
Serving Antioch, IL and surrounding areas
Approved
In business since 1946
Free estimates
Emergency services offered
"Very well. The tech did a thorough job checking both the furnace and air conditioning unit. He answered any questions we had,"





+2


Serving Antioch, IL and surrounding areas
Approved
In business since 1946
Free estimates
Emergency services offered
"Very well. The tech did a thorough job checking both the furnace and air conditioning unit. He answered any questions we had,"





+2

Serving Antioch, 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 Antioch, IL and surrounding areas
Approved
Super Service Award Winner
Free estimates
Emergency services offered
Warranties offered
"Knowledgeable and professional air conditioning service"





+20

Serving Antioch, IL and surrounding areas
Approved
In business since 1911
Free estimates
Emergency services offered
"The air conditioner is working fine."





+10

Serving Antioch, 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 Antioch, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2014
Credit card accepted
Customers say: True professional
"When we purchased this house 20 years ago, we hired a different company to replace the furnace and air conditioner. There was very little flow so they replaced several of our runs also. After all that work and expense, we were forced to run two window a/c units along with our central air. Yet our house still would not cool! We were extremely frustrated. When we hired One Hour Heating and Air Conditioning, Phil was sure he could help us. And he did. We cannot believe how wonderful our house cools. Phil was very accommodating, as we had to split the installment dates for the furnace and air conditioner. He always returned our calls, answered all our concerns, was timely, efficient and professional, as was his staff. His service and equipment exceeded our expectations and we give One Hour Heating and A/C our highest recommendation."

Serving Antioch, IL and surrounding areas
Approved
In business since 1992
Emergency services offered
Warranties offered
Precision Today is a trusted multi-trade contractor with a expert technicians specializing in HVAC services for residential properties. We deliver fast, safe, and reliable solutions—backed by same-day service.\n\nOur HVAC services include heating and cooling system installation, furnace and AC repair, seasonal maintenance, ductwork services, thermostat upgrades, and energy-efficient system replacements. Whether you need a quick repair or a full system upgrade, our technicians work with precision and attention to detail to keep your home or business comfortable year-round.\n\nWith locations in Carol Stream, West Chicago, Grayslake, Palatine, Franklin Park, and Naperville, we provide efficient coverage across the surrounding Chicago suburbs—allowing us to respond quickly and keep your project moving.\n\nIf you’re looking for a responsive, professional contractor who prioritizes safety, speed, and quality, Precision Today is ready to help—often the same day you call.





+49

Serving Antioch, IL and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
"I had the opportunity, and the pleasure, to work side by side coordinating with the office manager Maggie. She was so intentive with all my needs and always made it easy to get my questions answered. Maggie kept me informed on every step of this very large process from scheduling a crane and road crew, to getting permits and having the work inspected. SHE MADE THE WHOLE THING SIMPLE. Now the work crews worked quickly to get things running for us. The original plan was to take two days getting the old air conditioners down from the roof and then the new ones up and running. The crews had everything done in less then a day. I could not be happier with my experience with Phoenix HVAC!! I will definitely hire them again!"





+21
Serving Antioch, IL and surrounding areas
Approved
In business since 2013
Free estimates
Emergency services offered
"I used this company before and decided to give them another try. My furnace was blowing cold air. The tech was very nice and made sure I understood the work that was being done. My heat is back on and it didn’t break my pockets!!!! YEEEES!"

Serving Antioch, IL and surrounding areas
Approved
In business since 1990
Free estimates
Emergency services offered
"I had the best experience. It was a super hot day and my air conditioner stopped working (it had given me problems in the past and i knew it was time for a new one). Called Keith Lascos heating and cooling; told them the situation and they said they would be out by my house around 5pm. Not only did they show up on time but they completed the installation the very same night. The price was fair and they answered all my questions and ever since I have had no problems with my AC. It was probably the best experience I've ever had with a HVAC company."
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.