Open now · Covina Water Heater Installation

New water heater?
Installed right.

Tank or tankless, gas or electric. We size it to your home, install it to code with permits handled, and haul the old one away.

Tank and Navien tankless installs, permits handled.

Call (626) 360-8993Get a free quote
  • Navien tankless
  • Permits handled
  • Upfront pricing

Get a free water heater installation estimate

We'll call you right back. Required

Or call (626) 360-8993

Flash Plumbing technician servicing a gas tank water heater with an expansion tank

Water Heater Installation

Choosing the right water heater

The right unit depends on your household, your gas line and your space.

  • Tank heaters in common sizes
  • Navien tankless for endless hot water
  • Gas or electric
  • Tank-to-tankless conversions
  • Sizing for your household
Get a free quote Call (626) 360-8993
Two Flash Plumbing technicians standing at the open back doors of a fully stocked service van

Water Heater Installation

What every installation includes

Done to code the first time, so it passes inspection and runs safely.

  • Permit pulled and inspection scheduled
  • Seismic straps and expansion tank
  • Venting and gas line checks
  • Haul-away of the old unit
  • Upfront price before we start
Get a free quote Call (626) 360-8993

Why Flash Plumbing

Why homeowners choose us.

  • Right-sized

    We size the heater to how your household actually uses hot water.

  • To code

    Permits, straps, venting and expansion tank done right.

  • Clean finish

    Neat install, tidy work area, old unit gone.

How it works

Four steps to fixed.

From the first call to a clean work area, you know what's happening and what it costs.

Call (626) 360-8993Get a free quote
  1. 01

    Call or request service

    Call (626) 360-8993 or send the form. A real person answers, day or night.

  2. 02

    We diagnose it

    A licensed technician finds the cause, not just the symptom, and shows you what's going on.

  3. 03

    You approve the price

    You get your options and an upfront price before any work begins.

  4. 04

    We fix it and clean up

    The job gets done right, tested and cleaned up before we leave.

Reviews

Neighbors who call us back.

  • Excellent job, respectful team

    Flash Plumbing Inc did an excellent job! They swapped out the 40-gallon tank for a new tankless heater. The entire time, they were professional, courteous, and respectful. They left the area cleaner than when they started.

    Iris Z.

  • Daniel & crew are great

    Daniel and crew were great, taking the time to get my 50-gal water heater installed right and now looks great with working shut off values!

    Ruben R.

  • 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.

  • Professional, great service

    Flash Plumbing Inc checked out my plumbing problem and gave me different options on how to fix it. I am so grateful for them. They were professional and provided great service. I will recommend them to many friends.

    Lilia Z.

  • They explained everything

    Flash Plumbing Inc had top customer service and amazing communication. Daniel and his team explained the whole process and gave me options. Honest, cost was affordable, and very skilled in plumbing.

    George G.

  • Honest assessment & quality work

    I’ve used Flash twice: once for a major operation to replace some shower pipes and once for a simple kitchen sink clog. In both cases, they were great! Responsive, same day service, and honest assessment of my options. Fast and high quality work.

    David M.

  • Seamless experience

    I would highly recommend this company. I had a seamless experience. Pricilla the manager was lovely to deal with and very helpful with all of my questions.

    Sasha K.
Call (626) 360-8993Get a free quote

Service area

Water Heater Installation across the valley.

We're based at 1578 W San Bernardino Rd, Suite H in Covina and serve homes and businesses within about 30 miles, across the San Gabriel Valley.

  • Covina
  • West Covina
  • Glendora
  • San Dimas
  • Baldwin Park
  • Azusa
  • La Verne
  • Charter Oak
  • Irwindale
  • Duarte

Not sure? Call (626) 360-8993.

FAQ

Water Heater Installation questions.

Still have a question? Call (626) 360-8993

Do I need a permit to install a water heater in California?

Yes. Water heater replacements in California generally need a permit and inspection, plus seismic strapping. We handle the permit for you. This is general information, not legal advice.

Is tankless worth it?

Tankless heaters cost more upfront but deliver hot water on demand, take less space and avoid standby heat loss. They're a strong fit for larger households or anyone tired of running out of hot water.

Will I need a bigger gas line for tankless?

Often, yes. Tankless units can need more gas than the old tank's line can carry. We check the gas load and upgrade the line if needed.

What size water heater do I need?

It depends on how many people live in the home and how many showers and appliances run at once. We'll recommend the right size for your household.

Open 24/7

Need water heater installation? Call now.

  • A real person answers, day or night
  • Upfront price before any work starts
  • Free estimates
  • 10% off for new customers

Call now: (626) 360-8993

Call (626) 360-8993Get a free estimate