Heating and Air Conditioning Services in Lake Oswego, Oregon

For the best in HVAC service, contact Four Seasons

For 40+ years, we've given Lake Oswego homeowners excellent service by requiring our technicians to earn a NATE certification (the highest level of training for HVAC techs).

And, in addition to high-quality HVAC work, we offer great prices and provide a 100% satisfaction guarantees

  • Best Pricing
    Guaranteed Best Prices in NW Oregon See details
  • Best Brands
    Goodman, Daikin, Honeywell & More
  • Best Service
    Old-Fashioned Stress-Free Service

Looking for a specific service?

Cooling Repairs & Installs

Did your AC system or heat pump break down on you during the summer when you need it the most? No worries! We have four decades of experience with repairing any make or model. Contact Four Seasons; we're just a click or call away.

See all Cooling Services

Heating Repairs & Installs

You have more important things to get to during the winter than waiting all day to have your furnace or heat pump fixed (like the Lake Oswego Christmas Tree Lighting Festival). Luckily, we can repair any make or model in as little as 24 hours so you can get back to life.

See all Heating Services

Air Quality Products & Installs

Are you an allergy sufferer? While Lake Oswego generally has good air quality, our air filters and air purifiers can help decrease the number of flare-ups you experience and improve your quality of life.

See all Air Quality Services

Customer Story in Lake Oswego, Oregon

Emergency service done ASAP


When homeowner Caitlin needed to have her heat pump repaired ASAP, she asked around the Lake Oswego community for referrals. She wanted a good price without sacrificing quality or speed. After hearing good referrals for Four Seasons, she reached out to us for a quote.


After our expert Comfort Advisor took a look at her heat pump, he figured out that the heat pump was over 10 years old and needed to be replaced. He then thoroughly explained financing options and gave Caitlin a personalized quote on a new heat pump.

By the next week, our team had completed the heat pump install, explained what work had been done and taught Caitlin how to use her new heat pump.

"Very responsive"

"We had our heat pump go out on a Friday afternoon and in the next hour, someone was out to get us a quote on a new one. He explained everything so well and helped us understand all the details! After we decided that it was the right decision that evening we have very responsive calls to confirm financing and get guys out here the middle of the next week! They were very responsive and easy to get a hold of. It was an awesome experience even if it wasn’t the best situation to initiate it"

- Caitlin T. | Lake Oswego

With 4.9 out of 5 stars on Google ⭐⭐⭐⭐⭐

Want an HVAC Contractor That Won't Give You Buyer's Remorse?

If you want delightful and reliable service backed by a 100% guarantee, contact Four Seasons. We won't waste your time and money.

Ready for Outstanding HVAC Service in Lake Oswego?