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TRUSTED BY CORNWALL, PA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon128
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Cornwall

Avatar for H L Bowman
H L Bowman
4.7(
406
)

Serving Cornwall, PA and surrounding areas

Approved (Corporate)

In business since 1946

Free estimates

Emergency services offered

"The appointment was made within 2 days of contacting them. The technician (Brian) was punctual for a 7:30 am appointment. Once there, Brian did a fantastic job of communicating the services that he was performing and kept me very informed about the status of the AC system. He found some issues that had been previously overlooked by former HVAC technicians and provided me with a very detailed understanding of what the outlook for my unit should be in the future. I noticed an immediate improvement in the cooling of the house as well as the air quality. I can't thank this company and this technician enough for being so professional in the way they conduct their business. I would recommend them to anyone in need of HVAC service."
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+6

570 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Universal Air Heating & Cooling LLC
Universal Air Heating & Cooling LLC
4.8(
102
)

Serving Cornwall, PA and surrounding areas

Approved

In business since 2001

Free estimates

Credit card accepted

"I got a quote from Universal for a new HVAC install because I wanted to use a small local business if possible, but I did not end up going with them for a few reasons. The owner, Bill, came to do an in-home walkthrough; he was down-to-earth and open about the different options I could go with. But unlike the other quotes I worked with, he did not take any notes, measurements, or photos and said he would get someone to do the load calculations based on a real estate listing for my home. Due to the history of my house, listings for it are often inaccurate, so that felt like a risk. Ultimately, the quote took longer to be finalized than I was told, and by that point I would lost confidence and gone with a different company."
Response time1 day
Response rate86%
4 neighbors recently requested a quote
Avatar for Prime Home HVAC
Prime Home HVAC
4.8(
22
)

Serving Cornwall, PA and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Super professional group of the most experienced techs around. I would highly recommend and count on them for all my home’s hvac needs."
Goodman Heat Pump
Geothermal Installation
Amana Inverter Ducted system
Goodman Heat Pump
Geothermal Installation

+3

Response time5 hrs
45 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Rohrer's One Hour Heating and Air Conditioning
Rohrer's One Hour Heating and Air Conditioning
4.7(
273
)

Serving Cornwall, PA and surrounding areas

Approved

Super Service Award Winner

In business since 1959

Free estimates

Emergency services offered

"Great service started from calling to schedule the appointment! Received a text reminder before David arrived with his picture, which I thought was a really nice touch. Once he was here, Dave was thorough and spent a good amount of time explaining the maintenance mechanism on our HVAC system (we recently purchased our home and so I was interested in learning more about the UV and filtering system that was installed by the previous owner. Overall, A+. They will be my go to HVAC company for sure."
 Installations
 Technicians
 Office
  Installations
  Technicians

+16

127 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Hoffman Mechanical
Hoffman Mechanical
5.0(
24
)

Serving Cornwall, PA and surrounding areas

Approved

In business since 2024

Free estimates

Customers say: True professional

"Woke to a chilly home stemming from a heat-pump issue. Posted my repair service need on Angi and within minutes, received a text and phone call from HOFFMAN MECHANICAL, who was able to come out same day and got my Lennox unit up and running again at a fair cost for both parts and the weekend/after hours service call fee. I would use them again without hesitation, and I am happy to highly recommend this company!"
Bosch install
Bosch install
Response time7 hrs
22 neighbors recently requested a quote
Recommended by20%of homeowners
Avatar for E & G Heating & Air Conditioning, LLC
E & G Heating & Air Conditioning, LLC
4.8(
44
)

Serving Cornwall, PA and surrounding areas

Approved

In business since 2014

Emergency services offered

Credit card accepted

"my air conditioning wasn't working. I called him in the morning and he was at my house in only 1 hour. Found the problem right away and had in fixed right away. Very happy with the service and will use again if I need to. If you need air conditioning repairs go no further!"
inside  A/C
A/C  install
condenser a/c unit
condenser unit
oil furnace

+65

Response time6 hrs
Recommended by100%of homeowners
Avatar for Petro Home Services
Petro Home Services
4.3(
103
)

Serving Cornwall, PA and surrounding areas

Approved (Corporate)

In business since 1903

Emergency services offered

Warranties offered

"PETRO ALWAYS DELIVERS OIL AS NEEDED. THE SERVICE CONTRACT HAS SAVED US LOTS OF MONEY. THE ANNUAL CLEANING OF THE OIL BURNER PLUS ANY SERVICE REQUIRED THROUGHOUT THE YEAR IS ALWAYS COVERED. IF THERE IS AN EMERGENCY THEY ARE OUT WITHIN A FEW HOURS OF THE CALL."
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Response time6 days
20 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for N. S. Johnson, Inc.
N. S. Johnson, Inc.
4.5(
47
)

Serving Cornwall, PA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"I hired NS JOHNSON to install a Climate Master Tranquility 30 geothermal heating and air conditioning system. Their work was very professionally done, and spot on the budget. The installation took a day an a half. The outdoor temperature was in the low 30 degree (f). On completion of the first day they activated the system to assure we had heat for the night. They completed the installation the next day. Iâ  m very impressed with their work and would recommend them to anyone needing this service. They will continue to maintain the system on a yearly basis. I plan on using them for other services."
Recommended by97%of homeowners
Avatar for Stahl's Mechanical
Stahl's Mechanical
5.0(
12
)

Serving Cornwall, PA and surrounding areas

Approved

In business since 2023

Free estimates

Warranties offered

"Stahls Mechanical is a top notch company and I would highly recommend them for any HVAC/plumbing work you have. My a/c went out and they were out within a day and had me up and running again in no time and at a reasonable price. Staff was friendly and knowledgable. Thank you Stahl’s and team for all of your help! Will definitely use you again in the future!!"
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+13

Response time1 day
47 neighbors recently requested a quote
Recommended by83%of homeowners
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Showing 1-10 of 172
Heating and Air Conditioning questions, answered by experts

Split systems are the most common type of HVAC system. Split systems have two main units: an indoor one and an outdoor one. These units work together to pull in air, heat or cool it, and distribute it throughout your home. Other popular types of HVAC systems include hybrid systems and packaged heating and air systems.

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.

On a summer day, expect your AC to run between 12 and 16 hours. However, this time frame depends on just how hot it is outside and the comfortable temperature you’re hoping to maintain indoors. Assuming the size of your AC is appropriate for the space you’re trying to cool, it shouldn’t be a problem for it to work this many hours.

There are ways to detect a refrigerant leak with several different testing methods. However, most homeowners can figure out something’s wrong with their AC unit by noticing these common signs:

  • Ice forming on the evaporator coil

  • Water leaks near the AC unit

  • Frequent hissing sounds

  • Increased electric bills

  • Unit takes longer than usual to cool

  • Unit is blowing hot air

To reset your air conditioner, start by turning it off at the thermostat. Then, shut off power to the AC system at the circuit breaker. Some units have a dedicated "reset" button; if yours does, press and hold it for three to five seconds. If your air conditioner doesn't have a reset button, or if you are resetting it after a power outage, leave the circuit breaker off for at least 30 minutes to allow the system to reset itself. Afterward, turn the power back on at the breaker, turn on the AC from the thermostat, and set it to "cool" to test the system.

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

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