Serving Trevor, 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 Trevor, WI and surrounding areas
Approved
Super Service Award Winner
In business since 2002
Free estimates
Emergency services offered
"One Hour Heating & Conditioning was prompt arriving at the scheduled appointment time. My wife and I also appreciated receiving a message that the techs were on their way. Our techs Kyle and Jacob were friendly, professional, and knowledgeable. Arguably one of the most thorough annual checkups I have had since being in the home for 7 years and using some other services in the past. While both furnaces are well beyond their expected life, neither tried to "oversell" me and offered objective pros/cons to some repair options vs. replacement. I would highly recommend One Hour Heating & Conditioning."
Serving Trevor, WI and surrounding areas
Approved
Super Service Award Winner
In business since 1990
Free estimates
Emergency services offered
"Brad did my annual furnace check up. He was pleasant, great work ethics, and answered my questions. I now feel safe with my winter heating, knowing I have an efficient, clean , and proper working furnace. Brad was great. And I have always recommended Master Services for Heating and Air conditioning Services."
Serving Trevor, WI and surrounding areas
Approved
In business since 2025
Free estimates
Credit card accepted
"I began my search for furnace tune ups and HAVC Pride Installs was the first to respond to my inquiry almost immediately-first bonus! Having weekend appointments-scone bonus! Very reasonable rate for the tune up-third bonus! Angel arrived on time as agreed-he also confirmed the appointment. Once here, very professional. He took the time to explain what he was doing, noting positive and negatives along with realistic expectations for what to fix, what was functioning ok, and what was of no concern. He as thorough and careful, cleaning up where needed. He provided helpful tips afterwards. I highly recommend giving HVAC Pride installs for your furnace tune up- you’ll be glad you did!"
+37
Serving Trevor, WI and surrounding areas
Approved
Super Service Award Winner
In business since 2017
Free estimates
Warranties offered
"Very nice and I recommend any one"
+5
Serving Trevor, WI and surrounding areas
Approved
In business since 2005
Free estimates
Warranties 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.
+2
Serving Trevor, WI and surrounding areas
Approved (Corporate)
In business since 2003
Free estimates
Emergency services offered
Here at Edelman, we’re your trusted local team for HVAC heating & cooling services around southern Wisconsin. We provide residential repair, replacement, installation, and maintenance.\n\nEdelman is built on 23 years of experience, a strong work ethic, and a commitment to delivering the best service to every client and customer. We stand behind our work with a 100% Satisfaction Guarantee on all service, repairs, and replacements. We stand behind our work with a 100% Satisfaction Guarantee on all service, repairs, and replacements.
+10
Serving Trevor, WI and surrounding areas
Approved
In business since 2021
Free estimates
Credit card accepted
At our company, we take immense pride in our wealth of experience, expertise, and the exceptional customer service we offer to meet our clients' needs. Our mission is to consistently deliver outstanding design work and drawings, from project initiation to completion. We place great emphasis on understanding and exceeding our customers' needs and expectations, ensuring that every interaction is conducted with the utmost professionalism. Our reputation is founded on top-notch service and quality, irrespective of the size of the project. Get in touch with us today!
Serving Trevor, WI and surrounding areas
Approved
In business since 1988
Free estimates
Credit card accepted
"They came out right away for the quote. Quote was better than other companies for a more efficient unit. Came out the next day and did the install."
Serving Trevor, 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.
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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