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Best air conditioning pros near Carnegie, PA

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

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

Serving Carnegie, PA and surrounding areas

Approved

In business since 1988

Emergency services offered

Warranties offered

"Luckily, John was already in the neighborhood when I contacted him. He showed up on time, diagnosed the problem quickly, and had my AC unit back in service very quickly. Will definitely be hanging on to John's number for any future work I need done!"
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Response time2 days
Response rate100%
3 neighbors recently requested a quote
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
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!"
4 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Kenders Heating and Air Conditioning LLC
Kenders Heating and Air Conditioning LLC
5.0(
21
)
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

"Highly recommend Kenders HVAC! Both our furnace and air conditioner broke down at the same time, which was a huge stress, but the team at Kenders handled everything flawlessly. They showed up right on time, gave us a very reasonably priced quote, and managed the entire process from beginning to end in less than a week. Their team was professional, efficient, and left everything spotless. If you want honest, high-quality, and fast service, look no further than Kenders!""
Indoor unit
Heat pump
Elite Condenser
2- stage furnace
Response time11 hrs
8 neighbors recently requested a quote
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
Avatar for Custom Air Pros LLC
Custom Air Pros LLC
5.0(
7
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Carnegie, PA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"Highly recommend Custom Air Pros! During a heat wave, the AC on my taco truck stopped blowing cold air, and I needed help fast. They were able to come out first thing, found that my refrigerant was low, located and repaired the leak, and added R-410A refrigerant. Before I knew it, my AC was back up and running and blowing ice-cold air again. They were quick, professional, knowledgeable, and really came through when I needed them most. I?ll definitely be using Custom Air Pros again!"
AC Replacement
AC Replacement
AC Replacement
AC Replacement
AC Replacement

+6

16 neighbors recently requested a quote
Avatar for S & S Climate Systems, LLC
S & S Climate Systems, LLC
4.8(
94
)
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%
45 neighbors recently requested a quote
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Air Conditioning FAQs, answered by experts

After a while, dust, dirt, and other debris accumulates on an AC unit's coils and filters, making it less efficient and spreading allergens and other air pollutants throughout your home. Cleaning your AC unit will keep it running efficiently, minimizing future breakdowns and improving your indoor air quality.

While you’ll pay more upfront for a brand-new HVAC unit, you can save money in the long run. Here’s how to save on your new HVAC system:

  • When purchasing a high-efficiency system, your energy bills will be lower in the future.

  • You may be eligible for special offers from your local energy company.

  • Depending on the system, you may be eligible for HVAC rebates and tax credits.

  • Choose to replace your air conditioning unit and furnace simultaneously to save on labor and installation costs. 

A calculation method that your HVAC contractor will use to ensure your system does what it's supposed to is measuring duct output, or its CFM. The calculation requires knowing the cross-sectional area of the ductwork and determining the air speed past any given point within it.

Signs that your A/C system needs professional service include increased energy bills, uneven or poor cooling, loud or unusual noises, and frequent cycling.

Replacing both an AC and a furnace takes a full day on average, ranging from eight to 12 hours. The process involves removing the old units, installing the new ones, and ensuring all connections are properly made. If both systems are being replaced simultaneously, it can take longer than installing a furnace alone, so plan accordingly.

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.