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TRUSTED BY HERCULANEUM, MO HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon81
    Verified heating and air conditioning services reviews

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

*The Angi rating for Heating And Air Conditioning Service companies in Herculaneum, 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 Herculaneum, 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 July 19, 2026

Find Heating and air conditioning pros in Herculaneum

Avatar for Liberty Heating & Cooling
Liberty Heating & Cooling
4.8(
46
)

Serving Herculaneum, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Emergency services offered

Warranties offered

"Liberty did a fantastic job identifying and rectifying airflow problems with our existing Hvac system that was installed less than two years ago by another company. They were punctual, responsive and incredibly knowledgeable. I highly recommend them."
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 Mechanical Climate Solutions, LLC
Mechanical Climate Solutions, LLC
4.9(
66
)

Serving Herculaneum, MO and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Customer service was very helpful, tech was able to quickly diagnose the problem and solve it. We signed up for their preventative service HVAC."
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 Comfortable Carla's, LLC
Comfortable Carla's, LLC
5.0(
19
)

Serving Herculaneum, MO and surrounding areas

Approved

In business since 1954

Free estimates

Emergency services offered

"I’ve used this company twice. My husband has a medical condition that is affected by heat. The first time the air conditioner wasn’t working they made every effort to assess the problem immediately when I explained the medical condition. At the time they corrected the problem I was advised the system was probably 20 years old and we may have to consider a new system soon. The second time I contacted Comfortable Carla’s was about 4-6 weeks later when the system wasn’t working again. This lead to a system replacement. I was provided with different options, my questions were answered and the installation was completed as quickly as possible, especially in view of my husband’s medical issue. The staff was was professional, efficient and kept me apprised all throughout the process. I highly recommend this company."
Double System Install
Double System Install
Double System Install
Furnace Replacement
Furnace Replacement

+1

Response time4 hrs
Response rate100%
35 neighbors recently requested a quote
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Avatar for All American Appliance Service Inc
All American Appliance Service Inc
4.5(
528
)

Serving Herculaneum, MO and surrounding areas

Approved

In business since 1980

Free estimates

Emergency services offered

"The service tech was prompt, friendly, and helpful. They identified the issue with two fridges, and they recommended replacement or adjustment rather than costly unnecessary repairs."
Additional Photos
Response time2 days
5 neighbors recently requested a quote
Recommended by89%of homeowners
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Perfect Air
4.7(
6
)

Serving Herculaneum, 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.

1 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Local Air Duct Pros
Local Air Duct Pros
4.5(
15
)

Serving Herculaneum, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Credit card accepted

"Affordable, professional and quick! Would definitely use their services again."
Response time7 hrs
Response rate99%
32 neighbors recently requested a quote
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Avatar for Dryer Vent Rescue
Dryer Vent Rescue
5.0(
12
)

Serving Herculaneum, MO and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"They did a fabulous job in cleaning all the vents in the house. The entire crew was very professional and treated our home with care. Even our dog loved them! We highly recommend using them!"
Imperial MO Air Duct
Imperial MO Air Duct
Imperial MO Air Duct
Imperial MO Air Duct
Imperial MO Air Duct

+21

Response time8 hrs
Response rate100%
2 neighbors recently requested a quote
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Heating and Air Conditioning questions, answered by experts

It depends on the size of the space you’re cooling down. If you’re looking for the most affordable way to cool an entire house over a long period of time, then central air will be more cost-effective. But when it comes to cooling down a couple of rooms or one floor, a window unit may be the cheaper option, with both a lower cost to install and less energy used to run.

The average cost to replace or install a new HVAC system is around $7,500. However, the price can range from $5,000 to $12,500, depending on factors like the size of your home, the type and brand of the unit, and your specific heating and cooling needs. If you only need to replace certain components, the cost will be lower; for example, a new AC unit can cost between $2,200 and $5,500, while a new furnace costs $3,200 to $6,000. If additional work like new ductwork is required, the total cost could be as high as $22,000. It's best to contact a local HVAC company for an accurate quote.

Most HVAC surge protectors last about three to five years, depending on how often your home experiences blackouts or brownouts. If your unit is susceptible to more frequent electrical surges, consider replacing your surge protector every two years. Consult your HVAC professional to determine when and how often to replace your HVAC surge protectors.

For washable or electrostatic air conditioner filters, you can soak and rinse them with water. If you rinse the filter with water, make sure to use a faucet, shower head, or garden hose with a gentle water pressure setting, as strong water pressure could damage the filter.

But for disposable filters, water could ruin the filter, even allowing mold to grow in the filter. Instead, these filters should be replaced.

Whether an HVAC damper should be open or closed depends on the season, the zone it controls, and the temperature in that zone. In the summer, open upstairs dampers and close lower-level dampers to get the most efficient cooling possible. In the winter, do the opposite. Cool air will naturally flow down to lower levels, while warm air will rise. This keeps your system from working harder and helps prevent common AC problems.

The Herculaneum, 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.

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