Your tank is due for replacement
A tankless lasts about twice as long.
Services · Tankless
Tankless water heaters
5.0 on Google (20 reviews) CSLB Lic. #339618 Family shop since 1977
A tankless fires at four or five times the rate of a tank. With the gas line and venting done right, it runs twenty years.
Dan picks up when he can and calls back the same day. Tell him what it's doing and you'll usually get a rough answer on the spot.
- Quoted before we start
- Westlake Village, Thousand Oaks, Agoura Hills, Oak Park
- One year on our labor. Thirty days on drain clearing.
“Dan showed up right on time for our appointment. Much better service and pricing. We will definitely use Dan's Plumbing in the future.”
“Did a terrific job of diagnosing the issue over the phone prior to repair. Small footprint, quick results, up and running in no time.”
“The absolute best plumber in Los Angeles!”
The job
How it goes
A standard tank draws about 40,000 BTU and a whole-house tankless draws 150,000 to 199,000, which the old half-inch line often can't carry. We upsize it from the meter, and sometimes the gas company upgrades the meter. Condensing units vent in PVC with a condensate drain, and non-condensing units need stainless vent.
We size by how many fixtures run at once and the incoming water temperature, around 55 degrees here in winter. Undersizing is the mistake we see most.
Our hard water scales the heat exchanger, so a tankless needs descaling once a year. The isolation valves we fit make that a half-hour job, on our installs or anyone's.
Call if
What you notice, and what it usually is
Hot water runs out with a full house
Sized right, a tankless won't run out.
No room in the closet for a bigger tank
A tankless the size of a carry-on hangs on the wall.
A long wait for hot water at the far bathroom
A recirculation loop fixes it, with or without a tankless.
Your tankless runs weak or lukewarm
Scale. A descale usually brings it back.
Tell us what it’s doing and we can usually narrow it down on the phone.
From the jobsite
Recent jobs
Four steps
How a job goes
- 01
You call
Dan picks up when he can and calls back the same day. Tell him what it’s doing.
- 02
We look
We come out, find the cause and show you, with the old part in hand when there is one.
- 03
You get a price
Before anything starts. Repairs are time plus parts. Bigger jobs get a written bid.
- 04
We do the work
Small repairs usually get done the same visit. Bigger jobs get a start date we keep. Permitted where needed, and the house left clean.
What the neighbors say
“Dan's plumbing were fantastic, they installed the AWTOS water sensor our Insurance company sent us, fixed some clogged exterior drains that were blocked, and installed a new trash disposal unit...all for a very competitive price. Thanks guys, we're glad we called you!”
“They explain what needs to be done to fix the problem, are willing to do the work asap and take care in keeping the work area clean and unmarred.”
“If you're looking for a plumber who actually knows what they're doing look no further than Dan's plumbing. We use them on all of our projects”
Common questions
Things people ask about tankless water heaters
Does the hot water ever run out?
Not within its flow rate. Two showers at once is fine if it's sized right. Four is too much for any unit.
Will it cut my gas bill?
Some, since it heats only what you use. People switch for the space, the longer life and never running out.
Can my existing gas line handle it?
Usually not without changes. We size the line from the meter and tell you what has to change before you commit.
How often does it need service?
Once a year here because of the hard water. It takes about half an hour.
Where we do this
Close to the shop
The shop’s in Westlake Village. Everything we cover is about ten minutes away. Just outside these? Call and ask.
Often goes with this
Related work
Water heater repair & replacement
Tank repairs and replacements, including the strapping, venting, expansion tank and permit.
Gas line installation & repair
New lines for a BBQ, range, fire pit or pool heater, plus leak repair and tankless upsizing.
Water pressure regulators
High pressure is behind many fixture failures here. A regulator brings it down to what the house was built for.
Tell Dan what it’s doing.
You’ll usually get a rough answer on the spot. Leaking right now? Shut off the main, then call.
Or send the details and Dan will call you back. Monday to Friday, 9am – 5pm.