Licensed & Insured

Keep your home safe with licensed and insured AC technicians.

Clear Communication

It's easy to understand our advice on replacing your AC unit.

AC Install Experts

You can count on our seasoned pros for effective cooling solutions.

Having no Air Conditioner is a Hassle!

When searching for a reliable air conditioner contractor to restore comfort in your Westchester home, it’s hard to know who to trust. Are you concerned about…

  • Having a stress-free experience from start to finish?
  • Getting transparent pricing and honest advice?
  • Finding a company that understands your specific cooling needs?
  • Ensuring the installation is done right the first time?

Led by third-generation licensed master plumber Robert Mazzacone, our professional AC installations bring peace of mind to your home.

Frustrated Homeowner on Phone

You deserve a reliable AC service that respects your time!

Our Promise

With 70 years of experience as local AC installation experts, we understand the unique needs of Westchester homeowners. From selecting the right unit to ensuring proper installation, our specialists are equipped to handle every aspect of your cooling system needs. You can expect:

  • Timely Service
  • Clear communication
  • Superior workmanship
  • Efficient solutions
  • Transparent & fair pricing
  • A clean work area every visit

By choosing Mazzacone Plumbing & Heating, you’re working with a partner who cares about your comfort.

Request Estimate
What people say about us

Hear From Satisfied Westchester Residents

Rob Mazzacone and team have done excellent work for me in the past. They have handled water damage repair work, remodeling and even HVAC installation. Rob is extremely responsive, professional and his team is top notch. I highly recommend them.
Gavin Blair
“The owner Rob was professional and extremely personable during the entire process. He answered my call immediately and was able to quickly set up an appointment to have a new water heater installed. Job was beautifully done. Would absolutely recommend Mazzacone Plumbing.”
Jill Pacella
“I had an emergency and called. They responded right away. They were so helpful and courteous. I highly recommend them!”
Kerri Cranston
"Mike the Plumber is a skilled tradesman and a gentleman. He gets the job done and treats his customers with the respect you rarely see people extend to one another these days. Highest Five Star Rating."
Joseph Schifilliti
"I needed a plumber to move my kitchen plumbing over to make room in my kitchen for a new custom cabinet job. Rob was professional, responsive, and on time. The two techs who actually did the work did an awesome job. Overall I was very satisfied and recommend them to anyone needing a plumber."
Anthony T
"We had water coming out of the back of our boiler and called right away. Needed a new indirect hot water tank and a whole house water filter. They did a fantastic job, such nice guys, professional and efficient. Would highly recommend!"
Mary F
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Our Air Conditioner Installation Services

We work with all major air conditioner brands for your convenience.

Technician Wiring Air Conditioner

We assist you in choosing the right air conditioner model for your home based on factors such as size, efficiency, and features.

Installing new ductwork or modifying existing ducts to accommodate the new air conditioner.

Mounting and connecting the indoor evaporator unit, including refrigerant lines, drain lines, and electrical connections.

Placing and securing the outdoor condenser unit, connecting refrigerant lines, and ensuring proper airflow and clearance.

Testing the newly installed system to ensure proper operation, including checking refrigerant levels, airflow, and thermostat calibration.

We Make AC Installation Easy

Ready to discuss your air conditioning needs? Here’s how it works.

Step 1

Request an Estimate

Give us a call or fill out the form, and we’ll promptly make arrangements for an in-person visit.

Step 2

In-Person Assessment

Our experts conduct a quick, thorough in-home inspection to answer all your questions and provide you with an estimate.

Step 3

Efficient Resolution

Following your approval, we install your new AC unit and ensure it is running optimally.

Request Estimate

Service Locations

Our office is located at 117 Dale Ave in Ossining, NY.

We offer expert air conditioning installation services in and around the following cities in Westchester County:

  • Ossining, NY
  • Croton-on-Hudson, NY
  • Pleasantville, NY
  • Briarcliff Manor, NY
  • Chappaqua, NY
  • Montrose, NY
  • Buchannan, NY
  • Thornwood, NY
  • Tarrytown, NY
  • Sleepy Hollow, NY

Plumbing, Heating, and Air Conditioning Services in Westchester County, NY.

Westchester County Master Plumber License #1664
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