About Our Tankless Heater Services
Indoor and outdoor tankless water heater installation and repair in Vista, CA
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What Are Tankless Heaters?
Tankless water heaters—also known as on-demand or instant hot water heaters—function differently from their traditional counterparts by only heating water when you need it. Tankless water heaters work by heating cold water instantly as it flows through a powerful heat exchanger. This is in contrast to traditional water heaters, that waste energy by reheating water in a storage tank.
Gas Tankless Water Heaters
- Use natural gas or propane tanks to heat water.
- Heats water faster with a higher flow rate.
- Ideal for larger households or businesses that demand hot water in high volume.
- Require venting to safely expel combustion gases.
Electric Tankless Water Heaters:
- Powered entirely by electricity.
- Easier to install with fewer ventilation requirements.
- Best for smaller households or point-of-use applications that need continuous hot water.
- Typically more energy-efficient for buildings and homes.

Why Choose Tankless Water Heaters Over Traditional Options?

Stable Water Supply
Endless hot water that never runs out mid-shower.
Fast Results
Achieve the desired hot water temperature in seconds through the system’s heat exchanger.
Improved Energy Efficiency
Reduce your monthly energy cost with models designed to save energy.
Compact & versatile
Tankless water heater sizes are typically much smaller than their traditional counterparts, allowing you to easily mount one on an interior or exterior wall.
Longer lifespan
Many tankless heaters last up to 20 years with proper maintenance.
What Sets Waterfront Plumbing Apart
01.
Tankless Water Heater Experts
02.
Fast Service, Right When You Need It
03.
Honest Advice on the Right Model
04.
Water Heaters That Save You Money
Proudly Serving San Diego County For 25 Years
- Vista
- Oceanside
- San Marcos
- Escondido
- Carlsbad
- Encinitas
- Del Mar
- Rancho Santa Fe
- Bonsall
- Fallbrook
- Poway
And more! Not sure if we serve your location? Contact us for more information.
TESTIMONIALS

Lisa Van Gundy2025-04-21Trustindex verifies that the original source of the review is Google. Waterfront Plumbing did great work for us on several occasions. Marco and his crew are knowledgeable, efficient, and friendly - very easy to work with. And they cleaned up well when the job was done. I’ve recommended them to friends and neighbors who’ve been pleased as well. We’ll keep them coming back. Melissa Max2025-04-17Trustindex verifies that the original source of the review is Google. Marcos came out did a great job! He was quick efficient and was reasonably priced. Got an appointment right away which was great😊will use them again!!! Doug Gill2025-04-10Trustindex verifies that the original source of the review is Google. Marco and his crew at Waterfront Plumbing are great to work with. They are knowledgeable, honest, do great work and prices are reasonable. Teresa McGuire2025-04-02Trustindex verifies that the original source of the review is Google. Marco and his father quickly diagnosed our plumbing issue and installed two angle stops and a new faucet in our Master bathroom. Marco responded quickly to our initial call and the work was completed efficiently at a very reasonable cost. The new faucet works great! Barrett Jones2025-03-18Trustindex verifies that the original source of the review is Google. I’ve been using waterfront plumbing for years now. Marco and his team were so knowable and quick to respond. I recommend them to all my friends!!! David Naskrent2025-03-18Trustindex verifies that the original source of the review is Google. Extremely knowledgeable and easy to work with. Highly recommend. San Diego-Steve Kidwell2025-03-18Trustindex verifies that the original source of the review is Google. Great work done in our house. I’ve always appreciated working with a family business, and we would definitely work with them again. Leticia Ramirez2025-03-17Trustindex verifies that the original source of the review is Google. I can't thank them enough for all the work they did. They helped replace old pipes in the main home and set up new plumbing for our ADU. I called other companies and they were the most affordable, but also got the job done in a timely manner. I haven't had any issues and it passed inspection. Thank you for all your work, will definitely use again. Asako C2024-11-30Trustindex verifies that the original source of the review is Google. We had a hot water pipe leak under our slab and fished around for quotes from a few companies after our initial quote came out to ~$6K. Marco was a referral from a friend and he came out the same day I called him, and came back the next day and completed the work in a few hours! He’s a really nice guy and very knowledgeable. He is also reasonably priced. Could not recommend them more! Mike2024-06-16Trustindex verifies that the original source of the review is Google. I asked Marco at waterfront plumbing to come in and snake my drains since I had an emergency with my sewer backup from the toilet. He had his guys come in the next 2 hours of the call, and cleared up my lines. Very happy with the service and comfortable with the pricing.
Our happy clients




Frequently Asked Questions
- Vista
- Oceanside
- San Marcos
- Carlsbad
- Encinitas
- Escondido
Yes! We’re available 24/7 for phone calls, allowing us to schedule emergency appointments for tankless water heater installation and repair, as well as other issues like water leaking slabs, gas leaks, and burst pipes.
In most cases, we can offer same-day tankless water heater services for clogged drains in Vista and surrounding cities. Expect the functional flow of hot water in as little as three hours.
Yes, tankless water heaters are often worth switching to. While upfront costs are higher, your investment pays off through long-term energy savings, lower utility bills, and continuous hot water.
The output of your tankless water heater is influenced by flow rate, temperature rise, fuel type, and the temperature of incoming cold water. These systems are complex, but Waterfront Plumbing is here to calculate the exact settings you need.
While you can install tankless water heaters in hard water areas, you should be mindful of the mineral deposits that build up over time. To avoid long-term damage, we recommend routine flushing or installing a filter.
Depending on the model and fuel type, most tankless water heaters can last up to 20 years. That’s nearly double the lifespan of conventional storage water heaters.
On average, tankless water heaters are approximately 24%–34% more efficient than traditional tank systems.
At Waterfront Plumbing, we specialize in all things water, sewer, and gas—from leak detection and re-piping to valve repairs, tankless water heater installs, and gas line hookups. We also offer rare, highly-sought after services like hydro jetting for the most effective plumbing system.
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