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TRUSTED BY WELLSTON, MO HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon692
    Verified heating and air conditioning services reviews

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

*The Angi rating for Heating And Air Conditioning Service companies in Wellston, 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 Wellston, 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 May 31, 2026

Find Heating and air conditioning pros in Wellston

Avatar for SmartHouse Heating & Cooling
SmartHouse Heating & Cooling
4.7(
593
)

Serving Wellston, MO and surrounding areas

Approved

In business since 1947

Free estimates

Emergency services offered

"The technicians are so nice and helpful, professional, and punctual. They've maintained my hvac for the three years I've lived in this house and all runs smoothly."
Old boiler being removed
A Manual-J load calculation is performed to determine the precise amount of heating and cooling needed for each space.
Installing a Mitsubishi Hyper Heat Mini Split System to Heat and Cool this Sunroom Addition.
Mitsubishi outdoor unit installed on rooftop to heat and cool 3rd floor of this St. Louis City home.
Daikin FIT Heat Pump Installed in University City Home

+106

Response time3 days
5 neighbors recently requested a quote
Recommended by91%of homeowners
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Avatar for Anton's Plumbing, Heating/Cooling & Energy Experts
Anton's Plumbing, Heating/Cooling & Energy Experts
4.7(
513
)

Serving Wellston, MO and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1979

Free estimates

Emergency services offered

"They are always up front about my HVAC needs and explain things in detail before we agree for them to continue their work/recommendations."
Additional Photos
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+18

Response time1 day
Response rate86%
16 neighbors recently requested a quote
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Avatar for Hosack Plumbing Heating & Cooling
Hosack Plumbing Heating & Cooling
4.8(
344
)

Serving Wellston, MO and surrounding areas

Approved

In business since 2009

Warranties offered

Credit card accepted

"They were professional from the phone call to the installation. He had everything he needed to replace the hot water heater and proceeded. I would definitely recommend Hosack Plumbing."
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+2

Response time6 days
10 neighbors recently requested a quote
Recommended by93%of homeowners
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Avatar for Redbird HVAC LLC
Redbird HVAC LLC
4.9(
57
)

Serving Wellston, MO and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"I finally found an HVAC technician that really understands HVAC. DT Restoration will be my service company from now on. Thank you Home Advisor."
Carrier Furnace
1 neighbors recently requested a quote
Recommended by98%of homeowners
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Avatar for Hoffmann Brothers
Hoffmann Brothers
4.5(
43
)

Serving Wellston, MO and surrounding areas

Approved

In business since 2000

Emergency services offered

Credit card accepted

"Had new hvac, furnace, and hwh installed. Furnace had a couple of air leaks between a coil and furnace which I fixed myself. Hvac was spot on. Hwh failed first inspection, but was corrected in same day. For the premium price paid, these issues should not happen. Quality 4.5 because of these issues, same goes for value. Customer service is very good. They are very professional, work looks very good, clean worksite afterwards. I would recommend, but don't think about negotiating price with them. Their labor is very high."
Installation
Installation
Heat Pump
Heat Pump
Furnace

+14

1 neighbors recently requested a quote
Recommended by97%of homeowners
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Avatar for All American Appliance Service Inc
All American Appliance Service Inc
4.5(
528
)

Serving Wellston, MO and surrounding areas

Approved

In business since 1980

Free estimates

Emergency services offered

"Service person arrived on time.  Professional and friendly.  Returned to the shop for parts, and returned within the hour.  Repairs were completed within the next hour.  Fridge works great now.
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Additional Photos
Response time2 days
2 neighbors recently requested a quote
Recommended by89%of homeowners
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Avatar for Healthy Home Pest Control & Services
Healthy Home Pest Control & Services
4.4(
385
)

Serving Wellston, MO and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Great company to do business with. The only complaint I have is that my air filter on my heater was left so dirty that the lack of air flow shut my heater down overnight leaving my home very cold by morning"
New Trucks
Duct Cleaning Trailers
New Sign
Response time9 hrs
Response rate91%
493 neighbors recently requested a quote
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Showing 1-10 of 376
Heating and Air Conditioning questions, answered by experts

Yes, you can potentially save $60 to $200 by handling your own air conditioner capacitor installation. However, capacitor replacement comes with the risk of electric shock. Only attempt this if you have the knowledge and protective gear to carry it out safely. Otherwise, we recommend hiring an HVAC pro with the experience to properly diagnose the issue and avoid damaging other parts of your AC unit.

To find a reputable HVAC company, start by researching providers in your area. Look for companies with mostly positive online reviews and check the Better Business Bureau’s website for customer complaints. Next, verify their credentials. Rule out any companies that aren’t licensed, as this is a requirement in some states and municipalities, and confirm they are insured. Once you have a shortlist, contact each professional to ask key questions: How many years of experience do you have? Do you hold any third-party certifications? Do you have experience working on my specific type of HVAC system or brand? Can you provide references? What is your per-hour pricing? Do you offer maintenance contracts for ongoing savings? Do you provide a warranty for your work?

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.

This depends on the extent of the freezing. Some ACs only need an hour or two to thaw out, but others may need a full day to completely unfreeze. Once you turn off the system to let it unfreeze, check it periodically to make sure the drain pan doesn’t overflow. When you turn the system back on, keep an eye on it to ensure it doesn’t start freezing again.

If left untreated, a frozen AC unit can lead to costly damage, especially to the compressor and evaporator coils. When ice forms on the evaporator coils, they become brittle and more susceptible to breaking. Plus, a freeze makes your AC system much less efficient, which means it's wasting energy and costing you more in your monthly energy bills.

The Wellston, 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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