Serving Lake In The Hills, IL and surrounding areas
Approved
In business since 1946
Free estimates
Emergency services offered
"Arrived within the expected hours and provided a thorough inspection, cleaning and servicing of the air conditioning equipment. Serviceperson was clean and courteous and explained the findings in detail. Definitely will continue to use All Temp!"
+2
Serving Lake In The Hills, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2002
Free estimates
Warranties offered
"Andrew and his assistant were very professional in their approach to cleaning our air ducts and dryer vent. The services they provided were totally consistent with how they describe their approach to the service they provide. This included the very helpful before and after pictures taken which would convince anyone of the need to have this work performed in their homes."
+81
Serving Lake In The Hills, IL and surrounding areas
Approved
In business since 2011
Free estimates
Emergency services offered
"Rick was very helpful with selecting my new central air and furnace system. I am still thrilled with the result."
+8
Serving Lake In The Hills, IL and surrounding areas
Approved
Super Service Award Winner
Free estimates
Emergency services offered
Warranties offered
"Excellent experience from start to finish! The technicians arrived on time, cleaned our air ducts thoroughly, and serviced our heating system perfectly. The air quality improved instantly. Professional, friendly, and extremely reliable service overall."
+20
Serving Lake In The Hills, IL and surrounding areas
Approved
In business since 2003
Free estimates
Emergency services offered
"He was very good. I had some company coming from out of town and my air conditioning wasn't working. He came that day to fix it. He knows what he is doing. He gets the job done. He came within 1/2 hour of my phone call because he was in the area. He got my air conditioner going right away. It was really hot that day. He took care of it right away. He could have tried to tell me it was the compressor or something, but he didn't. He was prompt, he did a good job, and he was fair. He installed a furnace and air conditioner at my mother's house as well. He did a good job there too. He was here previously to try and quiet down my air conditioning, but nothing seemed to work too well. He was really good on the installation, but I thought he was a little high on the repair. "
Serving Lake In The Hills, 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 Lake In The Hills, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2014
Free estimates
Emergency services offered
"They were prompt, friendly and knowledgeable. The problem with my A/C was explained to me clearly and I was back in cool, air conditioned comfort in no time!"
+1
Serving Lake In The Hills, 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 Lake In The Hills, IL and surrounding areas
Approved
In business since 2008
Free estimates
Emergency services offered
"They were able to assess and fix our air conditioning unit in one visit. So convenient, they were available within a couple hours of our inquiry."
+40
Serving Lake In The Hills, IL and surrounding areas
Approved
In business since 1995
Free estimates
Emergency services offered
Dr. HVAC has been in business for 31 years, owned and operated by Steve Rokkas. Steve is personally involved with every project to insure complete customer satisfaction. If you are in need of a full-service HVAC contractor, call Dr. HVAC for reliable, speedy installation at the best prices in the Skokie, IL area. If you are looking for duct work or heating services call Dr. HVAC for the best customer service in the area. Contact us today!\nAll equipment comes with 5 yr part customer has to register for 10yrs parts
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.