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TRUSTED BY CARMEL, IN HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon8.1k+
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Carmel

Hoff Heating & Air Conditioning
4.8(
63
)
Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+47 more

Serving Carmel, IN and surrounding areas

Approved

In business since 1991

Credit card accepted

Customers say: Super punctual

"I have been using Mike as my Heating and A/C guy for 17 years and he is awesome! He is very personable, professional, knowledgable, and reasonably proced. He has never tried to sell me anything I don't need (like some others I dealt with). I have also used him for emergencies (water heater) and he has been there when I needed him."
Recommended by100%of homeowners
Avatar for Roy Rogers Heating and Air LLC
Roy Rogers Heating and Air LLC
4.8(
57
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+47 more

Serving Carmel, IN and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"Furnace failed on Sunday, New Year's Eve, below zero temps - doesn't it figure? Found Roy's company here on Angie's List and Roy himself came to our home, found the problem and went SEVERAL extra miles (literally!) to make sure that we had heat that evening! No extra charge in spite of it being a Sunday and a holiday. We found Roy to be caring, personable and obviously knows his stuff. We will be definitely be calling Roy Rogers Heating & Air for our future HVAC needs!"
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Tracy Miller
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Response time2 days
Response rate100%
10 neighbors recently requested a quote
Avatar for Advanced Duct Cleaning, LLC
Advanced Duct Cleaning, LLC
5.0(
22
)
Air Ducts & Vents - Clean

Serving Carmel, IN and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

"Scott was absolutely incredible from the first communication to the final steps in the process. My husband is in HVAC and was blown away by his knowledge and expertise. We have zero complaints and would recommend this company to anyone!"
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+19

Response time8 hrs
Response rate97%
17 neighbors recently requested a quote
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Heating and Air Conditioning questions, answered by experts

A home AC unit provides anywhere from one-half to five tons of cooling and requires approximately two to four pounds of refrigerant per ton of cooling. At approximately five to 10 minutes to fill one pound of refrigerant, a home that requires three tons of cooling will take about six to 12 pounds of refrigerant and approximately 30 minutes to two hours to completely recharge the unit.

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

A common HVAC rule is that for every 500 to 600 square feet of living space, you need 1 ton of heating or cooling capacity. Now that you know this common rule, you also need to know that it isn’t very accurate, and a dedicated pro wouldn’t use it for your home. If you talk to a pro who won’t or can’t perform a proper Manual J calculation, consider hiring someone more thorough.

To diagnose a bad HVAC or AC damper, assess the airflow from your vents. For a manual damper, close it, run your system, and check for airflow. If air is still coming through the vents, the damper is likely faulty and needs repair or replacement. For an automatic damper, turn on your HVAC system and monitor the airflow and room temperature. Signs of a problem include low airflow, a room that won't maintain its set temperature, or a drafty feeling. If you suspect a faulty automatic damper, you may need to hire a professional for repairs.

It’s critical to use the right size AC for your space and not go too small or too big. If you purchase an undersized unit, it won’t properly cool your house, and it has to work harder to reach the optimal temperature. This will eventually wear your unit out. An oversized unit can spell trouble because it will turn off and on more frequently, which also wears out your AC unit. An oversized unit also causes humidity in the home.

The Carmel, 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.