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Top-Rated Air conditioning pros in Millstone - Updated Nov 2026

Avatar for LIV AIR
LIV AIR
5.0(
14
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+2 more

Serving Millstone, NJ and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

Air Conditioning and Heating Services - We're a team of experienced and qualified HVAC technicians dedicated to providing exceptional service, expert repairs, and top-notch installations for your Cooling and Heating systems.

Heating & A/C Project
Heating and Air Conditioning Project
Heating and Air Conditioning Project
Heating & A/C Project
Heating & A/C Project

+46

Response time1 day
Response rate100%
2 neighbors recently requested a quote
Avatar for Speer Air
Speer Air
4.6(
165
)
Central A/C - InstallDuctless Mini-split A/C - Install or Replace

Serving Millstone, NJ and surrounding areas

Approved

In business since 1958

Free estimates

Emergency services offered

"I have used Speer Air for several years for HVAC preventive maintenance at my home. We recently expanded and they installed a package unit to take care of the expansion space. The work was good and they have been back for adjustments as necessary."
Residential Attic Install
Commercial Multi Unit Install
Guardian Series
Response time2 days
Response rate100%
5 neighbors recently requested a quote
Avatar for Valairco
Valairco
4.7(
224
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Millstone, NJ and surrounding areas

Approved

In business since 1968

Free estimates

Emergency services offered

"Angie’s list has Valairco listed as #1 in my area for home HVAC and my 30 year old York R-22 central ac has been leaking for a while. I had Valairco give me a quote to replace the air handler, and the outside compressor, condenser unit with a new unit that uses the new R410a Freon. The estimate seemed a bit high but I was surprised that I wasn’t offered any refund for whatever R-22 they reclaimed from my old system. I started entertaining other quotes when I received an e-mail from Valairco. I responded and explained my disappointment for not being offered something for the reclaimed R-22. I got a phone call shortly after that and was told if I could have it installed the following Friday they would reduce the price by $250.00. I agreed to have them install it. The day prior to installation a plumbing supply truck arrives in front of my home. The driver unloads all the parts for the job in the pouring down rain. I thought it was odd not to alert me since some items would not be helped by a good soaking. I put those inside. It turned out that the plumbing supply delivered a day earlier than instructed. The installers arrived on 7:00 am on Friday. They started disassembling the old system. Two more men from Valairco arrived. It was decided that it was easiest to remove the attic ladder to make room to lift the new air handler into place. As soon as it was up the two additional guys left and for the next 9 1/2 hours the two installers worked in the attic and outdoors to finish the installation. Overall I am pleased with the competence of the installers. I am also pleased with how well they cleaned everything up after they were finished. The new raceway looks better and the thermostat has Automatic Changeover and Adaptive Intelligent Recovery which are nice features. They also do the first year preventative maintenance at no additional cost. The price was exactly what they had quoted. No taxes or hidden costs were added. I was not pleased with a few things. Valairco is poor at communicating. I was told that it would be a two day install at time of quote but they completed it in one marathon day. The installers changed the orientation of the air handler to make it easier to service. It isn’t an issue but it would have been nice to be asked. What if I wanted it that way for storage? My attic ladder was reinstalled with 5 bolts when it is drilled for 6. Maybe one was missing before they started or maybe they lost one. Either way they left it with 5 and did not tell me. The installers relocated the hole where the lines exit the attic through the soffit and patched the unused area with a piece of galvanized steel because they didn’t have any white aluminum on their truck. Not only did it look bad but when you screw unlike metals together you start a corrosive process. I’ was not looking forward to seeing rust stains running down the side of my house. The attic routing of the copper and electric lines are hanging in midair and looks sloppy and amateur. Only one clamp holds it to a joist and it only has one screw. The rest of it hangs 6” below the joists for no reason and creates an unnecessary obstacle. Valairco did not know that I was displeased right away. After reading my initial review here, Richard Valenti, Valairco founder, personally calls me. I did not realize that they normally do their follow up a month after completion, in order to give the customer time to use the unit under a number of weather conditions. He sent Kevin back with the installers to make me happy. They fixed the soffit with a new piece of aluminum. They put anew bolt in the attic ladder. They put a strap hanger on the lines. Kevin offered to come back after cooling season to replace the lines if I am still not happy with them. I asked him if he would have done the installation the way his installers did and if he found the installation satisfactory. Kevin did not answer. It was obvious they returned to satisfy me whether my expectations were valid or not. I am pleased that they returned and I can say that customer satisfaction is important to them."
24 Hour Service
Trained Technicians
Quality Products
Additional Photos
Additional Photos

+44

Response time1 day
8 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for No 1 Cleaners
No 1 Cleaners
4.8(
295
)
Air Ducts & Vents - Clean

Serving Millstone, NJ and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"I'm very happy with the work performed by this company plus the technician explained to me in detail of the work he was going to do as well as the correct way the dryer vent should have been installed before as the the exhaust vent was connected to the lower vent instead of the higher vent, saying that connecting it to the higher vent gave it more room for the lint to collect before it started clogging up the exhaust. The air duct cleaning was also conducted professionally and I have no complaint about their work. I would hire them again the next time my heating and cooling ducts needs cleaning. I'd recommend them to my friends."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+13

Response time9 hrs
Response rate100%
16 neighbors recently requested a quote
Avatar for Advanced Aardvark Airduct Cleaning Company
Advanced Aardvark Airduct Cleaning Company
4.7(
1,167
)
Air Ducts & Vents - Clean

Serving Millstone, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2001

Free estimates

Customers say: True professional

"The service man that came out to my momâ s house did an excellent job explained everything. He seem to be very knowledgeable he also gave us a few suggestions about the air filter that we were using and I really took the time I couldnâ t be happier"
Before cleaning
After cleaning!
Response time9 hrs
1 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Petro Home Services
Petro Home Services
4.4(
1,786
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Millstone, NJ and surrounding areas

Approved (Corporate)

In business since 1903

Emergency services offered

Warranties offered

"

we had a leak problem and the tech came and looked over our equipment, fixed the problem and left. It cost us nothing and we have had their home heating service contracts for over 20 years.  They have NEVER ONCE not shown up or not helped and in the two furnace emergencies we had--they were here with in 1hr. 

We are very happy.


"
Additional Photos
Additional Photos
Additional Photos
Response time6 days
Response rate100%
18 neighbors recently requested a quote
Avatar for Advanced Heating & Air Conditioning
Advanced Heating & Air Conditioning
4.3(
87
)
Central A/C - InstallDuctless Mini-split A/C - Install or Replace

Serving Millstone, NJ and surrounding areas

Approved

In business since 2009

Free estimates

Credit card accepted

"Nick and the guys were professional, friendly and did an outstanding job! We had them replace our central air conditioning. They did a terrific job. We will continue to use their services for annual Service on our ac and our Furnace. Heating or Cooling. these are the guys to call. Dependability, Expert knowledge and friendly service. It was important to our family to have a service company who will be there after the install and service and maintain our equipment."
Response time30 mins
Recommended by96%of homeowners
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Air Conditioning FAQs, answered by experts

You may be able to clean mold from your air conditioner in some cases. If the mold growth only takes up a small area, you can use either vinegar or bleach mixed with water to remove it. Larger areas of mold should be left to the professionals, though. It's also a good idea to leave mold removal to the pros if you are sensitive to mold or have asthma. 

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

If you don't clean your AC evaporator coils, dirt and debris will build up, which impairs the system's ability to transfer heat. This forces the unit to work harder, leading to inefficient performance, higher energy bills, and frequent breakdowns. Over time, neglected coils can corrode, which may cause refrigerant leaks, or develop mold, ice buildup, and a clogged condensate drain, resulting in poor air quality and an uncomfortable home.

The outdoor portions of air conditioners are designed to weather the rain, so you don’t need to worry about it. An awning or roof will help protect them from snow or falling debris, which can do more damage. This is true of both window AC and outdoor units for larger systems.

To keep your air conditioner in good working condition, you should have it serviced by a professional at least once per year, ideally in the spring before the cooling season begins. If your AC unit is 10 years or older, consider servicing it twice a year (once in the spring and once in the fall) to catch potential problems early and help it reach its full lifespan. During a service visit, a technician will inspect, clean, and replace parts as needed. Regular maintenance helps avoid costly repairs. As a DIY task, you can also clean the evaporator coils annually.

The Millstone, NJ homeowners’ guide to air conditioning services

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