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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon817
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Mars

Avatar for Home Mechanix
Home Mechanix
5.0(
61
)
Central A/C - Service or RepairThermostat - Repair or Reprogram

Serving Mars, PA and surrounding areas

Approved

In business since 2017

Free estimates

Warranties offered

"They were very responsive and reached out immediately to schedule an appointment that worked for my schedule. Arrived on time and cleaned, serviced, changed filters and showed me how to maintain our system during the year. I will call them again when we need HVAC service or repair."
New Furnace
New condenser unit
Boiler
Boiler
Response time6 hrs
5 neighbors recently requested a quote
Recommended by89%of homeowners
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 Mars, PA and surrounding areas

Approved

In business since 1988

Emergency services offered

Warranties offered

"My air conditioner stopped producing cold air Saturday evening, but I noticed so late that I had to wait until Sunday to try to get it fixed. I called the company I typically use for my HVAC and was told it would be $230 for them to even come to my house because it was a weekend. I completely understand a weekend being overtime, but I didn?t want to pay the additional fee so I told them I could wait until Monday to have it fixed. A technician was supposed to call me back to schedule a time for them to come on Monday, but they did not end up returning my call on Sunday. While I waited for the other company to call me back, I looked at Angie?s List to see if there were any highly-ranked companies I could use instead. John Mullen Home Repair was one of the companies I had planned to call Monday, but I noticed the hours said they were still open so I called at 6:00 PM on Sunday, fully expecting to schedule them to come Monday. John answered and said that he was on another job that he expected that to wrap up shortly and that he had another stop to make after that, but he thought he could get to my house around 7:00 PM. At this point it was about 85 degrees in my house with all the windows open, so I agreed to have him come out even if it meant an additional weekend charge. Around 6:45 PM I received a call from an employee of John?s saying he would be at my house in about 15 minutes. In talking to John, it seemed like he was going to be the one who came to my house, but I?m assuming he ended up sending someone else because he would have gotten to my house later than his estimated 7:00 PM. Having had to wait many hours for various service people to show up for their appointments, I was very impressed and pleased that they cared so much about meeting the appointment time. He showed up right around 7:00 PM and almost immediately diagnosed the issue as a blown capacitor. My air conditioner is fairly old and has actually blown a capacitor before, but the previous time it broke I used my typical HVAC company who charged me $250 for the capacitor on top of the labor and additional weekend charge (because of course it broke at the beginning of a 4-day holiday weekend where every day was in the 90s). The guy from John Mullen charged us $100 total for the capacitor and the labor. I was very pleased with that as well, so I mentioned that I?m probably going to replace my AC unit sometime in the next year and would be interested in using John Mullen. He said he noticed that the unit was older and that we could probably just run it until it dies, but explained a few of the newer units they have and the pricing for those. He wasn?t pushy at all and didn?t try to sell me on anything immediately, which I appreciated. To summarize, it took John Mullen Home Repair about 1.5 hours from the time I called them to the time they left my house after fixing my air conditioner, all for $100. I am very happy and would definitely recommend using them."
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Response time2 days
Response rate100%
11 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 Mars, PA and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"The greatest company to have do your furnace. I would diffidently recommend them to other people. The price was very reasonable and the professionalism was without a doubt the best . There were no surprises when it came time for the final payment What ever they quoted that what you paid."
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%
4 neighbors recently requested a quote
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 Mars, 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
266 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
)
Gas Furnace / Forced Air Heating System - InstallCentral A/C - InstallBoiler or Radiator Heating System - Install or Replace+47 more

Serving Mars, 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

3 neighbors recently requested a quote
Recommended by78%of homeowners
Avatar for Bactronix Corp
Bactronix Corp
4.9(
496
)
Air Ducts & Vents - Clean

Serving Mars, 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
7 neighbors recently requested a quote
Recommended by81%of homeowners
Avatar for North Pittsburgh Heating & Cooling
North Pittsburgh Heating & Cooling
4.7(
251
)
Central A/C - Service or RepairCentral A/C - InstallGas Furnace / Forced Air Heating System - Repair+13 more

Serving Mars, PA and surrounding areas

Approved

Super Service Award Winner

In business since 1986

Free estimates

Emergency services offered

"i was extremely pleased with the young man from north Pittsburgh last year I was told by a large hvac company that we would need to replace the entire AC system soon- they were quick to give an estimate with the heat at all time high levels our AC quit so we were expecting the worse he quickly diagnosed a bad capacitor and my bill was under $200 the integrity/honesty shown here can not be replaced. I would highly recommend these people to anyone. We were blessed to have a great experience! thank you again!"
New apartment boilers
Apartment water heater installs
Attic A/C system
Boiler Install
Furnace install

+1

Response time6 hrs
8 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Kenders Heating and Air Conditioning LLC
Kenders Heating and Air Conditioning LLC
5.0(
19
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+11 more

Serving Mars, 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
7 neighbors recently requested a quote
Avatar for Aire Serv of Sewickley
Aire Serv of Sewickley
4.8(
22
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallDuctless Mini-split A/C - Install or Replace+3 more

Serving Mars, PA and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

At Aire Serv® of Sewickley, PA, heating and air conditioning services are our specialty. Our friendly and knowledgeable service professionals are happy to answer any questions you may have and recommend the best service options for you.\n\nAire Serv ® is your trusted partner for reliable commercial HVAC services that keep your business operating comfortably and efficiently. From routine maintenance to urgent repairs, our experienced professionals deliver cost-effective solutions tailored to your space and schedule—minimizing downtime so you can stay focused on running your business.\n\n

Gallery
31 neighbors recently requested a quote
Recommended by100%of homeowners
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Heating and Air Conditioning questions, answered by experts

If your whole house is cold that’s one thing, but what if you only have a few rooms that are cold? First, you need to determine why this may be happening. A good place to start is to investigate the potential causes listed in this article—heat transfer, airflow, thermostat problems, humidity, and insulation. Once you’ve narrowed down the issue, you’d apply the same principles to the cold rooms as you would to the entire home.

ACs don't run on water. They're not connected to drain pipes or any part of your plumbing system. However, they need refrigerant to run. Refrigerant is a gas or liquid that has a low boiling point and absorbs the heat in your home. ACs need this in order to be functional and cool your home. If you suspect your AC is low on refrigerant, you need to contact a licensed HVAC professional. Refrigerant is a dangerous chemical that requires specialized training and permits to work with. 

NATE (North American Technician Excellence) certification is not legally required for HVAC technicians in most areas, but hiring a professional with this certification is highly recommended. NATE-certified technicians demonstrated their expertise and proficiency in different types of HVAC systems, offering assurance of quality service. It's a voluntary certification, yet it indicates a commitment to professionalism and ongoing training. Choosing a NATE-certified technician often means you're working with someone who is up-to-date on industry standards and best practices, which can lead to better service, energy efficiency, and long-term cost savings.

While your AC unit may still run even if its capacitor is going bad, doing so takes a lot more energy, so it can drive up your electric bill and cause further damage to your AC unit’s parts. If you suspect a bad capacitor, it’s important to have a professional diagnose and fix the problem before you continue to run your AC.

If you have central air conditioning, it’s fine to run your AC all day if that’s what you want—as long as the AC unit is in good condition. But if your AC runs constantly when you don’t want it to, there may be a problem with your system (like the ones we’ve mentioned above). Window AC units and wall air conditioners aren’t as powerful as central AC, so you should only run those kinds of air conditioners for eight to 12 hours at a time.

The Mars, 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.