24/7 Emergency Service!


Reliable Comfort,

Expert HVAC repairs, installs and tune-ups to keep your air comfortable and healthy throughout the year in Fairfield County, CT and Westchester County, NY.

work van wrapped in Giuliani Air Conditioning and Heating logo, saying service, repairs, installs

Licensed & Insured

Work with a reputable HVAC contractor

24/7 Service

Emergency service when you need us


Family-owned, local HVAC company

You don't have time to worry about your HVAC!

It’s stressful when you can’t get your home to the right temperature. You might be dealing with these common issues:

The right HVAC company will get your system working, then put a maintenance plan in place so you can reduce problems in the future.

blue air flowing
man and woman cold on couch

Your family deserves to be comfortable!


Heating and Cooling Solutions For Your Home

At Giuliani Air Conditioning & Heating, you’re not just hiring HVAC contractors; you’re teaming up with neighbors. Led by Jack Giuliani, a second-generation contractor from Greenwich, your comfort at home is our mission.

Why choose our HVAC company? Unlike larger HVAC companies, we put people before profits, work around your schedule, and keep money in your pocket. 

Build a partnership with HVAC contractors that prioritize making your current system last – but can also handle any problems that come up throughout the life of your home. You can rely on us for preventative maintenance, system installs, and 24/7 repairs in lower Fairfield County, CT, and lower Westchester County, NY.


HVAC services – repairs, system upgrades, new installs & maintenance — for natural gas, electric, and propane systems. Click below for more information about heating, cooling, or air quality & ventilation services.



Are you ready to have your HVAC serviced?

Complete your service in 3 easy steps!

Request Estimate

Request your free estimate online, or call us directly to tell us about your HVAC concerns. We'll be in touch quickly to learn more about your problems and concerns.

Schedule Appointment

We schedule your appointment and arrive on-time ready to work. Repairs & maintenance can often be handled the same day. For bigger jobs, we'll deliver you a detail proposal after we inspect your system.

Efficient, Professional Service

Our expert HVAC technicians take care of your system, and test to make sure everything works. When we're done, we leave your home clean & comfortable for you to enjoy.

Based on 25 reviews
December 21, 2023
Jack and his team installed a new HVAC system in the first floor of our house. Their work is very neat, efficient, and works great. Communication was seamless through the whole project. I hope to refer them in the future.
Jessica Vasquez
Jessica Vasquez
July 28, 2023
I had an issue with AC on a hot summer night. I made over 20 calls throughout the night and no response. Just one and that’s these guys here.
adrian veloz
adrian veloz
July 22, 2023
Central air decided to stop working in the midst of this scorching heat, called Giuliani and it was the best experience i’ve experienced with any hvac company in the area. He taught me things i didnt know on my module!
Nicholas Wiltsie
Nicholas Wiltsie
July 9, 2023
Our HVAC unexpectedly shut off and after seeing lots of good reviews I cold called Jack. He picked up right away and made it over the same day. Despite some major issues, they were able to get the air conditioning working to at least give us a temporary fix until we can have the unit replaced. They were polite, professional, and worked quick. Highly recommend.
Matt Strati
Matt Strati
July 8, 2023
Easiest HVAC company to deal with. Jack saved the day for my house. It’s been 90 degrees recently and my ac took a turn for the worst… luckily Jack showed up and was able to solve my problem. Even had the part in stock! Couple hours later my house was so cold I could hang meat. Best HVAC company I’ve dealt with and I’ll only be using Jack from now on. He’s the guy for the job!
Rocco Messina
Rocco Messina
July 7, 2023
Excellent work . Professional and respectful. Would highly recommend this business to anyone in need HVAC servicing / install.
Ideal Tile of Stamford
Ideal Tile of Stamford
July 7, 2023
I’ve used Jack to repair my HVAC a few times. It is a 20 year old unit. He is very responsive and knowledgeable. He is great to work with.
Kaitlin Triano
Kaitlin Triano
June 29, 2023
Super responsive, and very easy to work with! Jack was able to accommodate us on very short notice. Very professional, reliable - highly recommend using Giuliani HVAC if you’re in need!
Gayle Serle
Gayle Serle
May 14, 2023
Jack was incredibly responsive to our last minute repair call. He showed up on time , was able to review the existing AC system and pinpoint the problems .. repairing all in working order in a short term .. excellent service !
May 3, 2023
Great service, quick, professional. Recommend!


You'll never have to search "HVAC contractor near me" ever again!

Let’s build a long-term relationship so you never have to worry about your HVAC not working again! Here’s Jack’s personal promise to you:

When issues arise, our prompt and dependable repair services get your HVAC systems back up and running smoothly, so you have peace of mind. You’ll always see us working efficiently so that we can get your project completed as fast as possible.

Periodic maintenance to extend the life of your HVAC system, prevent breakdowns, and expensive repairs.

Our indoor air quality solutions reduce allergens and pollutants, creating a healthier living environment for you and your family. Leverage a variety of modern technology to enhance your space.

We offer clear, transparent pricing without any hidden costs. If we ever run into a problem that requires more work, we’ll speak with you about your options and recommend the most cost-effective long-term solution.

Jack’s a second generation contractor with the skills needed to keep your HVAC system working well.

We stand behind the work and the systems we install for you.

Cities We Service

You can call us day or night for services througout these locations!