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Best heating and air conditioning pros near Donora, PA

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TRUSTED BY DONORA, PA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon132
    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in Donora - Updated Nov 2026

Avatar for Hammer Heating & Air Conditioning
Hammer Heating & Air Conditioning
5.0(
28
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallHeat Pump - Install or Replace+34 more

Serving Donora, PA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Hammer HVAC was truly concerned about our heating issue. They arrived the same day as I contacted Angi Home Advisor. Hammer HVAC diagnosed the issue and returned the next day with parts to complete the repair. Excellent customer service & extremely knowledgeable."
Response time5 hrs
4 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Bactronix Corp
Bactronix Corp
4.9(
507
)
Air Ducts & Vents - Clean

Serving Donora, 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
6 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Kenders Heating and Air Conditioning LLC
Kenders Heating and Air Conditioning LLC
5.0(
20
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallHeat Pump - Install or Replace+11 more

Serving Donora, 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
7 neighbors recently requested a quote
Avatar for Ace Handyman Services South Pittsburgh
Ace Handyman Services South Pittsburgh
4.5(
357
)
Thermostat - Install or ReplaceThermostat - Repair or Reprogram

Serving Donora, PA and surrounding areas

Approved

In business since 2004

Warranties offered

Credit card accepted

"

They are very good. If you have a problem, they will address that problem. they give you good service. If they don't they will come back and satisfy whatever is needed to be taken care of. They do good quality work. The price was okay.

"
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+52

Response time1 day
Response rate100%
1 neighbors recently requested a quote
Avatar for Low Cost Heating & Air
Low Cost Heating & Air
5.0(
2
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - Repair

Serving Donora, PA and surrounding areas

Approved

In business since 1994

Emergency services offered

Warranties offered

"Our air conditioner broke on labor day week-end. Called contractor late Sunday afternoon and got his answering service.  Contractor called back within the hour and set an appointment for the following morning.  Contractor called 1/2 hour before showing up on Labor Day.  He quickly diagnosed the problem and replaced the capacitor.  This capacitor has gone bad in the past and other contractors have charged $175 - $200 to replace this part during normal working  hours. I was charged the $40 advertised service call price and $75 for the repair part. In addition to repairing the unit he cleaned it. Very professional and courteous, I would highly recommend using this company. 
Most of my dealings with HVAC contractors over the past 30 years have been mostly less than pleasant, this was quite a surprise to find an honest, hard working contractor."
Brentwood Boiler
Boiler Install
Unit Heater
AC Install
Mini Split

+23

Recommended by100%of homeowners
Mr. Universal
4.7(
13
)
Central A/C - Service or RepairThermostat - Repair or ReprogramGas Furnace / Forced Air Heating System - Repair - For Business

Serving Donora, PA and surrounding areas

Approved

In business since 2025

Free estimates

Small jobs welcome

"Along with installing new bedroom and closet doors, the contractor also installed vinyl plank flooring in our living room, dining room, and bedrooms. He also hung our dining room chandelier, and installed moon lights above our fireplace. His attention to detail in his work was impeccable and he completes the job in a timely manner. I would recommend his services to anyone looking to have work done on their home."
97 neighbors recently requested a quote
Avatar for H&S Projects, LLC
H&S Projects, LLC
5.0(
11
)
Thermostat - Install or ReplaceThermostat - Repair or Reprogram

Serving Donora, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Credit card accepted

Customers say: True professional

"H&S Projects was a pleasure to work with. When we called, we spoke to Jeremiah. Jeremiah was very knowledgeable about the project we needed and was able to give us a quote in a day. His communication and work was top notch!!! I would highly recommend H&S Projects for any work you need done. We look forward to using H&S Projects for future projects."
4 neighbors recently requested a quote
Recommended by36%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

There are a few reasons your AC is running but not cooling your room. Thermostat issues and dust and debris, which can clog your system, are common problems. It could also be a broken component, such as a compressor, blower fan, or evaporator coils. You’ll need to call a pro to diagnose the issue.

Yes, ventless portable air conditioners exist, and not all standard portable air conditioners must be vented through a window.

Ventless portable units, often called evaporative coolers, do not have exhaust hoses. They use a water reservoir and a cooling pad to add moisture to the air, making it feel cooler. These units work best in dry climates because humid areas cannot absorb much additional moisture.

For standard portable air conditioners that do require venting, a window is not the only option; they can also be vented through a door, wall, or ceiling. However, it is essential to vent these units properly. Running a standard portable AC without venting it is counterproductive because it needs to expel heat to cool the room. Failing to do so will only increase the room's temperature.

If there’s a freon leak in your home’s AC unit, it will cause the system to work overtime to cool the house. That issue will result in higher energy bills and it will take much longer for cool air to disperse throughout the home. If your system has a freon leak during the summer, it can make hot days miserable. That’s why it’s important to hire an HVAC professional to resolve a freon leak as quickly as possible.

Vents may blow air even though the air conditioning system is off because of the pressure difference between indoor and outdoor air or drafts from leaky ducts. Check for leaks or drafts in the ductwork or around windows and doors.

To keep your air conditioner in good working condition, you should have it serviced by a professional at least once per year, ideally in the spring before the cooling season begins. If your AC unit is 10 years or older, consider servicing it twice a year (once in the spring and once in the fall) to catch potential problems early and help it reach its full lifespan. During a service visit, a technician will inspect, clean, and replace parts as needed. Regular maintenance helps avoid costly repairs. As a DIY task, you can also clean the evaporator coils annually.

The Donora, 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.