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Covina Tankless Water Heater Installation​

What Makes Our Tankless Water Heater Installation Services Stand Out?

Here’s why our tankless water heater installation services are a cut above the rest in West Covina:


  • Family-Like Treatment: Our team prioritizes building lasting relationships with our clients, treating each home and project with the utmost respect and care as if it were our own.
  • Transparency and Value: We provide free, detailed estimates upfront, coupled with special discounts for military and first responders, ensuring our services are both transparent and accessible.
  • Top-Quality Products: As official dealers of Navien tankless water heaters and Pelican water filtration systems, we offer the latest and most efficient solutions tailored to your needs.
  • Safety First: We’re an asbestos-free company, taking precautionary measures to ensure your home’s safety by conducting thorough checks before any invasive work.


At Courtesy Plumbing, you’re not just hiring a service; you’re choosing a partner committed to enhancing your home’s comfort and efficiency with a personal touch.

Quality Navien Products in West Covina & San Gabriel Valley

If you are concerned about conserving California’s water resources and natural gas, replacing your old water heater with an energy-efficient tankless model helps you stay green and adds value to your home. At Courtesy Plumbing, we strongly urge our customers to consider tankless water heaters in Covina, Arcadia, Duarte, Claremont, Montclair, Brea, West Covina, and throughout the San Gabriel Valley.

Call today to schedule an appointment for tankless water heater installation in Covina, CA.

Top-Quality Navien Products

What You Can Expect With a Navien Water Heater Installation

We install ultra-efficient Navien tankless water heaters in Covina and throughout the San Gabriel Valley. This brand has been widely used in Japan for decades and is safe for all applications. We prefer Navien water heaters because it is a solid brand with an excellent track record for reliable performance at a competitive price.

Navien water heaters are also:

  • Incredibly efficient
  • Available in a wide range of models to choose from, including gas and electric versions, so you can find the perfect fit for your home
  • Warrantied

There is also a very low return rate on this brand, which speaks to their reliability.

We can help you select the best water heater and size for your home and provide a free estimate for the installation.

Reasons to Switch to a Tankless Water Heater

If you are in the market for a new water heater, there are several reasons to consider a tankless model. Tankless water heaters do not have a traditional storage tank, so you are not limited to the 50 gallons that the average tank can hold. Large families and households with significant hot water needs appreciate the constant supply of heated water that allows every member of the family to enjoy a hot shower.

The Benefits of a Tankless Water Heater Include:

  • Provides a constant supply of hot water
  • Takes up less space and easier to install
  • Requires less energy to run the unit
  • Lowers home energy costs
  • Lasts longer than traditional water heaters

Tankless water heaters cost about $100 more than standard water heaters with a tank. However, the reduction in your energy costs should make up the difference in price and allow you to continue enjoying energy savings each month. In addition, these water heaters last longer than a traditional unit, making tankless models well worth the slightly higher price tag.

When you are ready to upgrade your water heater, call (626) 774-7167 for more information and to schedule service for tankless water heater installation in Covina, CA. We install Navien water heaters, a trusted name in the industry.

FAQs on Tankless Water Heater Installation

The installation of a tankless water heater typically takes between 4 to 8 hours. This timeframe can vary based on factors such as the need for any additional plumbing or venting modifications to accommodate the new system. Courtesy Plumbing ensures a smooth and efficient installation process, keeping any disruptions to your daily routine to a minimum.

The size of the tankless water heater you need depends on the flow rate of hot water (measured in gallons per minute, GPM) and the temperature rise necessary for your home. This is determined by the number of fixtures in your home that require hot water and how many of them you expect to use simultaneously. Courtesy Plumbing’s experts can help assess your household’s needs and recommend the appropriate size.

In many cases, a tankless water heater can be installed in the same area as your old tank water heater, but it may not occupy the exact same space due to differences in venting and fuel requirements. Tankless models are more compact and offer flexible installation options, including exterior walls for direct venting. Courtesy Plumbing will evaluate your specific situation to determine the best installation location.

Yes, tankless water heaters are significantly more energy-efficient than traditional tank water heaters. Because they heat water on demand rather than continuously heating and reheating water in a tank, they use less energy. This can lead to energy savings of up to 30-50% compared to traditional tank water heaters, depending on your household’s water usage.

The cost of installing a tankless water heater varies based on the type of heater (gas or electric), the size of the unit, and any necessary modifications to your home’s plumbing or electrical systems. While the upfront cost is generally higher than that of a traditional tank water heater, the long-term savings on energy bills and the longer lifespan of tankless models often offset the initial investment.

Proudly Serving the San Gabriel Valley

Why Choose The Courteous Plumbers?

courtesy plumbers
Our aim is in our name! We are committed to courteous, honest, efficient service designed to solve your plumbing problems quickly. Call our team today to get started and we’ll be sure to find the right solution and keep you totally satisfied!
We work to provide honest service from start to finish. We won’t sell you anything you don’t need, we’ll give competitive prices, and our team will provide honest communication through the whole process.
Our carefully hand-selected crew is perfect for any of your plumbing needs. We hold a high standard on work, ethics, and customer service because you and your home deserve the best.
Our experts are equipped with state of the art, top of the line tools and materials. Quality is always at the top of our list of things we care about so your home only receives the best work.
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