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Find Central a/c service or repairers in Hummelstown

Avatar for N. S. Johnson, Inc.
N. S. Johnson, Inc.
4.5(
47
)
Central A/C - Service or Repair

Serving Hummelstown, PA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"The technician was prompt and friendly. He quoted a competitive price and fixed my vent problem in a short amount of time."
1 neighbors recently requested a quote
Recommended by97%of homeowners
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Avatar for H L Bowman
H L Bowman
4.6(
428
)
Central A/C - Service or Repair

Serving Hummelstown, PA and surrounding areas

Approved (Corporate)

In business since 1946

Free estimates

Emergency services offered

"Exceptional service from the initial diagnosis to repair, superb team. I appreciated everyone's thoroughness, willingness and honest business tactics. They provided a safe environment for me to ask questions and we explored all options. Ultimately, Joshua, sealed the deal by being caring and understanding. His expertise showed but most importantly his work ethics and integrity was felt. Many thanks to the whole team Brett, Joshua, Jason and Peter delivered Top notch service. Lastly, the communication was A+. Loved receiving text messages with photo id's, true professionals. Highly recommend! You won't be disappointed!"
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+6

475 neighbors recently requested a quote
Recommended by86%of homeowners
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Avatar for Petro Home Services
Petro Home Services
4.3(
103
)
Central A/C - Service or Repair

Serving Hummelstown, PA and surrounding areas

Approved (Corporate)

In business since 1903

Emergency services offered

Warranties offered

"Immediately established service and explained all options"
Additional Photos
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Response time6 days
Response rate100%
17 neighbors recently requested a quote
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Avatar for Rohrer's One Hour Heating and Air Conditioning
Rohrer's One Hour Heating and Air Conditioning
4.7(
274
)
Central A/C - Service or Repair

Serving Hummelstown, PA and surrounding areas

Approved

Super Service Award Winner

In business since 1959

Free estimates

Emergency services offered

"The technician Adam couldn't have been more professional and helpful. He arrived on time and was very courteous. He quickly was able to assess the problem and repair it. I'd recommend One Hour Heating and Air Conditioning to anyone looking to install or repair their HVAC system."
Installations
Technicians
Office
Installations
Technicians

+16

84 neighbors recently requested a quote
Recommended by92%of homeowners
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Avatar for E & G Heating & Air Conditioning, LLC
E & G Heating & Air Conditioning, LLC
4.8(
44
)
Central A/C - Service or Repair

Serving Hummelstown, PA and surrounding areas

Approved

In business since 2014

Emergency services offered

Credit card accepted

"Edwin is fantastic!! Our boiler stopped working in the middle of the night. We called E&G at 9 am and they were here to repair the furnace by 11am the same day. Ed was meticulous and professional with reasonable rates. This was our first time using E&G and we very excited to say we found our new â Furnace Guyâ ."
inside A/C
A/C install
condenser a/c unit
condenser unit
oil furnace

+65

Response time6 hrs
Recommended by100%of homeowners
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Avatar for Stahl's Mechanical
Stahl's Mechanical
5.0(
13
)
Central A/C - Service or Repair

Serving Hummelstown, PA and surrounding areas

Approved

In business since 2023

Free estimates

Warranties offered

"My home air conditioning wasn't functioning properly. Will Stahl analyzed the problem and had a replacement unit installed in less than 24 hours on the hottest day of the year! You cannot get better or more reliable service that Stahl's Mechanical! And great conversation too!"
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+13

Response time3 days
Response rate100%
11 neighbors recently requested a quote
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Avatar for Higher Degree Mechanical
Higher Degree Mechanical
5.0(
4
)
Central A/C - Service or Repair

Serving Hummelstown, PA and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

"Rey was very thorough. He explained what was wrong with my system and why the part he replaced needed to be. He didn't try to sell me anything that I didn't want or need and I didn't feel like I was a dollar sign."
Higher Degree Mechanical
18 neighbors recently requested a quote
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Avatar for Purified Air, LLC
Purified Air, LLC
4.3(
14
)
Central A/C - Service or Repair

Serving Hummelstown, PA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"The mini split fan motor was replaced and is now working well. The price was fair and installation time was reasonable. I am very pleased with the service provided!"
HVAC
HVAC
HVAC
HVAC
HVAC

+2

Response time2 hrs
Response rate95%
7 neighbors recently requested a quote
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Avatar for Heisenberg Electric
Heisenberg Electric
5.0(
5
)
Central A/C - Service or Repair

Serving Hummelstown, PA and surrounding areas

Approved

In business since 2024

Emergency services offered

Credit card accepted

"Excellent customer services including timely and effective repair work. Among others, the company installed an oven hood vent and new light fixtures very well. I would recommend this company."
Response time3 hrs
Response rate100%
Recommended by60%of homeowners
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FAQs for central a/c service or repair projects in Hummelstown, PA

Coils work to absorb heat into the refrigerant that flows through them, moving heat from one location to another. For air conditioning, the evaporator coil inside the air handler in your home absorbs heat. It then transfers the heat outside to the condenser coil, where it releases it. The opposite process happens for heat pumps. When the coils get dusty and dirty, it reduces how well these components work.

Skip regular cleanings, and dirt, debris, and mineral deposits will blanket your evaporator and condenser coils. When that happens, the coils can’t shed heat efficiently, so the system works harder and your energy bill climbs. Over time, overheating strains the compressor and can trigger a full breakdown—an avoidable repair that often costs far more than a simple annual cleaning.

AC coil cleaning is an investment that pays for itself in the benefits it provides. Dust‑caked coils force your AC to run longer, so you spend more on electricity and rack up extra wear. A quick professional cleaning restores efficiency, trims monthly bills, and eases strain on expensive parts. Over the long haul, that small yearly fee delays pricy repairs and stretches the unit’s lifespan, making coil cleaning one of the smartest HVAC tune‑ups you can schedule.

Watch for higher electric bills, rooms that stay warm no matter how low you set the thermostat, or an AC system that runs nonstop. Extra humidity and frost on the coils are also red flags. Catching these clues early lets you schedule a quick cleaning before the system overworks itself and triggers an expensive breakdown.

Your AC cleaning technician starts by shutting off the power to the unit and removing the faceplate. Compressed air and a vacuum hose blast away loose debris, followed by a coil-safe, no-rinse cleaner that dissolves stubborn grime. After the solution has soaked in, the professional wipes the fins, reassembles the housing, and restores power, leaving the system ready to cool at peak efficiency.

The Hummelstown, PA homeowners’ guide to central a/c service or repairs

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

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