Air Conditioning Repair in Lake Oswego, OR

Stay Cool All Summer Long with Trusted AC Repair from Sunset Heating, Cooling, Electrical & Plumbing

Summers in Lake Oswego, OR, are one-of-a-kind. From relaxing afternoons on the lake to backyard cookouts with friends, this peaceful city is where nature and neighborhood meet. But when the summer sun cranks up the heat, there’s nothing quite as comforting as a cool, climate-controlled home. Unless, of course, your air conditioner calls it quits.

When your AC isn’t doing its job, you don’t need the added stress of sweating through repairs or gambling with an unproven contractor. You need fast, reliable, and professional air conditioning services from a team that knows Lake Oswego homes inside and out.

That’s where we come in. At Sunset Heating, Cooling, Electrical & Plumbing, we’ve been serving Oregon residents for over 100 years. We specialize in top-quality air conditioning repair, installation, and preventative maintenance. Whether you’re dealing with low airflow, warm air, or strange noises, our licensed HVAC technicians are ready to restore your comfort quickly and affordably.

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

Professional AC Repair You Can Count On

Your air conditioning system isn’t just a luxury; it’s an essential part of your home’s comfort, air quality, and energy efficiency. Our certified technicians are trained to diagnose and resolve every issue, big or small, across all major makes and models. From traditional central cooling systems to ductless mini-split air conditioners, we’ve got the tools, training, and experience to do the job right the first time.

When you schedule a service call with Sunset, here’s what you can expect:

✅ Full-system diagnostics

✅ Transparent recommendations and repair options

✅ Use of manufacturer-approved parts

✅ Courteous, clean, and professional service

✅ Flexible scheduling and emergency response

✅ Free estimates on major repairs and replacements

Your comfort and peace of mind are our top priorities. That’s why we offer flat-rate pricing, financing options, and preventative maintenance plans to keep your system running efficiently and your summer stress-free.

Here’s how we approach every AC repair job with the skill, care, and attention to detail we’ve built our name on:

1. Thorough Inspection & Diagnostics

We begin with a complete evaluation of your HVAC system. This includes checking refrigerant levels, airflow output, thermostat function, electrical components, filters, condensers, coils, and ductwork. We also listen closely to any noises or symptoms you’ve observed.

2. Clear Communication

After the diagnosis, your technician will walk you through their findings in plain language. We’ll explain whether a simple repair or a more complex solution is needed, and we’ll provide free estimates before any work begins. No pressure, no upsells: just honest recommendations that make sense for your home and budget.

3. Quality Repairs, Done Right

From replacing a faulty capacitor to correcting refrigerant leaks or addressing electrical issues, we use the highest-quality tools and replacement parts available. We follow industry best practices and ensure everything is installed, calibrated, and tested for peak performance.

4. Clean Workmanship & Respect for Your Home

We treat your home as if it were our own. That means wearing shoe covers, protecting your floors, cleaning up after ourselves, and always showing respect for your property and your time.

5. Final System Testing & Optimization

Once the repair is complete, we perform a series of post-repair checks to make sure everything is working properly, including airflow and temperature readings, electrical safety checks, and a full inspection of your ductwork and thermostat settings.

Frequently Asked Questions about Air Conditioning Repair in Lake Oswego, OR

Even the most well-maintained cooling systems can encounter hiccups—especially during the summer season when they’re working overtime. Here are some of the most common AC issues we see during our service calls in Lake Oswego: Frozen Evaporator Coils If your unit is freezing up, it could be due to poor airflow, a clogged filter, or refrigerant issues.
Sometimes it’s clear you need help, like when your AC won’t turn on at all. But other times, the signs are more subtle. Call Sunset Heating, Cooling, Electrical & Plumbing if you notice any of the following: ???? Blowing warm or lukewarm air ???? Weak or inconsistent airflow from vents ????
Sometimes, a repair is all you need. Other times, especially if your air conditioner is more than 10–15 years old, it might be time to consider a new air conditioning installation . Here’s when replacement may be your best bet: ???? Multiple breakdowns in a single season ???? Unit is over 12–15 years old ????
Yes! We’re fully equipped to handle ductless mini-split repair, maintenance, and installation. These systems are a great fit for older homes, additions, or zones with unique cooling needs. We’ll ensure your ductless setup is quiet, clean, and efficient.
Most air conditioning repairs can be completed in 2–4 hours depending on the issue and part availability. We aim to diagnose and fix the problem during a single service call whenever possible.

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

Two people shaking hands

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