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Avatar for SmartHouse Heating & Cooling
SmartHouse Heating & Cooling
4.7(
593
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Wellston, MO and surrounding areas

Approved

In business since 1947

Free estimates

Emergency services offered

"We hired Smarthome to insulate our attic. They were not the lowest bid, but their expertise, particularly about the various insulation options, convinced us to go with them. And I am so very glad that we did. Not only did they do everything we expected in terms of insulating our attic, they noticed that the duct work in our air conditioning system had not been properly sealed. We had been wrestling with the unit's inability to cool our house for years, and our regular HVAC provider told us that this was the best the system could do. In fairness, we have an old house and a complex air conditioning set up. Smarthouse both diagnosed the problem and undertook the necessary fixes for a very reasonable price. As a result our house is markedly cooler and our electrical bill has come down a bit. This is a great company. They know what they're doing and they genuinely seem to care."
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

4 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Dunn Heating Air Conditioning and Plumbing
Dunn Heating Air Conditioning and Plumbing
4.7(
273
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace

Serving Wellston, MO and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"Excellent! I love JT Dunn Heating and Cooling. We selected them out of 5 different contractors to install our brand new furnace and conditioner in 2017 and we hadn't had a problem since. We just had a 3 year tune-up and nothing was wrong and the ac is quietly humming away outside. Thanks to employee Robert Fitzgerald for coming out today and doing a awesome job and keeping us as customers!"
Additional Photos
31 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Redbird HVAC LLC
Redbird HVAC LLC
4.9(
57
)
Central A/C - Install

Serving Wellston, MO and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Jedediah was very professional. The price to replace my HVAC was good and the installation of my new unit was great. I would recommend DT Restoration for their heating & cooling services"
Carrier Furnace
2 neighbors recently requested a quote
Recommended by98%of homeowners
Belking
5.0(
27
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Wellston, MO and surrounding areas

Approved

In business since 1993

Free estimates

Emergency services offered

"Bernie is incredible- no, really. I could not have asked for a better technician today. After a month of no A/C and getting the run around with our warranty company (besides the point), Bernie showed up and saved the day. He took the time to really explain the problem, the steps he took to fix it, and some helpful tips for the future. After repairing our AC unit he walked around the house upstairs and down in the basement to show me how to control the force of air coming out of the vents. He is so friendly and so great. We will definitely reach out to him again in the future if we ever have issues. Thank you Bernie."
Response time8 hrs
Recommended by80%of homeowners
McKenny Services
4.9(
38
)
Central A/C - Service or Repair

Serving Wellston, MO and surrounding areas

Approved

In business since 2010

Credit card accepted

Customers say: Quick response

"Terrell called right away and was at my home very short order. 30 minutes later my AC was as good as new (well at least as good as a nearly 20 yo machine can be) and the house was back in cool mode. Highly recommended, very fair price and if needed he will be my first call."
Response time4 hrs
Response rate92%
11 neighbors recently requested a quote
Avatar for All American Appliance Service Inc
All American Appliance Service Inc
4.5(
528
)
Central A/C - Service or Repair

Serving Wellston, MO and surrounding areas

Approved

In business since 1980

Free estimates

Emergency services offered

"Did a great job. Mike the repairman was informative and made sure eveything was working correctly and even caulked the ice maker to make sure it retained the cold air in the correct area."
Additional Photos
3 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Local Air Duct Pros
Local Air Duct Pros
4.5(
15
)
Air Ducts & Vents - Clean

Serving Wellston, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Credit card accepted

"Thank you for your trust! At Local Air Duct Pros we specialize in professional air duct cleaning, dryer vent cleaning, chimney sweep, and attic insulation. Our licensed and insured team is committed to providing top-quality service at fair prices. We appreciate your support and look forward to serving you again!"
Response time10 hrs
35 neighbors recently requested a quote
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Air Conditioning questions, answered by experts

You can protect your air conditioner in the winter by turning off the power at the thermostat and performing routine HVAC maintenance in the spring. Regular maintenance, cleaning, and repair of your AC unit helps protect it and extend its life span. If you have a window AC unit, remove it from the window and store it in a dry place during the winter. Window units cannot withstand freezing temperatures. Keeping them in your window also allows cold air to seep into your home.

Yes, you can clean your air conditioner filter as a temporary fix for cleaning up dirt, but you’ll eventually need to replace it once the dust starts to accumulate. Use a vacuum with a hose attachment to clean your air filter at least once per year or more often if you have pets.

A few drips here and there should not be cause for concern, but if your unit is leaking a large amount of water, then it’s advised that you stop using it until the problem is identified and a solution is determined. The more you use it during a leak, the more issues it will cause.

While it's generally safe to stay in a home with a coolant leak if your home is properly ventilated, it's important to have a professional come out to assess the situation right away. You should evacuate your home if you notice any powerful fumes. Additionally, you should leave your home if you are experiencing headaches or dizziness.

As a general rule, you should have your HVAC system professionally serviced at least once a year, though it's best to follow the manufacturer's specific recommendations. Many experts suggest twice-yearly maintenance: once in the spring for the cooling system and once in the fall for the heating system. This is especially recommended for older units, systems with recurring issues, or heat pumps that provide both heating and cooling. Regular service, which can cost between $100 and $550, keeps the system running efficiently, helps prevent costly future repairs, and saves money on utility bills.

The Wellston, MO homeowners’ guide to air conditioning services

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