Plumbing · Property Services

Water Heater Replacement (Tank)

A water heater usually fails at the worst time, and the leak can damage a floor within hours. A replacement takes a few hours when done by a licensed plumber who handles the old unit, the new connections and the safety devices. NorTech connects you with vetted plumbers who set their own price, pull the permit and make sure the new heater meets current code.

Pricing set by local pros
90-day warranty
Before & after photos
Background checked
Book Water Heater Replacement (Tank)
Tell us about the job
Up-front — no surprises
Your pro backs the work for at least 90 days
Background-checked pros
Before & after photos

Need more hands? Pick a company that sends crews and choose how many technicians. Want a second pro for a different job? Add one right after you book.

Book several services with one pro. Pros set their own bundle discounts.
Compare Bids
Bigger or unusual job? Local pros bid on it and you pick who does the work.
See pros near you

Replace or repair, and what to choose

Tank water heaters generally last 8 to 12 years, and rust, leaks at the base or sediment-filled tanks mean replacement. A plumber can compare repair and replacement and recommend a size based on your household. Warranties, efficiency ratings and recovery rates differ between models, and a larger tank is not always better. If you are considering a tankless or heat pump unit, mention it when you book, since that is a different installation with different costs and requirements.

Code requirements that affect the install

Modern installations require seismic strapping in California, a pressure relief valve piped to a safe location, and often an expansion tank. Gas units need proper venting, combustion air and a sediment trap, while electric units need correctly sized circuits and disconnects. In garages, ignition sources may need to be raised or enclosed. A permit and inspection are part of the process, and a licensed plumber handles both and explains what the inspector will check. Clear a path to the heater and move stored items away from it before the visit, since the crew needs room to haul out the old tank safely.

What to expect on the day and after

The plumber shuts off water and gas or power, drains the old tank, removes it and sets the new heater, then makes connections and tests for leaks and proper venting. You will lose hot water for part of the day, and the new tank takes time to heat. Afterward, they will explain the temperature setting, the drain valve and the relief valve. Keep the permit sign-off and warranty registration, and flush the tank once a year to extend its life. Take a photo of the nameplate and the date code on the old unit, which helps with warranty questions and with disposal records.

When to book water heater replacement (tank)

Your water heater is leaking or rusting at the bottom.
Hot water runs out quickly or comes out lukewarm.
The heater is more than 10 years old and noisy.
An inspection flagged missing straps, venting or relief piping.
You are changing fuel type or relocating the heater.
You are remodeling and want to upgrade the capacity.
90-Day Warranty
Backed by your provider’s warranty. If covered work fails, your provider makes it right — free.

Looking for a licensed plumber? Bigger jobs and anything that needs a permit go to a verified California C-36 contractor. See licensed plumber services.

Frequently asked

Water Heater Replacement (Tank) — common questions

Most replacements take three to five hours. Changes to venting, location or fuel type can take longer, and the inspection is scheduled afterward. Ask the crew to confirm the arrival window.

Yes, water heater replacement is permitted work in California. Your licensed plumber arranges the permit and inspection so the installation is documented.

It absorbs the pressure from water expanding as it heats, protecting your plumbing and the heater. Many cities require one on closed systems. Ask about the correct pipe size for your home.

Tankless units save space and can lower energy use, but they cost more and may need gas line, venting or electrical upgrades. A plumber can compare options for your home.

Flush the tank yearly, test the relief valve, and set the temperature around 120 degrees. Ask the plumber about an anode rod check in hard-water areas.

The plumber guarantees the installation, connections and venting for 90 days. The water heater has a manufacturer warranty, usually longer for the tank, with its own conditions.

Didn’t find your answer? Nova, our AI assistant, is in the chat bubble in the bottom-right corner and can help anytime.

What homeowners say

Water Heater Replacement (Tank) reviews

Verified reviews from every city where NorTech connects customers with providers will appear here.

Be the first water heater replacement (tank) review

Your pro backs the work with a workmanship warranty — if covered work is not right, your pro makes it right, free. Book with confidence and tell the Bay Area how your pro did.

Book Water Heater Replacement (Tank)

Check your coverage

Is Water Heater Replacement (Tank) available near you?

NorTech connects you with vetted local providers for water heater replacement (tank). Enter your ZIP to check coverage and see your price.

Are there pros in your area?

Enter your ZIP code and we’ll point you to your local hub.

or search your city
AthertonPortola ValleyWoodsideLos Altos HillsHillsboroughBelvedereTiburonRossSan FranciscoPalo Alto

Browse the full coverage area →

Explore more

Related home services

Homeowners who book water heater replacement (tank) often need a hand elsewhere too. Browse related NorTech services — pricing set by local pros, vetted local providers, and a guarantee or warranty suited to each service.

Faucet Repair & Replacement

Drips fixed or a fresh faucet installed — any brand, kitchen or bath, clean and leak-free.

Learn more

Toilet Repair, Installation & Upgrades

Running toilet, flapper, or fill valve fixed, a new toilet installed, or a bidet seat or full sm…

Learn more

Garbage Disposal Repair, Installation & Replacement

A jammed or dead disposal repaired, or the old unit swapped for a new one — every electrical and…

Learn more

Showerhead & Shower Valve

Upgrade a showerhead or replace a leaking valve — no drywall cutting on most jobs.

Learn more

Under-Sink & Supply Line Repair

Slow drips, corroded lines, and P-trap leaks tracked down and stopped before they spread.

Learn more

Bathroom & Kitchen Caulking

Old caulk out, fresh silicone in — clean, watertight beads around tubs, showers, and sinks.

Learn more

Water Heater Repair, Installation & Maintenance

Flush and maintenance, no-hot-water and leak repairs, or a full tank or tankless replacement — o…

Learn more

Whole-Home Repipe

Full repiping for aging or failing plumbing — main-line and whole-house work, booked with a veri…

Learn more

Drain Cleaning & Clog Clearing

Slow or clogged drains cleared with a real snake/auger, not just a bottle of chemicals.

Learn more

Book in minutes

Ready to book water heater replacement (tank)?

Choose a background-checked local provider, see your price the moment you enter your ZIP, and lock in a time that works — backed by your pro’s 90-day workmanship warranty.

Book Water Heater Replacement (Tank)Compare Bids
Prefer to compare bids yourself?Get quotes from independent local contractors — you pick who does the work.Compare →