Ductless Mini-Split Services in Bellevue
Ductless Air Conditioning for Redmond and Mountlake Terrace
Ductless mini-splits are a smart, flexible way to keep your home comfortable—especially if you’re looking to upgrade without the hassle of adding ductwork. Whether you're dealing with a converted garage, an older home without existing ducts, or simply want better zone control, mini-splits offer an efficient, low-impact solution. At ONESTOP, we install and service ductless systems across Bellevue, Redmond, and Mountlake Terrace with a focus on getting the job done right the first time.
We work with products from leading manufacturers to deliver dependable systems that match your home's layout and comfort goals. From new installs to diagnostics and repairs, our licensed technicians are trained to keep your mini-split system running at its best.
Call (206) 456-7300 or complete our online form to request a free estimate for ductless service in Bellevue.
Choose ONESTOP for Ductless Solutions
We’re here for the full lifecycle of your mini-split system. From initial planning and installation to regular upkeep and fast repairs, ONESTOP is your one-stop shop for dependable ductless service. Our techs are fully licensed and trained to service the systems we install—and others we didn’t.
Our ductless services include:
- mini-split installation
- ductless system maintenance
- mini-split repair
- zone system troubleshooting
- filter and coil cleanings
We install trusted brands like Mitsubishi Electric and American Standard because they offer the performance and reliability we stand behind. Whether you're starting from scratch or need help with a unit that's no longer cooling properly, we'll get your system dialed in.
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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.
Services Tailored to You
From repairs to installations, we cover all facets of HVAC.
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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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"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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"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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"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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"Everything worked out really well!"I used them for maintenance on my furnace and AC. They explained things well, were polite & professional. It was scheduled quickly and the price was good.- Jon E.
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"Wonderful service from Onestop!"They serviced my furnace and AC, and they were on time and super friendly. I would highly recommend Onestop all my family and friends.- Joshua F.
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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.
Why Mini-Splits Are a Great Choice for Local Homes
Mini-splits are ideal for homes that need efficient air conditioning without the complexity of ducts. These systems offer room-by-room control, quieter operation, and better energy use than many traditional setups. They're also compact, discreet, and perfect for spaces where airflow has always been a challenge.
Here’s why so many homeowners are making the switch:
- No ductwork required – Great for older homes, additions, or any room where duct installation isn't practical.
- Energy-efficient performance – Many systems feature inverter technology for more consistent temperature control with lower energy costs.
- Zoned comfort – Control each room independently so you're not cooling unused spaces.
- Whisper-quiet operation – Indoor units are designed to run quietly in bedrooms, offices, and main living areas.
- Easy installation – Our team can typically install a mini-split with minimal disruption to your home.
With the right system and proper installation, mini-splits offer reliable comfort that adapts to your lifestyle. If you're not sure whether ductless is the right move, ONESTOP is happy to help you weigh the pros and cons for your space.
Signs Your Mini-Split Needs Service
Mini-split systems are known for their reliability—but like any system, they need attention from time to time. If your unit isn’t cooling like it used to or you’re hearing new noises, it’s best to catch the problem early before it affects performance or leads to a breakdown.
Watch for these common issues:
- Water leaks from the indoor unit – This may indicate a clogged drain line or damaged condensation pan.
- Unresponsive remote or control panel – Electrical components or sensors may be failing.
- Reduced airflow or uneven temperatures – Could be due to dirty filters, blocked coils, or refrigerant issues.
- Strange noises or vibration – Loose fan blades or internal damage can throw the system off balance.
- System not responding to temperature changes – Malfunctioning sensors or faulty thermostats can throw off the operation.
If you’ve noticed any of these, we can diagnose the issue and get your system back to normal without the runaround.
Complete our simple online form to schedule ductless mini-split service in Bellevue, Redmond, or Mountlake Terrace today. We may be available for same-day service or emergency service!
ONESTOP's Blog
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