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Best heating and air conditioning pros near Littlestown, PA

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TRUSTED BY LITTLESTOWN, PA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon274
    Verified heating and air conditioning services reviews

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

Avatar for Holtzople Heating, Air Conditioning, & Electrical Services
Holtzople Heating, Air Conditioning, & Electrical Services
4.9(
214
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Install+41 more

Serving Littlestown, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Emergency services offered

"Kevin arrived today for the Spring Preventive Maintenance service on our HVAC system that we purchased a few years ago from Holtzople Heating & Air Conditioning. As always, we received an email and a phone call to let us know when the HVAC technician would be arriving. The Holtzople HVAC technicians are always very professional, clean, thorough, and polite and friendly. They are always willing to answer any questions we have, and their expertise and experience are evident in the excellent service they provide."
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+47

Response time1 day
Response rate100%
46 neighbors recently requested a quote
Avatar for Dean's Heating & Air Conditioning
Dean's Heating & Air Conditioning
4.9(
110
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallDuctless Mini-split A/C - Install or Replace+5 more

Serving Littlestown, PA and surrounding areas

Approved

In business since 1988

Free estimates

Emergency services offered

"I was looking for a company to replace a 27 yr old HVVAC system that was acquired with the purchase of our new home. I took the time to evaluate and entertain 5 companies with their associated estimates including Deans Heating and Air Conditioning. In my research I found that Deans HVAC had received 5 star reviews from every client for whom they had serviced. After speaking with Mike the owner I was very impressed as he listened to what I was looking for and shared exemplary knowledge on what my HVAC project needed. Mike took time to answer all of my questions in addition to providing the best and most fair estimate in comparison to the other companies I had spoken with. Mike was very thorough and took care to make sure everything was installed with precision and a personal attention to detail. Even though our project had its own unique challenges, Mike and his assistant worked with efficiency and finished in a timely manner. Working with Deans Heating and Air Conditioning was an awesome and rewarding decision as we are very pleased with the installation of our new HVAC system. I would highly recommend Deans HVAC to everyone looking for a knowledgeable, fair priced , caring, and professional company to address their HVAC needs ranging from general services to full HVAC replacement projects. Definitely a FIVE STAR company!!!!!"
Response time4 hrs
Response rate100%
4 neighbors recently requested a quote
Avatar for McCrea Heating & Air Conditioning Services of PA
McCrea Heating & Air Conditioning Services of PA
4.7(
317
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+21 more

Serving Littlestown, PA and surrounding areas

Approved

In business since 1936

Free estimates

Emergency services offered

"Rob was the service technician who came by for check up on our Trane AC Unit. He was professional and courteous. He took time to explain and label damper settings for future reference. He was the best HVAC technician I have ever encountered thus far. Rob is definitely an asset to McCrea company. If I ever need service again, I want Rob to be the one to service my AC Unit. Thank you!"
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5 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for DuctGurus, LLC
DuctGurus, LLC
4.9(
225
)
Air Ducts & Vents - Clean

Serving Littlestown, PA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Hired to clean HVAC duct work in my home. They professional and meticulous about their work. They were on time and continued to work until the job was done. They gave me timely advice on system maintenance. Their work is outstanding."
HVAC Duct Cleaning
HVAC Duct Cleaning
HVAC Duct Cleaning
HVAC Duct Cleaning
Dryer Duct Cleaning

+190

Response time1 day
Response rate85%
75 neighbors recently requested a quote
Avatar for Ethan Williams Plumbing & Heating
Ethan Williams Plumbing & Heating
4.9(
56
)
Oil Boiler or Radiator Heating System - InstallCentral A/C - Service or RepairDuctless Mini-split Heating System - Install or Replace+3 more

Serving Littlestown, PA and surrounding areas

Approved

In business since 2000

Free estimates

Credit card accepted

With over 20 years of experience Ethan Williams is a second generation Master plumber. Specializing in all phases of Plumbing, Heating, and A/C Ethan Williams Plumbing is dedicated to satisfying customer needs and will accommodate to each clients personal preference. Up to date with the latest products, codes, equipment and techniques to advise the best solution for your needs and budget. We are fully licensed and insured for your peace of mind. It would be our pleasure to provide your next emergency service, scheduled service, or to set up a visit for a free plumbing estimate. \n

3 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Mack's Home Services, LLC
Mack's Home Services, LLC
4.7(
603
)
Air Ducts & Vents - Clean

Serving Littlestown, PA and surrounding areas

Approved

In business since 1993

Free estimates

Emergency services offered

"My experience with Mack’s Home Services, LLC was excellent. The people are very professional and did a tremendous job. They were courteous, explained their services and pricing clearly, and things went exactly as they communicated. They were very respectful and operated very carefully throughout our home. I will use them whenever I need our HVAC systems cleaned in the future and strongly recommend them. You will not be disappointed."
Response time3 hrs
1 neighbors recently requested a quote
Recommended by99%of homeowners
Avatar for Strive Heating & Cooling, LLC
Strive Heating & Cooling, LLC
4.9(
26
)
Ducts & Vents - Install or ReplaceGas Furnace / Forced Air Heating System - InstallHeat Pump - Install or Replace+10 more

Serving Littlestown, PA and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Not only did they replace my old oil system with a heat pump, they replaced my entire AC system as well. Much more efficient, included new thermostats which are operated via mobile devices, and gave me peace of mind. Recommended an appropriate heating and AC system, replaced everything and did it in an efficient manner. Much more reasonably priced than all other quotes, prompt service & quick completion of the task. Didn't try to talk over my head about things that I wouldn't understand, explained it clearly and effectively. Highly recommend to anyone needing any type of heating or cooling repairs or replacements."
Trane high efficiency Tam9 air handler
Trane Xr14 heat pump
Trane Xr14
Goodman furnace and air conditioning replacement
Goodman furnace and air conditioning replacement

+15

Response time1 day
5 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Central Penn Duct Cleaning
Central Penn Duct Cleaning
4.9(
25
)
Air Ducts & Vents - Clean

Serving Littlestown, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"I spoke with James about cleaning my air ducts. He explained the process to me and followed up with an email that included the same information, along with the appointment scheduled for the next day and the total cost. When Mike and Shawn arrived, they introduced themselves and immediately got to work. They asked a few questions and showed me how much dirt was in the ducts. I didn’t take pictures, but you can imagine these air ducts had probably never been cleaned before. I would recommend Central Penn Air Duct Cleaning to anyone who is interested. From customer service to completing the job, these guys are straightforward and professional."
Response time9 hrs
Response rate100%
16 neighbors recently requested a quote
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Heating and Air Conditioning FAQs, answered by experts

To lower humidity quickly, run a dehumidifier or your home's air conditioner or turn on exhaust fans to extract moisture. These methods can quickly and effectively bring your home's humidity levels to a comfortable condition. However, you should consistently practice humidity-reducing tasks to maintain proper indoor humidity levels.

If your HVAC system's capacity doesn't match the required CFM (Cubic Feet per Minute), imbalances can occur. An undersized system struggles to maintain desired temperatures, leading to discomfort. An oversized system might short-cycle, wasting energy and causing temperature fluctuations. Properly matching capacity to CFM ensures efficient and consistent heating, cooling, and home ventilation system performance.

If possible, avoid placing furniture in front of a return air vent. A blocked air vent can cause your HVAC system to use more energy, which in turn can lower the life span of your unit and raise your energy bill. Furniture can also trap hot or cold air, damaging your furniture or appliances. 

Professional duct installers suggest leaving between six and 12 inches of space in front of an air return vent. If you must place furniture in front of a return air vent, try to aim for putting furniture over a floor vent instead of in front of a wall vent, and avoid draping curtains over any vent system.

While your AC unit may still run even if its capacitor is going bad, doing so takes a lot more energy, so it can drive up your electric bill and cause further damage to your AC unit’s parts. If you suspect a bad capacitor, it’s important to have a professional diagnose and fix the problem before you continue to run your AC.

A new HVAC system combines components to control indoor temperature and air quality. Features include a furnace or heat pump and an air conditioner or evaporator coil, depending on the climate requirements. It also involves a network of ductwork for air distribution, a thermostat for temperature regulation, and electrical connections. Air purifiers or humidifiers can be integrated to improve indoor air quality.

The Littlestown, 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.