Serving Genoa, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2014
Free estimates
Emergency services offered
"Adam and Riccardo were very nice, quick and efficient. Too bad the cooler weather isn't allowing us to use the new air conditioning unit....lol"
+1
Serving Genoa, IL and surrounding areas
Approved
Super Service Award Winner
Free estimates
Emergency services offered
Warranties offered
"Knowledgeable and professional air conditioning service"
+20
Serving Genoa, IL and surrounding areas
Approved
In business since 2016
Free estimates
Emergency services offered
"Couldn't repair old furnace without excessive cost. Came out later thesame day gave us options with exact cost and replaced the old furnace the next morning. They werefair polite and wor j ed around our achedule. Highly recommend and will use them again to replace our air conditioner down the road."
+79
Serving Genoa, IL and surrounding areas
Approved
In business since 2020
Free estimates
Credit card accepted
"He was on time, polite, showed what he was doing before and after. He will be here in the spring to look over my air conditioner."
Serving Genoa, IL and surrounding areas
Approved
In business since 2011
Free estimates
Warranties offered
"Estimate and insulation done efficiently. All our questions answered. Job well done."
+12
Serving Genoa, IL and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
"From start to finish, the HVAC installation went smoothly. The crew arrived on time, protected our floors, and explained each step of the process in plain language. They completed the job quickly, cleaned up thoroughly, and walked us through how to use and maintain the new system. The new unit runs quietly, cools/heats the house evenly, and has already made a big difference in our comfort and energy bills. I would absolutely recommend them to anyone needing a new HVAC system."
+15
Serving Genoa, IL 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 northern Illinois. 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.
+10
Serving Genoa, IL and surrounding areas
Approved
In business since 2023
Free estimates
Emergency services offered
We'are dedicated to providing our clients with the very best in service, installation, and repair for all of your heating and cooling needs.\nWe have over 26 years of industry experience, and is dedicated to providing our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company foundation is built on honesty and integrity. We specialize in Central A/C, Heating and Furnace systems in addition to a variety of HVAC-related projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction! We take pride in the attention to detail put into each of the projects we're involved with. We look forward to building long-term relationships with our clients, and guarantee your satisfaction. Please contact us for a free in-home evaluation and estimate.26 years of experience, weekends available by appointment only!
+1
Serving Genoa, IL and surrounding areas
Approved
In business since 2016
Free estimates
Offers commercial services
Committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.
Serving Genoa, IL 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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