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Find Air conditioning pros in Hauppauge

Avatar for MSD Heating & Cooling
MSD Heating & Cooling
4.9(
74
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Hauppauge, NY and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"I was very happy with my experience using this company. In the middle of a heat wave, right before the July 4th holiday, my AC stopped working. The man who installed it and had been servicing it was too busy to come for a week. I called MSD and was given an appointment for 8 AM the next morning. They were prompt and courteous, fixed my problem, and were reasonably priced. I will be calling them in the future."
Additional Photos
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+1

3 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for MassAir
MassAir
4.9(
64
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceCentral A/C - Service or Repair+1 more

Serving Hauppauge, NY and surrounding areas

Approved

In business since 2007

Free estimates

Warranties offered

"Provided a fair price for a new Rheem air conditioner condenser and air handler. Price was very competitive. Pleased with the work done. Had several productive conversations with the owner regarding the best fit for our needs and budget (1-stage versus 2-stage; SEER2 rating). Pleased with what we wound up deciding on."
Furnace
Ductless mini-split
Air Handler
Condenser
Condenser

+9

Response time3 hrs
12 neighbors recently requested a quote
Recommended by96%of homeowners
Just Rite Heating and Cooling
4.9(
132
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceCentral A/C - Service or Repair+1 more

Serving Hauppauge, NY and surrounding areas

Approved

In business since 1995

Free estimates

Credit card accepted

"Eric and the guys did a great job, as stated by many they are very clean and professional. The job my Central Air Conditioning system install ended up being a little more than expected but he stuck to the price quoted went the extra effort and did a great job..... Summer come on!"
Response time5 hrs
4 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Comfort Ductwork Systems, Inc.
Comfort Ductwork Systems, Inc.
4.9(
73
)
Central A/C - InstallDuctless Mini-split A/C - Install or Replace

Serving Hauppauge, NY and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Just can't say enough good things about this company. I signed a contract they came on time. They installed new residential carrier air conditioning unit. Did a complete clean up when they were done. Everything is working just fine. I would recommend this company if you're considering putting in home air conditioning system."
Condensing Boiler & Indirect Hot Water Heater
Central HVAC
Oil Fired Boiler & Indirect Hot Water Heater
New Install
Thermostat Control

+2

Response time11 hrs
Response rate86%
15 neighbors recently requested a quote
New York HVAC Corporation
4.3(
60
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+2 more

Serving Hauppauge, NY and surrounding areas

Approved

In business since 2012

Free estimates

Customers say: Quality work

"Vinny and Dillon, are very dependable, and knowledgeable . Got the ductless air conditioning Came to give us an estimate, very thorough in explaining the process ,the installation, everything, I was very impressed, Worked with my schedule to get the job started ,it took 2 days, I was very happy they arrived early, worked all day got it all done and very clean. Very professional and answered all my questions and concerns.. I'm telling everyone I know about NYHVAC CORP..the best part was the time they spent explaining,teaching me about the duckless air conditioning and after the job was done Vinny answered all my questions,and showed me the complete job he did.. very satisfied.."
 HVAC
 HVAC
 HVAC
 HVAC
 HVAC

+54

Response time1 day
2 neighbors recently requested a quote
Recommended by91%of homeowners
JDGC General Contracting Corporation
4.7(
651
)
Window A/C Unit - Service or RelocateWindow A/C Unit - InstallWindow A/C Unit - Install - For Business+1 more

Serving Hauppauge, NY and surrounding areas

Approved

In business since 1991

Free estimates

Customers say: Quality work

"Air conditioner died during a heat wave. John came out the same day to assess the problem. Had to take it for repair, and brought it back sooner than promised. Very happy with service."
Response time12 hrs
9 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for All Weather Heating & Cooling
All Weather Heating & Cooling
4.6(
68
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+12 more

Serving Hauppauge, NY and surrounding areas

Approved

In business since 1969

Free estimates

Emergency services offered

"I had the equipment replaced, a brand new, super high efficiency, fancy, lovely stuff. It's a central air system, and it's Lennox equipment. It's high efficiency. You can get it for less than that, but you're not gonna get the high efficiency quiet and all that kind of stuff. I had received other quotes which were like more money for the same system. I have been using them since 1986. No complaints. They do their thing, and I can't fault them. I have a service contract with them for this."
Additional Photos
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+13

Response time3 days
7 neighbors recently requested a quote
Recommended by94%of homeowners
Chortani Services HVAC
4.6(
193
)
Central A/C - Service or RepairCentral Air Cleaner - Install or Replace

Serving Hauppauge, NY and surrounding areas

Approved

In business since 1992

Offers commercial services

Customers say: Quick response

"-came on time - curteous service Answer all question Discussed proble with ac system Duscussed reasonal replacement Curtesy check other ac unit for tune up Through in doing job Checked amp usage of ac Checked wire securely Remove old unit Clean up after job done No argument as reasonable offer Overall satisfied service Would recommand to use again for air condition service"
Response time4 hrs
Response rate100%
Recommended by97%of homeowners
Avatar for Cool Pro Mechanical, LLC
Cool Pro Mechanical, LLC
4.5(
19
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral Humidifier - Install or Replace+1 more

Serving Hauppauge, NY and surrounding areas

Approved

In business since 1977

Free estimates

Emergency services offered

"I want to thank Eric, the installation team and the office staff over at Cool Pro Mechanical. They did an amazing job from start to finish. Eric was very knowledgeable and was very helpful in finding the right AC/Heating system for our home. Eric answered all our questions and concerns and the office staff was very prompt in getting quotes and installation set up. The work was done professionally, on time and exactly when discussed. The value for the unit, installation and customer service is exceptional. I would highly recommend this company."
RHEEM 5 TON RTU
RHEEM 5 TON RTU
16 SEER CAC WITH HOT WATER COIL
RESIDENTIAL INSTALLATION
16 SEER CAC WITH HOT WATER COIL

+1

Response time1 day
Recommended by88%of homeowners
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FAQs for air conditioning projects in Hauppauge, NY

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 Hauppauge, NY homeowners’ guide to air conditioning services

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