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TRUSTED BY DANVILLE, OH HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon33
    Verified heating and air conditioning services reviews

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

Avatar for MAD Heating and Cooling, LLC
MAD Heating and Cooling, LLC
5.0(
3
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallElectric Furnace / Forced Air Heating System - Install+6 more

Serving Danville, OH and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

MAD Heating and Cooling is a locally owned and operated HVAC company serving Columbus and the surrounding Central Ohio communities. Our team specializes in residential heating, cooling, and indoor air quality solutions with a focus on honest service, reliable workmanship, and energy-efficient systems. \n \nWith years of experience in the HVAC industry through our parent company, McWilliams Mechanical, we bring professional expertise and commercial-level knowledge to every residential project. Whether you need a furnace repair, air conditioner replacement, heat pump installation, or routine maintenance, our technicians are committed to doing the job right the first time. \n \nServices include: \n? Furnace repair and replacement \n? Air conditioning repair and installation \n? Heat pump service and installation \n? Ductwork and airflow improvements \n? Seasonal maintenance and tune-ups \n? Indoor air quality solutions

Furnace Install
Carrier
11 neighbors recently requested a quote
Trent M Craig Contractor
5.0(
9
)
Thermostat - Install or ReplaceThermostat - Repair or Reprogram

Serving Danville, OH and surrounding areas

Approved

In business since 2007

Free estimates

Warranties offered

"Trent did a fantastic job remodeling our bathroom, exhibiting precision workmanship with having to ensure the walls were square and plumb, as well as leveling the uneven basement floor, and putting in a cool curved shower door. He put marble tile in the shower, making sure each tile was perfectly aligned with the others to get a mirror affect from a distance. He then graciously handled a curveball from the customer (that’s me!) when I decided to change the color of the grout AFTER one wall was done. He obliged and re-grouted to my satisfaction, with no harm done to the beautiful marble tiles!"
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+2

Response time1 day
Response rate100%
2 neighbors recently requested a quote
Homestead Air, LTD
5.0(
2
)
Central A/C - Service or RepairElectric Furnace / Forced Air Heating System - RepairGas Furnace / Forced Air Heating System - Repair+1 more

Serving Danville, OH and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"Keith came on a sweltering Saturday and knew exactly what to do. He had a long drive and I appreciate his taking the time to help us out! I thought his rates were reasonable and his knowledge of what to do outstanding. If I ever need help for other heating or cooling issues there is no one else I would think of calling."
2016 Project
2016 Project
2016 Project
Response time20 mins
Response rate100%
Recommended by100%of homeowners
Avatar for Cosby Heating & Air Conditioning, LLC
Cosby Heating & Air Conditioning, LLC
5.0(
1
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceGas Furnace / Forced Air Heating System - Install+3 more

Serving Danville, OH and surrounding areas

Approved

In business since 2008

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

Response time1 day
Recommended by100%of homeowners
Stephanie
New to Angi
Air Ducts & Vents - Clean

Serving Danville, OH and surrounding areas

Approved

\n✨ Reliable Cleaning & Organizing Services ✨\nOffering detailed home cleaning, maid services, and professional organizing for any space that needs a fresh start. Whether it’s deep cleaning, weekly upkeep, or getting your home decluttered and back in order, I handle it all with care and attention to detail.\n\nTrustworthy, dependable, and focused on leaving every room spotless, organized, and peaceful. One-time, weekly, or custom schedules available — your space, your way.\n\nLet me do the cleaning, so you can enjoy your home again! 🧹💛

Avatar for Matt Durbin Plumbing
Matt Durbin Plumbing
New to Angi
Electric Boiler or Radiator Heating System - InstallElectric Boiler or Radiator Heating System - RepairGas Boiler or Radiator Heating System - Install+3 more

Serving Danville, OH and surrounding areas

Approved

Free estimates

Small jobs welcome

Hi! I’m Matt and I’ve been plumbing for 2 years! I’ve worked with and installed many different systems, but I specialize in water heater install and service, repairing leaks in drainage and water pipes, and installing fixtures! I believe all work must be done neatly and to the home/business owner’s standards, no matter what.

2 neighbors recently requested a quote
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Heating and Air Conditioning FAQs, answered by experts

While most air conditioners can last between 10 and 20 years, they will only last this long (or longer) if properly taken care of. Routine maintenance and inspections help keep your AC unit running in tip-top shape but understanding what factors will decrease its lifespan will also help keep your unit running cool.

Some things that shorten your AC’s lifespan include:

  • Extreme outdoor conditions, like high humidity or extensive salt spray 

  • Improper installation

  • Extended run times, either by the unit being too small or the thermostat setting too low

  • Not performing required maintenance

It’s not customary to tip HVAC technicians, and most professionals won’t expect it. However, it’s a nice way of showing your appreciation for the work they do, especially if they come out in inclement weather or on a weekend or holiday to fix an emergency issue if your heat or AC goes out in extreme temperatures. A good tip would be between 10% to 20% of the total bill, depending on how above and beyond the tech goes for your repair and on the total cost of your HVAC repair or service. For something like a routine tune-up or scheduled maintenance, tips aren’t expected.

No. Evaporator coils are designed to work with specific refrigerant types, and they are rated by what kinds of refrigerant they use. It’s indicated with an “R” code. It’s important to match your evaporator coil and refrigerant or your system will not work properly. An AC technician can tell you what type of refrigerant your system needs and what evaporator coils will work with it.

If you have central air conditioning, it’s fine to run your AC all day if that’s what you want—as long as the AC unit is in good condition. But if your AC runs constantly when you don’t want it to, there may be a problem with your system (like the ones we’ve mentioned above). Window AC units and wall air conditioners aren’t as powerful as central AC, so you should only run those kinds of air conditioners for eight to 12 hours at a time.

The standard rule for return duct sizing is that the return vent should be the same size or larger than the supply vent. This will ensure balanced airflow in your home and reduce strain on your HVAC system.

The Danville, OH 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.