Cloud 9 Heat & Air was awarded the 2025 Mitsubishi Diamond Contractor of the Year!
If your tankless water heater is struggling to keep up, producing inconsistent temperatures, or requiring frequent repairs, it may be time for a replacement. Replacing a tankless water heater ensures you continue to enjoy endless hot water, reduced energy usage, and smooth day-to-day performance.
We specialize in tankless water heater replacement for homes throughout Seattle and the Eastside. Our technicians assess your current system, recommend the right high-efficiency replacement, handle clean removal of the old unit, and install the new system with precision.
Modern tankless systems offer improved heating technology, better temperature control, quieter operation, and better overall efficiency — helping you save on energy costs while maintaining steady hot water when you need it.
We make the replacement process simple and stress-free, with transparent pricing, clean workmanship, and dependable service backed by experience.
Inconsistent or fluctuating water temperature
Reduced water flow or weak hot water supply
Unusual noises or system error codes
Frequent service calls or rising energy bills
Unit age approaching 12–20 years
We safely remove your old tankless unit and install a new, energy-efficient system engineered for reliable, on-demand hot water and long-term performance.
Choose from top-rated gas and electric tankless systems designed to improve comfort, lower operating costs, and deliver continuous hot water for your home.
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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