Get Your



A.J. Leto & Sons Plumbing & Heating service truck.

Ensure you are at a comfortable temperature in your home at all times. We can help with any heating system to ensure warmth in the winter.

It’s important it is to have a regulated indoor temperature with air conditioning systems to keep you cool and calm in the summer.

We can help install, repair, and maintain your plumbing, so you never have to worry about leaks or drainage issues, inside or outdoors.

Having our highly trained experts inspect and clean your equipment on a regular basis can keep your investment working well for years to come.



A.J. Leto & Sons Plumbing, Heating & AC in Johnson City, NY, can handle any and every heating, air conditioning system, and plumbing-related problem you can think of. We want you to get the most out of your home, so we work hard to ensure that your heating system keeps you warm, your air conditioning keeps you cool, and your plumbing works at its absolute peak performance! We use the latest materials and high-efficiency equipment. We will ensure your issue is resolved and your home returns to being comfortable as soon as possible.

Power outages got you worried?

Generac keeps your home comfortable and safe during blackouts with automatic backup power. Get peace of mind, weather the storm, and protect your appliances - all with Generac.


A quick shout out to A.J. Leto & Sons (namely, Steve and Vaughn). We had a major plumbing issue (you have to love the older EJ homes). They did the finest professional work in a timely fashion and I was very happy with the final price. It’s nice to have trades persons that know their “stuff” and not someone who thinks they know what they’re doing, but doesn’t. Thanks again!!!

- Ron B.

I have been using AJ Leto & Sons Plumbing for all my plumbing needs in my home, rentals and my business for many years now. I can always count on them to be prompt an professional AND they get it right the first time. I never call anyone else.

- Gordon D.

A.J. Leto & Sons Plumbing & Heating service truck.


I always have excellent service from AJ Leto. They are prompt, professional, courteous, and their prices are great. I have used them for years. So reliable. Technician I had today was great. Very personable and hard working. Love that they are a local family owned business. Very safe Covid practices. Highly recommended.

- Lisa S.

This is the best company I have dealt with in years. The person that answers the phone is always very nice and polite. They always send texts keeping you up to date on when they will arrive and who will be coming. And the plumber is great. Very nice, very knowledgeable and very helpful. I would highly recommend them to anyone.

- Sandy W.

Very professional and the men are very nice and very honest, also job well done.

- Beatriz M.



As an American-Standard® Platinum dealer, we can keep your family healthy and feeling comfortable all year long. Platinum status means our team is able to offer customers an extended warranty on new systems absolutely free for up to 12 years. We'll register your system so you don't have to worry and we're the area's only American-Standard® Platinum dealer. We carry a complete line of indoor comfort equipment with innovations that raise the standards of comfort and reliability, including air conditioners, heat pumps, gas furnaces, programmable thermostats, ductless split systems, and more!

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We’re Hiring at A.J. Leto & Sons!

Considering a career in the plumbing and HVAC sector?

Look no further! A.J. Leto & Sons has an opportunity for you.

Do you enjoy challenges and helping others? Join our team! We believe in creating a stress-free work environment that promotes teamwork, support, and leadership skills. With the rising demand for technicians in the HVAC and plumbing field, there has never been a better time to embark on a rewarding career with us. If you think this could be the right fit for you, apply today!


5 Common AC Problems

When your air conditioner (AC) is running at peak efficiency, you win. Not only will your electric bills in New York be cheaper––your AC system will last longer. Plus, your equipment will be operating at its best, so you will experience maximum comfort.

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Why Is a Home Dehumidifier Important?

Our professionals at A.J. Leto & Sons want to provide you with the information to create a healthy, comfortable environment for you and your family. Here is some important information about dehumidifiers and the role they play in your home’s health and comfort.

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What You Should Know About Air Handlers

A heating, ventilation, and air conditioning (HVAC) air handler unit, or AHU, may resemble a furnace in appearance, but its purpose is very different. It conditions and circulates both cool and hot air, depending on what time of year it is.

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