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TRUSTED BY HANOVER, PA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon165
    Verified heating and air conditioning services reviews

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

Avatar for Holtzople Heating, Air Conditioning, & Electrical Services
Holtzople Heating, Air Conditioning, & Electrical Services
4.9(
215
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Repair+41 more

Serving Hanover, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Emergency services offered

"Tim came to our house today to do the semi-annual preventative maintenance check-up on out HVAC system. Tim called to tell us that he would be here 20 minutes ahead of arrival. He was very polite, friendly, and thoroughly professional in checking out our HVAC system."
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+47

Response time1 day
Response rate100%
36 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 Hanover, PA and surrounding areas

Approved

In business since 1936

Free estimates

Emergency services offered

"Very professional. Very Knowledgeable. The equipment is the best I've seen for the price. And I've seen a lot of them. Commercial and residential. I would not use anyone else. HVAC companies are not all the same. Believe me, I know. Have had years of experience overseeing Commerical HVAC contracts."
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8 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for DuctGurus, LLC
DuctGurus, LLC
4.9(
225
)
Air Ducts & Vents - Clean

Serving Hanover, PA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"They were prompt and very professional. They kept us informed during the entire process of cleaning our ducts and dryer vent. They also installed an air scrubber and the total cost was several hundred dollars less than the quote we received from an HVAC company. The HVAC company told us we needed mold remediationâ ¦. DuctGurus found no mold. We received great service so we will be using and recommending this company in the future."
HVAC Duct Cleaning
HVAC Duct Cleaning
HVAC Duct Cleaning
HVAC Duct Cleaning
Dryer Duct Cleaning

+190

Response time1 day
Response rate85%
64 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 Hanover, PA and surrounding areas

Approved (Corporate)

In business since 1903

Emergency services offered

Warranties offered

With over 100 years experience, we know how to keep you comfortable, safe and help you save on energy costs. Our local 24/7 customer service and support means automatic heating oil deliveries and our service response is always fast. We never run out of heating oil plus our pricing and payment plans are designed to help you manage your costs all year round. Experience the Petro difference today!

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Response time6 days
Response rate100%
18 neighbors recently requested a quote
Avatar for Mack's Home Services, LLC
Mack's Home Services, LLC
4.7(
603
)
Air Ducts & Vents - Clean

Serving Hanover, 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 Mendez Heating & Cooling, LLC
Mendez Heating & Cooling, LLC
4.9(
10
)
Gas Boiler or Radiator Heating System - RepairCentral A/C - Service or RepairCentral Air Cleaner - Repair or Service+9 more

Serving Hanover, PA and surrounding areas

Approved

In business since 2022

Credit card accepted

Customers say: Quick response

"I had a great experience with this HVAC technician! Brandon showed up on time, was super professional, and really knew what he were doing. He took the time to explain everything and made sure my system was working perfectly before leaving. You can tell he care about his work. I Definitely recommend them to anyone needing HVAC service! I will definitely be calling back if i ever need service."
Boiler
HVAC system Repairs
Boiler
Heat Pump
Heat Pump

+31

Response time50 mins
Response rate94%
1 neighbors recently requested a quote
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Heating and Air Conditioning FAQs, answered by experts

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.

When first installed, flex ducts shouldn’t cause airflow problems in your home. However, because flex ducts aren’t the sturdiest and require extra support, they lose their durability over time and begin to sag, which can inhibit airflow down the road. Also, if your flex ducts aren’t tight enough, your HVAC could work twice as hard for the same air pressure. If you’re worried about the airflow in your home, a rigid duct may be your best bet.

Unfreezing an AC unit is not a DIY project unless the problem is a dirty air filter. Changing out an air filter is easy for homeowners, but otherwise, trying to repair ductwork, refill refrigerant, or replace a blower fan motor are tasks best left to the pros. Otherwise, you could cause further damage to your cooling system or even harm to yourself.

Here’s how AC professionals will clean your AC coils:

  1. Unplug the AC unit or turn off the breaker to the unit in your circuit breaker box.

  2. Remove the faceplate.

  3. Spray a vacuum hose attachment or compressed air can to remove debris, dust, dirt, and grime.

  4. Use a soft-bristled fin comb to remove stubborn caked-on debris.

  5. Use the vacuum hose to suck up any extra debris.

  6. Take a coil-safe cleaning solution and spray it onto the coils. Try to choose a no-rinse solution.

  7. Let the solution sit for at least 15 minutes.

  8. Gently wipe away loosened grime and debris with a microfiber cloth.

  9. Reattach the faceplate, plug in your AC system, or turn the breaker back on.

Professional HVAC installation requires licensed expertise in several areas, including electrical- and plumbing-related work. An HVAC team must know how to safely handle regulated refrigerant chemicals and the gas, oil, or propane used in furnaces and boilers. A proper HVAC installation protects your home from energy loss, fires, and even carbon monoxide leaks.

The Hanover, 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.