Air Conditioning Repair in Portland, OR

For over 100 years, Sunset Heating, Cooling, & Electrical has been helping Portland homeowners stay cool and comfortable with reliable air conditioning repair services. When your AC starts acting up, whether it's blowing warm air, making strange noises, or not turning on at all, our experienced technicians are ready to diagnose the issue and get your system back on track quickly.

Signs Your AC System Needs Repairs

Your AC usually gives warning signs before it completely breaks down. Catching these early can help you avoid bigger, more expensive issues.

  • Warm air – AC is running but not producing cool air effectively
  • Excess moisture – Visible condensation or leaks near the unit or vents
  • Unusual noises – Banging, rattling, or frequent cycling sounds during operation
  • Leaks – Water or refrigerant leaks around the system or ductwork
  • High energy bills – Sudden spikes due to system working harder than normal
  • Uneven cooling – Some rooms stay warm while others feel properly cooled
  • Burning smells – A sharp, burning odor may indicate electrical issues or overheating components

If you notice any of these signs, it's best to schedule a professional inspection before the problem worsens.

Our AC Repair Services in Portland

When something goes wrong with your AC, we focus on finding the root cause and fixing it properly the first time. Our team handles a wide range of common and complex issues.

  • Refrigerant leaks – Restore proper cooling by locating and sealing leaks
  • Frozen coils – Remove ice buildup and fix airflow or refrigerant issues
  • Dirty condenser coils – Clean coils to improve efficiency and airflow
  • Thermostat issues – Repair or replace faulty temperature controls
  • Drainage problems – Clear clogged lines to prevent leaks and water damage
  • Dead capacitors – Diagnose and replace failed capacitors to restore proper startup and operation of your AC system
  • Electrical issues – Address capacitors, contactors, breakers, and wiring faults
  • Fan malfunctions – Repair or replace blower or condenser fan components
  • Aging components – Replace worn parts causing frequent breakdowns
  • And more – We handle a wide range of AC issues, even uncommon or complex system problems, whether it's a central AC system or a ductless mini-split

No matter the issue, we'll get your system running efficiently again so you can stay comfortable.

Limited-Time Offers

Electrical

$500 Off New Electrical Panel

Plumbing

Up to $500 Off - Whole Home Water Repipe

General

Up to $500 Off - Whole Home Attic Insulation

What to Expect From AC Repair

When you We use flat rate pricing so you know the cost upfront, with no surprise charges. Our goal is to restore your AC’s cooling performance quickly and efficiently, ensuring your home stays comfortable throughout Portland’s warm months.

Frequently Asked Questions about Air Conditioning Repair in Portland, OR

Warm air from your AC usually indicates low refrigerant levels, a refrigerant leak, or restricted airflow. Clogged air filters, dirty condenser coils, or a faulty compressor can also cause this issue. Our technicians will diagnose the exact cause and repair it to restore cool air to your home.
Frozen coils result from restricted airflow or low refrigerant levels, which cause the evaporator coil temperature to drop below freezing. Common causes include clogged air filters, dirty coils, or thermostat problems. We’ll remove the ice buildup and address the underlying issue to prevent it from happening again.
We recommend having your AC system inspected at least once per year, ideally before the cooling season begins. Regular maintenance helps catch potential issues early, improves efficiency, and extends your system’s lifespan. If your AC is older or you notice any warning signs, more frequent inspections may be beneficial.
Yes, a dirty air filter significantly restricts airflow to your system, forcing it to work harder and reducing cooling efficiency. This can lead to higher energy bills, uneven cooling throughout your home, and even frozen coils. Changing your air filter regularly and having your coils professionally cleaned helps maintain optimal performance.
Our AC repair service includes a complete system inspection to identify the problem, diagnosis of the issue, repair or replacement of faulty components, and testing to ensure your system works properly. We handle everything from refrigerant leaks and capacitor replacement to thermostat issues and drainage problems, all with flat rate pricing.

Financing Options Available

Don’t put your home comfort on hold while you save up. Sunset HVAC has flexible financing options to get the service you need now, subject to credit approval. Apply today and breathe easy. 

100 Years in Business

Home of the 100% money back guarantee and 0% financing

For over 100 years, Sunset has provided trusted heating and cooling solutions throughout the Portland area, keeping families and businesses comfortable in every season. Built on a foundation of service, innovation, and community dedication, we continue to lead the industry with unwavering commitment to quality and integrity.

Portland Air Conditioning, Heating, Plumbing and Electrical Services

From emergency repairs to full system installs, Sunset keeps your home comfortable, efficient, and worry-free.

What Portland Homeowners Say About Us

How Sunset Heating, Cooling, and Electrical gets it Done

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1. Request a Service Visit From Us

You’ll get quick turnaround and a schedule you can count on. Reach out by phone or book online whenever it’s convenient.

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2. Get Upfront Pricing Options​

A licensed tech will find the problem and give you a clear estimate before anything starts. Straight pricing with no surprises.

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3. Relax While We Repair Your Problem

We get each repair done quickly and correctly the first time, so you can sit back and not worry about a callback.

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4. Let Us Know How We Did

Great service is our promise, and it’s covered by a 100% guarantee. Once the repair is finished, we’d love to hear how it went.

Americans with Disabilities Act (ADA) Notice

We are committed to ensuring that individuals with disabilities enjoy full access to our websites. In recognition of this commitment, we are in the process of making modifications to increase the accessibility and usability of this website, using the relevant portions of the Web Content Accessibility Guidelines 2.0 (WCAG 2.0) as our standard. Please be aware that our efforts are ongoing. If at any time you have difficulty using this website or with a particular web page or function on this site, please contact us by phone at 503-500-5866 or email us at info@sunsetHC.com and place “Web Content Accessibility (ADA)” in the subject heading and we will make all reasonable efforts to assist you