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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 Harmony, 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%
6 neighbors recently requested a quote
Avatar for ARS - Pittsburgh
ARS - Pittsburgh
4.5(
197
)
Central A/C - InstallCentral A/C - Service or Repair

Serving Harmony, PA and surrounding areas

Approved (Corporate)

In business since 1975

Emergency services offered

Warranties offered

"Answered in a timely fashion to schedule and provide a quote. They were able to even install the following day. Everyone was friendly, they did a fantastic job with installation of a new AC and furnace."
System Installation
291 neighbors recently requested a quote
Recommended by80%of homeowners
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 Harmony, 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 Aire Serv of Sewickley
Aire Serv of Sewickley
4.8(
22
)
Central A/C - InstallDuctless Mini-split A/C - Install or Replace

Serving Harmony, 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
63 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Aire Serv of Sewickley
Aire Serv of Sewickley
4.8(
22
)
Air Ducts & Vents - CleanCentral A/C - Service or Repair

Serving Harmony, PA and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

In the middle of July, when the thermometer is pushing past 100 degrees Fahrenheit, air conditioning isn't a luxury that's nice to have in Pittsburgh—it's an absolute necessity that you don't want to live without. It's obviously a disaster when your air conditioner grinds to a halt on the hottest day of the year. But it's also incredibly frustrating to deal with an AC unit that only "kind of" works and is struggling to get your house down to the temperature on your thermostat or control humidity levels. When you notice those types of annoying issues, it's necessary to get professional Pittsburgh air conditioner repair services before the problem worsens and you're left sweltering in an overheated house.

Gallery
34 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Bactronix Corp
Bactronix Corp
4.9(
500
)
Air Ducts & Vents - Clean

Serving Harmony, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2011

Free estimates

Emergency services offered

"I had the crew of Glenn, Brenden &Josiah to clean my air ducts. They were very clean and efficient. They explained everything and pointed out mistakes in the construction of my ducts with cold air returns. They also left information for UV purifier for my son’s allergies to review. I liked the fact that the work was hospital grade."
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+19

Response time1 day
7 neighbors recently requested a quote
Recommended by81%of homeowners
Avatar for MRT Contracting LLC
MRT Contracting LLC
5.0(
9
)
Central A/C - Install - For Business

Serving Harmony, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Emergency services offered

"I COULDN'T AFFORD TO BUY A NEW FURNACE. I'AM A DISABILED VETERAN. LIVING ON A FIXED INCOME. MY FURNACE WENT OUT . I GOT ON LINE TO GET SOME ESTIMITS. THE CHEAPEST I COULD FIND WAS 6000.00JOHN TO OWNER OF MRT HVAC CONTRATORS.CALLED ME.I TOLD HIM MY PROBLEM. IT'S ABOUT TO GET COLD AND WE HAVE NO HEAT.JOHN SAID DON'T WORRIE I WILL HELP YOU OUT .JOHN GOT WITH DON [Provider Name Removed] A FREIND OF HIS. AND THEY DONATED US A BRAND NEW FURANCE OUT THE BOX.TO ME AND MY WIFE.PLUS INSTALLED IT FOR FREE.THERE ARE SOME GOOD PEOPLE IN THE WORLD AND JOHN LUGAILA& DON [Provider Name Removed] ARE THOSE GOOD HEARTED PEOPLE. GOD BLESS THEM. AND ME THE WIFE AND DOG THANK THEM WITH ALL OF OUR HEARTS"
Furnace Replacement
AC Replacement
AC Replacement
AC Replacement
AC Replacement

+9

Response time1 day
Response rate98%
8 neighbors recently requested a quote
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Air Conditioning questions, answered by experts

If you’re trying to buy a new AC unit, there are a few crucial factors to consider. Look at the cooling capacity, the available warranty, the energy efficiency, and the type of unit. A ductless unit will cost more up front but may be a more viable option if you don’t already have ductwork. Additionally, a unit with better energy efficiency will cost less to run overall, saving you money on your monthly energy bill. 

Here’s how AC professionals will clean your AC coils:

  1. Unplug the AC unit or turn off the breaker to the unit in your circuit breaker box.

  2. Remove the faceplate.

  3. Spray a vacuum hose attachment or compressed air can to remove debris, dust, dirt, and grime.

  4. Use a soft-bristled fin comb to remove stubborn caked-on debris.

  5. Use the vacuum hose to suck up any extra debris.

  6. Take a coil-safe cleaning solution and spray it onto the coils. Try to choose a no-rinse solution.

  7. Let the solution sit for at least 15 minutes.

  8. Gently wipe away loosened grime and debris with a microfiber cloth.

  9. Reattach the faceplate, plug in your AC system, or turn the breaker back on.

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

Yes, it’s important to turn off your AC sometimes to give it a break and prevent it from freezing up. If your AC runs all the time, your system’s parts will wear down quicker, which may mean that you need to replace it sooner. Plus, using your AC constantly uses more electricity and leads to higher energy bills.

No. HVAC, which stands for heating, ventilation, and air conditioning, includes all of the systems that work together to regulate a building’s temperature and humidity levels. In comparison, air conditioners only provide cooling. You can have an air conditioner as part of your HVAC system, but not all HVAC systems include air conditioners.

The Harmony, PA homeowners’ guide to air conditioning services

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