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

Avatar for Speer Air
Speer Air
4.6(
165
)
Central A/C - InstallCentral Air Cleaner - Install or ReplaceCentral Humidifier - Install or Replace+1 more

Serving Parsippany, 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 Challenger Heating & Air Condition Corporation
Challenger Heating & Air Condition Corporation
4.8(
454
)
Central A/C - Service or Repair

Serving Parsippany, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"Reliable, great customer service, and honest. Highly recommend them for all your heating and air conditioning needs. Alfredo came in and diagnose my furnace. He’s very knowledgeable and solved my furnace issue the same day. Went above and beyond to ensure the heat works like I informed the entire process while I was at work."
Furnace & water tank
Furnace & water tank
Coil Replacement
Coil Replacement
Boiler replacements

+11

Response time3 hrs
47 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Ray's HVAC
Ray's HVAC
4.7(
269
)
Central A/C - Service or RepairCentral A/C - Install - For BusinessCentral A/C - Service or Repair - For Business+4 more

Serving Parsippany, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Emergency services offered

"Ray's HVAC responded quickly to my request to repair my furnace, which could not start this year. They were able to find and fix the real cause of the issue - a bird net in the PVC pipe which blocked the air flow, and made my furnace is working again!"
New heating system with steam humidifier
Expert equipment rigging
Packaged Trane high efficiency equipment
Emergency replacements
Piping

+1

Response time6 hrs
Response rate89%
113 neighbors recently requested a quote
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+12 more

Serving Parsippany, 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!

Additional Photos
Additional Photos
Additional Photos
Response time6 days
Response rate100%
18 neighbors recently requested a quote
Avatar for Phase II Development, LLC
Phase II Development, LLC
4.5(
47
)
Central A/C - InstallDuctless Mini-split A/C - Install or Replace

Serving Parsippany, NJ and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Home Advisors directed me to an online scheduling program and within 30 minutes of an appointment being scheduled I received a verification call from the provider (Robert at Phase II). The next day he shows up on time and in the course of doing the repair (unit needed more refrigerant) he also went into the attic to ensure the unit was working properly and he verified the thermostat was in working order. So he touched all the bases. He finally left when everything was verified in working order. But the BEST CUSTOMER SERVICE was the phone call a week later to see if the air conditioning was working properly. Wow....I've never had a contractor follow up like that!"
Furnace Heaating Repair
Commercial Ice Machine
Commercial Ice Machine Service
Commercial Ice Machine Cleaning
Deli Case Repair

+12

Response time3 hrs
16 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for AAA HVAC, LLC
AAA HVAC, LLC
4.7(
189
)
Central A/C - Service or Repair

Serving Parsippany, NJ and surrounding areas

Approved

In business since 2000

Emergency services offered

Warranties offered

"I have never written a review but today it was a MUST. This morning my A.C. was not working I messaged AAA HVAC and within minutes a gentleman "JOE" called me. I explained my air conditioner was not working and with 1/2 hour a young man named "Jay" was he. He was polite, courteous and explained everything to me. NOT ONLY IS THIS COPANY OUTSTANDING BUT, ANYONE LIVING IN THE TRI STATE ARE LOOK NO FURTHER THAN "AAA HVAC FOR EXCELLANT WORK AND TOTALLY PROFESSIONAL. DO NOT HESITATE TO ALL THEM.!!!!!!!! THEY ARE AMAZING. "JOE, AGAIN THANK YOU FOR ALL YOUR HELP, AND TRULY YOU WERE SENT DOWN FROM HEAVEN. !!!!!!!! STAY SAFE AND PRAYERS ARE WITH YOU ALL. AGAIN THANK YOU......"
New installation of mini split units
Rooftop unit
Jay our Technician
Raheem Condensing units
Our trucks at the job site

+12

Response time2 hrs
Response rate88%
5 neighbors recently requested a quote
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Showing 1-10 of 543

FAQs for air conditioning projects in Parsippany, 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 Parsippany, NJ homeowners’ guide to air conditioning services

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