington
2024-01-10
Joel was great. He fixed the problem and answered all my questions!!!
Joe Laraio
Joe Laraio
2024-01-08

Frequently Asked Questions

If you think about it, you really won’t know if you chose the right contractor for the job until its been installed. That’s why you want to make sure they have a money back guarantee and guarantee your satisfaction 100%, like we do.

When we come out to perform your estimate, we will identify what you have now, what your home should have and what’s important to you to help you make an informed decision on the level of efficiency that you’re looking for. If you won’t be in the home a long time, it may not be necessary for you to invest in the most efficient system. We can inform you about current rebates and 0% financing and at what efficiency level you can get them during your free estimate.

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

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 noticing that your utility bills are high?


Did you know that up to 70% of your home’s energy usage is correlated to your furnace, ac & water heater?

Many people don’t know how inefficient their system is or how much they can save with higher efficiency equipment. Studies have show, there is a tipping point, often around 15 years that says the level of efficiency drops from the advertised efficiency so your older system could be costing you more than it would be to just replace and then not have worries of large repairs.

Is your current system out of manufacturer warranty?


Operating an older heating system that’s out of warranty leaves you exposed when there is a major failure. Often times parts aren’t available.

Is your system obsolete?

The cost of repairs can be put towards a new system for more years of comfort

We find that when getting multiple estimates, no estimate is created equally. That’s why we spend time explaining to you exactly what your home should have, present you with options and leave with you a detailed proposal explaining everything you will be getting with us. We guarantee you pass your township inspection and perform heat load calculations to ensure that your home is being heated and cooled with the proper sized equipment.

The first step is to get you set up with a free estimate. Our technicians will come to your home, measure your home and equipment, determine what’s best, present your options and spend as much time as needed with you to ensure you’re 100% comfortable with us. We’ve been told we’re the most knowledgeable and thorough, when compared to our competitors. If you choose us, we will provide you with an installation date, start your permit and start working on the office portion of your project. We even call you the night before as a courtesy reminder! We send enough experienced technicians to your home to complete your installation in only 1 day, in 95% of our installations.

In most cases, our installations take 1 day. We send enough experienced technicians so we are able to complete that day. Our priority is to make sure you aren’t without heating or cooling.

We are proud to work with the local utilities like PSE&G, South Jersey Gas & Atlantic City Electric. They have programs that offer applicable rebates & 0% financing. In addition to these, we work with several other banks. Each of these has their own credit approval criteria, which our technicians will happily educate you on.

Not necessarily. This really depends on the age and condition of your equipment. Older systems use older refrigerants and can have different size equipment. Due to compatibility with these components, you may need to change both. We generally recommend replacing it together to save money if the equipment is older, but our technicians can help you decide what makes the most sense for your home.

We find that often times, a home’s existing heating and cooling system is the right size. How we make sure we get it right is by performing ACCA approved heat load calculations. If you have other estimates, ask the contractor what the load calculation says the home calls for. Our guarantees protect you from needing to worry about this but it is part of our process to ensure quality installations.

Operating an older heating system that’s out of warranty leaves you exposed when there is a major failure. Often times parts aren’t available. Is your system obsolete? The cost of repairs can be put towards a new system for more years of comfort

If your air conditioning system gives you headaches due to inefficient cooling or frequent breakdowns, you must call a specialist now. A malfunctioning air conditioning should be checked by a qualified technician to determine the exact cause of the problem. Frequent breakdowns are clear signs of a deteriorating air conditioner. Your Air Conditioning system is also up for replacement if you found moisture or leakage around the unit, you hear unusual sounds, or you have a 10 to 15 year-old A/C unit. Performing repairs or the required maintenance is only a temporary solution so the best option is to install a new one. But the installation job should not be given to any service provider in your area. You have to hire a well-experienced local HVAC company like us at Professor Gatsby’s Heating & Cooling. Our company offers comprehensive A/C replacement service to both residential and commercial clients in Southern New Jersey.

Please call us if you’re from Turnersville, Sewell, Blackwood, Williamstown, Mullica Hill, Marlton, Cherry Hill and Glassboro, NJ. We’ve been serving these areas for years so most residential and commercial property owners from these areas know how we work on client’s heating and cooling systems. Dial our hotline today to get more details on our top-rated A/C replacement service.

Air Conditioner Replacement Done Right

Air Conditioner replacement should not be considered as a DIY job. You must rely on the services of professional technicians or hire a fully licensed HVAC company like us at Professor Gatsby’s Heating & Cooling. We have seasoned air conditioning technicians with extensive experience in A/C installation and maintenance. They can work on any make or model, whether defective or still working. Aside from their ability to work on residential A/C systems, they can also replace or upgrade centralized air conditioning systems in commercial properties.

Our people are equipped with the right tools and equipment so the job is performed promptly and accurately. These vital resources help us prevent work-related injuries and avoid damages to our client’s properties. By adopting a systematic replacement process, we can guarantee a hassle-free work regardless of the complexity of the existing A/C system. It also minimizes disruptions in our client’s business premises. Our main objective is to perform the A/C replacement job right the first time. No back jobs.

Installation of Premium Air Conditioner Brands

At Professor Gatsby’s Heating & Cooling, we recommend and install highly efficient A/C units that are proven tough and long-lasting. We will replace your unit with the same make or model or install a much better Air Conditioning system to give you peace of mind. Since we only install premium A/C brands, you won’t have to worry about frequent breakdowns that can result to expensive repair works or unit replacement. You will also enjoy a more comfortable indoors because of the efficient units that we install. Most of our recommended brands have innovative features like programmable timers, compact designs, modern thermostat controls, low-noise operation, and high-energy efficiency rating. Choosing premium brands will cost you more but you will reap huge benefits in the long run. Aside from reliable and efficient operation, your new A/C unit will give you savings due to its low energy consumption.

Call Professor Gatsby’s Heating & Cooling at (856) 885-2231 today if you want reliable and efficient A/C replacement units for your home or commercial property.