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TRUSTED BY GREENCASTLE, IN HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon37
    Verified heating and air conditioning services reviews

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

Avatar for One Hour Heating & Air Conditioning - Indianapolis
One Hour Heating & Air Conditioning - Indianapolis
4.7(
589
)
Air Ducts & Vents - CleanCentral A/C - Service or RepairGas Furnace / Forced Air Heating System - Repair+9 more

Serving Greencastle, IN and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1995

Emergency services offered

Warranties offered

"Mr. Dennis H came to our house to do our HVAC maintenance check & he is so efficient & did a good job in doing a whole maintenance check on our HVAC unit explaining everything to us in the way we can easily understand it & he patiently taught us on how to be able to take care of our unit to avoid problems & he let us feel confident that everything is working out well but he also informed us that we can always call the office if we need some assistance with our HVAC unit. He is so nice & very professional. We are really happy to have him check our HVAC. We will definitely ask for him again for our future services. And we will gladly refer him to friends & family. Great Job Mr Dennis!!! Thank you for all your help!"
One Hour Team
ACCA Logo
PHCC Logo
NATE Logo
86 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for ARS/Rescue Rooter Indianapolis (HVAC)
ARS/Rescue Rooter Indianapolis (HVAC)
4.3(
22
)
Central A/C - InstallCentral A/C - Service or RepairGas Furnace / Forced Air Heating System - Install+5 more

Serving Greencastle, IN and surrounding areas

Approved (Corporate)

In business since 1959

Free estimates

Emergency services offered

ARS®/Rescue Rooter® Indianapolis was founded with the goal of providing the highest quality air conditioning, heating, insulation, and plumbing services to our customers. We understand that when it comes to the HVAC and plumbing systems in your home, you need to find a team that is trustworthy, experienced, and able to quickly diagnose and resolve your issues. Our company offers a dependable 24/7 emergency service that is designed to meet your needs, whenever they may arise.

New System Installation
ARS
466 neighbors recently requested a quote
Recommended by78%of homeowners
Avatar for Indiana Geothermal
Indiana Geothermal
4.6(
20
)
Geothermal Heating or Cooling System - Service

Serving Greencastle, IN and surrounding areas

Approved

In business since 1990

Free estimates

Credit card accepted

"Kris is very experienced in HVAC and puts the customers needs first, He helped me design a system that will work for my future plans and his idea cost thousands less. Kris is very friendly and professional. His crews were a pleasure to work with. I will definitely continue to use Artic for my service and any future projects. I highly recommend you get a quote from them for your HVAC needs."
Response time9 hrs
Recommended by100%of homeowners
Avatar for WN Electrical Services, LLC
WN Electrical Services, LLC
4.9(
17
)
Electrical Baseboard or Wall Heater - Install

Serving Greencastle, IN and surrounding areas

Approved

In business since 2017

Free estimates

Credit card accepted

WN Electrical Services, LLC, offers over 28 years of combined experience in the electrical industry. We take on a wide range of electrical projects to include full installations as well as generator installs, wiring and panel upgrades and a variety of other jobs. We take pride in the quality of our work and our commitment to outstanding results. Call us today!

Office lights
Cabin
Cabin
Kids Room
Conrad

+10

Response time2 days
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Service Master Clean
Service Master Clean
5.0(
11
)
Air Ducts & Vents - Clean

Serving Greencastle, IN and surrounding areas

Approved

In business since 1994

Free estimates

Credit card accepted

"Servicemaster in Greencastle is excellent. I've used them three times, and each time, they've been responsive and reliable, bringing my rugs back clean and fresh smelling, and willing to go the extra mile (with a smile)."
Profile Picture
Upholstery
Response time1 day
14 neighbors recently requested a quote
Recommended by18%of homeowners
Avatar for Lockhart Electric, LLC
Lockhart Electric, LLC
5.0(
13
)
Electrical Baseboard or Wall Heater - InstallElectrical Baseboard or Wall Heater - Repair

Serving Greencastle, IN and surrounding areas

Approved

Super Service Award Winner

In business since 1986

Free estimates

Small jobs welcome

Lockhart Electric LLC is committed to excellence \nin every aspect of our business. We uphold a standard of integrity bound by \nfairness, honesty, and personal responsibility. Our distinction is the quality \nof service we bring to our customers. Accurate knowledge of our trade combined \nwith ability is what makes us true professionals. Above all, we are watchful of \nour customers' interests, and make their concerns the basis of our business. \n

Kitchen Lighting
Response time1 day
5 neighbors recently requested a quote
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Heating and Air Conditioning FAQs, answered by experts

A window AC unit is not completely silent. You’ll hear the sound of air blowing, and if you put your ear right up next to the unit, you may hear a slight hiss or gurgle as the refrigerant flows through the system. That said, if your system is making a running water sound, a loud banging sound, a grinding sound, or physically vibrating, you may be facing an issue or malfunction with your AC unit.

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.

The cost to repair an air conditioner averages around $350 to $450, but the price can range from $100 to over $3,000. The final cost depends on the type of air conditioner, the extent of the damage, and the specific parts that need replacement. For example, repairing a window AC unit typically costs between $100 and $250, while central air conditioner repairs can range from $300 to $3,000. A simple fix like replacing a dirty filter might only cost $10 to $50, but a major issue like a broken compressor could cost around $2,000 or more, potentially making it more cost-effective to replace the entire system. Due to the need for specialty tools and handling of refrigerants, repairs more complex than changing a filter are best left to a professional.

Many HVAC companies offer free quotes and free estimates for repairs and new HVAC systems. Others offer low-cost quotes or apply the cost of the estimates or diagnostics to your final bill if you hire them. Be aware that some companies advertise free HVAC quotes and recoup the costs by charging more for their services. Free HVAC quotes are never truly free—they cost the company time and effort—so be a good customer. Also understand that you may end up paying for free quotes in another way if you don’t hire a reputable company.

Yes, scorpions can enter a home through AC vents, especially if the system is not well-sealed. As excellent climbers, they can scale a home's exterior and squeeze through gaps as small as 1/16 of an inch. Scorpions are often attracted to the moisture around air conditioning ducts or seek cooler areas during hot weather, using vents as a pathway inside. They may slip through small openings where the duct meets the vent cover and travel within walls before emerging. To prevent this, inspect your vents, seal any gaps, and consider installing fine mesh screens.

The Greencastle, IN 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.