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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon115
    Verified heating and air conditioning services reviews

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

Avatar for Mountain Comfort Heating & Air LLC
Mountain Comfort Heating & Air LLC
5.0(
10
)
Central A/C - InstallCentral A/C - Service or RepairDucts & Vents - Install or Replace+4 more

Serving Greeneville, TN and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

"We recently had the pleasure of working with Mountain Comfort Heating & Air and I can confidently say this was one of the best service experiences I’ve ever had. Owner Josh Jenkins is the definition of professionalism, knowledge, and integrity in the HVAC industry. From the moment he arrived, it was obvious he truly understands his craft at an expert level. Josh took the time to thoroughly diagnose the issue instead of rushing to a quick fix like many companies do. He explained everything clearly, answered every question with patience, and made us feel completely confident in the work being performed. His attention to detail, workmanship, and pride in what he does are absolutely exceptional. What really sets Josh apart is not just his technical ability, but the way he treats people. He genuinely cares about his customers, their comfort, and doing the job the right way the first time Thank you Josh!"
New construction install
New construction install
New construction install
New construction install
New construction install

+3

4 neighbors recently requested a quote
Avatar for Duct Doctor of Tri Cities
Duct Doctor of Tri Cities
4.7(
125
)
Air Ducts & Vents - Clean

Serving Greeneville, TN and surrounding areas

Approved

In business since 2000

Free estimates

Credit card accepted

"Mike and Jared are very professional and knowledgeable about cleaning the HVAC. Our old house had lots of coal dust from years ago and they were able to blast it out in just a few hours. Air quality improved 100%. Would highly recommend them and hire them again without a doubt."
Dust Doctor of Tri Cities
38 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Insta Cooling & Heating LLC
Insta Cooling & Heating LLC
5.0(
4
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+8 more

Serving Greeneville, TN and surrounding areas

Approved

Emergency services offered

Warranties offered

Small jobs welcome

"We had Insta Heating & Cooling come out for preventative maintenance on our HVAC units, and we couldn’t have been more pleased with the experience. Brandon was extremely professional, knowledgeable, and took the time to thoroughly explain everything they were checking and any recommendations they had. I really appreciated how informative the visit was without feeling pressured into unnecessary services, and how they were upfront on their prices. It’s clear they take pride in their work and genuinely care about making sure their customers understand and feel confident in their HVAC system. We’ll definitely be using Insta Heating & Cooling for our future heating and cooling needs."
Installation
Installation
Installation
Installation
HVAC Maintenance Services

+7

6 neighbors recently requested a quote
Avatar for Warfield
Warfield
New to Angi
Air Ducts & Vents - Clean

Serving Greeneville, TN and surrounding areas

Approved

Small jobs welcome

My name is Amber I have 5 kids and 8 grandkids I have been cleaning houses for a while and I also work at the Hampton inn hotel for almost a year in housekeeping. I also don't mind animals if you have them. I do have my own cleaning stuff to help get the job done. email me [email protected]

Avatar for Sparks and shine
Sparks and shine
New to Angi
Air Ducts & Vents - Clean

Serving Greeneville, TN and surrounding areas

Approved

4232762749 Hi! I?m the owner of Sparks and Shine Cleaning. I have years of experience providing reliable, detailed cleaning services for homes, vacation rentals, and move-out properties. I take pride in helping people come home to a clean, comfortable space without the stress of having to do it all themselves.\n\nI understand that every home is different, so I customize my services to fit your needs ? whether you need a regular cleaning, a deep clean, a move-in/move-out clean, or help getting your home ready for guests.\n\nI?m dependable, hardworking, and treat every home with the same care and respect I would want in my own. My goal is to make your life easier by providing quality work you can count on. Please reach out to me at [email protected] so I can give you my number.

Avatar for Appalachian Airworks
Appalachian Airworks
New to Angi
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - InstallDucts & Vents - Install or Replace+2 more

Serving Greeneville, TN and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

Appalachian Airworks is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

HVAC install
HVAC install
HVAC install
HVAC install
25 neighbors recently requested a quote
All Star Property Maintenance
New to Angi
Central A/C - Service or RepairElectric Furnace / Forced Air Heating System - RepairGas Furnace / Forced Air Heating System - Repair

Serving Greeneville, TN and surrounding areas

Approved

In business since 2007

Free estimates

Credit card accepted

All Star Property Maintenance is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Response time5 hrs
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Heating and Air Conditioning FAQs, answered by experts

While "dry" mode on your AC can help reduce humidity levels to some extent, it may not be as effective as a dedicated dehumidifier, especially in areas with extremely high humidity or larger spaces. Dehumidifiers are specifically designed to remove moisture from the air more efficiently, making them a better choice for tackling persistent humidity issues.

No, a furnace is not the same thing as an AC, or air conditioner, but these are both parts of an HVAC system. They both use air ducts to transport cool or hot air around your home to achieve a comfortable temperature set by your thermostat. An AC runs on electricity, while a furnace can use different fuel sources.

The DOE is phasing out AC units with SEER ratings that fall below 14 or 15. The exact minimum rating depends on your region. In the northern United States, new ACs must have a minimum SEER rating of 14, though you can still buy and install older systems as long as they were compliant when they were manufactured. In the southern and southwestern United States, you cannot buy or install older air conditioners with lower SEER ratings. The minimum rating is between 14.5 and 15, depending on the power of the unit.

One of the first signs of mold in an air conditioner is a musty smell. You're likely to notice the smell when the unit runs, from the air coming out of the vents or the unit itself. You may also be able to see mold growing on the unit, such as near the condenser coils or by the fan. In some cases, there may be visible mold by the vents.

You may never need an AC recharge if there are no leaks. However, if your AC unit has a leak that cannot be patched appropriately, you’ll need an AC recharge every time the freon level drops low enough that it disrupts your system—this could be once every two to three years. It all depends on the size and frequency of the leak.

The Greeneville, TN 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.