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4.5

(355 reviews)

Top-rated heating and air conditioning pros.

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Avatar for Wayne Refrigeration Air & Heat
Wayne Refrigeration Air & Heat
5.0(
9
)

Serving Demarest, NJ and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"My wife and I appreciated the time Wayne took explaining what needed to be done and answered all of our questions prior to and during the installation. He and his crew did an excellent job installing the 2 high efficiency HVAC systems. Both systems are running well. I thank Wayne for his ongoing dialogue during the installation which gave us confidence in the quality of his workmanship. Even though the systems installed were an upgrade the cost was less than all the other installers that gave us price quotes for the project."
Additional Photos
Response time8 hrs
2 neighbors recently requested a quote
Recommended by62%of homeowners
Avatar for A&C Quality Air, LLC
A&C Quality Air, LLC
4.3(
157
)

Serving Demarest, NJ and surrounding areas

Approved

In business since 2006

Free estimates

Warranties offered

"The experience with Caesar and his A&C team was fantastic. Very competitive pricing for replacing my central air system (and the initial quote was also the final price). More importantly the work performed was very thorough - Caesar took his time to do the job the right way. Meticulous clean-up at the end of each day was also much appreciated. Overall great, highly-skilled professional who I would gladly reccomend to friends and family for their HVAC needs."
A/C
A/C
A/C
A/C
A/C

+26

18 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Celestial  Air HVAC, LLC
Celestial Air HVAC, LLC
4.3(
81
)

Serving Demarest, NJ and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"First Alfano Mechanical Inc. came to my home, said they would do the job and called the office told them to get me on the schedule ASAP. Gave me a price per hour. Well he never called back to this day. Would not recommend them to no one. Job was to HARD for them. Also I had my AC on my worry free with PSEG and they made me take it off because they would not work on my unit in the tight spot that it was installed in my attic 11 years ago. SO WITH THAT BEING SAID: Celestial Air HVAC called when I first contacted Home Advisor and after not hearing back from Alfano(which I would not have hired because they didn t live up to anything he said while here), I called Celestial(and so glad I did) and they came the next day, said it was a hard job and a mess but nothing they couldn t handle. Anthony and Gus came the next day worked their butts off and I have my central air conditioning working right after 11 years. Great price and did over and above what was told to me in the beginning. I would recommend them to everyone and give them a 5 *****. We are very Happy People now. 👍👍😊😊"
Williamson Oil Boiler
Unit Replacements
Hier Oil Furnace
Unit Replacements
York Gas Furnace

+10

Response time6 hrs
Response rate85%
9 neighbors recently requested a quote
Avatar for Ray's HVAC
Ray's HVAC
4.7(
252
)

Serving Demarest, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Emergency services offered

"My heating system wasn’t working properly, so I put the job at Angie’s list and Ray was the first one to call, very professional and he sent his tech (Isiah) right away and was able to remedy the issue in a timely manner. Very happy with the service with Ray’s HVAC and Isiah. Saving their contact details as my HVAC guy from now on."
New heating system with steam humidifier
Expert equipment rigging
Packaged Trane high efficiency equipment
Emergency replacements
Piping

+1

Response time6 hrs
Response rate88%
133 neighbors recently requested a quote
Avatar for Green Apple Mechanical
Green Apple Mechanical
4.8(
74
)

Serving Demarest, NJ and surrounding areas

Approved

In business since 2001

Emergency services offered

Warranties offered

"Amro came over within the hour and looked at the pipe. I told him that I recently lost my job due to Covid and he worked with me on the price. He completed the job in minimal time and was meticulous about cleaning up after himself. As he was leaving, I asked him a question about my gas fireplace and he took the time to look at it, fix and and make sure it was safe to use. He even made me turn it on and off so he could watch that I was doing it correctly. I can't recommend him enough. He is now my plumber/HVAC guy."
Additional Photos
Additional Photos
Additional Photos
air conditioning system repair nj
heating and air conditioning service nj

+4

3 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Overall Heating and Cooling, LLC
Overall Heating and Cooling, LLC
4.7(
201
)

Serving Demarest, NJ and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Communicated through the job was great., Samer was knowledge about my HVAC systems and offered solutions to fix my heating issue . Confident to call again for other HVAC issues."
Our work
Our work
Our work
Our work
Our work

+17

Response time1 hour
Response rate94%
40 neighbors recently requested a quote
Avatar for REEM AIR LLC
REEM AIR LLC
5.0(
21
)

Serving Demarest, NJ and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"Mo is honestly a breath of fresh air. The quality of his work is second to none. He is brilliant. He works to find solutions. He does not sell you on anything but, instead, gives you options to make decisions. Mo is a wonderfully kind man. He is trustworthy with excellent communication. He always arrives on time. I could go on and on, but he really is a gem of a find. I highly recommend his company and would use him for anything HVAC related."
Commercial Install
Commercial Install
Commercial Install
Commercial Install
Commercial Install

+4

Response time2 hrs
Response rate87%
Recommended by100%of homeowners
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Heating and Air Conditioning questions, answered by experts

Yes, the furnace and AC use the same blower. The blower is located in the base of the furnace and pushes hot air out of the furnace and into the ducts. It also pushes cool air through the home when the air conditioning is on. Even though the furnace and air conditioning work independently of one another, the blower is an essential component for both systems.

At a minimum, an HVAC system should be serviced once per year. However, a twice-a-year service schedule—once in the spring for the cooling system and once in the fall for the heating system—is often recommended, especially for older systems, heat pumps, or in climates with extreme temperatures. Regular service, which includes inspection, cleaning, and maintenance, ensures the system runs efficiently, helps prevent costly breakdowns during peak seasons, and can extend the unit's lifespan. You can also schedule a service if you notice issues like poor performance or strange noises.

There are ways to detect a refrigerant leak with several different testing methods. However, most homeowners can figure out something’s wrong with their AC unit by noticing these common signs:

  • Ice forming on the evaporator coil

  • Water leaks near the AC unit

  • Frequent hissing sounds

  • Increased electric bills

  • Unit takes longer than usual to cool

  • Unit is blowing hot air

On average, an AC unit lasts between 10 and 20 years. However, the specific lifespan depends on the type of unit, how often it's used, the local climate, and the quality of maintenance. Central AC units typically last 12 to 17 years, while window units have a shorter lifespan of 8 to 10 years. Portable AC units last about 5 to 10 years, and ductless mini-split systems can last up to 20 years. To extend the life of your AC unit, it's important to perform regular maintenance, such as replacing filters, cleaning coils, and scheduling annual professional tune-ups.

Split systems are the most common type of HVAC system. Split systems have two main units: an indoor one and an outdoor one. These units work together to pull in air, heat or cool it, and distribute it throughout your home. Other popular types of HVAC systems include hybrid systems and packaged heating and air systems.

The Demarest, NJ homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.