Plumber Guides and Answers

Decision flow for the guides: shut the main valve for leaks, leave for gas smells, or open the matching guide.

Sunset Coast Plumbing arranges a local plumber for homes in Santa Monica and the Westside, and these guides are the plain answers we wish every homeowner had before the first phone call. They cover what common plumbing jobs cost, what moves the price, what you can safely check yourself and when the law says a contractor has to do the work. When you are ready, you can ask for a written quote, or read how a job works on the how it works page.

Prices on these pages are guides taken from published sources, not quotes. The written price comes after a visit.

Where should I start if something is leaking or has stopped working?

Start with the guide that matches what you can see: water where it should not be, no hot water, a toilet that will not stop running or a drain that will not clear. If water is escaping fast, shut off the main valve first, then read the burst pipe and leak guides below. For any gas smell, leave the building and call SoCalGas from outside. The area pages cover each city we serve and who handles permits there.

The guides by topic

Every guide on this site is listed below under the kind of job it covers, from water heaters and leaks to toilets, repiping, gas lines and permits. Each line says what the page answers, so you can pick the one that matches your problem and skip the rest.

Six topic groups for the guides, from water heaters and leaks to toilets, pressure, gas and costs.

Water heaters (repair, replacement, tankless)

Anode rod water heater replacement: When a water heater anode rod needs replacing, how to check it, what the job costs from a published guide, and when a Santa Monica plumber should do it.
Apartment with no hot water: the California rules: No hot water in a California apartment is a habitability problem. Learn what the landlord owes you, your repair options and how Santa Monica rent control fits in.
Can a broken water heater cause a high electric bill?: Yes, a faulty electric water heater can double a power bill. See the causes, a simple way to estimate its draw, and which fixes cost little in Santa Monica.
Emergency water heater repair in Santa Monica: Water heater leaking, no hot water or a gas smell? Here is what counts as an emergency in Santa Monica, what the repair bill is made of, and how to book a visit.
Hot water heater element replacement: Replacing a burned-out electric water heater element: how to confirm it is the culprit, what the job costs in Los Angeles, and what to do and not do.
Hot water heater replacement: Replacing a hot water heater in Santa Monica: when to do it, what it costs from a published guide, tank or tankless, and what a Westside swap involves.
Hot water pressure low: Cold water strong but hot water weak? Find where the restriction sits, from one clogged aerator to a sediment-choked water heater, and what a fix typically involves.
Hot water pressure regulator: Most homes have no separate hot water pressure regulator. How the whole-house valve, expansion tank and relief valve protect a heater, and why hot flow runs weak.
How often should a water heater be replaced?: A tank water heater typically lasts 10 to 15 years, tankless about 20. Warning signs, what shortens life on the Westside, and what replacement requires.
How to repair water heater leakage: Find where a water heater is leaking, which leaks are a quick fix and which mean a new tank, and what to shut off first. A Santa Monica and Westside guide.
Plumbing permit for a water heater: Do you need a permit to replace a water heater in Santa Monica or on the Westside? What the city code says, who pulls it, and what an inspector looks for.
Repair gas water heater: Gas water heater won't light or runs cold? See common faults, what repairs run (about $100 to $650), what a homeowner may touch, and when to replace instead.
Rheem electric water heater repair: Rheem electric water heater not heating? Check the breaker and the red reset button, learn which element failed, see repair costs, and know when to replace.
Shower with no hot water: Cold shower but hot water elsewhere? Learn to separate a shower valve fault from a failing water heater, with checks you can do safely in Santa Monica.
Tank vs tankless water heater in Santa Monica: Tank or tankless for a Santa Monica home? Costs, lifespan, gas and electric needs, and which household fits which unit, with sources and a written quote.
Tankless gas water heater repair: Tankless gas water heater not working? Common error causes, what a flush fixes, what only a contractor may touch, and what repairs cost in Los Angeles.
Tankless water heater installation cost, labor and add-ons: Tankless water heater installation often lands between about $1,300 and $3,700 nationally. See labor, gas line, permit and add-on costs, plus tank prices.
Tankless water heater installation service: Tankless water heater installation in Santa Monica: gas line upsizing, venting, permits, energy code, typical costs and the questions to put to a plumber.
Water heater expansion tank replacement: When a water heater expansion tank needs replacing, how to test it, why one is often needed on a closed system, and what the swap involves.
Water heater repair plumber in Santa Monica: Water heater repair in Santa Monica and the Westside: what usually fails, what a repair costs against a replacement, and how to book a written quote.
Why have I got no hot water?: Cold taps at home in Santa Monica? Likely causes for electric, gas, tankless and apartment heaters, what to check safely, and when to call a plumber.

Leaks and burst pipes

Burst pipe prevention for Santa Monica and Westside homes: Most burst pipes give warnings first. A pressure check, a shutoff you can find, and a yearly walk-through can head off a flood in Santa Monica and nearby homes.
Ceiling water leak: what to do and who to call: Water coming through a ceiling? Shut off the water and the power to that area, find the source, protect the room, and learn what repair and drying usually involve.
Choosing a slab leak repair company: Picking a slab leak company in Santa Monica: license checks, detection method, written scope, permits and the sales pitches that should make you pause.
Does homeowners insurance cover slab leak repair?: Homeowners policies usually cover sudden water damage from a slab leak but not the pipe fix itself. What decides it, and how to document the leak for a claim.
Does insurance cover a burst pipe?: A burst pipe is usually treated as sudden and accidental damage, a slow leak is not. What California's Department of Insurance says, and what to document.
Emergency plumber for a burst pipe on the Westside: Burst pipe in Santa Monica or the Westside? Shut the water off first, then read what repairs usually cost, who pays when you rent, and how to book a visit.
How much slab leak repair costs in Santa Monica: What slab leak and burst pipe repairs cost in 2026: spot repair, reroute, tunneling and repipe ranges, detection fees, and what changes a quote.
How to know if a pipe burst: Seven signs a pipe has burst in a Santa Monica home, a meter test that settles it, what to do in the first ten minutes, and when to call a plumber.
How to repair a pinhole leak in copper pipe: Stop a pinhole leak in copper pipe: shutoff, temporary patches, a lasting repair, what to do about wet ceilings and walls, and when pinholes mean repiping.
Leaking PVC pipe joint repair: A leaking PVC joint is a drain, a threaded fitting or a glued supply joint, and each has a different fix. Identify yours, repair it safely, or decide to call a plumber.
Leaking water pipe repair: the fix depends on the pipe: How a leaking water pipe is repaired depending on whether it is copper, PEX, galvanized, CPVC or PVC, what you can do yourself, and what needs a plumber.
Plumber for leaks in Santa Monica: Water where it shouldn't be? Triage steps, how hidden leaks get located, who pays for the damage, and how we arrange a Westside plumber visit.
Slab leak repair or repipe: which one fits your house: Fixing one slab leak or replacing the whole supply system? Compare routes, guide prices and warning signs for Santa Monica and Westside homes before you choose.
Water spots on the ceiling but no leak: Ceiling stains with no drip can come from old leaks, condensation, roof or AC drain trouble. Learn how to test whether a stain is active before you paint.
What causes a pipe to burst?: Pipes burst from pressure spikes, corrosion, ground movement and, rarely here, frost. Learn the warning signs and what to do in the first minutes.
What plumber leak detection costs: Leak detection usually costs $150 to $600 before any repair. See prices by method, what pushes a quote higher, and what repairing the leak adds on top.

Drain cleaning and clogs

Home remedies for a clogged sink drain: Which kitchen and bathroom sink clog remedies work, which to skip, the order to try them in, and the signs that mean the problem is deeper in the line.
How much a plumber to unclog a toilet costs in Santa Monica: Fixr puts toilet unclogging at $200 to $700 nationally, hydro jetting at $250 to $800. See what moves the price in Santa Monica and which questions to ask before you agree.
How to drain a clogged bathtub: Standing water in the tub usually means hair near the stopper. Pull it with a bent wire, try dish soap and hot tap water, then snake it or call for help if it stays.
How to unclog a bathroom sink: Slow or standing water in a bathroom sink usually means hair and soap scum in the stopper or trap. Five fixes from easiest to hardest, and when to stop.
How to unclog a dishwasher drain: Dishwasher full of dirty water? Work through the filter, drain hose, high loop and disposal knockout in order, and learn when the blockage is in the sink line.
How to unclog a garbage disposal drain: Step by step, how to clear a clogged garbage disposal and its drain without hurting yourself or the unit, and when a Santa Monica plumber should take over.
How to unclog a kitchen sink: Step-by-step fixes for a clogged kitchen sink: plunger, trap cleaning, snake, what to avoid, and the signs that the clog is deeper in the drain line.
How to unclog a shower drain: Clear a slow or standing-water shower drain with a hair tool and a plunger, skip the baking soda myth, and know when a Westside plumber should step in.
How to unclog a washing machine drain: Washer standing water, overflow at the standpipe or a slow drain? Check the machine first, then the hose and standpipe, then call a Westside plumber for the line.
Plumber cost to unclog a sink: What a plumber typically charges to unclog a sink, from about $100 for a simple kitchen clog to $350 or more, plus snaking, jetting, trip fees and after-hours rates.
Plumber for a clogged shower drain: A shower that pools around your ankles: what you can pull out yourself, when the clog is deeper, and what a plumber visit for a shower drain costs.
Plumber for clogged toilet in Santa Monica: A toilet that will not clear in Santa Monica or the Westside: what a plumber does, what you can try first, rough costs, and when the clog sits in the drain line.
Why is my sink draining slow?: A slow sink usually has a partial clog: hair, grease, soap scum or a vent problem. How to tell which, what to try first, and when a Santa Monica plumber is needed.

Faucets, sinks, showers and disposals

Garbage disposal installation service in Santa Monica: What a garbage disposal removal and installation visit covers, the published cost range, what changes the price, and what to settle before the old unit comes out.
How to fix a leaky bathroom sink faucet: Water under or around a bathroom faucet comes from one of five spots. Find yours, fix the spout, handle, base, supply line or drain, and know when to replace.
How to fix a leaky faucet: Fix a dripping kitchen, bathroom, tub or outdoor faucet by type: compression, cartridge, ball or disc. Steps, parts, and when a Santa Monica plumber is cheaper.
How to fix a leaky faucet in the tub: Fix a dripping tub faucet or spout by type: cartridge, stem or washer, how to shut off the water, Moen handles, and leaks from the pipes under a sink.
How to fix a leaky outdoor water faucet: A dripping hose bib wastes water and can rot wall framing. Find where it leaks, fix the handle, spout or connection, and know when a Santa Monica plumber is needed.
How to fix a leaky shower faucet: A dripping shower faucet is usually a worn cartridge, stem or washer. Identify your valve, swap the part and know when the wall behind needs a plumber.
How to repair a leaking pipe under the sink: Find which pipe under the sink is wet, tighten or replace the right part, and know the signs that a plumber should take over. Written for Westside homes.
Kitchen faucet low water pressure: Weak flow at the kitchen faucet only? Check the aerator, angle stops, hoses and cartridge first, then learn when low pressure is a house-wide problem.
No water comes out of the hot faucet: Cold works but the hot faucet gives nothing? Work out whether it is one fixture or the whole house, check the heater and valves, and know when to call a plumber.
Plumber for garbage disposal repair in Santa Monica: Disposal hums or will not turn? Typical repair and install prices in Santa Monica, quick safe checks, and shower leaks and faucet fixes handled on the same visit.
Plumber for shower leak: Water behind a shower wall or on the ceiling below? Where shower leaks start, what a plumber tests, plus weak tub flow and disposal installation questions.
What a plumber charges to install a faucet or disposal: Published 2026 ranges for faucet installation, garbage disposal installation and shower repair, what raises each price, and what a Santa Monica quote should list.

Plumber

Cost of replacing plumbing in an old house: Replacing the plumbing in an older Santa Monica home runs about $6,000 to $20,000 by published guides. See what moves it, partial versus whole house, and hidden extras.
Emergency plumber in Santa Monica: Water gushing, gas smell or a backed-up toilet in Santa Monica? What counts as an emergency, what to shut off first, and what a rush visit costs.
How much should a plumber cost per hour?: Published 2026 plumber hourly rates, trip fees, minimum charges and flat-rate jobs, with notes for Santa Monica and Los Angeles County and how to compare quotes.
How to stop water leakage from plastic pipe: Fixing a leaking PVC, CPVC or PEX pipe at home: what holds, what only buys time, and when a Santa Monica plumber needs to take over.
Plumber cost in Santa Monica: What a plumber charges for visits, hours, emergencies and common jobs, with sourced national ranges and how Santa Monica quotes are built. Ask for a written price.
Plumber service in Santa Monica: How plumber service works in Santa Monica and the Westside, which jobs it covers, what a visit costs as a guide, and how to book with a written quote.
Plumber smoke test cost: Yelp says a plumber smoke test typically costs $250 to $300 nationally. See what a test finds, what changes the price, and how it differs from a camera or gas check.
Plumbing for a bathroom remodel in Santa Monica: Plan the plumbing before the tile: rough-in, moving fixtures, old pipes, permits and what to ask a Santa Monica plumber to put in writing for a bath remodel.
Plummer or plumber: which is right, and what to expect in Santa Monica: Plumber is the right spelling, plummer is a typo. What a Santa Monica plumber costs, what to have ready for the visit, and where crawlspace and attic pipes fit.
What a plumber service call costs: A plumber's service call fee often runs $75 to $250 before repair work. What it covers, when it is credited, and questions to ask before a visit in Santa Monica.
Why is my water bill so high?: A sudden jump in your Santa Monica water bill usually means a leak, irrigation or a billing quirk. A meter test and a checklist show which in about an hour.

Repiping and pipe replacement

Galvanized pipe replacement cost: Galvanized pipe replacement costs: the HomeGuide national range, PEX versus copper, what pushes a quote up, and what the written estimate should itemize.
Galvanized pipe replacement in Santa Monica: Replacing galvanized steel supply pipe on the Westside: warning signs, PEX versus copper, how many days it takes, permits, and what about polybutylene.
How often should you repipe a house?: No pipe has a fixed repipe date. See the signs that matter for galvanized, copper and PEX in Southern California homes, and when a repipe quote is worth getting.
How to repipe a house: How a whole-house repipe runs, from shutoff to patched drywall: PEX or copper, slab homes, permits and what to put in a written quote on the Westside.
PEX vs copper for a Westside repipe: PEX or copper for a Westside repipe: cost, flow, lifespan, coastal and hillside factors, and which suits an older Santa Monica or Brentwood home.
Polybutylene pipe replacement: Spot polybutylene pipe, understand why it fails and learn what replacing it with PEX or copper involves for a Santa Monica or Westside home. Quote set in writing.
Repipe a house in Santa Monica: Whole-house repiping on the Westside: spotting a failing system, PEX or copper, permit rules, cost ranges and what happens to your walls. Written quotes first.
Repipe house cost in Santa Monica: What repiping a Santa Monica or Westside house costs in 2026: ranges by house size and pipe material, what moves the price, and how to cut it.
Why repipe a house?: Why Westside owners repipe: pinhole leaks, rusty water, weak pressure, polybutylene and old galvanized lines. Learn the signs that point to a repipe.

Water pressure and valves

How to adjust a water pressure regulator valve: Adjust a home pressure regulator with a gauge and one wrench: target psi, the turn direction, signs of failure, and when replacement needs a plumber.
How to fix low water pressure in a house: A fix ladder for weak water pressure, from free checks to a booster pump, with the hillside physics that explain why Brentwood and Malibu homes struggle.
Plumber for low water pressure in Santa Monica: Weak shower, slow-filling tubs or pressure that dropped overnight? How a plumber finds the cause in Santa Monica and Westside homes, and what fixes it.
Sudden low water pressure in a house: Pressure fell overnight? Check the neighbors, the meter valve, the regulator and the hot side in about 15 minutes, and learn which signs mean a hidden leak or a failed part.
Water pressure regulator installation cost in Santa Monica: Published guides put a water pressure regulator install near $200 to $700. See what moves the figure, what the table leaves out, and how to get a written quote.
Where is a water pressure regulator located?: Where the pressure regulator hides in a Santa Monica home: follow the pipe from the meter, check garage and utility spots, and learn how to tell if you have one.
Whole house water pressure regulator: A whole house water pressure regulator holds street pressure at a safe level. Learn the 80 psi code limit, signs of failure, replacement cost and permits.
Why is my water pressure low?: Low water pressure at one tap, the whole house or only hot water points to different causes. Use this symptom guide to find yours, then decide on a fix.

Toilets

How much a plumber charges to replace a toilet in Santa Monica: What a plumber charges to replace a toilet in Santa Monica in 2026: labor, the toilet itself, extras like a flange or valve, and when repair costs less.
How to repair a running toilet: A toilet that will not stop running is nearly always a worn flapper, a high float or a tired fill valve. Find the culprit with a dye test and fix it in an hour.
How to repair a toilet fill valve: A toilet that hisses, refills forever or never fills is often a worn fill valve. How to test it, swap it in about 30 minutes, and set the water level right.
Leaky toilet repair: Water at the base, under the tank or from the supply line? Find the leak, see what a homeowner can fix, and know when a Santa Monica plumber should take over.
Plumber toilet repair in Santa Monica: Running, leaking, rocking or weak-flushing toilet? Which parts fail, which fixes are yours to do, what a plumber charges, and when to replace instead.
Toilet flapper repair: Toilet running or hissing? Test the flapper with dye, pick the right replacement, fit it in ten minutes, and know when the problem is the fill valve or seat.
Toilet flush repair: Weak flush, handle that sticks, or water that runs after flushing? Find which part is failing, what you can fix in 20 minutes, and when to book a plumber.

Permits, codes and inspections

Backflow device testing cost: What a home backflow device test costs in Los Angeles in 2026, what is included, what a failed test adds, and how the yearly test works for Westside households.
Backflow prevention testing in Santa Monica: Annual backflow assembly testing in Santa Monica and the Westside: who must test, what a test involves, typical cost, failed tests and who can do the work.
Backflow testing for Bend, OR searches, and how it works on the Westside: Searching backflow testing in Bend, OR? We serve Santa Monica and the Westside of LA. Here is how the yearly backflow assembly test works in California.
Gas plumber in Santa Monica: who may do the work: Who may work on gas piping in California, how to check a contractor's license, what needs a permit and inspection, earthquake valves and backflow tests.
How to do backflow testing, and how to pull a plumbing permit: Backflow testing is done by a qualified tester with a gauge kit, not by the owner. See what gets tested, how often, and how plumbing permits work in Santa Monica.
Mobile home plumbing inspection: Buying or living in a mobile or manufactured home? What a plumbing inspection covers, who regulates park and home work in California, and what to ask first.
Residential gas piping codes in California: How California's plumbing code treats home gas piping: permits, inspection stages, pressure testing, sizing and who may do the work. For Santa Monica and the Westside.

Gas lines

1/2 inch flexible natural gas line: what is allowed: Where a 1/2 inch flexible gas connector is allowed in California, what pipe natural gas lines use, why gas work needs a permit, and what a gas line costs.
Emergency gas shut off valve for earthquakes: When to shut off gas after a quake, what a seismic gas valve does, who can install one on a Westside home, and who resets it. Facts from SoCalGas.
How to reset an earthquake gas shut-off valve: Your earthquake gas valve tripped. How to reset it safely, who must handle the meter, what Santa Monica requires, and what installing one involves.
Plumber gas line cost in Santa Monica: Gas line prices per foot, for repairs, extensions and new runs, with permit costs and what changes them in Santa Monica. Sourced national ranges, written quote.
Plumber gas line in Santa Monica: Gas line install, repair, move or cap in Santa Monica and the Westside: who is allowed to do it, what it costs, permits, and what to do if a pipe is hit.

Water softeners and treatment

Hard water scale prevention in Santa Monica: Santa Monica's delivered water averaged 161 ppm hardness in the city's 2022 report. See what that means for scale, and how to slow it, clean it and measure it.
How to install a water softener: Installing a salt-based water softener yourself in Santa Monica: location, bypass, drain, hardness settings, scale removal, and where a plumber is the safer call.
Water softener installation cost in Santa Monica and the Westside: Water softener installation usually runs about $1,100 to $3,000 nationally. See what moves the price, how brands and store installs compare, and what to ask.
Water softener installation plumber in Santa Monica: Putting a water softener in a Santa Monica or Westside home: loop, drain, power and city rules, plus brand questions answered. Ask for a written quote.

Sewer lines

How to get rid of sewer smell in your house: Trace a sewer smell to a dry trap, a loose toilet seal or a cracked lateral, fix the easy causes yourself, and know what a plumber's camera can settle.
Plumber for sewer smell in Santa Monica: A sewer smell in a Santa Monica or Westside home usually has a simple cause. Learn the checks, the danger signs, and when a camera inspection is worth it.
What causes sewer gas smell in a house?: Sewer gas smell indoors usually comes from a dry trap, a failed seal or a blocked vent. Learn how to tell it from a natural gas leak and find the source room by room.

Commercial plumbing

Commercial backflow testing in Santa Monica: Annual backflow testing for Santa Monica and Westside businesses: what the test covers, per-device price ranges, failed-test repairs, and how to book.
Emergency commercial plumber in Santa Monica: Burst line in a shop, backed-up restaurant drain, no hot water at the office: how emergency commercial plumbing works in Santa Monica, with price ranges as a guide.
How much a commercial plumber costs per hour in Santa Monica: Commercial plumber hourly rates in the Los Angeles area run about $110 to $225, higher after hours. See what drives the rate, with a worked example and a quote checklist.

Plumber guides and answers