
Serving Wilmington, IL and surrounding areas
Approved
In business since 2009
Free estimates
Emergency services offered
"Repairing Central Air Conditioning System"





Serving Wilmington, IL and surrounding areas
Approved
In business since 2009
Free estimates
Emergency services offered
"Repairing Central Air Conditioning System"




Serving Wilmington, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2002
Free estimates
Warranties offered
"Mr. Duct answered my call for service and was able to schedule within a few days at a time that was most convenient for my schedule. They were very open about the scope of the job and the pricing and I was more than satisfied with the quote for the work. The service technician, Mario, did an excellent job. He worked especially **** ** the second floor ducts which were just filled with construction dust and dirt! He arrived on time, was very careful as he worked, and was not the least bit fazed by the condition of those ducts! He just got to work and made them shine! I appreciated that he took pictures and shared the before and after so I could see what needed to be done. He also cleaned out the dryer vent and the outside air conditioning condensers - all with a smile and a wonderful attitude. Mario clearly had a strong work ethic and kept me informed about the progress as he moved floor to floor. I will be scheduling a cleaning next year, likely in September, and will request that Mario return to do the job. The house just feels and smells so much cleaner and fresh! Thank you Mr. Duct (and especially Mario)!"





+81

Serving Wilmington, IL and surrounding areas
Approved (Corporate)
In business since 1971
Free estimates
Emergency services offered
"We had a great experience with Four Seasons Heating & Air Conditioning during our recent replacement of our furnace and AC unit. They were very professional and completed the job on time and answered all of my questions. Would recommend them for our Heating, Air Conditioning, Plumbing and Electrical needs."





Serving Wilmington, IL and surrounding areas
Approved
In business since 2008
Free estimates
Emergency services offered
"Tim Miller responded to my request for a bid on a new air
conditioner the very next day. He spent a considerable amount of time reviewing
my current heating and air conditioning system prior to putting together a
proposal, providing thorough explanations for the existing design and that it
was well done with one exception. The furnace had been replaced by another HVAC
company twelve years ago and they sold and installed an efficient 2-stage unit
but never enabled its 2-stage operation. Tim included correcting this issue in
his proposal.
I also explained the symptoms of the current system problem
and he suggested that the problem be diagnosed and corrected prior to
installation of a new air conditioner.
I received two proposals for the air conditioner replacement.
TRM's was considerably lower for equivalent units (American Standard versus
Lennox) and work. Once I informed Tim of my decision to go with his proposal,
he had a service man out the next business day to diagnose and resolve the
problem. Diagnosis turned out to be a little tricky and it required multiple
part orders and visits but in each case, Tim's service person kept me up to
date on the order status and immediately scheduled the service visit once the
parts were available. Tim's service person was friendly, prompt, and
informative. Tim also waived the labor cost for the diagnoses and repair given
that I had accepted his proposal to replace the air conditioner - you don't see
concessions like this very often.
With the furnace issue resolved, the air conditioner
installation proceeded and once again, Tim's people were excellent. They called
ahead to let me know their arrival time which was within the two hour scheduled
time, they were friendly and very informative. The installation was done very
well and was completed within the estimated time frame.
The bottom line is that TR Miller has a very professional and courteous
staff with years of experience. They did great work and I would highly
recommend them. I'll certainly be using TRM for my future HVAC needs.
"





+1

Serving Wilmington, IL and surrounding areas
Approved
In business since 1985
Free estimates
Credit card accepted
"My loft above my garage was humid and a bit uncomfortable from what I was expecting. I’ve watched enough home repair shows and understand air flow enough to know it would never be perfect, but something was off because of the humidity issues. Mike came in and did an inspection, confirming that there was a lot of room for improvement in the garage ceiling. The heat camera was showing that there was a lot of heat transfer happening in the loft, foot prints (from boots) leaving heat transfer marks which is unusual and recommended dense insulation pack to fill the void. I sat on it for a few weeks, called and scheduled for the 17th, but got in early due to an opening. It took several hours to complete the work, and the folks said it had 5” bat insulation but a 17” void, which confirmed Mike’s original thought that there was a gap between the insulation and the loft floor which was carrying the heat from the outside into the floor."
Serving Wilmington, IL and surrounding areas
Approved
In business since 2002
Free estimates
Emergency services offered
"Donnie explained the differences in equipment available for our needs. The job was started on time and completed on time. Workmanship was outstanding. The work areas were completely cleaned after installation of the furnace and air conditioning units. Highly recommended."

Serving Wilmington, IL and surrounding areas
Approved
In business since 2010
Free estimates
Emergency services offered
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. Family owned and operated! We look forward to earning your business!

Serving Wilmington, IL and surrounding areas
Approved
Emergency services offered
Small jobs welcome
Credit card accepted
"Comfort Wizards did a good job on my air conditioner and the price was a good price thank you for your service"





+6

Serving Wilmington, IL and surrounding areas
Approved
In business since 2014
Free estimates
Emergency services offered
"Best customer service ever! Very helpful! Was able to fix air conditioner right away. I will go here for all my future maintenance or repair issues!"





+1

Serving Wilmington, IL and surrounding areas
Approved
In business since 2022
Free estimates
Warranties offered
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every client in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
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.

Use this guide to budget for appliance installation costs based on factors such as appliance type, installation complexity, labor rates, and more.

Explore how factors such as materials, local labor rates, and the type of damage affect the cost to repair a burst pipe.

Use this guide to learn how much rebar costs per foot so you can budget for your next big home improvement project.

Discover how factors such as linear footage, local labor rates, and trim type affect the total cost of painting baseboards.

Learn how much cat or dog door installation costs based on factors like the door size, material, location, and added features.

Discover how much an electric furnace costs based on factors such as unit size, local labor rates, electrical upgrades, and ductwork condition.