
Serving North Prairie, WI and surrounding areas
Approved
In business since 1877
Free estimates
Emergency services offered
"Great job on both furnace & air condit"


Serving North Prairie, WI and surrounding areas
Approved
In business since 1877
Free estimates
Emergency services offered
"Great job on both furnace & air condit"

Serving North Prairie, WI and surrounding areas
Approved
In business since 1987
Free estimates
Emergency services offered
"Always great work, very thorough for our summer tuneup to get the air conditioning season started"





+8

Serving North Prairie, WI and surrounding areas
Approved
In business since 2016
Free estimates
Emergency services offered
"The gentleman that came was very nice, He completed the service I requested and more. I needed my furnace cleaned and checked. He explained what he as doing and everything was great."

Serving North Prairie, 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 North Prairie, 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 North Prairie, 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 North Prairie, WI and surrounding areas
Approved
In business since 1993
Free estimates
Warranties offered
"Same day service, appropriate pricing and fast. Cleaned up after the project, have recommended to others and will use again when needed without hesitation."





+3

Serving North Prairie, 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 North Prairie, WI and surrounding areas
Approved
In business since 2016
Free estimates
Offers commercial services
BB heating Cooling, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with the right skill set and team for serving the greater Milwaukee and surrounding areas. There is no job too big, or too small for our team. Call today and let us put our experience to work for you!


Serving North Prairie, WI and surrounding areas
Approved
Free estimates
Emergency services offered
Warranties offered
Rivero Total Maintenance LLC specializes in commercial property maintenance and repair services throughout Illinois. We provide professional solutions for businesses, retail locations, warehouses, and commercial facilities that need reliable and experienced technicians.\n\nOur services include electrical work, plumbing repairs, equipment maintenance, lighting, carpentry, painting, facility repairs, and general property maintenance. We are experienced in working in high-traffic environments where safety, quality workmanship, and minimal disruption to operations are essential.\n\nRTM is fully insured with General Liability and Workers’ Compensation, and our team arrives fully equipped to complete the job efficiently and professionally.\n\nOur goal is simple: You run the business, we handle the maintenance.\n
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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