Serving Watertown, WI and surrounding areas
Approved
In business since 1987
Free estimates
Emergency services offered
"Paul was professional, courteous, friendly and thorough. I will have Kettle Moraine Heating and Air Conditioning come again next time I need service for my furnace or air conditioner."
+8
Serving Watertown, WI and surrounding areas
Approved
In business since 1985
Free estimates
Emergency services offered
"This was my first time using Cardinal Heating & Air Conditioning, and it was a fantastic experience. I received a phone call asking me if I wanted to schedule my annual air conditioning check, and when I said yes, the scheduler informed me that she could have a technician come out that day. The technician arrived within a couple of hours and did a thorough check. Everything checked out, and I am ready for the hot summer months."
Serving Watertown, WI and surrounding areas
Approved
In business since 2016
Free estimates
Emergency services offered
"we had a burning smell from our vents. i posted on Facebook and was reached out to by the owner and when i told him i was looking for someone to come ASAP he moved things around in his schedule to get a tech here within an hour of opening. Patrick came and identified the issue within 10 minutes. He had to go get the panel and was completely finished with his work in under an hour. He was friendly, attentive and quick to work. i highly recommend!"
Serving Watertown, WI and surrounding areas
Approved
In business since 2005
Free estimates
Emergency services offered
At Southport Plumbing, Heating & Cooling, we're A+ rated by the BBB. Our technicians are NATE certified to meet national standards of excellence, and we're a Carrier® Factory Authorized Dealer, recently cited as the #1 medium-sized business to work for by the Milwaukee Journal Sentinel. We treat our team well and hold them to high professional standards. Our up front, transparent pricing, great customer service, and honesty in our business practices make us the plumbing and HVAC company that you'll feel good working with on a regular basis, with 100% satisfaction guaranteed.
+11
Serving Watertown, WI and surrounding areas
Approved
In business since 2024
Free estimates
Emergency services offered
"Shane was able to schedule a prompt appointment. He arrived on time and performed a thorough diagnostic on the furnace. He identified an issue I was unaware of and corrected the problem with the air conditioner using parts that were still under warranty. I will gladly use his services again."
+2
Serving Watertown, WI and surrounding areas
Approved
In business since 2009
Emergency services offered
Warranties offered
"Had them out to complete a duct cleaning for my home and they were very throughout and very friendly to all members of my family including working with having pets in the home. fairly priced for the high level of service provided"
+51
Serving Watertown, WI and surrounding areas
Approved
Free estimates
Small jobs welcome
Credit card accepted
At LSI repair we offer only the best and fair prices. We also specialize in heat treating furnaces but we cover a large array of services from residential to commercial from small to big.
Serving Watertown, WI and surrounding areas
In business since 2018
Free estimates
Credit card accepted
"I found Jeremy to be very well informed about heating and air conditioning and very pleasant to work with."
+16
Serving Watertown, WI and surrounding areas
In business since 1949
Free estimates
Emergency services offered
"We tend to try and have the heating inspection and the air conditioning every year. We don't always quite accomplish that and we've had other people do it but I thought their prices were fair. They were prompt in getting here and answered whatever questions I had. It took them about 2 hours to do the work."
Serving Watertown, WI and surrounding areas
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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