Cloud 9 Heat & Air was awarded the 2025 Mitsubishi Diamond Contractor of the Year!
A tankless water heater provides endless hot water without the energy waste of a traditional tank system. Whether you’re replacing an old water heater or installing tankless for the first time, our certified technicians ensure your system is sized correctly, installed safely, and optimized for long-term performance.
We specialize in tankless water heater installation for homes throughout Seattle and the surrounding Eastside. Our team handles everything from system selection and venting requirements to final testing and setup, ensuring your new tankless system runs efficiently from day one.
Choosing a tankless system means:
Hot water on demand — no waiting for a tank to refill
Lower monthly energy costs thanks to efficient heating
More space due to compact wall-mounted design
Longer equipment lifespan compared to tank-style heaters
Whether you need a gas tankless unit or electric tankless water heater installation, we make the process simple, safe, and stress-free. We provide honest recommendations, transparent pricing, and installation done right — the first time.
System sizing and unit selection guidance
Gas, electric, and venting configuration
Removal of old water heater (if replacing)
Safe installation and secure mounting
Temperature and performance testing
Instruction on system operation & maintenance
Energy-efficient tankless system installed for continuous hot water and reduced energy use — designed to fit your home and lifestyle.
Sleek, space-saving electric tankless systems professionally installed to deliver reliable hot water and smooth day-to-day use.
We specialize in residential AC installation, ensuring your home stays cool, comfortable, and efficient. Every installation is done by certified professionals using top-quality materials and equipment.
When repairs are no longer cost-effective, our AC replacement services provide a seamless upgrade to a modern system. Enjoy improved cooling power and lower operating costs.
Make your investment more affordable with available AC installation rebates and financing options. Our team helps you find local energy programs to save on upfront costs.
Trusted experts delivering reliable heating & cooling solutions for comfort in every season.
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We provide HVAC services during regular business hours, Monday through Saturday. If you have an urgent issue, let us know — we’ll try to schedule your visit as soon as possible.
We proudly serve Seattle, Bellevue, Redmond, Bothell, Kirkland, and the greater King County region. Our service area continues to grow, so if you’re located nearby, give us a call — chances are, we can help.
Yes! We offer flexible financing options through Synchrony and help homeowners access rebates on energy-efficient systems through local programs. Our team guides you through the process to make your upgrade affordable and stress-free.
Not every problem means you need a new system. Our technicians carefully inspect your unit and give honest recommendations. If a repair can extend the life of your system, we’ll do it. If your unit is old, inefficient, or costly to maintain, we’ll walk you through replacement options that fit your home and budget.
We install a wide range of HVAC systems to match your home’s needs, including furnaces, central AC units, ductless mini-splits, heat pumps, and air purification systems. We work with trusted brands known for reliability and energy efficiency, so you get long-lasting performance and peace of mind.
Yes — regular maintenance is key to avoiding costly breakdowns. Our seasonal tune-up and maintenance plans include inspections, cleanings, and performance checks that keep your system running smoothly. Preventative care not only extends equipment lifespan but also keeps energy costs low and comfort levels high.
At Cloud9 HVAC, we’re proud to bring reliable heating, cooling, and air quality services to homeowners throughout the Greater Seattle area. Whether you’re in Bellevue, Redmond, Bothell, or Kirkland, our certified technicians are ready to deliver comfort and care you can count on backed by integrity, expertise, and local experience.
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