24/7 Emergency Line Open
Claremont, CA · Los Angeles County
Claremont Plumber for Leaks, Clogs and Water Heater Failures
Licensed and insured plumbers answer the dispatch line around the clock for homes and businesses in Claremont and the cities around it. Call, describe what the water is doing, and a plumber serving your area will tell you what to shut off first and whether same-day service is available.

- Licensed and insured plumbers
- Same-day service when available
- 24/7 emergency dispatch
Emergency plumber in Claremont: what to do before the call connects
Water that will not stop, a toilet that backs up into the shower and a gas smell each call for a different first move. These steps buy time while dispatch finds a plumber serving your area.
- Close the main water valve. In many homes it sits near the street-side hose bib, along the garage wall or in the meter box by the curb. Turn it clockwise until it stops.
- Take the water heater out of the picture. If the tank is leaking or the shutoff will not close, switch off its breaker or turn the gas control to pilot so it does not heat an empty tank.
- Stop sending water down the drains. When sewage is rising in a tub or floor drain, do not flush, run the washer or use the dishwasher until the line is cleared.
- Protect what you can reach. Lift electronics and rugs out of the wet area, and photograph the damage with the time so repair and any insurance paperwork have a record.
The dispatch line is open day and night, weekends and holidays included. Same-day service depends on availability when you call, so the dispatcher confirms it with you instead of promising a time. The number is (626) 687-0217.

Plumbing services for Claremont homes and businesses
Find a hidden leak
Meter checks, listening gear and thermal tools to locate a leak before any wall or floor is opened.
Slab leak repair
Warm floor spots or a running meter with no fixture on can mean a line under the concrete.
Clear a clogged drain
Sink, tub, floor drain and main line stoppages, cleared and then checked with a camera when needed.
Fix a sewer line
Backups in several fixtures at once, roots and broken sections between the house and the main.
Restore hot water
Pilot, thermostat, element and leak diagnosis on gas and electric tank heaters.
Replace a water heater
Sizing, venting, bracing and the permit questions that come with a new tank.
Go tankless
Gas and electric tankless units, flushing, and conversions from a tank.
Repipe or repair pipes
Pinhole leaks, galvanized supply lines and whole-house repipe decisions.
Repair a water line
The line from the meter to the house, shutoff valves and pressure regulators.
Gas line work
Appliance hookups, new runs and repair of aging gas piping, with a pressure test.
Repair a fixture
Running toilets, dripping faucets, worn supply valves and fixture swaps.
Fix a disposal
Jams, leaks and hum-but-no-spin units, plus replacement and dishwasher connections.
Dry out water damage
Water removal and drying after a leak or flood, with mold testing where it is warranted.
Treat hard water
Softeners and whole-house filtration sized to the water that comes to the meter.
Plumbing for businesses
Restrooms, kitchens, retail and multifamily buildings, from repairs to repiping.
Water on the floor right now?
Call dispatch, describe what you see, and learn what to shut off while a plumber is lined up for your address.

What Claremont water, pipes and sewer rules change about a plumbing job
A job here starts with three questions: what the water is like, how old the pipe is, and whose side of the line the problem sits on. The facts below come from public sources, and each one is linked.
| What is true in Claremont | What it changes on the job | Source |
|---|---|---|
| Water from Golden State Water, with a 2026 report showing hardness averaging 190 mg/L, about 11 grains per gallon | Scale builds inside tank heaters and on fixtures, so flushing, anode checks and softener sizing matter | Golden State Water 2026 report |
| The typical Claremont home was built around 1966, and about two thirds of homes are detached single-family houses | Original supply lines and drains may still be in service, so ask the plumber to identify the material before any repipe is quoted | Census-based housing profile |
| The owner maintains the sewer lateral from the building to the city main | A stoppage or break between the house and the main is repaired on the owner's side, so ask for camera footage that shows where it is | Claremont Municipal Code 13.02.010 |
| The Building Division at 207 Harvard Avenue handles permits, at (909) 399-5460 | Ask before work starts who pulls any permit and who schedules the inspection | City of Claremont Building Division |
Low pressure or an outage that reaches the whole block is a Golden State Water matter at the street. Everything past the meter is a plumbing job. What each repair involves and what affects the final bill is covered on the plumbing cost page, and a plumber can only quote a real number after seeing the pipe.
Not sure it is an emergency?
Describe the problem to dispatch and get a straight answer on whether it needs a plumber tonight or can be scheduled.
Sewer backups, water heater failures and storm water: three jobs with local wrinkles

A drain that backs up in more than one fixture
When the tub gurgles as the washer drains, the blockage is usually in the main line, not in a single trap. In Claremont the lateral between the house and the city main is the owner's to maintain, so a camera pass that shows where the blockage or break sits decides who fixes it. The city's Community Services line, (909) 399-5431, handles the main itself. The city also asks residents to keep wipes, grease and paper towels out of the pipes, because older lines with roots or grease clog fast. See sewer line repair and replacement for how the camera work goes.
A water heater that leaks or runs out of hot water
A tank that weeps at the base is finished, while one that runs lukewarm may only need an element or a thermostat. California requires residential water heaters to be braced with straps in the upper and lower thirds of the tank, so a replacement should include that bracing. With Claremont water near 11 grains per gallon, sediment builds steadily, which is worth raising whichever way you go. Start with water heater repair if the tank is still young, or replacing the heater if it is not.
Storm water or groundwater inside the house
Nearly half a foot of rain fell across the Claremont area in a run of atmospheric river storms around New Year 2026, and in April 2023 groundwater seeped up into homes in the Stone Canyon neighborhood. A plumber stops any supply or drain source first. Removal and drying follow, which is the scope of water damage restoration. Rebuilding walls and ceilings is a different trade.
Where dispatch sends plumbers around Claremont
Claremont sits at ZIP code 91711, at the eastern edge of Los Angeles County beside San Bernardino County. Distances below are measured from Claremont.
Within about 15 minutes
Further out
- Covina about 9.8 miles.
- Chino about 10.2 miles.
- Diamond Bar about 10.5 miles.
- Azusa about 11.3 miles. Azusa is on the edge of the range, so availability is confirmed by phone.
- Almora about a 19-minute drive.
- West Covina about a 20-minute drive.
Each town has its own page with the ZIP codes dispatch covers there. The full list sits on the service area page.
Questions callers ask dispatch
Can I reach a plumber in Claremont at night or on a weekend?
Yes. The dispatch line answers around the clock, including overnight, weekends and holidays. Call, say what the water or the drain is doing, and the dispatcher routes the call to a licensed and insured plumber serving your area. While you wait, shut off the water at the main valve if anything is spraying or spreading.
What decides whether a plumber can come the same day?
Same-day service depends on who is available when your call comes in, so it is offered when available and never promised in advance. The dispatcher confirms openings for your address while you are on the line. Having the street address, the problem, and the location of the main shutoff ready speeds that conversation.
A rental house is leaking badly. Who should I call first?
Stop the water first if you can reach the shutoff, then tell the landlord or property manager right away, because the lease and the owner decide who authorizes repairs. If you are the owner or have the owner's permission, call dispatch directly. Photograph the damage and note the time the leak started so repair and any claim have a record.
Is it better to call right away or wait until morning?
Call right away when water is running that you cannot stop, sewage is coming up through a drain, the ceiling is sagging or wet, or there is any gas smell. A slow drip under a sink with the supply valve closed can usually wait for a scheduled visit. If you are unsure, call and describe it, and the dispatcher will help you sort out which one you have.
What does a plumber check when the whole house has no water?
The first questions are whether the neighbors are out too and whether the meter is spinning. Water service in Claremont comes from Golden State Water, so a block-wide outage is a utility matter, while a single home with no water points to a closed or failed shutoff, a broken line past the meter, or a pressure regulator that has failed. A plumber checks those in order before opening any wall.
Plumbing problem in Claremont?
Call now and reach dispatch for a licensed and insured plumber serving your area. Same-day service is offered when available.

- Licensed and insured plumbers
- Same-day service when available
- 24/7 emergency dispatch
