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Best heating and air conditioning pros near Radnor, PA

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TRUSTED BY RADNOR, PA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon1.4k+
    Verified heating and air conditioning services reviews

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

Avatar for East Coast Comfort Inc
East Coast Comfort Inc
4.9(
579
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallBoiler or Radiator Heating System - Install or Replace+33 more

Serving Radnor, PA and surrounding areas

Approved

In business since 2006

Emergency services offered

Credit card accepted

"ECC is AWESOME!! From talking with Lisa, who scheduled EVERYTHING!! to Ed the gentleman who came out and estimated the job, to Tony, his son and Jane (the installers) everything was seamless!! The communication was EXCELLENT!! Lisa is excellent at keeping me informed about the process and following up when things were done. I can’t say enough about Tony and his crew!! He went above and beyond my expectations! He even RE-routed a condensation pipe to the gutter so it wouldn’t keep dripping onto my shingles!! Just an amazing company!! Would ( and have) recommend them to everyone I know for their HVAC needs"
Additional Photos
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Response time2 days
Response rate99%
5 neighbors recently requested a quote
Avatar for Ace Hardware Home Services
Ace Hardware Home Services
4.6(
678
)
Central A/C - InstallGas Boiler or Radiator Heating System - InstallGas Furnace / Forced Air Heating System - Install+6 more

Serving Radnor, PA and surrounding areas

Approved (Corporate)

In business since 1966

Free estimates

Emergency services offered

"Unique is true to their name. What a great company! I needed a new HVAC system. Curt from sales came to my house and did a very thorough evaluation of my existing HVAC system. He painstakingly took pictures of my system, took several measurements, and both asked and answered a myriad of questions in order to ensure I would have the right system installed. In addition, Curt told me to call or text him with any questions. When I did so, he answered me immediately. He provided me with different options to fit my budget, and made sure I was confident in my ultimate purchasing decision. When it was time for the installation to be performed, installers Bruce and Jeff were tops! They did their own evaluation, and made some observations and suggestions that helped my new system function optimally. I'm sitting in my warm house as I write this, with a great new HVAC system, and a company I can continue to rely on in the future to keep my new system running at it's best. I look forward to the warmer weather for various reasons of course, but I will enjoy having a house that stays cool for a change! Do your homework and get your estimates from other companies. You'll find as did I, that Unique goes above and beyond relative to other companies. They have an old school customer first mentality that is most welcome in an age where it's not always easy to find good companies. Kudos!"
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+3

4 neighbors recently requested a quote
Recommended by91%of homeowners
Old Skool HVAC, LLC
4.8(
240
)
Gas Furnace / Forced Air Heating System - InstallCentral A/C - InstallCentral A/C - Service or Repair+18 more

Serving Radnor, PA and surrounding areas

Approved

In business since 1983

Free estimates

Emergency services offered

"Our oil heater went out in a snow storm. They were VERY helpful, and got our heater installed quickly! I would recommend Old Skool HVAC to anyone looking for affordable, dependable service! Thank you Old Skool!!"
 92% Airtemp Furnace
 92% Natural Gas Furnace W/3 ton a/c System
Response time7 hrs
9 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Generation 3 Electric & HVAC
Generation 3 Electric & HVAC
4.7(
774
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Repair+47 more

Serving Radnor, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Emergency services offered

"We have used Gen3 on a couple of different jobs. They installed a new circuit breaker, two ceiling fans, redid all of our outlets and installed a common wire for our HVAC. Each time we reach out to them, they respond promptly and send out competent, professional, and courteous people. They make sure they wear booties and cover up furniture when necessary. I have recommended Gen3 to my friends and family as well. Cannot recommend them enough!"
Lighting Installation
Electrical Service and Installation
Wiring and Home Protection Devices
Roof Top Solar system
Additional Photos

+14

Response time1 day
Response rate100%
139 neighbors recently requested a quote
Avatar for Sila Heating, Cooling, Plumbing, & Electrical
Sila Heating, Cooling, Plumbing, & Electrical
4.5(
302
)
Central A/C - Service or Repair

Serving Radnor, PA and surrounding areas

Approved

In business since 1985

Free estimates

Emergency services offered

"This company is excellent. On Monday my oil furnace broke down and by Wednesday, I have a new heater and it was also converted to gas instead of oil. The two technicians, Josh and Justin were so efficient and very knowledgeable. What a pleasure to do business with a company that knows how to satify its customers. I will definetely refer this company for any HVAC services. Thank you"
Recent Installations
Carrier Installation
Williamson Installation
Carrier System
Carrier Installation

+6

Response time12 hrs
Recommended by98%of homeowners
Avatar for DiBiase Heating & Cooling Company
DiBiase Heating & Cooling Company
4.8(
58
)
Gas Furnace / Forced Air Heating System - InstallCentral A/C - InstallElectric Furnace / Forced Air Heating System - Install+47 more

Serving Radnor, PA and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Great company run by friendly people. Joe and his team know their stuff. Deborah is a pleasure to speak to on the phone. I first called due to some weird behavior with my HVAC and wanted them to come take a look. Before they arrived, the HVAC started working ok again. I called them back and when I told them what was going on, they explained that there was nothing wrong and the weird behavior I explained was actually normal based on what I had my thermostat set to. No visit and no fee required. A lot of other service companies might have urged a visit and charged me the fee. I then hired them for a regular maintenance service contract, and they have been fantastic. Always show up on time.
"
Air Conditioner Installation
Air Handler Installation
Water Heater
Furnace Installation
Heat Pump and Air Handler

+6

Response time1 day
4 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for MECHANICAL MISSION USA, LLC
MECHANICAL MISSION USA, LLC
4.5(
173
)
Central A/C - Service or RepairElectric Furnace / Forced Air Heating System - Repair - For BusinessGas Boiler or Radiator Heating System - Repair - For Business+4 more

Serving Radnor, PA and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Jeff, the owner, came out personally to fix my issue. I was so impressed by his professionalism and honesty that I signed up for a preventative maintenance program. I highly recommend Mechanical Monster, and will be using them for all my HVAC needs in the future."
Heat Pump
AC Repair
AC Unit
Water Heater
AC Unit

+26

Response time9 hrs
Response rate90%
2 neighbors recently requested a quote
Avatar for Petro Home Services
Petro Home Services
4.4(
1,786
)
Central A/C - InstallOil Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Install+47 more

Serving Radnor, PA and surrounding areas

Approved (Corporate)

In business since 1903

Emergency services offered

Warranties offered

"

we had a leak problem and the tech came and looked over our equipment, fixed the problem and left. It cost us nothing and we have had their home heating service contracts for over 20 years.  They have NEVER ONCE not shown up or not helped and in the two furnace emergencies we had--they were here with in 1hr. 

We are very happy.


"
Additional Photos
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Response time6 days
Response rate100%
18 neighbors recently requested a quote
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Heating and Air Conditioning FAQs, answered by experts

The length of an AC cycle depends on the settings in your thermostat and the unit you have. Central AC doesn't constantly run at full blast the way that a window unit does. A cooling cycle in most homes is 15 to 20 minutes. Then, the unit stays off for seven to 10 minutes to circulate the cold air in the house before the cycle repeats. It should repeat two or three times per hour. A short cycle lasts less than 10 minutes and then turns off.

There are many recognizable symptoms of AC compressor failure. They include loud banging noises, hot air being continually circulated in your home despite running the AC at full blast, uneven airflow and cooling, and electrical issues like constant surges due to the compressor working overtime. While some of these symptoms, like uneven cooling, can have other root causes, they are common indicators of compressor problems.

Yes, it’s normal for an AC to drip water. In fact, it’s part of the dehumidifying process that takes place inside your AC unit as the condensation trickles down into the drain pan. However, it isn’t normal for your AC to sound like it’s running water or have large puddles around it. If that happens, you can try the solutions listed above or call an AC repair pro.

No, for two very important reasons. First, it’s illegal to release refrigerant into the air or ground since it can be toxic and cause environmental damage. Technicians typically pump old or extra refrigerant into separate tanks for special disposal. Second, without professional equipment to read refrigerant pressure and levels, plus the AC’s suggested requirements, it’s impossible to know if you’ve removed the right amount of refrigerant. Stay away from a DIY solution here and seek an expert with the right tools.

Fixing a leak in an AC unit costs $200 to $1,600, depending on the type of leak and any related damage. But depending on the age and condition of your AC, it might make more sense to replace the AC unit instead of repairing it. If your AC is only a few years old and relatively problem-free, then repairing it is the right call. But if it’s nearing a decade old and has other issues, consider replacing it.

The Radnor, 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.