Serving New Prague, MN and surrounding areas
Approved
Free estimates
Emergency services offered
Warranties offered
One Hour Heating and Air Conditioning is your premier provider for heating and air conditioning in Southern Minnesota. If you are south of the river, we are your people!
Serving New Prague, MN and surrounding areas
Approved
In business since 2015
Free estimates
Emergency services offered
"$150 to put up my TV and he did a great job with hiding the cords behind the drywall. 10/10 recommend!"
+113
Serving New Prague, MN and surrounding areas
Approved
Super Service Award Winner
In business since 2003
Free estimates
Warranties offered
"Andrew was wonderful! Very professional. He repaired the ceiling so well you can't see where the damage was in the first place. He cleaned up after each visit and left no trace of dust/debris. His quote was accurate and very reasonable. I would use him again for any job around the house and will share his information with my neighbors. He was that good."
+2
Serving New Prague, MN and surrounding areas
Approved
In business since 2022
Free estimates
Credit card accepted
"I recently had Prolific Mechanical install a new air conditioning system, and I couldn't be happier with the results. The young man who completed the installation was professional, courteous, and extremely knowledgeable. He took pride in his work, kept everything clean, and made sure the installation was done correctly from start to finish. The new system runs flawlessly and keeps the house comfortable even on the hottest days. I highly recommend Prolific Mechanical to anyone looking for quality workmanship and dependable HVAC service."
Serving New Prague, MN and surrounding areas
Approved
In business since 2020
Free estimates
Credit card accepted
"If you're looking for honest, dependable HVAC service, I can't recommend Blake enough! My central air unit was leaking and missing some hoses, and he had it fixed up in no time. He was professional, efficient, and took the time to explain everything to me. In a small town, word of mouth means everything, and Blake is the kind of person you want to support hardworking, trustworthy, and genuinely cares about his customers. If you need heating or air conditioning work done, give him a call. You won't be disappointed!"
Serving New Prague, MN and surrounding areas
Approved
In business since 2014
Free estimates
Emergency services offered
"Chad is a great worker, great customer service. I had to call him super early in the morning, he answered his phone. he talked me though what I needed to do for my gas line to be shut off until he could come over."
+3
Serving New Prague, MN and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
I pride myself on my professionalism, as well as my ability to complete every job to the homeowner's total satisfaction. I never leave a job unfinished, or a homeowner not 100% satisfied with my level of service - Call today!
+5
Serving New Prague, MN and surrounding areas
In business since 2007
Free estimates
Emergency services offered
"In the middle of the Summer my a/c decided not to work and they were very accommodating coming out quickly and fixing everything right away. They did an excellent job! I will definitely recommend and use them, again."
Serving New Prague, MN and surrounding areas
In business since 1956
Free estimates
Emergency services offered
"We recently purchased a new home furnace and central air through Total Comfort Heating/Home Depot to replace our 47 year old Lennox. Total Comfort provided great communication as to the process and scheduling of the installation. The Techs notified us when they were on their way for the installation which was one day before a serious snow storm was coming through. Upon arrival they were a little set back by the age and installation of the existing furnace. They eagerly jumped on the task which was being done in conjunction with gas conversion from propane to natural gas and a new hot water heater which required running a new gas line to the exterior of the house. They worked non-stop and by the end of the day they completed everything with the exception of connecting up the air conditioner. I believe the techs went far and beyond there scope of work including bringing our hot water up to code, They provided advice and the know how to improve the air in our home with this new machine which I have completed with a noticeable difference. I highly recommend this company and will be utilizing their services in the future"
+15
Serving New Prague, MN and surrounding areas
Free estimates
Emergency services offered
Credit card accepted
"I can tell the difference in my air conditioning"
+39
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.
From average costs to expert advice, get all the answers you need to get your job done.
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