Family Owned · 30+ Years · Auburn, WA
The Family Behind Your Comfort
Green City isn’t run by a call center or a corporate franchise. It’s a business built by a family who wanted to do things the right way — and never stopped.
Free estimates · Family owned · No subcontractors · Daikin authorized
OUR STORY
Built on Values, Not Sales Tactics
Jeff Simonson spent decades in the HVAC industry watching companies treat customers like transactions — overselling equipment, hiding fees, and moving on to the next call. He and Katrina started Green City Heating & Air Conditioning because they believed there was a better way.
Their goal was simple: build a company where every customer feels like a neighbor, not a number. Where technicians take the time to explain what’s wrong, give honest options, and do work they’re proud to stand behind.
That philosophy hasn’t changed in over 30 years.
Years of HVAC Experience
Google Rating · 191+ Reviews
Owned & Multi-generational
Counties Served (King · Pierce · Snohomish)
FOUNDER & MASTER HVAC TECHNICIAN
We started Green City because we were tired of seeing homeowners treated like a number on a sales board. Your comfort, your home, and your trust matter — and that’s not something we take lightly.
WA State License: #GREENCH866B2
WHY GREEN CITY
What Makes Us Different
A lot of HVAC companies talk about customer service. Here’s what it actually looks like at Green City.
Our technicians are paid to solve problems, not upsell equipment. You get an honest diagnosis — not a sales pitch.
Every technician who shows up at your door is a trained, vetted Green City employee. Never a subcontractor.
Factory-trained on the world’s leading HVAC systems. 12-year warranty on qualifying Daikin installations.
Jeff, Katrina, Brittany, and Tylor are all active in this company. Family accountability shows up in every job we do.
You know the cost before work begins. No surprise invoices. No hidden fees. Estimates are free.
One call covers it all. Our electrical team handles panels, EV chargers, 220V circuits, and more.
MEET THE TEAM
The Simonson Family
Four family members. One shared commitment to doing HVAC the right way.
FOUNDER & MASTER HVAC TECHNICIAN
With 35+ years in the industry, Jeff has seen every system, solved every problem, and built a company around doing it honestly. He remains hands-on daily — in the office, on the floor, and behind every standard Green City sets. License: #GREENCH866B2.
CO-FOUNDER & OPERATIONS
Katrina has been the organizational backbone of Green City since day one. Her focus on customer experience, team culture, and operational excellence has shaped this company into what it is today.
DIRECTOR, GREEN CITY ELECTRICAL
Brittany built something new within the family business: Green City Electrical. She assembled a team of licensed residential and commercial electricians for panel upgrades, EV charger installation, 220V circuits, and surge protection — all in-house.
Installation & New Construction Lead
Tylor specializes in custom HVAC system design for new residential construction — ductwork layout, equipment selection, furnaces, heat pumps, ductless, and boilers. He works alongside Jeff daily, bringing two generations of expertise to every major project.
READY TO GET STARTED?
Questions? Our Team Is Ready to Help.
Whether you need a quick repair, a full system replacement, or just an honest second opinion — Green City is here. No pressure, no commissions, just real help.
0% financing available · Free quotes · Serving King, Pierce & Snohomish counties
★★★★★ 4.9 · 191+ Reviews · Licensed & Insured
THE NUMBERS
30+ Years Of Standing Behind Our Work
- Transparent pricing — you know the cost before work begins
- No subcontractors — every tech is a trained Green City employee
- Daikin authorized dealer — factory-trained, 12-year warranty eligible
- 0% financing, zero down — for 12 months on qualifying purchases
- PSE rebate eligible — we help you maximize utility savings
- Serving King, Pierce, and Snohomish counties
Google Rating across 191+ verified reviews
Years of combined HVAC expertise
Counties served: King, Pierce, Snohomish
Subcontractors. All work done by our team.
FAQ
Common Questions About Green City
Is Green City Heating & Air a family-owned business?
Yes. Green City Heating & Air Conditioning is a family-owned and operated HVAC company founded by Jeff and Katrina Simonson. Their children Brittany and Tylor are also active members of the leadership team, making this a true multi-generational family business serving the Seattle area.
How long has Green City Heating & Air been in business?
Green City Heating & Air has been serving the greater Seattle area for over 30 years. Founder Jeff Simonson has more than 35 years of personal experience in the HVAC industry.
What areas does Green City Heating & Air Serve?
Green City serves customers throughout King County, Pierce County, and Snohomish County — including Auburn, Seattle, Bellevue, Renton, Kent, Federal Way, Tacoma, and surrounding communities.
Does Green City offer electrical services as well as HVAC?
Yes. Green City Electrical, led by Brittany Simonson-Rush, provides residential and commercial electrical services including panel upgrades, EV charger installation, 220V circuits, and surge protection. Having both HVAC and electrical in-house means complete start-to-finish installations under one roof.
30+ YEARS SERVING SEATTLE
Four family members. One shared commitment to doing HVAC the right way.
- Free Estimates
- Licensed & Insured
- No Subcontractors
- 0% Financing Available
- Family Owned Since 1989
