Specials
Limited Time HVAC Specialized Deals
Don't Miss out On Savings!
Furnace Installation - 2 Ton American Standard
Starting at: $8999
- 10 Year Parts & Labor Warranty
- 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
- 10 Year Parts & Labor Warranty
- 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
- 10 Year Parts & Labor Warranty
- 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.
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Fast, Reliable Service 24/7From emergencies to routine calls, our team is always ready, day or night, to restore your comfort quickly.
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Financing & Membership PlansWe offer flexible financing and value-packed memberships to keep your home running smoothly all year.
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Licensed, Bonded & InsuredYour home is in safe hands with fully certified technicians and reliable, code-compliant service.
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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.
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"12/10 recommend them for all of your HVAC needs!"They went above and beyond our expectations, and I not only look forward to working with them in the future, but I feel confident and safe knowing they genuinely have our best interests in mind when doing their job. You can tell they strive for excellence- Craig M.
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"The job was extremely well done!"Adam and Gram came in today to install a new furnace. The job was extremely well done and completed in half a day. I couldn't be happier with their service and the quality of materials they used.- Chris M.
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"My house has never been more comfortable!"Adam was phenomenal. He was not pushy and provided me with all my options. He even explained everything to me in great detail. He really helped me make an educated decision. He educated me on SEER ratings and the different types of furnaces that exist.- Bob C.
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"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.
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"If you want great customer service and great quality work give them a call!"I have to say, Onestop is top-notch, and Adam was great to work with, did not give us the run-around of what we didn’t need, as most companies seem to do. Adam was upfront and honest. Fantastic prices, exceptional customer service!- Sarah H.
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"They went the extra mile - no customer could ask for more!"
My new HVAC system works perfectly, and their teamwork was a pleasure to behold, even in hot July weather. The best communication and customer service anyone could hope for. They all really are five stars!
- Joy A. -
"10 out of 10!"This company fixed a refrigerant leak that was left by a larger company in the area. They did it at a reasonable rate, they were friendly, knowledgeable, and perform the work in a timely manner. 10 out of 10 recommend.- Michael B.
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"This team is my go-to for any HVAC work!"Adam and Gram did an amazing job with our HVAC setup. They were professional, efficient, and knew their stuff. The new system was installed quickly, and they made sure we understood everything before they left. Great experience from start to finish.- Michael B.