Covina, CA & Surrounding Areas(626) 869-2284
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Tankless Water Heaters

Tankless Water Heaters Services in Covina

Reliable Tankless Water Heater Services in Los Angeles County

Upgrade to endless hot water with a tankless system. We handle the full installation, including gas line connections and venting. Our team will help you choose the right size and model for your household.

Reliable Tankless Water Heater Services in Los Angeles County

A tankless water heater, often referred to as an on-demand water heater, operates by heating water only when it's needed, thereby eliminating the need for a bulky storage tank. This innovative system uses powerful burners to rapidly heat water as it flows through the unit, ensuring a constant supply of hot water without the wait. Not only do tankless water heaters provide endless hot water, but they are also highly energy efficient, reducing both utility bills and environmental impact. At Flash Plumbing Inc., we specialize in the installation and repair of tankless water heaters in Covina, CA, and the surrounding areas, ensuring optimal performance and longevity.

Tankless Water Heaters

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What is Included

Expert Installation
Energy Efficient
Endless Hot Water
Space Saving

Why Choose Flash Plumbing

Complete installation including gas and venting
Proper sizing for your household
Energy savings guidance
Top brand partnerships
Full warranty on parts and labor
Family-Owned & Operated
Flat-Rate, Upfront Pricing
We Treat Every Home Like Our Own
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What Our Customers Say

The Only Plumber We Will Call

“A fair price and a really easy company to work with. I’ve lived in my house for 10 years and have used 3 plumbers. This is the only plumbing company I will work with again.”

- Michael L.

Fixed Leak Same Day

“Flash Plumbing Inc took my job on the same day! I had a leaking toilet upstairs that threatened to damage the ceiling downstairs. The guys arrived and fixed the issue! Will definitely use them in the future.”

- Kenneth R.

Outstanding Service & Workmanship

“Service and workmanship are outstanding. Great family-owned business. Very easy to work with. Very responsive. If you need a plumbing service, you should definitely be calling Flash.”

- Robert L.
Water Heaters
Leak Detection & Repair

Other Services We Offer

Drain Cleaning

Drain Cleaning

Stubborn clogs, slow drains, and recurring backups. We clear them all. Our team uses professional-grade hydro jetting equipment to blast through grease, roots, and buildup. No temporary fixes. We get to the root of the problem.

Emergency Plumbing

Emergency Plumbing

Burst pipes do not wait for business hours. Neither do we. When you have a plumbing emergency, Flash Plumbing responds fast with the tools and experience to stop the damage and get your home back to normal.

Water Heaters

Water Heaters

No hot water? We install, repair, and replace both traditional tank and tankless water heaters. We will help you pick the right system for your home and budget, then install it the same day when possible.

FAQ

Frequently Asked Questions About Tankless Water Heaters

Is a tankless water heater worth the investment?
For many homeowners, yes. Tankless water heaters provide endless hot water, last 15 to 20 years (compared to 8 to 12 for tank heaters), and can reduce water heating energy costs by 20 to 30 percent. They also take up significantly less space. The higher upfront cost is often offset by lower operating costs and longer lifespan.
Can I replace my tank water heater with a tankless unit?
Yes, but it is not a simple swap. Switching from tank to tankless typically requires upgrades to your gas line (tankless units need a larger gas supply), changes to venting (many tankless models use direct vent), and potentially electrical modifications. Flash Plumbing handles the complete conversion, including all necessary upgrades.
What size tankless water heater do I need?
The right size depends on the number of fixtures you want to use simultaneously and the incoming water temperature in your area. A household of 2 to 3 people typically needs a unit rated at 8 to 10 GPM (gallons per minute). Larger households may need multiple units or a higher-capacity model. We calculate the exact sizing for your home during the estimate.
Do tankless water heaters need maintenance?
Yes. Tankless water heaters should be descaled (flushed with vinegar solution) annually to remove mineral buildup, especially in areas with hard water like the San Gabriel Valley. The inlet filter should also be cleaned regularly. Proper maintenance prevents performance issues and protects your warranty.
What brands of tankless water heaters do you install?
Flash Plumbing works with all major tankless water heater brands including Rinnai, Navien, Noritz, and Rheem. We can help you choose the right brand and model based on your household needs, budget, and available gas supply. All installations include our workmanship warranty.
How long does a tankless water heater installation take?
A straightforward tankless water heater installation typically takes 4 to 8 hours. If the project involves upgrading gas lines, modifying venting, or making electrical changes, it may take a full day. We provide a clear timeline during your estimate so you know what to expect.

Need Tankless Water Heaters?

Call Flash Plumbing today for a free estimate. Honest advice, upfront pricing, and work you can count on.

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