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Verified Reviews for Air Conditioning pros in Carnegie, PA

*The Angi rating for Air Conditioning companies in Carnegie, PA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Air Conditioning needs.

*The HomeAdvisor rating for Air Conditioning companies in Carnegie, PA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Air Conditioning needs.

Last update on March 19, 2026

Find Air conditioning pros in Carnegie

Mullen Heating and Air Conditioning
4.6(
205
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Install - For Business+3 more

Serving Carnegie, PA and surrounding areas

Approved

In business since 1988

Emergency services offered

Warranties offered

"John stopped one day to quote us a price, we arranged for the work and a few days later our new furnace and AC units were installed. John's helper arrived promptly, removed our old furnace and AC unit and installed the new one along with a new air cleaner, new thermostat and all new piping. The job was competed professionally and in one day. And everything was cleaned up before he left. We did have one small issue with a leaky condensate drain pipe which was quickly remedied the same day we discovered it. I would recommend John Mullen Home Repair to anyone. The best part is that he is a local business and we were really pleased with to deal with someone local."
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Response time2 days
Response rate100%
11 neighbors recently requested a quote
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Avatar for ARS - Pittsburgh
ARS - Pittsburgh
4.5(
197
)
Central A/C - InstallCentral A/C - Service or Repair

Serving Carnegie, PA and surrounding areas

Approved (Corporate)

In business since 1975

Emergency services offered

Warranties offered

"I would highly recommend ARS - Pittsburgh to everyone who is in need of HVAC work!! From the moment I reached out to them to install was 2 business days, and then a couple days for a follow-up visit due to additional work needed which was unforeseen prior to my new boiler installation. Each and every employee (Bob, Chris, Jay and Tomas) were phenomenal. We will definitely be using ARS - Pittsburgh in the future for when we are ready to move forward with our ductless air conditioning needs."
System Installation
293 neighbors recently requested a quote
Recommended by80%of homeowners
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Avatar for Air Systems Mechanical Contracting, Inc.
Air Systems Mechanical Contracting, Inc.
4.6(
54
)
Central A/C - InstallCentral A/C - Install - For BusinessDuctless Mini-split A/C - Install or Replace

Serving Carnegie, PA and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"I have had air systems mechanical install my high efficiency furnace few years ago and recently install my central air. Their prices are lower than the rest. They are always courteous and professional from salesman to office staff. I have nothing negative to say. Always on time for routine furnace tune up appointments. A great company to deal with."
Williamson Upflow Oil Furnace
18 SEER American Standard A/C
American Standard TAM4 Air Handler
Rheem Tankless Water Heater
Williamson Condensing Boiler Installation

+12

Response time11 hrs
Response rate86%
5 neighbors recently requested a quote
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Sullivan Heating, LLC
4.5(
123
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Carnegie, PA and surrounding areas

Approved

In business since 1984

Emergency services offered

Warranties offered

"Wow! We laughed about how my new furnace moved me into the 21st century. And I added central air...all for a reasonable amount. The contractor explained the pros and cons of what was available and we came upon a great heating & cooling system. I felt bad they had to work so hard to remove the old furnace but they were professional throughout. I absolutely love my lower utility bills!"
3 neighbors recently requested a quote
Recommended by93%of homeowners
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Avatar for Sullivan Super Service Plumbing Heating & Cooling
Sullivan Super Service Plumbing Heating & Cooling
4.2(
1,236
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Carnegie, PA and surrounding areas

Approved (Corporate)

In business since 1964

Emergency services offered

Warranties offered

"I pay them a monthly fee for a maintenance plan and they come out and service my unit whenever I have an issue. The pump on the air conditioning unit was making a vibrating sound and they came and checked everything. They also flushed the unit and now everything is working fine."
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+2

3 neighbors recently requested a quote
Recommended by78%of homeowners
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Avatar for Kenders Heating and Air Conditioning LLC
Kenders Heating and Air Conditioning LLC
5.0(
20
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Carnegie, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Emergency services offered

Warranties offered

Kenders Heating & Air Conditioning is a family-owned local business providing installation, repair, and 24/7 emergency services for residential and commercial heating and cooling. Based in Pittsburgh, Pennsylvania, they specialize in air conditioning, furnaces, boilers, and indoor air quality.\n

Indoor unit
Heat pump
Elite Condenser
2- stage furnace
Response time11 hrs
10 neighbors recently requested a quote
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Avatar for L.Cipriani Heating & Cooling
L.Cipriani Heating & Cooling
5.0(
25
)
Central A/C - InstallCentral A/C - Install - For Business

Serving Carnegie, PA and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"Installed new AC unit. . Professional and prompt service."
Response time2 hrs
3 neighbors recently requested a quote
Recommended by95%of homeowners
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Avatar for Bactronix Corp
Bactronix Corp
4.9(
498
)
Air Ducts & Vents - Clean

Serving Carnegie, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2011

Free estimates

Emergency services offered

"From the beginning talking with Chris to the end the process was amazing. Carlos Frank and Brenden arrived on time, removed and cleaned the all the registers, and of course the air ducts. A problem arose that was not caused by them, but the AC had an issue and they stayed as long as it took to resolve it. Paul was a huge help during this and even followed up in the evening. Phone calls were returned promptly, questions answered without hesitation and problems resolved! I haven't seen this from any company in ages."
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+19

Response time1 day
7 neighbors recently requested a quote
Recommended by81%of homeowners
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Avatar for S & S Climate Systems, LLC
S & S Climate Systems, LLC
4.8(
91
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Install - For Business+2 more

Serving Carnegie, PA and surrounding areas

Approved

In business since 2000

Free estimates

Credit card accepted

"No fast sales pitches, no pressure. Very informative about what I needed, without trying to upgrade to something more expensive. They were courteous, professional, clean installation, and on time. Explained everything that I needed to know about the AC. Would definitely recommend this company for their integrity, quality of work , and helpfulness. Call them !"
Gallery
Response time6 hrs
Response rate95%
17 neighbors recently requested a quote
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Above All Carpet and AirDuct Cleaning
4.6(
176
)
Air Ducts & Vents - Clean

Serving Carnegie, PA and surrounding areas

Approved

In business since 2017

Credit card accepted

Offers commercial services

"Joe and his team were knowledgeable, professional and friendly. They made the process simple and easy for me to understand what I was paying for and what services they offered. I would 100% highly recommend them for anyone in need of air duct cleaning as well as the other services they provide."
Response time6 hrs
Response rate93%
6 neighbors recently requested a quote
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Air Conditioning questions, answered by experts

You should know the main components of an air conditioner: the condenser coils, evaporator coils, drip pan, AC filter, ducts, and refrigerant. Each part plays a key role in the performance and safety of your AC system. When tracking the source of AC issues or odors, it helps to know where to look. Your outdoor unit houses your condenser coils, fan, and compressor. Your indoor unit houses your evaporator coils, drain lines, and filter, and it connects to your ductwork. 

AC leaks are common, and an HVAC pro can usually fix them. You may be able to resolve some leaks on your own, but a professional HVAC technician should handle most AC leak repair. If left ignored, an AC leak could cause serious damage to your system or leave you with expensive water damage, usually leading to more costly repairs or replacements.

Window AC units use a fair amount of electricity, but significantly less than central AC systems. Because they are more energy-efficient for cooling individual rooms or small spaces, their usage is comparatively low. On average, a window AC unit consumes between 500 and 1,400 watts, while a central AC system uses over 3,500 watts—meaning a window unit uses about one-third of the energy. This typically translates to a monthly running cost of $15 to $40, although this can vary depending on external factors.

Condensation forms when warmer, outside air combines with cooler air in your ductwork. This can happen when there are leaks in your air ducts, your HVAC system has a dirty air filter, or there’s a lack of insulation around the ducts. To prevent it from happening, replace your HVAC filters as directed. Also, once every five years, hire a local air duct cleaner to clean and inspect them.

At a minimum, an HVAC system should be serviced once per year. However, a twice-a-year service schedule—once in the spring for the cooling system and once in the fall for the heating system—is often recommended, especially for older systems, heat pumps, or in climates with extreme temperatures. Regular service, which includes inspection, cleaning, and maintenance, ensures the system runs efficiently, helps prevent costly breakdowns during peak seasons, and can extend the unit's lifespan. You can also schedule a service if you notice issues like poor performance or strange noises.

The Carnegie, PA 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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