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Top-Rated Central a/c installers in Carnegie - Updated Nov 2026

Avatar for S & S Climate Systems, LLC
S & S Climate Systems, LLC
4.8(
93
)
Central A/C - Install

Serving Carnegie, PA and surrounding areas

Approved

In business since 2000

Free estimates

Credit card accepted

"Frank met with the estimate! I had no idea I would have the new furnace installation minutes after acceptance of his price. Nine hours dismantling old furnace and new one installed w/ central air. These guys are professional, kind and courteous! The price, quality and service exceeded my expectations. If you need a new furnace to replace the old one or new installation S &S Climate Systems are #1. I met with two other companies whose bid was larger, but S and S offered the same product saving me $1500-$2000, money I put toward upgrading my Electric panel and my sidewalk replacement!! And besides, I made new friends! Again, you owe it to yourselves to give your Heating and HVAC to S and S, because not only do they do good work, but their prices are within your budget range, there was no negotiating, in fact: I gave them a bonus. I was so pleased! Thank you S and S Climate Systems. These guys had everything stocked on their trucks, no time missed leaving the worksite to pickup items. They came prepared and delivered! Great job guys, you will go far! Keep doing what you do! Thank you for the Veterans discount! Semper Fidelis!"
Gallery
Response time6 hrs
Response rate95%
41 neighbors recently requested a quote
Mullen Heating and Air Conditioning
4.6(
205
)
Central A/C - Install

Serving Carnegie, PA and surrounding areas

Approved

In business since 1988

Emergency services offered

Warranties offered

"John installed dryer vent in our house. He is very professional and completed the project on time and Budget. He is very thorough and completed the Job to my satisfaction. He didnt charge me extra even though it took longer than originally planned."
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Response time2 days
Response rate100%
4 neighbors recently requested a quote
Avatar for Air Systems Mechanical Contracting, Inc.
Air Systems Mechanical Contracting, Inc.
4.6(
54
)
Central A/C - Install

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
Avatar for Sullivan Super Service Plumbing Heating & Cooling
Sullivan Super Service Plumbing Heating & Cooling
4.2(
1,236
)
Central A/C - Install

Serving Carnegie, PA and surrounding areas

Approved (Corporate)

In business since 1964

Emergency services offered

Warranties offered

"Matt came the day I called. He looked the situation over and gave me three choices with prices for each option. I decided and he went out to purchase a new toilet and he installed it; the total time he spent was less than an hour. THANK YOU!"
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+2

3 neighbors recently requested a quote
Recommended by78%of homeowners
Avatar for Woodruff  & Smith Heating and Cooling Inc
Woodruff & Smith Heating and Cooling Inc
4.9(
21
)
Central A/C - Install

Serving Carnegie, PA and surrounding areas

Approved

Super Service Award Winner

In business since 1990

Free estimates

Credit card accepted

Established in 1988, Woodruff and Smith Heating, Cooling, and Plumbing brings more than 35 years of combined experience to every project. From residential repairs and maintenance to light commercial installations, we do it all. In addition to HVAC services, we also offer professional plumbing solutions—covering everything from leak repairs and water heater installations to full plumbing system upgrades. Thanks to our commitment to exceptional customer service, we’ve grown into one of the most trusted companies in the region. From our home base in the south hills of Pittsburgh, we’ve expanded our service areas to include dozens of communities in the Pittsburgh area. Whether you need a new heater, expert AC repair, or reliable plumbing work, we are your total comfort solution.

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Bathroom Stack Rebuild
Bathroom Stack Rebuild
Water Heater
Water Heater

+1

Response time9 hrs
Response rate100%
4 neighbors recently requested a quote
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