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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon449
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Carnegie

Avatar for Wade Heating & Cooling Inc
Wade Heating & Cooling Inc
4.6(
153
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallElectric Furnace / Forced Air Heating System - Install+47 more

Serving Carnegie, PA and surrounding areas

Approved

In business since 1982

Free estimates

Emergency services offered

"From the very beginning, Lonnie in sales provided me with a first class presentation and quote. The installation was scheduled and Steve, Dalton and Bob were on time and the job was completed in a timely fashion. The work was performed in a professional manner and they took the time to answer any questions i had. I might recommend Wade Heating and Cooling for all your HVAC needs"
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Response time3 days
Response rate100%
12 neighbors recently requested a quote
Mullen Heating and Air Conditioning
4.6(
205
)
Central A/C - InstallCentral A/C - Service or RepairElectric Furnace / Forced Air Heating System - Install+47 more

Serving Carnegie, PA and surrounding areas

Approved

In business since 1988

Emergency services offered

Warranties offered

"We came home from an outing on a Sunday night and found our air conditioner not working. I found John Mullen on Angie's list and liked the reviews. I contacted John and he asked me about my schedule on Monday. He fit us in on Monday morning. I wasn't home but my wife was. She said that John was so nice that she assumed that he was a friend of mine. I told her that I never met him before. He fixed the air conditioner and I am relieved that it didn't cost us a ton and we avoided 85 degree heat with an air conditioner. I would use John again. He was dependable, came out with in 12 hours of being called, and my wife does not always comment on how nice someone is unless it is absolutely true. Thumbs up for John Mullen, I have just found a go to guy for everything!"
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Response time2 days
Response rate100%
12 neighbors recently requested a quote
Avatar for Air Systems Mechanical Contracting, Inc.
Air Systems Mechanical Contracting, Inc.
4.6(
54
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallBoiler or Radiator Heating System - Install or Replace+21 more

Serving Carnegie, PA and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"A great company, from the estimate to the install they were on time, informative and very professional. I really think I could not have found a better group of professionals to replace my current heat pump and air handler. Kudos to this company, I highly recommend you give them a shot at your HVAC needs. If their service is as punctual and professional as they have been for the install, I'm not sure you could find a better fit. Thank you Air Systems Mechanical and please say thank you to your team of guys for me who installed my system, they were outstanding! I found my go too for all my HVAC needs."
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 Bactronix Corp
Bactronix Corp
4.9(
489
)
Air Ducts & Vents - Clean

Serving Carnegie, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2011

Free estimates

Emergency services offered

"We hired Bactronix to clean the HVAC ducts in our house. Technicians Masson and Shawn arrived on time, did their work unobstrusively and efficiently, and answered all my questions politely and fully. They sent over before and after pictures of the ductwork by e-mail afterwards. Their work has made a positive difference to the air quality in the house, and we appreciate their services."
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+19

Response time1 day
8 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for ARS - Pittsburgh
ARS - Pittsburgh
4.5(
196
)
Central A/C - InstallCentral A/C - Service or RepairGas Furnace / Forced Air Heating System - Install+5 more

Serving Carnegie, PA and surrounding areas

Approved (Corporate)

In business since 1975

Emergency services offered

Warranties offered

"They installed our HVAC system two years ago and they service it every 6 months. We have the furnace checked in the winter and the air conditioner checked in the spring. They are very reliable and professional and they do a great job."
System Installation
320 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Sullivan Super Service Plumbing Heating & Cooling
Sullivan Super Service Plumbing Heating & Cooling
4.2(
1,236
)
Central A/C - InstallBoiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For Business+47 more

Serving Carnegie, PA and surrounding areas

Approved (Corporate)

In business since 1964

Emergency services offered

Warranties offered

"We were so happy to have Sullivan Super Service (Plumbing, Heating, Cooling) come today to repair our central air conditioning unit and to service our HVAC system. Sullivan's technician, Bob Anderson, was polite, professional and experienced. We greatly appreciated his knowledge and counsel. Our AC has been out for a few days in a current hot spell, and Sullivan was the only company that contacted us. They proved the old saying that in winning, half of the battle is just in showing up and being there. We were not Sullivan customers before, but we are now! Sullivan's service was SUPER!"
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+2

2 neighbors recently requested a quote
Recommended by78%of homeowners
Avatar for Wahl Family Heating, Cooling and Plumbing
Wahl Family Heating, Cooling and Plumbing
4.7(
14
)
Central A/C - InstallCentral A/C - Service or RepairGas Furnace / Forced Air Heating System - Install+40 more

Serving Carnegie, PA and surrounding areas

Approved

In business since 1980

Free estimates

Emergency services offered

"Over and above satisfaction!! Nick is an a very courteous and professional HVAC specialist! He called said he serve in 1 hr and he did. He introduced himself made feel I was in good hands!! I let him do his job without concern. In less than an hr he had photos of the issues with my furnace gave me a full explanation as to what was happening assured me there was no danger with the issues. Gave me a breakdown of the cost, ordered the parts and will return as soon as they are received. I’ve made a wise decision by going with Whal!! Thanks Nick!!"
Bathroom Remodel
Bathroom Remodel
Bathroom Remodel
HVAC Upgrade
HVAC Upgrade

+2

Response time9 hrs
Response rate100%
104 neighbors recently requested a quote
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Heating and Air Conditioning questions, answered by experts

A new HVAC system combines components to control indoor temperature and air quality. Features include a furnace or heat pump and an air conditioner or evaporator coil, depending on the climate requirements. It also involves a network of ductwork for air distribution, a thermostat for temperature regulation, and electrical connections. Air purifiers or humidifiers can be integrated to improve indoor air quality.

If your AC unit isn’t cooling and you haven’t figured out why, there are a few good reasons to turn it off ASAP. The source of the issue, whether that be leaking refrigerant or a broken compressor, will worsen and cause more damage to the overall unit the longer the machine is allowed to run. When in doubt, shut it down until you or an AC pro can ensure everything is working properly.

The standard rule for return duct sizing is that the return vent should be the same size or larger than the supply vent. This will ensure balanced airflow in your home and reduce strain on your HVAC system.

Most experts recommend getting three to five HVAC quotes from licensed, insured, reputable local heating and cooling companies. Getting multiple detailed HVAC quotes (but not too many) lets you compare the equipment, services, and prices of several contractors without being overwhelmed by options. It can also let you see if one contractor’s prices are much higher or lower than the others and give you a chance to ask for clarification. That way, you can weed out any contractors who aren’t providing quality services or materials and find the company that best meets your budget, quality requirements, and long-term goals.

The simplest indicator is how long it’s been since your last tune-up. You should schedule an annual AC tune-up each spring. Beyond that, there are multiple signs that your AC needs a quick check by a professional. These issues include higher-than-average energy bills, decreased air flow from vents, higher indoor temperatures, and an air conditioning unit that stays on all the time or frequently turns on and off.

The Carnegie, PA homeowners’ guide to heating and air conditioning services

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