Top-rated air conditioning pros.

Get matched with top air conditioning pros in Dayton, OR

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Air conditioning pros in Dayton

Avatar for Oregon Heating & Air Conditioning, LLC
Oregon Heating & Air Conditioning, LLC
4.8(
106
)

Serving Dayton, 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."
Additional Photos
37 neighbors recently requested a quote
Recommended by98%of homeowners
Request Quote
Avatar for HomePro Heating + Air
HomePro Heating + Air
5.0(
11
)

Serving Dayton, 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."
Furnace repair
Barclay st
New het pump install
System Diagnostic
Response time8 hrs
Response rate95%
5 neighbors recently requested a quote
Request Quote
Avatar for HVAC Ministries
HVAC Ministries
4.9(
14
)

Serving Dayton, OR and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Quickly identified and repaired problem with central air conditioner. Was impressed with knowledge of A/C, will be happy to recommend."
AC services
Heating & A/C Project
AC services
Heating & A/C Project
Duct cleaning

+15

Response time1 day
4 neighbors recently requested a quote
Recommended by92%of homeowners
Request Quote
Avatar for Advantage Heating & Air Conditioning, LLC
Advantage Heating & Air Conditioning, LLC
4.9(
44
)

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."
Old Furnace
New Furnace
New Ducting
Furnace Maintenance
Technician Inspects An AC

+7

Response time11 hrs
Recommended by97%of homeowners
Request Quote
Avatar for Evergreen Gas LLC
Evergreen Gas LLC
4.8(
176
)

Serving Dayton, OR and surrounding areas

Approved (Corporate)

In business since 2003

Free estimates

Emergency services offered

"Very pleasant and professional. The two representatives, in addition to making sure the air conditioning unit was in top shape, checked the furnace filters and cleaned them as necessary. They even brought their own hose."
8 neighbors recently requested a quote
Recommended by94%of homeowners
Request Quote
Avatar for Advanced Air & Energy Solutions LLC
Advanced Air & Energy Solutions LLC
5.0(
4
)

Serving Dayton, OR and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

"I had used different. HVAC contractors in the past and since I started using Advanced Air, I haven’t used anybody else. They’re quality, pricing and Customer Service is great."
Croisan Mountain
Croisan Mountain
4 neighbors recently requested a quote
Request Quote
Avatar for Air Benders Heating and Cooling, LLC
Air Benders Heating and Cooling, LLC
4.9(
11
)

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!"
AC
Coil
AC 2
Response time50 mins
Response rate87%
1 neighbors recently requested a quote
Request Quote
...
Showing 1-10 of 149

FAQs for air conditioning projects in Dayton, OR

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.

The Dayton, OR homeowners’ guide to air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.

See all articles