Gas Boiler Replacement and Installation

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, we provide a wide range of heating services to meet the needs of our customers in Williamstown, Cherry Hill, Sicklerville, Mullica Hill and other surrounding towns in South Jersey. Our team of certified HVAC professionals have extensive experience installing, repairing, and maintaining all kinds of heating systems. It’s important to choose a qualified professional who can ensure proper installation and safety. Our company offers top-notch gas boiler replacement services, using only high-quality equipment and ensuring expert installation to guarantee your satisfaction. We also offer Same Day Emergency Heating Repair Services!

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.

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

Expires 08/31/2023
(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
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 $25,000 Rebates on Equipment
South Jersey Gas Logo
0% Financing with On Bill Repayment up to $11,000 Rebates on Equipment
Atlantic City Electric Logo
0% Financing up to $15,000 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 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.

Greg S.
Greg S.
2023-06-17
T. “Crazytrain427” D.
T. “Crazytrain427” D.
2023-06-16
Honest. Professional. Reasonable. Fantastic customer service. Matt and his team go above and beyond to make their customers happy. Even though I was out of warranty on my heater, Matt made sure I was fixed right and "covered everything". I've recommended him to friends and I know they've also been extremely happy. I tell anyone interested in repairs or a new system to call the Professor ☺ Tony 6/16/23 - I've used Professor Gatsby's for a new heater, new AC system and multiple repairs. Matt and his crew are just the best.
Daniel Romano
Daniel Romano
2023-06-16
The most knowledgeable, Polite and professional crew I ever experienced from the sales rep . Brandon to the installers Kyle , Brian , & Tom they made the process enjoyable . Thank You Guys for the WOW experience.
Laurie Quinn
Laurie Quinn
2023-06-14
Professor Gatsby's was professional,on time, and got the job done!
Jae Byeon
Jae Byeon
2023-06-13
Repaired my ac. Great job. No issues.
Shirly Medina
Shirly Medina
2023-06-13
I reached out to perform a routine AC maintenance. After the work, the service technician wanted to review information with me. Of course at this point you’re thinking… here comes the upsell. Ryan mentioned that he noticed there was not a wet switch installed. He educated me on why that is important. Considering that I already had 2 leaks in the past because the units are all on the second floor, I was appreciative. I bit annoyed that no one, including the people who installed the new units never put one on. I would recommend this company.
Michele Snyder
Michele Snyder
2023-06-13
Fast, friendly and efficient!!
Sammy Charles
Sammy Charles
2023-06-13
Somehow my HVAC unit was pumping out heat in the summer making my home feel like a sauna. A quick call to Professor Gatsby, and they had someone out the very next day!! The tech was on time, professional and explained the entire process as he repaired the system. About 40 minutes later the system was fixed and cool air started to blast through the vents. We couldn’t be more thankful for the expedited response and service. I highly recommend Professor Gatsby for all your HVAC needs.
Christina Osborn
Christina Osborn
2023-06-13
Michelle Lasecki
Michelle Lasecki
2023-06-12
Great knowledgeable staff. Very nice and helped find the issue with my unit.

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