Top-rated heating and air conditioning pros.

Best heating and air conditioning pros near Hamilton, MO

Enter your zip and get matched with up to 5 pros

Need a pro for your heating and air conditioning service project in Hamilton, MO?

Select your specific project to find the pro for you.

TRUSTED BY HAMILTON, MO HOMEOWNERS

  • Average homeowner rating star icon5
    Average homeowner rating
  • Verified reviews icon12
    Verified heating and air conditioning services reviews

Verified Reviews for Heating And Air Conditioning Service pros in Hamilton, MO

*The Angi rating for Heating And Air Conditioning Service companies in Hamilton, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Hamilton, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

Last update on December 30, 2025

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

Avatar for Mini Split Guys
Mini Split Guys
5.0(
5
)
Ductless Mini-split A/C - Install or Replace

Serving Hamilton, MO and surrounding areas

Approved

In business since 2024

Free estimates

Warranties offered

"Mini Split Guys and Ben know what they are doing. Great service! Recommend using them for your new installs and service work on mini splits."
Outside unit.
Inside unit.
Outside unit.
Inside unit.
Outside unit.

+4

Response time3 hrs
Response rate100%
Recommended by100%of homeowners
Request Quote
Avatar for Precision Building Contractor
Precision Building Contractor
New to Angi
Radiant Floor Heating System - Install

Serving Hamilton, MO and surrounding areas

Approved

In business since 1999

Free estimates

Offers commercial services

With over 30 years experience in the hydronic radiant heating industry, Precision Building Contractor is your industry expert in and the surrounding areas. We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a family owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today we look forward to working with you!

Response time2 days
Response rate94%
Request Quote
Avatar for Tap Heating & Cooling
Tap Heating & Cooling
4.5(
19
)
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 Hamilton, MO and surrounding areas

In business since 2006

Emergency services offered

Credit card accepted

"no heat, no money came out and did a temp. last time was temp. Called came out. put in a whole new hvac need to call back before turn on ac. They were fantastic. axel jones roscoe edwards. were here at 930 and at about 10to 1 were done and guaranteed heat woudl be back on and cleaned up. perfect."
install
Cage
Installers Van
Additional Photos
Additional Photos

+5

Recommended by94%of homeowners
Request Quote
Avatar for A/C For Less LLC
A/C For Less LLC
5.0(
3
)
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 Hamilton, MO and surrounding areas

In business since 2012

Free estimates

Emergency services offered

"Good. It was kind of a last minute service call but they were very prompt and fit us into their schedule in a timely manner. They were very friendly and got the work done quickly. It was pretty convenient. We've moved since then and plan on using them for our new system as well."
Additional Photos
Additional Photos
Recommended by100%of homeowners
Request Quote
Avatar for Air Scrubbers Air Duct Cleaning LLC
Air Scrubbers Air Duct Cleaning LLC
3.9(
332
)
Air Ducts & Vents - CleanBoiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For Business+48 more

Serving Hamilton, MO and surrounding areas

In business since 2000

Free estimates

Credit card accepted

"Excellent job, professional, considerate of my time.  I already notice less dust bunnies due to my cleaner air.
"
Recommended by77%of homeowners
Request Quote
...
Showing 1-10 of 52
Heating and Air Conditioning FAQs, answered by experts

The cost to add Freon to an AC ranges from $100 to $350. It can increase up to $600 for large AC units requiring much more coolant. The cost also depends on how much refrigerant your unit needs. If only a small amount of Freon leaked out, your cost would be on the lower side. A complete replacement of all the required refrigerant can get expensive.

The size window AC you need depends on the BTU and the size of the room you’re cooling. For a room with 8-foot ceilings, look for about 20 BTU per square foot of the room. For example, a 12-by-12-foot room should have an air conditioner with 2,880 BTU. You can buy something slightly more powerful, but don’t overshoot the BTU for a small room, or you’ll waste energy and have higher bills.

Yes, ventless portable air conditioners exist, and not all standard portable air conditioners must be vented through a window.

Ventless portable units, often called evaporative coolers, do not have exhaust hoses. They use a water reservoir and a cooling pad to add moisture to the air, making it feel cooler. These units work best in dry climates because humid areas cannot absorb much additional moisture.

For standard portable air conditioners that do require venting, a window is not the only option; they can also be vented through a door, wall, or ceiling. However, it is essential to vent these units properly. Running a standard portable AC without venting it is counterproductive because it needs to expel heat to cool the room. Failing to do so will only increase the room's temperature.

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.

To lower humidity quickly, run a dehumidifier or your home's air conditioner or turn on exhaust fans to extract moisture. These methods can quickly and effectively bring your home's humidity levels to a comfortable condition. However, you should consistently practice humidity-reducing tasks to maintain proper indoor humidity levels.

The Hamilton, MO 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.

See all articles