Washington’s Oldest & Most Trusted Since 1921

Heating & Air Conditioning Experts in Seattle, WA

  • 100% satisfaction guarantee
  • Lifetime craftsmanship guarantee
  • Licensed, bonded, insured
  • Over 20 guarantees
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Your local heating & cooling specialist

Walter Zainey started the Greenwood Furnace Co. in the Greenwood neighborhood of Seattle in 1918 and quickly built a reputation for providing quality products and services.

We are committed to complete customer satisfaction and have a mission to be ‘The Most Trusted and Respected HVAC Company’ by providing the Highest Quality Air Conditioning and Heating products and services, and then backing it up with the industries best warranties and guarantees.

Today we have nearly 100 dedicated professionals with the single mission of 100% Customer Satisfaction.

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"When my hot water heater started leaking, I immediately called Greenwood, a company I rely on to maintain my furnace and water heater, both of which had been installed by Greenwood. I received a speedy call back, courteous service and the information I needed to take steps back to water heater health! I am so impressed by this company."

Rae Ann E.
Mits Diamond Contractor Trane Comfort Specialist Lennox Specialist