Serving House Springs, MO and surrounding areas
Approved
In business since 2003
Free estimates
Emergency services offered
"A-ok! Dunn OneHour HVAC is always top notch!"
Serving House Springs, MO and surrounding areas
Approved
In business since 2014
Free estimates
Emergency services offered
"The owner provided me with detailed information about the equipment and installation of my new furnace/ air conditioner. He was through and did a great job of cleaning up after the project was complete. I highly recommend this company and plan to use them in the future."
Serving House Springs, MO and surrounding areas
Approved
Super Service Award Winner
In business since 2017
Emergency services offered
Warranties offered
"I called, not knowing what was wrong with my air conditioning. They actually gave me a few possibilities, over the phone, one of which turned out to be the Culprit. No charge for the advice, they could have easily rip me off. But didn't. They won't give u the run around, and tell you somethings wrong when it's actually not."
+10
Serving House Springs, 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.
Serving House Springs, 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.
Serving House Springs, MO and surrounding areas
Approved
In business since 1980
Free estimates
Emergency services offered
"Great! Jon came (on a Sunday), and diagnosed the faulty fan very quickly. It did have to be ordered, but he returned as soon as it was received. Jon installed it professionally, quickly, and very neatly. I highly recommend him. He's been at this for a long time and it shows. He did great work. Totally satisfied with All-American and Jon"
Serving House Springs, MO and surrounding areas
Approved
In business since 2018
Free estimates
Credit card accepted
"Adam did the work in my home today. There were three heating and air-conditioning units which were checked out and some which needed some repair. I highly recommend him. Reasonable cost excellent knowledge and willing to take the time to do an excellent job."
Serving House Springs, MO and surrounding areas
Approved
In business since 2020
Credit card accepted
Customers say: Quick response
"Phillip was very professional and well educated on what was causing my furnace not to produce heat. He was there literally for 15 minutes. Highly recommend. Thank you again Phillip for the great service."
+17
Serving House Springs, MO and surrounding areas
Approved
In business since 2025
Emergency services offered
Credit card accepted
"Austin was communicative, professional, and personable. He diagnosed and fixed my problem within an hour and also showed me how to clean off my outside unit to keep it running smoothly going forward. Would definitely hire him again."
Serving House Springs, MO and surrounding areas
Approved
Hello, My Name is Johnathan Steele, Owner Operator of Show-Me Comfort Heating and Air Conditioning. I started my company with the intent to help and show transparency to my customers and to educate them to the best of my abilities on the system that keeps their Home Comfortable. Most Companies will come in to a house fix the issue then leave… That’s where we try and separate ourselves by finding the culprit, educating our customers on why it happened and how to prevent future problems. \n\nWe at Show-Me Comfort Heating and Air Conditioning take pride in our work, and if we wouldn’t do it in our house we wouldn’t do it to yours.
Most professional HVAC technicians require two to three hours to complete an expansion valve replacement. The timeframe depends on your unit's accessibility and whether additional repairs are needed. The process involves recovering refrigerant, removing the old valve, installing the new component, and recharging the system. Scheduling during less busy seasons may result in more convenient appointment times.
Operating your air conditioner with a malfunctioning expansion valve isn't advisable. Continuing to run the system could potentially damage other components, particularly your compressor, which is significantly more expensive to replace. If you notice performance issues like inconsistent cooling or unusual noises, it's best to have your system inspected before continuing regular use.
Expansion valves don't have a standard replacement schedule, as their longevity depends on system usage, maintenance frequency, and environmental factors. Regular professional maintenance helps identify potential valve issues before they cause system failure. Having your HVAC system serviced annually allows technicians to monitor component condition and recommend preventative replacements when necessary.
Refrigerant leaks require prompt professional attention. If your expansion valve is leaking, you'll likely notice reduced cooling performance and possibly hear hissing sounds near the unit. Addressing leaks quickly prevents further system inefficiency and avoids the environmental impact of released refrigerant. Your HVAC technician will need to repair the leak and recharge the system with the proper refrigerant type and amount.
Because many AC issues present similar symptoms, professional diagnosis is recommended. Problems like inadequate cooling, inconsistent temperatures, or strange noises could indicate expansion valve issues, but might also stem from refrigerant leaks, electrical problems, or airflow restrictions. A qualified HVAC technician has the tools and expertise to accurately identify the root cause and recommend appropriate repairs.
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