Licensed & Insured · CA LIC #982663
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Pacifica, San Francisco, Burlingame, CA · Serving the Bay

PACIFICA, CA • LIC #982663 • 24/7

Tankless Water Heaters

Tankless Water Heaters in Pacifica and the Peninsula

Endless hot water, a much smaller footprint, and no standing tank losing heat all day. Tankless is a genuinely better system for many homes and the wrong choice for a few. We install and service tankless units across Pacifica, San Francisco, and Burlingame, and we will tell you honestly which camp yours is in.

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$75 OFF Any Plumbing Repair Over $500

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Tankless Water Heater Installation in Pacifica, San Francisco and Burlingame

A tankless heater fires only when a hot tap opens, heating water as it passes through rather than keeping a tank hot around the clock. The advantages are real: hot water that does not run out, roughly a fifteen to twenty year service life against eight to twelve for a tank, no standby heat loss, and a unit on the wall instead of a cylinder taking up floor space.

The honest tradeoffs are equally real. Installation costs more, because most conversions need a larger gas supply line, new venting, and often an electrical circuit. Flow rate rather than capacity becomes the limit, so a unit sized for two showers cannot also feed a dishwasher. And in a hard water area like this one, descaling is not optional maintenance, it is what keeps the heat exchanger alive.

Where it makes sense we will say so and price it properly, including the gas and venting work rather than quoting the unit and surprising you later. There is also a current offer on tankless installation worth asking about. Book a free estimate any time, no obligation.

What’s included

  • Tankless water heater installation
  • Tank to tankless conversion
  • Gas line upsizing and venting
  • Descaling and annual maintenance
  • Flow rate sizing for concurrent demand
  • Recirculation loop fitting

How the job goes

  • We check your gas supply capacity, venting route, and concurrent hot water demand, then quote the complete conversion rather than just the unit.
  • You approve the price, and our licensed tech does the work from a fully stocked truck, so most jobs finish in a single visit without a parts run.
  • We commission the unit, test flow and temperature across multiple fixtures at once, and set you up with a descaling interval suited to local water hardness.

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.

Deomen L., San Mateo, Google review
A tankless unit installed with upsized gas supply and new venting in a San Francisco utility room.

Why homeowners choose Works

Every tankless installation comes with upfront pricing, licensed and background-checked technicians, and a 100% satisfaction guarantee. Works Plumbing holds California contractor license #982663, carries full bonding and insurance, and holds an A+ rating with the Better Business Bureau.

We are a plumbing-only shop, which means the tech at your door has spent years on this exact work rather than splitting time across three trades. Our crews are drug tested as well as background checked, and dispatch is staffed by real people around the clock. No surprises, no commission-driven upsells, no pressure, ever.

Pro tip

Budget for descaling from the start if you go tankless here. Peninsula water is hard, scale builds on the heat exchanger, and a unit descaled every twelve to eighteen months will reach its full service life while a neglected one will not. It is a modest annual cost and it protects the most expensive component in the system.

See how we handle it:

Prefer to listen? Catch this topic on our homeowner podcast:

The Works Plumbing Podcast · Homeowner Tips

Ready to get it fixed?

Upfront pricing, licensed techs, and a real human on the phone 24/7 across the Peninsula.

Call 650-899-3542
Common Questions

Tankless
Water Heater
FAQs.

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Is tankless actually worth the extra cost?

If you are staying in the house, usually yes. You gain hot water that does not run out, lower standing energy loss, floor space back, and a unit that lasts fifteen to twenty years rather than eight to twelve. If you are selling within a couple of years, the payback window probably does not close in time and a good tank unit is the more rational spend. We will give you both prices and say which we would choose in your position.

What does a conversion involve beyond the unit?

This is where quotes differ most, so it is worth being clear. Most tank to tankless conversions need a larger diameter gas line to meet the burner demand, new stainless or concentric venting because the exhaust characteristics are different, condensate drainage on a condensing unit, and often a dedicated electrical circuit. Any quote that covers only the appliance is going to grow. Ours includes the whole job.

Will I really never run out of hot water?

You will not run out, but you can outrun it, and the distinction matters. A tankless unit delivers a maximum flow rate, not a maximum volume, so it will supply one shower indefinitely but may struggle with two showers plus a dishwasher if it was sized for less. We size on concurrent demand rather than household size, and where demand is genuinely high we will discuss two units or a recirculation setup.

How often does it need servicing?

Descaling every twelve to eighteen months in this area, which is more frequent than the manufacturer minimum because the water here is hard. Scale coats the heat exchanger, which reduces efficiency first and shortens the life of the most expensive part second. The service also checks the burner, the venting, and the condensate path. It is a short annual visit and it is what makes the fifteen to twenty year life realistic.

Do you offer financing?

Yes. Plumbing problems do not wait for payday, so you can spread the cost over 12, 24, or 60 months through our financing partners. Approval takes about 60 seconds, runs on a soft credit check that does not affect your score, and there is no prepayment penalty if you clear it early. Qualifying plans include 0% APR for the first 12 months.

Do you guarantee the work?

Every job is backed by our 100% satisfaction guarantee. If the same problem returns, call us and we come back out to make it right. We test our work before leaving rather than packing up the moment it looks finished, which is the main reason callbacks are rare. Parts and equipment carry their manufacturer warranty on top of our own guarantee.

Works Plumbing service area map, Pacifica HQ serving the San Francisco Peninsula
Where We Work

Serving Pacifica, San Francisco and Burlingame.

Three Peninsula locations put a stocked truck near you, from San Francisco down to Atherton, covering 22+ cities every day.

Real Customers

Real reviews from Peninsula homeowners.

Combined across our Pacifica, San Francisco, and Burlingame locations.

Review Stars

“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.”

DL
Deomen L.
San Mateo, Google Review
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Google reviews
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COUPONS THAT WON’T DRAIN YOUR WALLET.

Share these with a neighbor, or just mention the special when you schedule. Every offer works by phone or online.

$50
OFF • DRAIN CLEANING

Clogged Drain Special

Drain cleared or it’s free. Limit one per household.

Mention this offer when you schedule EXPIRES 12/31/2026
$500
OFF • TANKLESS INSTALL

Go Tankless

Save $500 on a new tankless water heater install.

Mention this offer when you schedule Expires 12/31/2026
FREE
CAMERA INSPECTION

Free Sewer Camera

With any drain cleaning service over $250. See the problem yourself.

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OFF · SENIOR & MILITARY

Senior & Military Discount

Thank you for your service. Ongoing: no expiration.

Mention this offer when you schedule Valid year-round
$99
FLAT · TOILET INSTALL

Toilet Install Special

Labor only with purchase of new toilet. Includes haul-away.

Mention this offer when you schedule Expires 12/31/2026
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