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Verified Reviews for Air Conditioning pros in Arnold, MO

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

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

Last update on September 10, 2025

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Avatar for Dunn Heating Air Conditioning and Plumbing
Dunn Heating Air Conditioning and Plumbing
4.7(
274
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Arnold, MO and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"I recently had a positive experience with Dunn Service regarding boiler issues, and I wanted to share my thoughts. The technician arrived promptly at the scheduled time and approached their tasks with expertise and precision, ensuring that all problems were thoroughly addressed. The pricing for their professional services was reasonable. Overall, based on my experience with Dunn Service—characterized by politeness, professionalism, and fair pricing—I would highly recommend their services to anyone facing heating and air conditioning issues."
Additional Photos
Response time2 days
27 neighbors recently requested a quote
Recommended by89%of homeowners
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Avatar for Mechanical Climate Solutions, LLC
Mechanical Climate Solutions, LLC
4.9(
66
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Arnold, MO and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"We got a call from MCS to schedule an appointment as we needed soon. The tech came as promised, diagnosed AC unit, did the repair, and fixed the AC unit."
17 Seer 2 stage condensing unit.
Response time11 hrs
2 neighbors recently requested a quote
Recommended by98%of homeowners
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Avatar for Liberty Heating & Cooling
Liberty Heating & Cooling
4.8(
46
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Install - For Business+1 more

Serving Arnold, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Emergency services offered

Warranties offered

"Great job with AC repair!"
A/C replacement
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+10

5 neighbors recently requested a quote
Recommended by93%of homeowners
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Avatar for Comfortable Carla's, LLC
Comfortable Carla's, LLC
5.0(
23
)
Central A/C - InstallCentral A/C - Service or Repair

Serving Arnold, MO and surrounding areas

Approved

In business since 1954

Free estimates

Emergency services offered

"They came out and cleaned the outside unit. The a/c is doing a better job keeping up with this heat."
Double System Install
Double System Install
Double System Install
Furnace Replacement
Furnace Replacement

+1

Response time4 hrs
Response rate100%
75 neighbors recently requested a quote
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Avatar for Froggy's Heating and Air, LLC
Froggy's Heating and Air, LLC
4.4(
91
)
Central A/C - Service or Repair

Serving Arnold, MO and surrounding areas

Approved

In business since 2006

Free estimates

Credit card accepted

"Great guy and good service had me fixed up went out of his way to get ac going."
Heating & Cooling 1
Heating & Cooling 1
Heating & Cooling 1
Response time11 hrs
3 neighbors recently requested a quote
Recommended by92%of homeowners
Request Quote
Perfect Air
4.7(
6
)
Central A/C - InstallCentral A/C - Service or RepairCentral A/C - Install - For Business+3 more

Serving Arnold, MO and surrounding areas

Approved

In business since 1982

Emergency services offered

Warranties offered

Founded in 1982. Team members that are drug tested and background checked insuring that the people in your home are safe. We specialize in repairing and replacing residential heating and air conditioning systems. "Fixed Right or It's Free"\nTechs available Sat & Sun call for appointment.

2 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Hoffmann Brothers
Hoffmann Brothers
4.5(
43
)
Central A/C - Service or Repair

Serving Arnold, MO and surrounding areas

Approved

In business since 2000

Emergency services offered

Credit card accepted

"They were on time, efficient. Quality was excellent with a couple of hiccups, which they resolved the same when it failed inspection on hwh. I fixed furnace air leak myself with metal tape."
Installation
Installation
Heat Pump
Heat Pump
Furnace

+14

9 neighbors recently requested a quote
Recommended by97%of homeowners
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Avatar for Hively Home Comfort LLC
Hively Home Comfort LLC
4.8(
47
)
Central A/C - Service or Repair

Serving Arnold, MO and surrounding areas

Approved

In business since 2017

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.

3 neighbors recently requested a quote
Recommended by65%of homeowners
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Avatar for All American Appliance Service Inc
All American Appliance Service Inc
4.5(
531
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Arnold, MO and surrounding areas

Approved

In business since 1980

Free estimates

Emergency services offered

"Logan was polite, & respectful completed the job in a timely manner. Cleaned up any mess that was made. I will definitely request Logan again for any additional appliance repair I may need."
Additional Photos
Response time2 days
4 neighbors recently requested a quote
Recommended by89%of homeowners
Request Quote
Adams Air Conditioning & Heating, LLC
4.5(
9
)
Central A/C - Service or Repair

Serving Arnold, MO and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

Adams Air Conditioning & Heating LLC has over 30 years professional experience. We can service any AC unit and have you up and running. servicing the St. Louis area, we take pride in always being prompt, punctual and professional with every project that we complete. Free estimates, please call anytime - offer emergency service. \n

Response time4 hrs
Response rate89%
1 neighbors recently requested a quote
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Air Conditioning questions, answered by experts

The best way to save money on HVAC repairs is by regularly having your system inspected and maintained. This can prevent bigger problems and costly repairs and replacements in the future. It’s also smart to buy quality equipment and hire companies that provide warranties on equipment and labor. If you need repairs, you may be able to save money by cashing in on rebates and incentives or keeping the area around your HVAC unit clear to shorten the time your contractor needs to spend in your home.

Yes, mini-split or ductless AC systems add value to a home and do not devalue it. They are an attractive feature for potential buyers, especially in older homes without existing ductwork, as they provide a practical air conditioning solution without the significant expense and hassle of installing traditional ducts. Ductless systems also eliminate issues associated with conventional ductwork, such as noise and the potential for pests. Furthermore, homeowners value energy-efficient solutions, and mini-splits offer high efficiency for both heating and cooling, plus zoned temperature control. This leads to lower energy consumption and reduced electric bills, which is a major selling point.

A new HVAC system can increase your home's value by about 5% to 7%, which can translate to an added value of $2,500 to $3,000. The return on investment (ROI) can be around 30%, especially if you upgrade the entire system, including ductwork and insulation. Adding modern features like a smart thermostat can further increase your home’s value by making the heating and cooling systems more efficient and convenient. However, since a new unit can cost $10,000 or more to install, it's important to weigh the upfront cost against the potential increase in home value. For a specific assessment, it's best to consult a local AC installer.

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.

Troubleshooting common issues with your AC often sheds light on a problem with the compressor. Signs that you need to replace a bad compressor include your AC blowing warm air, short cycling (turning on and off), making strange noises, and blowing less air overall. Since these problems can stem from several areas of your AC, always call a local AC repair team to confirm it's the compressor.

The Arnold, MO homeowners’ guide to air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.

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