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Residential HVAC
Contractor

Experienced Professionals in Heating, Cooling, and Air Quality

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Keeping Your Indoor Climate Perfect

Reliable Air Systems:

Your HVAC Experts

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Residential HVAC Services

At Reliable Air Systems, we specialize in providing a comprehensive range of residential HVAC services to ensure your indoor comfort. Our team of experts is dedicated to delivering top-notch solutions tailored to your specific needs and preferences.

Light Commercial
HVAC Services

With our extensive experience in commercial HVAC services, we are committed to optimizing the performance of your heating and cooling systems. Our goal is to create a comfortable and productive environment for your business.

Our Specialties

From air conditioning and heating to mini split systems and heat pumps, we excel in a wide range of HVAC specialties. Our focus is on enhancing your comfort and energy efficiency.

Who We Are

About Reliable Air Systems

Reliable Air Systems has been the go-to residential HVAC contractor for the CT Valley area, New Haven County, and Fairfield County. Our dedication to excellence and customer satisfaction sets us apart in the industry.

1000+

Years of Experience

Projects Completed

500+

Happy Customers

Benedetto Posta Jr.

Owner, Reliable Air Systems

Our HVAC Solutions

We are dedicated to offering a comprehensive array of HVAC solutions to meet the diverse needs of our clients. From installations to repairs and maintenance, we have you covered.

Our team of skilled technicians is committed to delivering high-quality HVAC services to ensure your complete satisfaction.

Heat Pumps

Emergency Repairs

New Installations

Ductless Systems

Thermostat Upgrades

Sheet Metal

Fabrication

What Sets Us Apart

Our Projects

At Reliable Air Systems, we take pride in our successful projects and the positive impact we have made on our clients' comfort. Explore our portfolio to see our exceptional work.

Our Happy Customers

Carolina

Very professional, knowledgeable, and friendly! Explained everything. Quick to answer the phone and respond. Good prices! This will be my HVAC company from now on. Very satisfied customer!

Brands that we Trust

Dont be stuck in the cold this year. Call us at 203-305-6453 and well bail you out! We also offer 24/7 Emergency service needs to get your heat running in a jam. We look forward to serving your HVAC needs!

SATURDAY MADNESS. A good customer of ours old gas boiler crapped out on them, leaving them with no heat. It was old and needed to go. They decided to go with a Navien Combi boiler instead of throwing money into a 27 year old boiler. We took the old water heater and old gas boiler and put it into one tankless unit and opened up what was already a small space. Call us today to speak to one of our experts about upgrading your old system! 203-305-6453

At Reliable Air Systems we specialize in Mitsubishi City Multi units. Check out this recent install for one of our great customers. 2 and a half ton airhandler in attic left with plenty of storage space, which is serving the upper level and a 1 ton ductless wall mount serving the downstairs all on one outdoor condenser. Give us a call today at 203-305-6453 so we can help you design your very own system!

It's time for winter tune ups again! A winter tune-up consists of a deep brushing of the boiler/furnace. In the above picture, you can see the before/after of a brushing to a boiler. The soot build-up will lower efficiency and cost you money in the long run, and the boiler will eventually shut down. We also change the oil filter, burner nozzle, and burner strainer. Lastly, we set each unit up with a combustion analyzer for maximum efficiency. Call us to schedule your systems winter tune-up today! 203-305-6453

Second day progress on a new install. We are installing two Rheem propane 92% furnaces with air conditioning . One will be in the basement for the first floor, and one will be in the attic for the second floor. Stay tuned for more progress. Call us today for a FREE estimate 203-305-6453. 24/7 service available

BEFORE/AFTER* Replacement of a wood or oil furnace and A/C with a new Rheem oil furnace and air conditioning system. The customer decided he was done burning wood and wanted an upgrade before the cold weather moved in. Call us for your winter tune-up or a FREE estimate for your own upgrade. 203-305-6453

Two ton mitsubishi heat pump install almost complete. Call us today for your very own mitsubishi heat pump estimate 203-305-6453. We also offer 24/7 service on all HVAC equipment! Call us today!

Heating season is right around the corner. Our customer in shelton decided to upgrade his old gas heating furnace with a new 90% Rheem gas furnace with new ac before it got cold. Call us for your FREE estimate today! 203-305-6453

Check out this 4 zone Mitsubishi ductless heat pump system. There are 3 ductless wall mounted units on one condenser and a single floor mounted unit on one condenser. Great addition to any house for A/C and heat when there is no option for ductwork. Throw those heavy and noisy window A/C's and call us today for a FREE estimate. 203-305-6453. We look forward to meeting you

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203-305-6453

Servicing a 2 zone full home hydro/central ac system install from last yr. Call us at 203-305-6453 to set up an appointment for a free estimate today!

SWIPE 👉 to check before and after on this emergency A/C swap out. New 4 ton Rheem system Installed and running within 3 days of old one dying. Call us at 203-305-6453 for FREE estimates or emergency service 24/7

Dont wait any longer to upgrade that old system. Even if a system is working it can be costing you tons of money to run due to how inefficient the system is running. Call us today for a FREE estimate for an upgrade. 203-305-6463 Swipe for before 👉

Fixing an AC on these brutal summer days. Call us for 24/7 service or a FREE estimate today 203-305-6453

Panasonic multi city ductless heat pump system. If you're tired of lugging those window AC units in and out every year, then give us a call and allow us the opportunity to get you a FREE estimate for your own system 203-305-6453

Does your outdoor condenser look like this? If it does, then your house probably isn't cooling as it should and costing you a lot in your electric bill in the long run. We are scheduling ac tune ups now. Let us take care of it for you! 203-305-6453

Before➡️After.. Save money on your electric by upgrading your old a/c system. FREE estimates at reliable air systems✔️ 203-305-6453

No matter the space, we will find a way if you want central AC. You dont have to sweat anymore. Call 203-305-6453 for FREE estimates

The world is changing around us. More ductless units are going in versus the conventional central air systems. There are pros and cons to both units. If you want more information, give us a call at 203-305-6453, and we would be glad to talk about which fit is best for you!

AC season is upon us! Booking now for spring tune ups. 203-305-6453. Dont wait till its too hot!

Ready for the rough inspection at this condo in shelton that previously burnt down. We have a full sheetmetal shop ready to craft your ductwork. Call for free estimates 203-305-6453

Second day progress on a 4 ton Rheem Endeavor series central A/C system install in Orange Ct. Tomorrow we install mechanicals and start it up. Call us anytime for a free estimate. 203-305-6453

Finishing up a rough with a Mitsubishi Airhandler heat pump system for a small addition in Orange CT. Dont wait till you're sweating this year to give us a call. 203-305-6453. Estimates and information are free 😄

Upon arriving to this this call, the customer had nothing but issues with his 4 yr old system. Uneven temps all over the house. Unit would shut off due to vent pipe wrapping all around unit and not being pitched properly along with many other issues. The customer was also told he couldn't have a media filter from other companies. The system was installed by someone who had no clue what they were doing. We decided the best option was to start over. We threw all ductwork away and reinstalled it all, spliting the system into two separate zones for his upstairs and downstairs. We also added a media filter and re piped the venting properly. Swipe for before pictures >>>>. If your having trouble with your heating/AC system. We are only one phone call away 203-305-6453 👍

Here at Reliable Air Systems we specialize in oil and gas so either way we got you covered. Call or text 203-305-6453 for some information on upgrading you Heat/AC systems

Installation of a Mitsubishi airhandler in a tight attic for a customer in Weston. Did you know Mitsubishi ductless can run in extreme low and high temps and are all electric and very efficient for where you can't get to a fuel source. They also come in all different applications. Call us today before the heat hits for a free quote! 203-305-6453

A 2 zone Rheem gas forced hot air system with A/C for a customer in naugatuck. Call us for a free quote! 203-305-6453 Dont forget to on our schedule for spring A/C tune-ups

Complete rehab of a 6 family house in ansonia. Repurposed four gas furnaces in basement for 1st and 2nd floor apartments and added two 90% Rheem gas furnaces in attic for the 3rd floor. We have an entire sheetmetal shop ready to make your ductwork! Call us for a free quote 203-305-6453

A Navien combi and water heater install with 2 airhandlers for a customer in Milford we did this past year. Call us for free estimates 203-305-6453

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