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Find Air conditioning pros in Princeton

Avatar for East Coast Comfort Inc
East Coast Comfort Inc
4.9(
579
)

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
4 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Climate Mechanics LLC
Climate Mechanics LLC
4.9(
53
)

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
18 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for AAC Heating and Cooling, LLC
AAC Heating and Cooling, LLC
4.5(
65
)

Serving Princeton, NJ and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"Just had AAC install a new central air conditioning system. Adam and John were both friendly and courteous. Very knowledgeable about what they were doing. Were respectful of our property and kept a clean work area. Excellent value for the money. They worked thru some rough conditions, bearing up with 150+ degrees in the attic. Would definitely recommend them and use their services again when needed."
HVAC
LENNOX: Heating and Air Conditioning
Carrier HVAC
LENNOX: Heating and Air Conditioning-Ductless
Lennox AC

+4

Response time1 day
2 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Whitestone Heating and Cooling
Whitestone Heating and Cooling
4.9(
30
)

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 time6 hrs
13 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Raynor Services- Electrical/HVAC/Generators/Solar
Raynor Services- Electrical/HVAC/Generators/Solar
4.5(
157
)

Serving Princeton, NJ and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"I highly recommend engaging Raynor Services for your heating/air conditioning needs. Our technician, Matt, was very friendly, courteous and efficiently diagnosed and planned the remediation of our heating problem. He took the time to point out what was wrong and provided some extra measures we could take, should we decide to, in the future. No sales pitch, no pressure to add additional costs. Extremely satisfied with Raynor’s friendly service, quick response (less than 1.5 hrs from my call) and low costs to return our heating system back in working order. We will continue to call on Raynor Sevices for all of our heating & ac needs."
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Replacing an outdoor air conditioner with a high efficiency, consumer reported top rated American Standard unit.  Level, wired properly, and completed beyond code and required standards.  Thank goodness for a team that cares and loves what they do AND our customers.
Great technicians who have amazing skill and are just good humans too.

+6

Response time11 hrs
Response rate92%
59 neighbors recently requested a quote
Avatar for Petro Home Services
Petro Home Services
4.3(
103
)

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
16 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Horizon Services, Inc. (NJ)
Horizon Services, Inc. (NJ)
3.9(
1,635
)

Serving Princeton, NJ and surrounding areas

Approved

In business since 1989

Emergency services offered

Warranties offered

"Only wanted to sell me a complete HVAC unit. Immediately said that condenser was obviously short of Freon and that they would have to replace condenser, coil and heater unit. Two other HVAC experts also quoted for job. Air Conditioning was not working because air handler needed to be replaced. Other HVAC expert was awarded job."
Horizon Services Heating & Cooling
Horizon Services Heating & Cooling
Horizon Services Heating & Cooling
 Horizon Services Heating Installations
 Horizon Services Heating Installation

+19

26 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for North East Home Services
North East Home Services
4.2(
87
)

Serving Princeton, NJ and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"Mike was a pleasure to work with,him and his crew installed a central air conditioning system in a house that never had central air. I'm very impressed with what they did in and outside of my house. when I met mike I didn't even think about another estimate,they were on time and completed the job as promised. You can count on air management. They didn't let me down,good job fellas keep up the good work."
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Response time1 day
Response rate89%
30 neighbors recently requested a quote
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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.