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HVAC Services in Lake Oswego, OR

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over 1,100 reviews

Sunset Heating & Cooling is proud to provide exceptional air conditioning and furnace services to Lake Oswego residents. Backed by years of experience and an uncompromising commitment to quality, our local HVAC company can handle all of your repair, replacement, and maintenance needs. We're available for FREE estimates, and offer financing options for your convenience. Get started today by reading our reviews and scheduling a service appointment!

Call (503) 500-5866 now to request an air conditioning or furnace service in Lake Oswego.

Gas Furnace Repair & Installation in Lake Oswego

Your furnace is essential to your home comfort during the winter months. When your furnace starts acting up, don't wait too long before you call our Lake Oswego furnace repair team. We fix all types of problems, from weird furnace smells to concerning noises. Does your furnace turn on, but only blow cold air? Does your furnace not turn on at all? If you've already checked your breaker and are still at a loss, our team can help. We'll strive to fix whatever is repairable, or we'll help you understand your options for a new system if repairs are simply not feasible.

Need a new gas furnace? Here's what to consider:

  • 80% efficient gas furnaces are the minimum efficiency available today, with 90%+ efficient furnaces becoming the industry standard. 90%+ furnaces use a different type of heat exchanger (the component that separates the fire from the air stream & allows the heat transfer) and they vent via PVC instead of metal piping.
  • Furnaces have either a multi-speed blower motor or a higher efficiency ECM (Electrically Commutated Motor) motor. ECMs are quieter and more reliable, and they offer more airflow options. ECMs usually run at 60% of full speed when the fan is on when the furnace isn’t heating and cooling.
  • The gas valve in a furnace controls the gas flow to the burners – the valve can either be 100% on/off, 2 stage or modulating. Higher efficiency furnaces use a 2 stage or modulating gas valve for more even temperature control and greater efficiency.

Air Filtration & Indoor Air Quality

Today’s homes are built with very little air leakage and infiltration, often resulting in increased problems with indoor air quality. On average, indoor air is usually 2 to 5 times more polluted than outside air. Air filters are often the most overlooked part of an HVAC system, yet they are the simplest way to keep a system working cleanly and efficiently. Furnaces and air handlers come from the factory with a place for a filter, but this is usually the minimum required to keep the equipment relatively clean. Upgrading the system’s air filter is a must if more than minimum filtration is desired.

Filter efficiency is rated using a Minimum Efficiency Reporting Value known as a MERV rating. The higher the MERV rating, the better the filtration, with HEPA filters having the highest efficiency. Air filters should also be installed in ducts or equipment so that there is no leakage past the filter – if air can leak, then so can dust!

Contact us online or at (503) 500-5866 for dependable Lake Oswego HVAC services today!

Heat Pump & AC Repair

Air conditioners use the refrigeration process to move heat from inside a home to the outside. Heat pumps are like air conditioners, but they can also reverse their operation and move heat from outside into the home. Both ACs & heat pumps have an indoor coil (usually located in the ductwork by the furnace) that the indoor air moves through. Heat pumps run a little differently too – they will often build frost on the outdoor coil and go into a defrost cycle. Heat pumps usually need a backup source of heat but are very efficient systems for the weather we get in Oregon. If you need service for either of these systems, give our Lake Oswego AC repair team a call.


People often don’t know how important their ductwork is, but the ductwork for an HVAC system is vital to the proper operation of the system. Ductwork should be designed properly for the type of system that is installed. Ducting should also be insulated and sealed properly, or the efficiency of your heating or cooling system can be diminished. If the performance of your AC or heater has been suffering, you may have an issue with broken and/or leaking ductwork. Give us a call to schedule an inspection.

Ductless Mini Splits

Ductless mini-split-system heat pumps (aka mini splits) were developed in Asia over 20 years ago, and are very efficient. In addition to being space-saving in design, they can also provide dehumidification. Some rebates/credits are still available for high-efficiency systems like ductless mini splits. They are usually simpler than standard heat pumps to install, and can mean saved space that would usually be taken up with ductwork. We can help you determine if this type of system is right for your home or provide service for your existing unit.

What Our Clients Say

Roman did an awesome job. I had the trifecta, new AC unit ,furnace and hot water heater. Courteous, and competent service. I highly recommend Sunset Heating & Cooling.

-Charles E.

The Sunset team who sold and installed a new furnace and AC unit in my condominium were wonderful. They were knowledgeable, professional, thorough, respectful and friendly. They went the extra mile to be sure other residents were not impacted and I was happy. They took special care to leave no trace of their being here, except for new and vastly improved heating and cooling system.

-Kaki B.

Many thanks for a great job of diagnosing, explaining and fixing our problem. We are very appreciative and will be happy to tell others.

-Greg G.

Sunset went out of their way to help with my project and David was amazing. Great job and look forward to future projects.

-Todd T.

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