01
No hot water, or never enough of it
Water heaters
Tank replacements and tankless conversions, including the tight garage closets these houses tend to have. We strap it, vent it, pull the permit and take the old one away.
Westlake Village · Tankless
Tankless water heaters
in Westlake Village
Tankless water heaters in Westlake Village, from the shop on Hillsbury Road. A tankless heater fires at four or five times the rate of the tank it replaces. That is where the job is. Get the gas and the venting right and it runs for twenty years.
Call (805) 330-3111
Request a visit
Danny picks up when he can, and calls back the same day. You get the price before we start, and nobody here is on commission. Monday to Friday, 9am – 5pm.
Licensed
CSLB #339618
Insured
Bonded and insured
Since 1977
49 years, two generations
On Google
5.0 stars
In Westlake Village
What this job looks like
in Westlake Village
Most Westlake Village houses keep the water heater in a garage closet sized for a 40-gallon tank in 1970, and a tankless hangs on that wall. The work is the gas and the venting. The line gets upsized from the meter, the vent is run for the unit, and isolation valves go on so the yearly descale the hard water calls for is a short job. In July 2026 we pulled two 50-gallon tanks here, one of them leaking, and put in a single large tankless unit, then tested every joint with a digital gas meter. The permit goes through the City of Westlake Village.
Streets and pockets we work in: First Neighborhood, Westlake Island, North Ranch, Three Springs, Southshore, the streets off Lindero Canyon.
If that is what yours is doing (805) 330-3111 Mon–Fri 9–5 Request a visit →
The job
How it goes
A conversion starts at the gas meter. A standard tank draws about 40,000 BTU. A whole-house tankless draws 150,000 to 199,000, and the half-inch gas line that fed the old tank very often cannot carry that. So the line gets upsized from the meter, and sometimes the meter itself has to be upgraded, which the gas company does. Then the venting. A condensing unit vents in PVC and needs a condensate drain; a non-condensing unit needs stainless steel vent. The unit needs a power outlet. Cold water in, hot water out, isolation valves on both so it can be serviced.
Sizing is by how many fixtures run at once and by how cold the water comes in. Groundwater here runs around 55 degrees in winter, which is the number that decides the unit, and undersizing is the mistake we see most on cheap installs. A house that wants two showers and a washer at once needs the bigger unit, and a large house with a far bathroom usually wants a recirculation loop as well.
Hard water is the other thing to plan for. The heat exchanger scales up, and a tankless in this valley wants descaling once a year. The isolation valves we fit are what make that a half-hour job. We do that service on units we installed and on ones we did not.
Call if
What you notice,
and what it usually is
01
The tank is due and you are tired of replacing tanks
A tankless lasts about twice as long. Conversion is the moment to do it.
02
Hot water runs out with a full house
A tankless heats as it goes. Sized right, it does not run out.
03
The heater lives in a closet with no room for a bigger tank
A tankless hangs on the wall the size of a carry-on bag.
04
A long wait for hot water at the far bathroom
A recirculation loop, with or without a tankless. We do both.
05
Your tankless has lost power or runs lukewarm
Scale on the heat exchanger. A descale usually brings it back.
Work in Westlake Village
From the invoice book,
names left off
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July 2026
Two 50-gallon tanks, one of them leaking
A garage with two 50-gallon heaters and a puddle under one. Drained both and replaced the pair with a single large tankless unit, with the gas and venting sized for it, then tested every joint with a digital gas meter. Two days.
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April 2026
Earthquake and leak shutoffs at the front of the house
A seismic gas shutoff valve on the meter with a stabilizer bracket, and a smart water shutoff with a pressure relief valve on the main. The house now closes its own valves.
How it goes
Four steps, and you have the price at step three
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01
You call
Danny picks up when he can, and calls back the same day. Tell him what it is doing and where.
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02
We look
We come out, find the cause and show you. In plain words, with the part in our hand where there is one.
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03
You get a price
Before anything starts. Repairs are our time plus parts, and the bigger jobs get a written bid. Nobody here is on commission.
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04
We do the work
Small repairs are usually done the same visit. Bigger jobs get a start date and a number of days, and we hold to it. Done to code, permitted where it needs it, the house left the way we found it.
Common questions
Tankless in Westlake Village: things people ask
- How fast can you get here?
- Often the same day. Westlake Village is a five minute drive from the shop, so a small job can sometimes fit between two others. Say what it is doing when you call and Danny will tell you straight away when he can be there.
- Who pulls the permit?
- We do, through the City of Westlake Village, for water heaters, gas lines, repipes and remodel plumbing. The inspection is part of the job and the paperwork stays with the house.
- Is it really endless hot water?
- Yes, up to the unit's flow rate. Two showers at once on a properly sized unit is fine. Four at once is not, on any unit. We size it for how your house is used.
- Will it cut my gas bill?
- Some. A tank keeps forty gallons hot all day whether you use it or not; a tankless heats only what you draw. The saving is real and it is not what pays for the install. Space, lifespan and never running out are the reasons people do it.
- Can my existing gas line handle it?
- Usually not without changes. That is most of the difference between a cheap quote and a correct one. We size the line from the meter to the unit and tell you what has to change before you commit.
A question that is not here (805) 330-3111 Mon–Fri 9–5 Request a visit →
Google reviews
What people say
5.0 ★★★★★ 5 reviews on Google
★★★★★
“Dan's Plumbing did excellent job for us replacing our broken water pressure regulator. Quick response, good price, great quality of work. Will hire them again.”
★★★★★
“Dan is consistent. Professional, on time, only does what is needed, experienced, easy to work with, clean, and smart.”
2 of the 5, word for word. Read the rest on Google → Had us out? Leave a review →
Nearby, and related
More in Westlake Village,
and this job elsewhere
- Plumber in Westlake Village The whole town: what the houses are plumbed with, what people call about, the neighborhoods.
- Leak detection in Westlake Village Westlake Village houses were built from 1967 on with the water lines in the slab, so a leak here usually shows up on the bill or as a warm patch on the floor before anyone sees water. We start at the meter, isolate hot from cold and the house from the irrigation, and narrow it to a line. Under a slab we bring in the locator we work with to mark the spot before anything is cut. Five minutes from the shop.
- Slab leaks in Westlake Village Slab leaks are the most common serious leak we see in Westlake Village, for a plain reason: 1967-era copper under a slab, hard water, and street pressure that runs high on many streets. Once the locator has marked it, the choice is a spot repair through one opening or a reroute overhead, and the condition of the rest of the line decides which. We say which we would do in your house before you decide.
- Water heaters in Westlake Village Most Westlake Village heaters live in a garage closet sized for a 40-gallon tank in 1970, which limits what fits and how it vents.
- Drain cleaning in Westlake Village The original drain lines in Westlake Village are cast iron or early ABS, and the sewer laterals out to the street are fifty years old.
- Repiping in Westlake Village A Westlake Village repipe is nearly always a house with its original copper in the slab that has started to pinhole.
- Pressure regulators in Westlake Village The water reaches Westlake Village from tanks on the hills, so on a lot of streets it arrives well above the 80 psi the code allows in a house.
- Repairs in Westlake Village Westlake Village is where the shop is, on Hillsbury Road, so the small jobs here are the ones we do most.
- Sewer camera & repair in Westlake Village Westlake Village went up from 1967 on, so the sewer laterals out to the street are around fifty years old, cast iron or early ABS depending on the year. The camera goes in at the cleanout and runs to the street, you watch it with us, and the transmitter on the head marks the fault and its depth on the surface. Plenty of houses here were built without a cleanout at all. In August 2026 we put one in on a line that had none, trenching about ten feet down with shoring and cutting in a combination fitting. The next clearing on that line takes an hour.
- Gas lines in Westlake Village Gas work in Westlake Village comes in a few kinds. New lines out to a BBQ, a fire pit, a range or a pool heater, sized for the appliance and the length of the run. Upsizing from the meter when a tankless goes in, which is most of the conversions here. Repairs and leak tests. In April 2026 we fitted a seismic gas shutoff valve on a meter here with a stabilizer bracket, and a smart water shutoff with a pressure relief valve on the main. Every line is tested under pressure and inspected, permit through the City of Westlake Village. If you smell gas, leave and call SoCalGas first.
Tankless nearby: Thousand Oaks · Agoura Hills · Oak Park · Lake Sherwood
Request a visit
Leave your details, and Danny calls you back
Your name, your number and a line about what it is doing. It goes straight to Danny's phone and he calls back to set a time, usually the same day. If it is leaking right now, skip the form and call (805) 330-3111.
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Tankless · Westlake Village
Tell Danny what
it’s doing
Describe the symptom and you will usually have an answer in two minutes. You get the price before any work starts. The shop is here. Monday to Friday, 9am – 5pm.