Serving Corvallis, OR and surrounding areas
Approved
In business since 1995
Free estimates
Emergency services offered
"Mark came out within 2 hours since I spoke to him. He replaced a fuse in my air conditioning unit and got it running in no time. I'm very happy with the quick service during this heat wave"
Serving Corvallis, 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 Corvallis, OR and surrounding areas
Approved
In business since 1995
Free estimates
Emergency services offered
"This is the second time that I used Air Control Systems for installing new AC. Mark gave me the lowest price among several bids while providing outstanding service. I highly recommend them without reservation."
+1
Serving Corvallis, OR and surrounding areas
Approved
In business since 2005
Free estimates
Credit card accepted
"Jason came to our house on a Saturday (told me ahead of time what the charge would be), ordered the part Monday and our furnace was fixed Tuesday. He seemed very knowledgeable and actually mentioned something about our furnace that no other contractor had. Very pleased with Focus Heating."
+9
Serving Corvallis, 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 Corvallis, OR and surrounding areas
Approved
In business since 1948
Free estimates
Credit card accepted
Marshall's Specialty Services is a long-established home services company serving Lane County, Oregon. Founded in 1948, the company has grown from a small heating oil business into a full-service provider offering HVAC, heating and cooling, insulation, fireplaces, water heaters, duct cleaning, and indoor air quality solutions for residential and commercial customers. The company is headquartered in Springfield, Oregon and has built a reputation for quality workmanship, experienced technicians, and customer-focused service.
+3
Serving Corvallis, OR and surrounding areas
Approved (Corporate)
In business since 2005
Warranties offered
Credit card accepted
"We had a young man named Jake that does ductless heat pump presentations for Reynolds Electric and plumbing. In his presentation he provides us with precise info for a newer ductless heat pump . He answered our questions and definitely knows his companys products and how to present them ."
Serving Corvallis, OR and surrounding areas
Approved
In business since 2021
Free estimates
Credit card accepted
"Brian and Gretchen are great to work with. Brian updated the electrical system in our 1930 home from top to bottom, including a ductless heating/cooling system which has been wonderful."
+7
Serving Corvallis, 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 Corvallis, OR and surrounding areas
Approved
In business since 2008
Free estimates
Credit card accepted
"Awesome Air demonstrates commitment to excellence in every aspect and detail of the project. Communications are prompt and clear. Contingencies are anticipated and well-explained with options provided. Follow-through from start to completion, including follow-up to see how system is functioning, is unsurpassed. All of this led to the creation of a solid, respectful, and trusting working relationship. I cannot recommend highly enough! I am so very glad to have chosen this pro!"
+4
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.