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Tankless Water Heaters

Expert Tankless Water Heater Installation in Spokane for Endless Hot Water

Energy Efficient Tankless Water Heater Installers Serving the Spokane Area

There is nothing quite like the shock of a hot shower turning ice cold when you're only halfway through. It usually happens right when the dishwasher starts or someone else in the house turns on a faucet. If you're tired of timing your life around your water heater's limited capacity, you aren't alone.

At Shaw Plumbing Heating & Air Conditioning, we've helped hundreds of neighbors across Spokane make the switch to a more reliable system. We know that choosing a new water heater is a big decision for your home and your budget. That's why we back our work with a 7-year installation guarantee, giving you the peace of mind that your investment is protected by local experts who actually stand behind their craft.

We don't just swap out units and leave. Our team takes the time to look at your home's specific plumbing and venting needs to ensure your new system runs at peak efficiency for years to come. Whether you're looking for a gas or electric model, we're here to make the transition simple and straightforward.

Ready for endless hot water? Call (509) 642-6166 to schedule your installation or contact us online for a free estimate.

Why Tankless Water Heater Installation in Spokane is a Game-Changer

If you have ever been the last person in your household to get into the shower, you know exactly why the old tank-style systems are falling out of favor. You end up shivering under a lukewarm stream because your 50-gallon tank simply can't keep up with the demand. It is a frustrating way to start your morning, but it doesn't have to be your reality. Making the switch to a tankless system means you are investing in a continuous supply of hot water that only activates when you actually need it.

The technology behind these units is surprisingly straightforward. Instead of keeping a massive drum of water hot 24 hours a day, a tankless unit uses high-powered burners or heating elements to warm the water instantly as it flows through the heat exchanger. This process is significantly more efficient than the traditional method. Why pay to heat water while you're at work or sleeping? By only heating water on demand, many Spokane homeowners see a noticeable dip in their monthly energy bills.

The Benefits of Going Tankless

  • Endless hot water supply: You can run the dishwasher, the washing machine, and two showers simultaneously without anyone losing temperature.
  • Significant space savings: These units are roughly the size of a small suitcase and mount directly to the wall, freeing up valuable floor space in your basement or utility closet.
  • Longer equipment lifespan: While traditional tanks often begin to leak or fail after 10 to 12 years, a well-maintained tankless unit can easily last two decades.

When we handle your water heater services, we aren't just looking at the equipment. We're looking at your lifestyle. We want to ensure that your new system is sized perfectly for your family's needs so you never have to think about your hot water supply again. It is one of those home upgrades that you’ll appreciate every single day.

Choosing Between Gas and Electric Tankless Water Heater Installation in Spokane 

One of the first questions we get is whether a home should go with a gas or electric model. There isn't a one-size-fits-all answer because every home in Spokane is wired or piped a bit differently. Most of the time, the choice comes down to what you already have available in your utility room. If your home is already set up for natural gas, a gas-fired tankless unit is often the gold standard for performance. These units generally have a higher "flow rate," meaning they can provide more gallons of hot water per minute when the ground temperature drops.

That said, electric tankless water heater installation is a fantastic option for many people, especially in homes where running new gas lines or complex venting isn't feasible. Electric units are often smaller and don't require the same exhaust piping that gas units do. However, they do draw a significant amount of power. It is common for us to find that an older Spokane electrical panel needs a quick upgrade to handle the dedicated breakers these units require.

Is your current electrical service ready for the load? We check those details during our initial visit so there aren't any surprises halfway through the job. We've seen plenty of DIY attempts go sideways because the power requirements were underestimated. Our goal is to make sure that whatever fuel source you choose, the installation is safe, code-compliant, and capable of meeting your peak demand on a busy Monday morning.

Stop fighting over the shower schedule and call (509) 642-6166 to discuss a tankless upgrade, or contact us online today.

Tankless Water Heater Repair and Maintenance

Fast, reliable tankless water heater repair and maintenance services from Shaw Plumbing Heating & Air Conditioning are just a phone call away. If you notice water leaking from water heater components, it’s crucial to address the issue promptly to prevent further damage.

Proper maintenance is crucial to protect your investment in a tankless water heater, especially when you live in the Spokane area where hard water is endemic. Regular maintenance from a licensed plumbing professional to clear out limescale is the best way to extend the longevity of your tankless water heater, although the frequency of this kind of maintenance can be reduced by water softener systems. It also helps prevent serious issues like a water heater tank leaking systems or a water heater leaking, which can lead to water damage and costly repairs if not addressed quickly.

If you find that your tankless water heater isn’t producing hot water like it used to, or isn’t producing any hot water at all, give us a call and we’ll be happy to come out for free and diagnose the problem.

In many homes and businesses in Spokane and the surrounding valley, tankless units work best when they are sized and installed correctly for the building’s demand, gas or electrical capacity, and venting requirements. During a service visit, we can evaluate whether your current system is performing as it should, identify any issues caused by mineral buildup or improper installation, and recommend adjustments or upgrades that will help your system run more efficiently. Understanding how your tankless equipment should operate also helps you decide when it is time to plan for a new tankless water heater installation that Spokane property owners can rely on for years of consistent hot water.

mission accomplished

see how shaw plumbing heating and cooling has saved the day in your neighborhood

Over 1,000+ Google Verified 4.9 Star Reviews.

  • They were very knowledgeable, courteous and kind.
    "I highly recommend this company to anyone who needs work done and need it done right the first time!"
    - Dale B.
  • They were so friendly and professional, and didn't even charge us!!
    "It turned out we had accidentally turned it off, and wasn't broken after all."
    - Kristen H.
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    "The work looks good and they have a warranty they stand behind."
    - Advanced Radon Technologies
  • Hopefully not soon, but will call again should we need help. Very good.
    "Our experience with Shaw and technician Clay Cottrell was excellent."
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    "Shaw, plumbing heating and air hands-down, the friendliest group of trustworthy individuals that are highly skilled and motivated to do an excellent job."
    - Dougie B.
  • I was very pleased with his knowledge and expertise.
    "Jason did a great job and will be my go to guy if I need anything else. Highly recommend!"
    - Tim
  • They do great work and are very professional.
    "This is the third plumbing project that Shaw Plumbing has done."
    - Richard B.
  • The conversations with David were pressure-free and I trusted his advice.
    "We are very happy with the service provided by David and we will continue to seek him out for future projects."
    - Jacqueline S.

Tankless Water Heater Installation for Spokane Homes and Businesses

Choosing a new tankless system is a big decision, and the right installation has a direct impact on comfort, energy usage, and long-term reliability. We help you compare different fuel types, output capacities, and efficiency ratings so your new unit can keep up with your family’s or business’s hot water needs. Our team also reviews venting routes, gas line or electrical requirements, and placement options to make sure the installation fits the layout of your property and complies with local building codes.

Because Spokane winters can be cold and snowy, we look carefully at how incoming water temperature and outdoor exposure will affect performance, especially for units mounted on exterior walls or garages. We walk you through what to expect on installation day, including how long the work typically takes, when water will be shut off, and how we protect your floors and work areas. For property owners along the Valley, or closer to downtown, this detailed planning helps minimize disruption and ensures your new system is ready to deliver dependable hot water as soon as we are finished.

When you choose a tankless water heater installer, you want a team that understands local plumbing codes, typical water pressure issues, and how Spokane’s cold winters affect your system’s performance. We take the time to explain your options, from unit location and venting paths to expected operating costs, so you can make an informed decision that fits your home or business. Because we work throughout the Valley, we are familiar with the needs of everything from newer construction to older homes, and we adjust our recommendations to match your property and your daily hot water usage.

Your Spokane home deserves reliable, efficient hot water. Call (509) 642-6166 or contact us online for an upfront quote you can trust.


Frequently Asked Questions


How long does it actually take to install a tankless system?

Most tankless water heater installation in Spokane projects take between six and ten hours to complete. If we are doing a direct swap, it is on the shorter side. However, if we are performing a full gas tankless water heater conversion, we need extra time to run new venting and upsize gas lines to ensure the unit performs safely and at peak efficiency.

Will a tankless unit save me money on my monthly bills?

Yes, most of our neighbors see a significant drop in their energy costs after making the switch. Traditional tanks lose heat constantly as the water sits unused, a process called standby loss. Because tankless units only fire up when you open a faucet, you stop paying to heat water while you are at work or asleep. Over time, those savings really add up.

Does Spokane’s hard water affect tankless performance?

Spokane is known for having minerals in the water that can cause scale buildup inside the heat exchanger. If left alone, this buildup can make the unit work harder and eventually fail. We prevent this by installing service valves on every unit, making it simple to perform a quick annual flush that keeps the system running like new for years.

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