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Find Air conditioning pros in Princeton

Avatar for East Coast Comfort Inc
East Coast Comfort Inc
4.9(
579
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Princeton, NJ and surrounding areas

Approved

In business since 2006

Emergency services offered

Credit card accepted

"I have been using East Coast Comfort for heating and air-conditioning for years and I have always been pleased. They installed a new system for us years ago, did it for far less than other estimates we received, and we have reduced our energy costs because of it."
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Response time2 days
Response rate99%
6 neighbors recently requested a quote
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Avatar for Climate Mechanics LLC
Climate Mechanics LLC
4.9(
53
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Install - For Business+12 more

Serving Princeton, NJ and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"They took a look at the air conditioner which was not cooling my house. They refilled with freon and then recommended some changes. Price was good. The worker they sent was definitely experienced, he went right out to identify the problem. Pretty personable. He didn't mind me looking at what was going on."
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+4

Response time1 day
13 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Arctic Air Conditioning
Arctic Air Conditioning
4.8(
867
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceCentral A/C - Service or Repair

Serving Princeton, NJ and surrounding areas

Approved (Corporate)

In business since 1977

Free estimates

Emergency services offered

"Air conditioning repair. Tim was a very knowledgeable service technician and he was able to advise on how to best approach my air conditioning issue. Explained everything thoroughly. Polite and respectful!"
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+6

29 neighbors recently requested a quote
Recommended by96%of homeowners
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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 Princeton, NJ and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Liv Air was very professional and friendly! I would hire them again!"
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
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Avatar for Horizon Services, Inc. (NJ)
Horizon Services, Inc. (NJ)
3.9(
1,637
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceCentral A/C - Service or Repair+4 more

Serving Princeton, NJ and surrounding areas

Approved

In business since 1989

Emergency services offered

Warranties offered

"Got the job done and didn’t over charge me my ac unit just needed to be clean"
Horizon Services Heating & Cooling
Horizon Services Heating & Cooling
Horizon Services Heating & Cooling
Horizon Services Heating Installations
Horizon Services Heating Installation

+19

19 neighbors recently requested a quote
Recommended by88%of homeowners
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Avatar for AAC Heating and Cooling, LLC
AAC Heating and Cooling, LLC
4.5(
65
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Princeton, NJ and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"Adam and Nate installed my new HVAC system in my home. This is my second time dealing with Adam since 2013. Adam is very honest and professional. My family is very satisfied with our new AC system. I would definitely recommend these guys for all of your heating and cooling needs."
HVAC
LENNOX: Heating and Air Conditioning
Carrier HVAC
LENNOX: Heating and Air Conditioning-Ductless
Lennox AC

+4

Response time1 day
Recommended by98%of homeowners
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Avatar for Raynor Services - HVAC/Plumbing
Raynor Services - HVAC/Plumbing
4.5(
162
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Princeton, NJ and surrounding areas

Approved

In business since 1993

Free estimates

Credit card accepted

In 1993, Tom Raynor began taking on electrical construction and service jobs across southern New Jersey. With just one assistant and one beat-up truck, Tom crisscrossed the state, building a reputation for his small outfit as one that offered professional, hands-on service and reliable, high-quality results. By 1994, it was official—Raynor Services was born! \n\nSince then, that red pick-up has been upgraded to a fleet of ten fully stocked trucks. We are now a “one-stop shop” service company, specializing in electric, heating, cooling, and generator services. Raynor Services has never lost the spirit of professional, hands-on service that it was founded on. Family-owned and operated, we combine small-business service with big-business expertise. \n\nRaynor technicians are among the best in the industry. Each must complete a rigorous hiring process – including a background check, a drug test, and an HVAC or electrical proficiency examination.

Raynor Tech Homeowner
Raynor Tech Homeowner
Raynor Tech Homeowner
Raynor Tech Homeowner
Raynor Tech Homeowner

+19

Recommended by86%of homeowners
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Avatar for Air Experts Heating, Air & Plumbing LLC
Air Experts Heating, Air & Plumbing LLC
4.3(
74
)
Central A/C - InstallCentral A/C - Service or RepairCentral Humidifier - Repair or Service+3 more

Serving Princeton, NJ and surrounding areas

Approved (Corporate)

In business since 1994

Emergency services offered

Credit card accepted

"Installed ductless air conditioning. They were fast, efficient and easy to work with. Weâ ve had other contractors here since the installation and every one of them was impressed with Air Experts quality of work."
Job Complete
RTU1
RTU Install
Mitsu Mini Split heat pump
Mini Split interior handler

+3

Response time1 day
Response rate92%
419 neighbors recently requested a quote
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Avatar for Whitestone Heating and Cooling
Whitestone Heating and Cooling
4.9(
30
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For BusinessCentral Air Cleaner - Repair or Service+6 more

Serving Princeton, NJ and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Oscar was amazing. After determining that the wrong air handler was ordered (not their fault, third party did the quote and ordering) he was able to get our old and broken AC working short term until the right parts (that he specified) can be available."
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+14

Response time5 hrs
2 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Petro Home Services
Petro Home Services
4.3(
103
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Princeton, NJ and surrounding areas

Approved (Corporate)

In business since 1903

Emergency services offered

Warranties offered

With over 100 years experience, we know how to keep you comfortable, safe and help you save on energy costs. Our local 24/7 customer service and support means automatic heating oil deliveries and our service response is always fast. We never run out of heating oil plus our pricing and payment plans are designed to help you manage your costs all year round. Experience the Petro difference today!

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Response time6 days
Response rate100%
17 neighbors recently requested a quote
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Showing 1-10 of 371

FAQs for air conditioning projects in Princeton, NJ

Most professional HVAC technicians require two to three hours to complete an expansion valve replacement. The timeframe depends on your unit's accessibility and whether additional repairs are needed. The process involves recovering refrigerant, removing the old valve, installing the new component, and recharging the system. Scheduling during less busy seasons may result in more convenient appointment times.

Operating your air conditioner with a malfunctioning expansion valve isn't advisable. Continuing to run the system could potentially damage other components, particularly your compressor, which is significantly more expensive to replace. If you notice performance issues like inconsistent cooling or unusual noises, it's best to have your system inspected before continuing regular use.

Expansion valves don't have a standard replacement schedule, as their longevity depends on system usage, maintenance frequency, and environmental factors. Regular professional maintenance helps identify potential valve issues before they cause system failure. Having your HVAC system serviced annually allows technicians to monitor component condition and recommend preventative replacements when necessary.

Refrigerant leaks require prompt professional attention. If your expansion valve is leaking, you'll likely notice reduced cooling performance and possibly hear hissing sounds near the unit. Addressing leaks quickly prevents further system inefficiency and avoids the environmental impact of released refrigerant. Your HVAC technician will need to repair the leak and recharge the system with the proper refrigerant type and amount.

Because many AC issues present similar symptoms, professional diagnosis is recommended. Problems like inadequate cooling, inconsistent temperatures, or strange noises could indicate expansion valve issues, but might also stem from refrigerant leaks, electrical problems, or airflow restrictions. A qualified HVAC technician has the tools and expertise to accurately identify the root cause and recommend appropriate repairs.

The Princeton, NJ homeowners’ guide to air conditioning services

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

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