HVAC Services

  • Furnaces
  • Air Conditioning Units
  • Heat Pumps
  • Water Heaters
  • Ductless Heating and Cooling
  • Natural Gas and Propane Fireplaces
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HVAC maintenance and a regular system check are the best method to extend the life of your heating and cooling equipment while minimizing your home energy costs.

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Our Greater Seattle indoor air experts offer on-site air quality examinations, and pursue allergy and asthma relief. We can make the air inside your home as clean as a hospital surgery suite at an affordable price.

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For your complete residential heating and air conditioning repairs, let the professionals at Washington Natural Gas take care of you, for all your heating and cooling comfort needs.

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Heating & AC Service Seattle

Areas We Serve:

Alderwood Manor
Arlington Heights
Echo Lake

Lake Stevens
Martha Lake

Black Diamond
Clyde Hill
Cottage Lake

Des Moines
East Hill-Meridian
East Renton Highlands

HVAC Brands We Service

Best in Class Service Heating Contractor Seattle

When your Heating and Air Conditioning systems are functioning at its best, it not only creates a comfortable environment, it also protects your home or office from humidity and moisture problems, increases indoor air quality and reduces energy costs. We carry the top furnaces, heat pumps, water tanks, fireplaces and AC units,  from America’s most trusted name brands. Washington Natural Gas is the greater Seattle areas choice for fast, friendly and affordable HVAC service. We are the leading heating contractor Seattle.

Washington Natural Gas Heating & Air Conditioning supplies air conditioning and heating repair and also installation services in Seattle. We are the top air conditioning companies Seattle that is devoted to quality in our service, as well as we mount high quality brand names.


The two installers, I forget their names, were perfect.
Same goes for the two electricians, Dave and his partner, perfect.
Randall Frechin
Quick, competent, efficient, knowledgeable, and personable 🙂
Jim Glynn
Technicians were on time and were very professional and very informative –
Good work
Brian Staton
She was very knowledgeable and pleasant!
Tanya Jennings
Very friendly and honest.
Mark Jones
Technician was fast and friendly, what more could I ask for?
David Chadwell
He was friendly, thorough and informative. I appreciate that.
Anita Bate
Was courteous and professional
Yolanda Longoria
Matt was very friendly and professional. Made a point to acknowledge my kids that kept pestering him. Great service!
Chris Clark
Very professional.
Steve Marks
Very polite person and on time.Thank You
Daryl Philmlee
Friendly and helpful. Thanks.
Henry Hanssen
Matt did a great job and was pleasant to work with. Would definitely want him to service our units in the future. Thanks!
Roy Winstead
The technician was very thorough and explained clearly what issues he found.
Gail Erickson
He was a very helpful guy!!!!
Patty Fahsholtz
Matt did a great job of explaining the problem with my furnace. Also, he was very professional, and did not pressure me to buy a replacement part I did not currently need. Excellent customer service and very trustworthy. Will be calling WNG in the future for my servicing and repair needs. Thank you!
John Daley
Outstanding customer service
Debbie Redman
Good listener & explainer.
Midge Convery
The team was professional, efficient and maintained a clean work area. The arrived on time and completed the install of furnace and air conditioning on two separate days. The team was friendly and considerate of my privacy and property. They kept me informed of progress.