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Pacifica, San Francisco, Burlingame, CA · Serving the Bay
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Tankless water heater installation in Palo Alto, CA is as much about gas and permits as it is about the heater. Works Plumbing sizes the unit for your household, checks whether your gas piping can feed it, and handles the City steps that come with a tankless conversion.
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A tankless heater makes hot water on demand instead of keeping a tank hot. Done right, it frees floor space and ends the wait for a tank to recover.
Planning a switch? Request a tankless estimate from Works Plumbing.
Tankless works well when:
It may not be the best fit when your gas service cannot support the load without major work, or when you would rather go all-electric. In that case, a heat pump water heater is worth comparing, and we cover that below.
We count fixtures that may run at once and look at incoming water temperature to choose a unit with enough flow.
We review appliance loads and gas line sizing. Our gas line repair service in Palo Alto covers any upsizing or new branch needed.
Tankless units vent differently from tanks. We plan the vent route, condensate drain if needed, and wall mounting.
We confirm requirements with the City and prepare the documents the checklist calls for.
We mount the unit, connect water and gas, set the temperature, and test for leaks and flow. We walk you through the controls and maintenance.
Palo Alto actively supports heat pump water heaters. The City of Palo Alto Utilities runs a heat pump water heater program, and its FAQ page lists a standard 65 gallon install as starting “at about $2,100,” with an average project cost of $2,800. The same page says the City “is no longer enforcing a ban on gas water heaters in new homes.”
Both options have a place:
| Factor | Gas tankless | Heat pump water heater |
|---|---|---|
| Fuel | Natural gas from the City utility | Electricity |
| Space | Small, wall-mounted | Tank sized, needs air around it |
| Gas piping | May need upsizing and a Utilities Application | Not needed |
| Electrical | Small circuit for controls | Dedicated circuit; load calculation if electric load is added |
| Hot water supply | On demand | Stored |
We help you compare the two for your home, and we price the one you choose.
A tankless conversion changes more than the heater. Plan for these:
We explain each of these at the estimate so nothing comes as a surprise on install day.
In a long, single-story house, hot water can take a while to reach the far bathroom. A tankless unit does not change that travel distance.
Some models include recirculation, and others can work with an add-on pump. We look at the layout of your home and tell you whether recirculation is worth adding.
The City’s 2025 water quality report lists hardness at 8.1 to 112 ppm, averaging 62 ppm. That is soft water on average, which is kind to a heat exchanger.
Even soft water leaves some mineral behind over time. We recommend periodic descaling based on the unit’s manual and how much hot water you use, and we install isolation valves so flushing is simple.
We at Works Plumbing install tankless water heaters throughout the Peninsula. See our Palo Alto plumbing services, or read about our water heater repair in Palo Alto if your current tank just needs fixing.
Can I get an Instant Permit for a tankless water heater in Palo Alto?
No. The City’s water heater replacement checklist limits Instant Permits to heaters in the same location, not tankless, with no higher BTU demand. We confirm the permit path with Development Services before work starts.
What is a Utilities Application and when do I need one?
Palo Alto’s checklist requires a Utilities Application only if there will be an increase in BTU demand for tankless. Because the City of Palo Alto Utilities supplies the gas, it needs to know when a home’s gas load goes up.
Will my gas line be big enough for a tankless heater?
Sometimes, and sometimes not. We add up every gas appliance’s demand and check pipe sizes. If the line is too small, we upsize it, and the City may require an isometric gas riser diagram.
Is a heat pump water heater a better choice in Palo Alto?
It depends on your home. The City supports heat pump water heaters through its own program, and gas water heaters remain allowed. We compare both for your space, gas service, and electrical panel.
Does Palo Alto’s water damage tankless heaters?
Palo Alto’s water is soft on average, at 62 ppm in the City’s 2025 report. A tankless unit still benefits from periodic descaling, and we install isolation valves to make it easy.
Where do I apply for the permit?
Palo Alto’s Development Services handles building permits through its online Accela Citizen Access portal, with offices at 285 Hamilton Avenue. We handle the application as part of the job.
The right tankless install starts with the gas math and the permit path. Book a tankless water heater estimate with Works Plumbing, and we will size it, plan it, and price it upfront.
We’re highly experienced with: Leak detection Drain cleaning Drain repair Rooter services Water heaters Sprinkler systems Tankless water heaters Toilet repair & installation Faucet repair & installation Shower repair & installation Trenchless sewer repairs Camera inspections Garbage disposals Gas lines Gas valves Burst pipes Pipe repair Sump pumps Sewer repairs Hydro jetting Pipelining Plumbing repairs
Gas Tankless Water Heater Installation – Efficient Heating for Your Needs Looking for gas tankless water heater installation? Works Plumbing specializes in this modern heating solution, providing instant hot water without the limitations of traditional tanks. Our skilled technicians guide you through the selection and installation process, ensuring optimal performance and energy savings. By choosing gas tankless systems, you can enjoy reduced energy bills and a smaller carbon footprint. Reach out today for expert advice and a seamless installation experience tailored to your home! Plumbing Repair Toilet Repair Shower Repair Hydro Jetting Camera Inspection Leak Detection Gas Line Repair Trenchless Pipe Repair Water Line Repair Sump Pumps Garbage Disposal Drain Cleaning Faucet Repair Hot Water Heater Repair Tankless Water Heaters
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Palo Alto’s Building Division separates simple water heater swaps from projects that change the system. Its Residential Water Heater Replacement checklist, which cites the 2025 California Building Standards Code as adopted by the Palo Alto Municipal Code, states: “Water heater permits are available as Instant Permits if they are in the same location as the existing water heater, not tankless, and do not have a higher BTU demand than the existing.”
A tankless conversion fails that test by definition. The checklist goes further on the gas side. A Utilities Application is required “only if there will be an increase in BTU demand for tankless,” and an isometric gas riser diagram for the whole system may be required if gas demand increases. A residential load calculation is required if the project adds electric load.
Here is why that matters. A tank heater warms water slowly over a long period, so its burner is modest. A tankless unit heats water as it flows, which often takes a much larger burner. Gas piping sized for the old tank, and for the furnace, range, and dryer sharing it, may not deliver enough.
So we start with the numbers. We total the gas demand of every appliance, compare it to the unit you want, and check pipe sizes and lengths. If demand goes up, we prepare what the City needs for the Utilities Application and riser diagram, and we confirm the full permit requirements with Development Services before installation.
We also serve these neighboring Peninsula towns.
We’ve earned our reputation one happy homeowner at a time.
“I had a backed up kitchen drain and David from Works Plumbing came out and cleared the line in a matter of minutes. Very professional and very knowledgeable. Definitely recommend!”
“Great professional and quick service! Shamir was friendly, efficient, and professional. He fixed the leaking problem in my sink and garbage disposal in under an hour. Highly recommend!”
“Thank you again for another job well done, and thank you for responding right away. I will continue to recommend Works Plumbing because they respond right away and get the job done efficiently.”
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