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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 - InstallHeat Pump - Install or ReplaceOil Furnace / Forced Air Heating System - Repair+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
3 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(
21
)
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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Showing 1-10 of 192
Heating and Air Conditioning FAQs, answered by experts

Dirty filters are almost always the cause of poor airflow, so they should be regularly cleaned and then replaced as needed. The fan blades can also get dirty, so they should be cleaned when the unit is turned off. Make sure that the outdoor area around the back of the unit is unobstructed. Trees, shrubs, trash, and other objects could be too close to your unit.

No, it's not safe to keep using your unit when it's frozen. Not only can running a frozen unit lead to damage, but it can also potentially overheat, making it a fire hazard. Therefore, it's always best to turn off the AC unit as soon as you notice any ice.

One of the first signs of mold in an air conditioner is a musty smell. You're likely to notice the smell when the unit runs, from the air coming out of the vents or the unit itself. You may also be able to see mold growing on the unit, such as near the condenser coils or by the fan. In some cases, there may be visible mold by the vents.

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.

Running an air conditioner with mold is not safe because it can spread harmful mold spores throughout your home. Exposure to these spores can trigger various health problems, including respiratory issues, allergies, coughing, wheezing, sneezing, itchy eyes, and a sore throat. It may also aggravate asthma in household members. Continued exposure can increase the risk of more serious illnesses like sinus infections, pneumonia, and bronchitis. If you suspect mold in your air conditioner, you should stop using the system until it has been properly cleaned to avoid health risks and further contamination.

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.