

Ductless AC in Seattle
Mini Split System Installations Across Western Washington
Looking for an efficient and flexible way to keep your Seattle home cool? Ductless AC systems, also known as mini-splits, are a fantastic option, especially for homes without ductwork, new additions, or rooms that need targeted temperature control. These systems are quiet, deliver direct cooling, and are highly energy-efficient, making them a favorite for many homeowners.
Brennan Heating, Air Conditioning, Plumbing, and Electrical helps homeowners throughout Seattle and the Western Washington area, from historic homes in Capitol Hill to modern builds in Bellevue, discover how ductless air conditioning can meet their specific cooling needs. Our team is ready to walk you through the benefits of the system, evaluate your home's layout, and determine if a ductless system is the right fit. If so, we will install it quickly and efficiently!
We’re committed to delivering quality installations that bring long-lasting comfort and peace of mind to our neighbors throughout Western Washington. Call (206) 222-7674 to schedule a free estimate for a ductless air conditioning system in Seattle today.
How Ductless AC Works
Ductless AC systems, also known as mini-splits, offer a straightforward and efficient way to cool your Seattle home without requiring traditional ductwork. They generally consist of two main parts: a compact outdoor compressor unit and one or more indoor air-handling units. These indoor units are often mounted discreetly on a wall or sometimes recessed into a ceiling.
These key components are connected by a small conduit that houses the refrigerant lines, electrical wiring, and a condensate drain line. The outdoor unit works to cool (or heat, in many models) the refrigerant, which is then circulated to the indoor unit(s). The indoor unit then quietly distributes the conditioned air directly into the room. This direct delivery system allows for effective cooling right where you need it, minimizing energy loss.
Benefits of a Ductless AC System in Western Washington
Ductless AC systems offer homeowners in the region a flexible, efficient, and comfortable cooling solution. Key advantages include:
- Zoned Comfort – Control temperatures in different areas of your home independently, cooling only the spaces you’re actively using.
- Improved Energy Efficiency – Reduce energy waste since there’s no loss through extensive ductwork.
- Quick & Less Disruptive Installation – No need for large-scale ductwork projects, leading to faster setup and minimal home disruption.
- Quiet Operation – Enjoy whisper-quiet cooling thanks to advanced, modern unit designs.
- Better Indoor Air Quality – Many models feature multi-stage filtration systems that help reduce allergens, dust, and other airborne particles.
Is Ductless AC Right for Me?
Ductless AC systems are wonderfully versatile, making them a great comfort solution for homes in the Seattle area. If you're wondering if this technology is a good match for your specific needs, consider some common applications where ductless systems truly shine.
Homes without existing ductwork, such as many older houses in neighborhoods from Ballard to Columbia City, or those with boiler and radiator systems, are prime candidates for ductless mini-splits. They are also an excellent choice for home additions, sunrooms, or converted spaces like attics or garages where extending existing ductwork isn't feasible or cost-effective. Ductless units can also be used to supplement a central system in rooms that are persistently hard to cool, or to provide individual temperature control in different zones of a larger house, such as a home office or nursery.
How Often Should I Maintain My Ductless AC?
Regular maintenance is key to ensuring your ductless AC system works efficiently year-round. For most homeowners, we recommend a professional tune-up at least once a year. Maintenance includes cleaning filters, checking refrigerant levels, and inspecting system components. This helps prevent unexpected breakdowns, extend the lifespan of your unit, and maintain peak energy efficiency.
What Are the Signs My Ductless AC Needs Repairs?
Recognizing early warning signs can save you from costly repairs later. Call Brennan Heating and Air Conditioning if you notice:
- Reduced cooling performance
- Unusual noises or vibrations
- Water leaks around the unit
- Higher-than-usual energy bills
Our technicians provide prompt, expert repairs to restore comfort quickly and efficiently.
For dependable ductless AC services in Seattle, trust Brennan Heating and Air Conditioning to keep your home cool, comfortable, and energy-efficient all season long.
Our team at Brennan Heating, Air Conditioning, Plumbing, and Electrical can help evaluate if ductless is a sensible fit for your circumstances. Call (206) 222-7674 or contact us online to schedule a free estimate for a ductless cooling system in Seattle.
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“We had our ducts cleaned. The Brennan employees arrived on time and did a great work. They were respectful, wearing shoe coverings, courteous, and professional in their work. I would not hesitate to use their services in the future.”- Bryan S.
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“I had Brennan come today to clean my air ducts. Since this was the first time having it done, it was reassuring to know it’s a pretty simple & fast process, and totally affordable. You're always in good hands with them.”- Sandy M.
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“Great service, Dakota was very polite and helped us understand what was being done. We've used Brennan Heating and Air Conditioning for many years and have always had great service!”- Dianne B.
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“Rick Clements from Brennan made the process easy, straightforward, and clear. I had a lot of questions about which system to choose for my situation, and he helped guide me to the right one without trying to upsell. Definitely recommend.”- Jonathan L.
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“Our experience from estimate to installation was outstanding! Their price and quality of installation were a great deal. I highly recommend them for any Water Heater, AC, or Heating needs!”- Douglas D.
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“Excellent and efficient service. Brayan Rodriguez and Giovanni did a great job. Brennan will be my go to for services needed”- Diane V.
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“Bryan and Michael arrived early as I requested and worked hard to clean the furnace vents, returns and ductwork including the dryer vent. Our daughter had recently used Brennan and recommended the company. I am very happy with the results. I felt the price”- Janie H.
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“The technician arrived first thing in the morning. Dakota was friendly, knowledgeable, and repaired our air conditioning system within an hour. He explained in detail what the problem was and answered our questions well.”- Barbel G.
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Smarter, Safer, & More EfficientFrom high-efficiency HVAC installs to LED lighting upgrades and surge protection, we’re here to improve the way your home feels—and functions—year-round.
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Award-Winning CareMulti-year Angie’s List Super Service Award winner with an A+ BBB rating, Brennan is Seattle’s trusted partner for top-tier heating, cooling, and electrical services.
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Integrity Meets InnovationFrom certified energy consultants to licensed electricians, our team brings you forward-thinking solutions backed by time-tested values of honesty, reliability, and expert care.
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Trusted Since 1987With decades of experience and thousands of satisfied customers, Brennan delivers worry-free heating, cooling, and electrical solutions with service you can count on.
