01
The water heater is on its way out
Water heaters
Tank replacement and tankless conversion. On a conversion most of the work is the gas sizing and the venting, which is where cheap quotes tend to come up short.
Thousand Oaks · Water heaters
Water heater repair & replacement
in Thousand Oaks
Water heater repair & replacement in Thousand Oaks, ten minutes from the shop in Westlake Village. A tank water heater around here lasts ten to twelve years, and the hard water does not help. When it goes, it goes one of two ways, and one of them is a repair.
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 Thousand Oaks
What this job looks like
in Thousand Oaks
Water heaters on the east side of Thousand Oaks tend to fail in batches: the Lang Ranch houses from the late nineties are all reaching their second replacement at once. We replace tanks with the strapping, the expansion tank and the City of Thousand Oaks permit, and we do tankless conversions where the gas line can be sized for it. In October 2025 we took a tank out of a Thousand Oaks garage and put a condensing tankless unit in its place.
Streets and pockets we work in: Lang Ranch, Sunset Hills, North Ranch, the Westlake side of the boulevard, the older tracts off Erbes Road.
If that is what yours is doing (805) 330-3111 Mon–Fri 9–5 Request a visit →
The job
How it goes
No hot water on a gas heater is usually the thermocouple, the pilot assembly or the gas valve. Those are repairs, if the tank itself is sound. Water on the garage floor is different. A tank that is leaking from the body has rusted through from the inside, and that heater is finished. We say which you have on the phone if you can tell us what you see, and for certain within a few minutes of arriving.
A replacement is most of a day. We drain and remove the old unit, set the new one, fit new flex connectors and a new gas line connection, strap it to the wall at the top and bottom the way California requires, check the vent for draft and clearance, and fit an expansion tank if the house has a pressure regulator, which most here do. Then we fill it, light it, check for leaks and take the old one away. The permit is pulled in your name and the inspection is booked.
We install 40 and 50 gallon gas units as standard, and larger where the house needs it. If you are weighing a tankless instead, that is a different job with its own page.
Call if
What you notice,
and what it usually is
01
No hot water
The thermocouple or gas valve on a gas unit. Usually a repair.
02
Water on the floor around the base
The tank has rusted through. This one is a replacement.
03
Hot water runs out fast
Sediment in the tank or a broken dip tube. A flush helps a younger tank. An old one is near the end.
04
Rumbling or popping from the tank
Sediment boiling on the bottom. Flush it, and if the tank is over ten years old, start planning the replacement.
05
Rusty hot water
The anode rod is used up and the tank is corroding. Replacement is close.
Work in Thousand Oaks
From the invoice book,
names left off
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October 2025
Tank to tankless, and a fire pit line tested
Removed a tank heater and installed a condensing tankless unit in its place. While there, capped and pressure-tested the fire pit gas line at 10 psi for fifteen minutes and connected the owner's fire ring.
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December 2025
A shower leak that turned out to be pressure
A leaking shower valve got a new cartridge. The house's leak-monitor app was showing the pressure too high, so we tested the regulator at the front of the house, found it had failed, and replaced it. Two problems, one cause.
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June 2026
A gas smell outside the dining room
On the Westlake side of town. Excavated and found a hole in a half-inch galvanized gas pipe. Replaced the horizontal run, restored the gas and found a second leak where the pipe enters the house, so shut it down again for the next stage.
How it goes
Four steps, and you have the price at step three
-
01
You call
Danny picks up when he can, and calls back the same day. Tell him what it is doing and where.
-
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
Water heaters in Thousand Oaks: things people ask
- How fast can you get to the east side of Thousand Oaks?
- Often the same day. It is a ten minute drive. Say what it is doing when you call and Danny will give you a time straight away.
- Does the oak tree ordinance affect a sewer repair?
- It can. The city protects oaks and the root zone around them, so a trench cannot always take the shortest route. We locate the line from the surface first and plan the dig around the trees before anything is priced.
- Does a water heater need a permit?
- Yes, in every city and county we work in. It covers the gas connection, the venting and the seismic strapping, and the inspection is part of the price. It matters when you sell the house.
- How long does a replacement take?
- Most of a day. You are without hot water for about half of it.
- Tank or tankless?
- A tank is cheaper to buy and simpler to replace. A tankless costs more to install, because the gas line and the venting usually change, and then gives endless hot water and lasts about twice as long. If your tank sits in a tight closet or you keep running out of hot water, it is worth pricing both. We do both and will say which fits the house.
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 is consistent. Professional, on time, only does what is needed, experienced, easy to work with, clean, and smart.”
★★★★★
“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.”
2 of the 5, word for word. Read the rest on Google → Had us out? Leave a review →
Nearby, and related
More in Thousand Oaks,
and this job elsewhere
- Plumber in Thousand Oaks The whole town: what the houses are plumbed with, what people call about, the neighborhoods.
- Leak detection in Thousand Oaks On the east side of Thousand Oaks the leaks split by neighborhood.
- Drain cleaning in Thousand Oaks Thousand Oaks protects its oaks by ordinance, and that matters the moment a drain problem turns out to be a sewer problem: the shortest trench often runs through a root zone you cannot dig in. So we clear the line first, and if it has backed up before we put the camera down and locate the trouble from the surface before anyone prices a repair. In November 2025 one main here was blocked with flushable wipes and another with roots.
- Sewer camera & repair in Thousand Oaks A camera inspection in Thousand Oaks answers a question the oak ordinance makes expensive to guess at: where exactly the line has failed, and whether a repair can stay out of a protected root zone. We run the camera from the cleanout to the street, you watch it with us, and the transmitter on the camera head lets us mark the fault and its depth on the surface so the hole goes in the right place the first time.
- Repiping in Thousand Oaks Repipes on the east side of Thousand Oaks are the older tracts, sixties and seventies copper that has pinholed more than once.
- Gas lines in Thousand Oaks Gas work on the east side of Thousand Oaks lately has been outdoor kitchens, fire pits and upsizing for tankless heaters.
- Repairs in Thousand Oaks On the east side of Thousand Oaks most of what we do is small.
- Tankless in Thousand Oaks Thousand Oaks tankless work is mostly conversions, and the unit is the easy part.
- Pressure regulators in Thousand Oaks Thousand Oaks sits high enough on its east side that street pressure arrives above the 80 psi the code allows in a house, and it is worse on the hillside streets above Lang Ranch. A regulator that failed years ago shows up as a run of small failures: fill valves, angle stops, faucet cartridges, a dripping relief valve. A gauge on the hose bib settles it in a minute. In December 2025 a shower valve here needed a new cartridge and the regulator at the front of the house had failed as well, so both were replaced. An expansion tank goes on at the heater with it.
- Slab leaks in Thousand Oaks Slab leaks in Thousand Oaks come from the older tracts on the east side, off Erbes Road and along Westlake Boulevard, built in the sixties and seventies on slab with the copper in the concrete. The Lang Ranch houses are thirty years younger and rarely have one. A warm patch on the floor, or a bill that jumped, is how it starts. We isolate the line at the meter, then bring in the leak-locating specialist we work with to listen through the slab and mark the spot. Then it is a spot repair through one opening or a reroute overhead, and we say which we would do in your house.
Water heaters nearby: Westlake Village · Agoura Hills · Oak Park · Lake Sherwood
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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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Water heaters · Thousand Oaks
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. Ten minutes from the shop. Monday to Friday, 9am – 5pm.