Specials
Limited Time HVAC Specialized Deals
Don't Miss out On Savings!
Furnace Installation - 2 Ton American Standard
Starting at: $8999
- 80% Efficiency, Single-Stage, Non-Variable
- Expert Installation by Certified Technicians
- High-Quality Performance for Ultimate Comfort
- Reliable Heating Solution for Your Home
American Standard AC Installation
Starting at: $14,999
- Premium Cooling Solution for Your Home
- Energy-Efficient & Reliable Performance
- Professional Installation for Optimal Operation
- Backed by Warranty & Trusted Brand Quality
Mitsubishi Single Zone Installation
Starting at: $11,999
- Perfect for Individual Rooms or Small Space Cooling
- Advanced Inverter Technology for Maximum Efficiency
- Quiet Operation & Smart Climate Control
- Professionally Installed for Seamless Performance
Built on Trust. Powered by Expertise.
-
Fast, Reliable Service 24/7From emergencies to routine calls, our team is always ready, day or night, to restore your comfort quickly.
-
Financing & Membership PlansWe offer flexible financing and value-packed memberships to keep your home running smoothly all year.
-
Licensed, Bonded & InsuredYour home is in safe hands with fully certified technicians and reliable, code-compliant service.
-
Locally Owned & OperatedServing Snohomish and King County with trusted, community-focused HVAC and electrical expertise.
Locations We Serve
At ONESTOP, We’re Proud to Serve many areas across Washington State, ensuring Top-Notch Residential and Commercial HVAC services in Snohomish County and King County, WA for every Home and Business.
- Lynnwood, WA
- Edmonds, WA
- Brier, WA
- Seattle, WA
- Snohomish County
- Kirkland, WA
- Mill Creek, WA
- North Creek, WA
- Alderwood Manor, WA
- Redmond, WA
- Northgate, WA
- Bothell, WA
- Woodinville, WA
- Silver Firs, WA
- Marysville, WA
- Everett, WA
- Lake Stevens, WA
- Kenmore, WA
- Smokey Point, WA
- Arlington, WA
- Green Lake, WA
- Ballard, WA
- Bellevue, WA
- Marysville, WA
Hear From Our Happy Customers
At ONESTOP, your satisfaction is our priority! See for yourself what our customers have to say about working with us.
-
"They were on time, nice, kind, honest, did their job efficiently and well."Adam and his installers arrived the next morning, on time! The crew did a great job and were done sooner than I'd expected. They not only installed my new Trane furnace, but they also made the whole area look better and cleaner.- Carrie S.
-
"I couldn't be happier with the experience!"The techs arrived on time, were courteous and respectful of my home, and quickly diagnosed and fixed the issue with my HVAC system. They took the time to explain the problem to me in a way that I could understand and offered solutions to prevent issues.- Travis R.
-
"Very professional and very knowledgeable!"I have to say thank you to Adam for coming out and getting us all fixed up and running again. He is very professional and very knowledgeable, and got the job done quickly. I will definitely be using him from here on out. Great guy for sure!!- Tony N.
-
"Excellent service from ONESTOP!"They serviced my AC and furnace and were professional, friendly, and clearly knew what they were doing. No pressure, just honest and reliable service. I’m really happy with how everything turned out and will definitely be using them in the future.- Matt H.
-
"They're my top choice for any heating and cooling needs!"I recently hired Onestop for a furnace repair, and I couldn't be happier with the service they provided. From the moment I contacted them to the completion of the repair, Onestop demonstrated professionalism and expertise that exceeded my expectations.- Ashley N.
-
"Completely satisfied with his knowledge and customer service!"He pointed out some conditions that function best with regular inspection and recommended their maintenance program.- Missy A.
-
"I can't say enough good things about the technician that came and performed the work!"OneStop is a top-notch company! They installed our new heat pump in no time, and we couldn't have been more pleased with the quality and professionalism. Very polite, professional, and proficient!- Amanda O.
-
"We had such a great experience!"The team at OneStop really cares about their work and doing a great job for their clients. Highly recommend!- Lauriana L.