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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 Lemay, 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!"
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31 neighbors recently requested a quote
Recommended by90%of homeowners
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 Lemay, MO and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Andrew arrived on time, quickly inspected the furnace and explained clearly the situation, with options. Repairs were done quickly and to my satisfaction. Cost was reasonable and I would recommend to anyone needed furnace or AC repairs."
17 Seer 2 stage condensing unit.
Response time11 hrs
2 neighbors recently requested a quote
Recommended by98%of homeowners
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 Lemay, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Emergency services offered

Warranties offered

"Sam was great. Had a extremely dirty system that would not function correctly or blow cold air. Had High Ridge Heating and Cooling here as he has done work before for me and parents. He took one look and stated we needed to replace entire a/c furnace unit for $3100. Told us it would cost about the same to clean. No way I could afford that so went on Angie's List to find someone and read Sam's review's. He came out and told me the cost at $425 to clean. Which was fantastic. He spent about 2 1/2 to 3 hours and did a wonderful job. Ended up paying total $625 once he was done and asked me before doing anything additional that would cost more. Also since our unit didn't have valves on system to reuse our refrigerant he had to put new in which was part of price increase. Sam, thanks so mich for not trying to take advantage."
A/C replacement
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+10

5 neighbors recently requested a quote
Recommended by93%of homeowners
Belking
5.0(
27
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Lemay, 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
Perfect Air
4.7(
6
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Lemay, 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
Avatar for All American Appliance Service Inc
All American Appliance Service Inc
4.5(
528
)
Central A/C - Service or Repair

Serving Lemay, MO and surrounding areas

Approved

In business since 1980

Free estimates

Emergency services offered

"I had a very good experience with All-American. I learned on a Wednesday evening that my fridge was not cooling. I found All-American on Angie's List Thursday morning, and they were able to get to me that afternoon. The technician assessed the problem, went out to acquire the part, and repaired my fridge that after noon. My only problem is that I did not receive an itemized receipt, which I think is important. I would have liked to have known the cost of the part and the cost of labor. I am a stickler for that because I think women get taken advantage of, but I was working and my sister received him; so I didn't see the receipt until I returned home late evening. Otherwise, I am a very satisfied customer."
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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 Lemay, 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

If you’re planning an AC replacement, choosing an AC with a higher SEER rating may save you money in the long run. Tax credits could cover as much as 30% of the job, and you’ll notice smaller utility bills (particularly if you live in a hot climate where you need to constantly run the AC). Generally, you can expect to pay between $350 and $1,500 for each SEER rating increase. Weigh the cost against your typical utility bill to figure out what’s worth it to you.

Window AC units use a fair amount of electricity, but significantly less than central AC systems. Because they are more energy-efficient for cooling individual rooms or small spaces, their usage is comparatively low. On average, a window AC unit consumes between 500 and 1,400 watts, while a central AC system uses over 3,500 watts—meaning a window unit uses about one-third of the energy. This typically translates to a monthly running cost of $15 to $40, although this can vary depending on external factors.

It depends on how fast an HVAC technician can resolve the issue. First, if there's a refrigerant leak, you’ll want to keep small children and pets out of the house. Next, you’ll want to turn off the AC unit to ensure no more freon enters your home. Finally, you’ll need an AC technician pro to come to your home and fix the leak immediately. Ultimately, it’s best to leave your home if you discover a freon leak—the risk of exposure is very high, and it’s not worth risking your health to stay.

Most AC repair technicians will take between two and six hours to carry out repairs, depending on the work needed and the accessibility of the unit. For example, recharging refrigerant lines should take one to two hours to service, while replacing a compressor, blower fan, or other major components can take five to eight hours. You can ask your AC repair technician how long they expect the job to take, but just in case, you should plan on being home and available for most of the day.

At a minimum, an HVAC system should be serviced once per year. However, a twice-a-year service schedule—once in the spring for the cooling system and once in the fall for the heating system—is often recommended, especially for older systems, heat pumps, or in climates with extreme temperatures. Regular service, which includes inspection, cleaning, and maintenance, ensures the system runs efficiently, helps prevent costly breakdowns during peak seasons, and can extend the unit's lifespan. You can also schedule a service if you notice issues like poor performance or strange noises.

The Lemay, MO homeowners’ guide to air conditioning services

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