Serving Mulino, OR and surrounding areas
Approved
In business since 2020
Free estimates
Emergency services offered
"We called several HVAC companies for our ductless mini split, but Aviator was the only one that responded quickly. They fixed the issue the next day and saved us from replacing the whole system. Excellent service!"
+38
Serving Mulino, OR and surrounding areas
Approved
In business since 1990
Emergency services offered
Credit card accepted
"They were just extremely professional and very very good. I did have a problem during the year with an adjustment for summer and winter for upstairs. They came out and they had already put a bracket in to adjust for summer and winter that I didn't know about and didn't understand. They went beyond what they needed to do. They came out and showed me. It took 10 minutes and I was able to change my heating and air upstairs. I would recommend them to anybody."
Serving Mulino, OR and surrounding areas
Approved
In business since 2014
Free estimates
Credit card accepted
"Just have to get used to the new furnace. "Ben" was nice enough to have the old air condition system removed without replacement, at my request. Customer service is very good."
+1
Serving Mulino, OR and surrounding areas
Approved
In business since 1981
Free estimates
Emergency services offered
"I was referred to Columbia Heating and Cooling through NW Natural. My furnace randomly stopped working (later found out it was because of a squirrel...) during some of the coldest nights we've had so far this winter. The tech showed up ahead of the scheduled time and was able to fix my furnace within 30 minutes. No complaints, and glad to have heat again."
Serving Mulino, OR and surrounding areas
Approved
In business since 2019
Free estimates
Emergency services offered
"Tom did a awesome job I had a air conditioning unit and a furnace installed they were very professional clean and did a amazing job they did not try and up sale me everything was great thanks guys for a awesome job I would recommend them for your job"
Serving Mulino, OR and surrounding areas
Approved (Corporate)
In business since 1989
Free estimates
Emergency services offered
"Dave from Columbia came to my place in Portland from Scappoose on a same-day appt, for what I thought was a dead furnace. (I had tons of smoke flow into the home after furnace turned on.) Rather than just presuming the furnace was dead or even the problem, Dave poked around. He discovered the smoke was from the fireplace/chimey and the furnace turning on had pulled air from the chimney, reignited a smoldering log, and then filled the house with smoke. The problem was with the chimney all along, but Dave/Columbia did not charge me anything for the trip to Portland---or for diagnosing the problem---even when I called later to offer. Great service, great customer relations, great knowledge of how air moves through homes."
+52
Serving Mulino, OR and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
"Home Pro Heating and Air did an excellent job fixing my A/C. From the moment I called, they were professional, responsive, and straightforward. The technician arrived on time, diagnosed the issue quickly, and explained everything in a way I could understand. The repair was done efficiently, and my air conditioning has been running perfectly ever since. Their pricing was fair, and the level of service was outstanding. It’s rare to find a company that’s both honest and highly skilled, but Home Pro proved to be both. I’m extremely satisfied and would absolutely recommend them to anyone needing HVAC work."
Serving Mulino, 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 Mulino, OR and surrounding areas
Approved
In business since 2018
Free estimates
Warranties offered
Best products. Best Prices. Best workmanship. Top-rated, same-day HVAC services keeping your home comfy and energy-efficient all year round. With 20+ years of experience, Comfy HVAC provides expert installation, service, and repair for furnaces, air conditioners, heat pumps, and mini-splits. We offer free estimates, honest pricing, and a workmanship guarantee to ensure your comfort in every season.
Serving Mulino, OR and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
When you choose Central Air Heating, Cooling & Plumbing's HVAC services, you can expect: \n\n- Fast, Same Day Service \n- Upfront Pricing with No Hidden Fees \n- 100% No Interest Financing - Money-Back Guarantee\n- Award Winning Technicians (840+ 5-Star Reviews) \n\nCall us today!\n\n
+7
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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