Carrier Air Conditioners
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Infinity® Variable-Speed Central Air Conditioner24VNA9
Up to 19 SEER2 for premium energy savings with premium comfort features
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Performance™ 2-Stage Air Conditioner with Intelisense™ Technology
24TPB7
Up to 16 SEER2 for enhanced energy savings with enhanced comfort features. Features InteliSense™ technology
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Performance™ Central Air Conditioner
24SPA6
Up to 16.5 SEER2 for enhanced energy savings with standard comfort features.
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Comfort™ Central Air Conditioner
24SCA5
Up to 16.5 SEER2 for enhanced energy savings with standard comfort features.
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Comfort™ Central Air Conditioner
24SCA4
Up to 16 SEER2 for moderate energy savings with standard comfort features.
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Comfort™ Coastal Air Conditioner
24SCA5***C
Up to 16 SEER2 for moderate energy savings with standard comfort features.
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Comfort™ Compact Central Air Conditioner 34SCA5Up to 16 SEER2 for moderate energy savings with standard comfort features.
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.
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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"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. -
"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.
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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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"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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"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.
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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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"I will definitely be using their services again in the future."I recently hired Onestop to install a new AC unit in my rental property in Mountlake Terrace, and I couldn't be more pleased with the service I received. From start to finish, the team impressed me with their professionalism, expertise, and attention to de- Danielle B.