Serving Farmington, MI and surrounding areas
Approved
In business since 2006
Emergency services offered
Small jobs welcome
"My A/C was blowing warm air. They came in and fix the problem promptly. Didn't take very long. Good price, very professional. Greatly satisfied."
Serving Farmington, MI and surrounding areas
Approved
In business since 1998
Free estimates
Emergency services offered
"Had a very difficult time finding a company that was respectful of the urgency/nature of my need to have the AC replaced given the 90 degree weather we were having. Had recently moved into a place and just found out it wasn't working. These guys came out to take a look and had the job done within 24 hours. Can't say much for the price, since I didn't have time to shop around, but at a time in need this couldn't be beat. I've had many home projects done over the past couple months, and It's refreshing to see someone take pride in their business and put their customers first."
+9
Serving Farmington, MI and surrounding areas
Approved
In business since 1996
Emergency services offered
Warranties offered
"Very responsive to critical need to fix air conditioning during the heat wave. Courteous, friendly and professional. I highly recommend Harriman."
+3
Serving Farmington, MI and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1979
Free estimates
Emergency services offered
"A/C service and maintenance . Dan, the technician was extremely pleasant and did a very thorough inspection and cleaning of our A/C components."
Serving Farmington, MI and surrounding areas
Approved
In business since 2015
Emergency services offered
Warranties offered
"Thank you for the fast service and reasonable price , I had emergency call , hot water heater was installed the same day , I will recommend family and friends"
Serving Farmington, MI and surrounding areas
Approved
In business since 2013
Emergency services offered
Small jobs welcome
"Was very professional. Came over same day after hours to fix my furnace. Explained the issue thoroughly. Gave recommendations without any pressure of a sale. Will definitely call him again when I'm ready to replace both furnace and air conditioning."
+1
Serving Farmington, MI and surrounding areas
Approved
In business since 2016
Free estimates
Emergency services offered
"Zack came in to give me quote as was the only guy who was not a sales person. Value for money wise his company is excellent. He installed Tempstar furnace and Media filter. We pulled the permit . The mechanical inspector came in and said whoever did this job did it professional. Particularly he liked how the media filter cabinet was installed. We couldn't get the CWire to the thermostat. He will be coming in this week to install it. Every electrical connection were clamped to the duct properly. He also put in new drain for the humidifier. Awesome guy. Normally I would wait for atleast 6 months to a year to leave a review. In this case, because of the exceptional installation and because of the comment that inspector made i am leaving 5 star review. Will update in future if any new issues crop up. I don't expect that to be case."
Serving Farmington, MI and surrounding areas
Approved
In business since 2010
Free estimates
Credit card accepted
"Excellent rates for cleaning both air conditioning and furnace. Prompt service, with excellent response times. Staff were knowledgeable, helpful, and professional."
+1
Serving Farmington, MI and surrounding areas
Approved
In business since 2001
Free estimates
Emergency services offered
"Robert was very thorough, even to the point of washing down the air conditioner cabinets."
+3
Serving Farmington, MI and surrounding areas
Approved
In business since 2024
Free estimates
Emergency services offered
"The guy did an amazing excellent job He took and time and found what was causing the central air not to work and why the heat would not work also He fixed it completely and now everything works I really appreciate what you did for my mom cause no one else did that They just came and left and every year she had to call somebody or my brothers tried to help but they didn’t know what they were doing Do from the bottom of my heart I truly appreciate you I rate your service 1000/10000 Thank you so much"
+1
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.