
Serving Hampton, MN and surrounding areas
Approved
Super Service Award Winner
In business since 1987
Free estimates
Emergency services offered
"New Furnace and Air - Friendly knowledgeable installers (Mick and Kevin) - would hire again."






Serving Hampton, MN and surrounding areas
Approved
Super Service Award Winner
In business since 1987
Free estimates
Emergency services offered
"New Furnace and Air - Friendly knowledgeable installers (Mick and Kevin) - would hire again."





Serving Hampton, MN and surrounding areas
Approved
In business since 2023
Free estimates
Credit card accepted
Fox Heating and Air Conditioning LLC is committed to excellence in every aspect of our\nbusiness. We uphold a standard of integrity bound by fairness, honesty,\nand personal responsibility. Our distinction is the quality of service\nwe bring to our customers. Accurate knowledge of\nour trade combined with ability is what makes us true professionals.\nAbove all, we are watchful of our customers' interests and make their\nconcerns the basis of our business.\n


Serving Hampton, 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 Hampton, MN and surrounding areas
Approved
In business since 2015
Free estimates
Emergency services offered
"Stacy cleaned our dryer vent as asked, and then installed 2 dimmers on an electrical switch as an added service. He communicated efficiently, was on time, flexible, honest, and friendly. We would hire him again."





+113

Serving Hampton, MN and surrounding areas
Approved
Super Service Award Winner
In business since 2021
Free estimates
Emergency services offered
"I had Cam out at my house and he was great! Answered all of my questions that I had for him, including giving me suggestions on certain things around my place. He was quick and clean with his work, so good that we already had him back on the schedule to come back out for some more work. Thanks Cam!"





+8

Serving Hampton, MN and surrounding areas
Approved
In business since 2011
Free estimates
Emergency services offered
"This is the fourth time I have hired Chuck, and have already arranged to have him do more work in the next couple weeks. Chuck is excellent. Is knowledge and professional. Is good at figuring out a way to fix problems. Highly recommend!!!"





Serving Hampton, MN and surrounding areas
Approved
"Was amazing! Diagnosed the problem very quickly, was honest with best case and worst case scenarios, and was thankfully able to fix the problem! Highly recommend!"

Serving Hampton, 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 Hampton, MN and surrounding areas
Approved
Small jobs welcome
I started this lawn care job so me and my daughter wouldn't have to be homeless Not going to lie it's been hard but my daughter tells me that she's so proud of me for not giving up so if you need a one man crew I'm your guy

Serving Hampton, MN and surrounding areas
In business since 2007
Free estimates
Emergency services offered
"Great. I was able to call the owner directly and he answered all my questions and went above and beyond to make sure that we had cool air throughout the house. I will use them for all my furnace and AC issues in the future."
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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