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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"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.
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"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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"Fantastic services!"Absolutely amazing service from OneStop! They quickly diagnosed and fixed my heating issue, restoring the heat to my home in no time. Professional, efficient, and courteous throughout the process. Highly recommend!- Ryan J.
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"Highly recommended, five stars!"It was amazing to watch OneStop Heating's team in action. Heat pumps are not small investments so it makes all the difference to know you've got a quality installation and the company will back its work with a sound maintenance program.- Ann M.
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"They have earned my trust and loyalty!"I was impressed by their professionalism, politeness, and knowledge to my inquiries, with efficiency they evaluated any issues in detail and problem-solved with skill, which assures me the job would be done right the first time.- Barbara L.
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"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.
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"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.
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"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.