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Find Air conditioning pros in Cedar Knolls

Air Temp Service Company, Inc.
4.2(
143
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceCentral A/C - Install - For Business

Serving Cedar Knolls, NJ and surrounding areas

Approved

In business since 1997

Free estimates

Emergency services offered

"Mario was very professional and knowledgeable. He always answered any questions I had promptly and thoroughly. I had questions about sizing and seer rating for the unit and he let me know which one would best fit my situation. The crew always cleaned up after themselves and left the place like they came. They installed a new air handler and compressor in 1 day and came back to add an attic fan."
Weil Mclane bolier
 Rheem hot air furnace
 Buderus Boiler & ht wtr
 15 zone radiant heat
 Rheem A/C install

+1

Response time1 day
23 neighbors recently requested a quote
Recommended by84%of homeowners
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 Cedar Knolls, NJ and surrounding areas

Approved

In business since 1958

Free estimates

Emergency services offered

"Excellent! The team worked diligently for 5 days to install a central air system in our old house with Plaster Walls. It was NOT easy, yet they did a fantastic job. They were able to add all ducts to the first floor with out any "chases" or enclosures requiring to be build. And almost none of our first floor lines up with our second floor closets, but they figured it out. Great time and fantastic service. Make sure you get Brandon and Sean. The work their butts off, and ensure your house stays clean (they cleaned up everything after every day - not an easy feat). Cannot say how happy am I with their work!"
Residential Attic Install
Commercial Multi Unit Install
Guardian Series
Response time2 days
Response rate100%
6 neighbors recently requested a quote
Avatar for Ray's HVAC
Ray's HVAC
4.7(
265
)
Central A/C - Service or RepairCentral A/C - Install - For BusinessCentral A/C - Service or Repair - For Business+4 more

Serving Cedar Knolls, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Emergency services offered

"I was having a problem with my air conditioning. The thermostat was blank. I called Ray?s HVAC. They came over and identified the problem. Then they came back two days later and fixed it. Everything is working fine now. I would use them again and recommend them to people I know."
New heating system with steam humidifier
Expert equipment rigging
Packaged Trane high efficiency equipment
Emergency replacements
Piping

+1

Response time6 hrs
Response rate89%
107 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 Cedar Knolls, NJ and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"My home warranty contracted out the job to Phase II. Robert came to troubleshoot a 30+ year old AC unit and was very honest about everything he found faulty. He was instrumental in convincing the warranty company to replace the entire condenser unit rather than continue putting band-aid fixes to this ancient unit. Few weeks after he replaced the unit that cools the upstairs, the other unit that cools the downstairs fails as well (also over 30 years old). Since he was already familiar with everything, the second unit was replaced as soon as weather permitted. I didn't even have to be home the second time since the work was outside anyway. The promptness of his repairs can not be overstated. He helped get us back up and running as soon as the parts were available on the next clear day, which we couldn't be more appreciative since we have both a toddler and infant at home. Also, this was during a heatwave when most of the week was 90+. On top of this, my son's 1st birthday party was coming up and we needed the AC back asap. We can't recommend Rob and Phase II enough, a true professional"
Furnace Heaating Repair
Commercial Ice Machine
Commercial Ice Machine Service
Commercial Ice Machine Cleaning
Deli Case Repair

+12

Response time3 hrs
15 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 Cedar Knolls, NJ and surrounding areas

Approved

In business since 2000

Emergency services offered

Warranties offered

"I had an emergency situation in which the air condition unit was not working! My house was as hot as an oven! AAA HVAC was able to come out quickly about an hour after I called and fix the problem for minimal cost! I would definitely call them again! They are f friendly, professional, honest and very reliable! I recommend this company! Do not hesitate to call them! Thanks so much!"
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%
4 neighbors recently requested a quote
Avatar for MDL Electric LLC Cooling & Heating
MDL Electric LLC Cooling & Heating
4.6(
134
)
Central A/C - InstallCentral A/C - Service or Repair

Serving Cedar Knolls, NJ and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"My first and second floors were on one heating/cooling zone. The second floor was always cold. I wanted to modify the ducts in a minor way to get more air up there, but Gerson convinced me that adding a new zone with its own thermostat and separate ducts and dampers in the basement made more sense. I liked his reasoning, and, 2 days later, he and his guys showed up and did the work. They were extremely responsive, professional, and careful. The new system solved the problem. I did not take the usual steps of getting competitive bids because the reviews for MDL were so positive. Now I concur. I can't say whether the price I paid was competitive, but I paid it cheerfully."
Additional Photos
Additional Photos
Additional Photos
Response time1 day
8 neighbors recently requested a quote
Recommended by93%of homeowners
Dun Rite Heating and Cooling
4.5(
112
)
Central A/C - InstallCentral A/C - Install - For BusinessDuctless Mini-split A/C - Install or Replace

Serving Cedar Knolls, NJ and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all the work we perform. We look forward to earning your business.

3 neighbors recently requested a quote
Recommended by94%of homeowners
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FAQs for air conditioning projects in Cedar Knolls, 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 Cedar Knolls, NJ homeowners’ guide to air conditioning services

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