Serving Dayton, OR and surrounding areas
Approved (Corporate)
In business since 1976
Free estimates
Small jobs welcome
"The technician was very knowledgeable and did a great job. It wasn't cheap. But he got the job done and did it well, I think. We'll see how it holds up with time."
+6
Serving Dayton, OR and surrounding areas
Approved
In business since 1997
Free estimates
Emergency services offered
"Central heating and air conditioning installed . Auxilary Ductless heating and air conditioning systems installed upstairs."
+7
Serving Dayton, OR and surrounding areas
Approved (Corporate)
In business since 2003
Free estimates
Emergency services offered
"Our furnace started shooting out cold air very early morning in the midst of winter. Evergreen responded first thing the following morning (my request for repair was put in about 4am) and was the ONLY company of 4 requests to respond. They were able to get a technician out the same day for emergency repair. Todd arrived within 2 hours of confirming the visit. The company even sent a text with an image of the technician for safety purposes (this is extremely rare). He was able to diagnose the issue quickly and come up with an affordable fix that would keep the issue from recurring. He had to reroute the drain pipe that had frozen and backed water up into the system … had everything he needed in his truck and was finished within two hours of his arrival and found a solution that was affordable, quick, and professional looking. Before leaving, Todd gave us a mini lesson about the furnace so we can do basic maintenance ourselves in the future. (This is our first home, this furnace was already in place when we bought the house, and we had no experience with these types of systems.) Also gave us some reassurances regarding our natural gas system. I will definitely use this company in the future and would recommend to anyone having furnace issues."
Serving Dayton, OR and surrounding areas
Approved
In business since 2004
Free estimates
Credit card accepted
"Everything went well. Would call again."
Serving Dayton, OR and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
"Amazing work, great customer service. Happy with the work done!."
+4
Serving Dayton, OR and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"Bryan was amazing! He showed up right on time and made two trips outside of Salem to find parts to get my air conditioner running during a heat wave. Absolutely recommend!"
Serving Dayton, OR and surrounding areas
Approved
In business since 2015
Free estimates
Customers say: Quality work
"The technician was on time, very professional but personable, as well. He showed us how to operate the mini split system which weâ d never had before, did a good cleaning on it, all with a smile. I would recommend him highly."
Serving Dayton, OR and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Free estimates
Emergency services offered
"Service was great. Beau is very knowledgeable and even showed me how to operate and change the filters in my whole house filtration system. I will definitely use them again for my future plumbing needs."
Serving Dayton, OR and surrounding areas
Approved
In business since 2005
Free estimates
Credit card accepted
"When our air-conditioning unit stopped working during a heatwave, Jason came to our aid very quickly. The unit was over 20 years old and we knew it was on its last legs, though, it had miraculously to stay working since Jason fixed it 7 years prior (and saved our wedding!). As we expected, we needed a new unit and decided to also replace the furnace. Jason was able to schedule the replacements within a quick time frame, and he worked thoroughly and diligently to ensure that our new units were installed with the utmost care. He was very clean and conscientious, and we found him to be both honest and personable. We will continue to use Jason for all of our HVAC needs and highly recommend him to others."
Serving Dayton, OR and surrounding areas
Approved
Super Service Award Winner
In business since 2008
Free estimates
Warranties offered
"Great job, done with care. Thanks!"
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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