Plumber guides and answers

Del Amo Plumbing arranges a local plumber for homes in Torrance and the South Bay, 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.

Water heaters (repair, replacement, tankless)

• A. O. Smith water heater repair: A. O. Smith water heater repair in Torrance: common faults on gas and electric models, what to read on the label, repair or replace, and how we arrange a visit.
• Anode rod water heater replacement in Torrance: Anode rod replacement for a Torrance water heater: how often, signs it is spent, magnesium or aluminum, what a plumber charges and the smell that is not gas.
• Electric hot water heater replacement cost: Electric water heater replacement cost in Torrance: guide ranges of about $800 to $2,500, what changes the price, heat pump models, permits and what to ask.
• Electric water heater thermostat replacement: Electric water heater too hot, lukewarm or tripping? How the two thermostats work, how to test them safely, what a replacement costs and when to call a plumber.
• Emergency water heater repair in Torrance: Tank leaking, relief valve spitting or a gas odor by the heater? Torrance guide to what is truly urgent, what to close first, and typical repair prices.
• Gas water heater replacement cost in Torrance: Gas water heater replacement cost in Torrance: 2026 guide ranges for 40 and 50 gallon tanks, labor, permit, strapping and venting, and what is worth asking.
• How often should a water heater be replaced?: A tank water heater typically lasts about 10 to 15 years, a tankless about 20. How to read your heater's age, spot the warning signs and plan the swap.
• How to repair water heater leakage: Puddle under your water heater in Torrance? Find where it leaks, what a handy homeowner can tighten, and when the tank is finished and a plumber must step in.
• Low pressure from the hot water only: Weak hot water but strong cold in your Torrance home? The usual causes, from the heater's own valves to scale and old galvanized pipe, and which fixes you can try.
• Navien tankless water heater repair: Navien tankless water heater with an error code, no hot water or lukewarm water? What to check safely, what needs a plumber, and how hard water plays in Torrance.
• Plumber for a water heater leak in Torrance: Water heater leaking in Torrance? Stop the flow, read where the water starts, learn which leaks are repairs and which end the tank, plus replacement costs.
• Plumber for water heater replacement in Torrance: Water heater replacement in Torrance: how a swap goes, the permit and strapping rules, tank or tankless, and what to settle before the old tank comes out.
• Plumbing permit for water heater: Do you need a permit to replace a water heater in Torrance or the South Bay? Who files it, what the inspector checks, strapping rules and what it costs.
• Pressure relief valve replacement on a water heater: When a water heater's pressure relief valve drips, sticks or corrodes, how replacement works, what ratings must match and why a new valve can drip again.
• Replacement water heater element: signs, cost and safe steps: Electric water heater lukewarm or dead cold? How to tell a failed heating element from a bad thermostat, what a swap costs, and what is safe to try yourself.
• Shower with no hot water: No hot water in the shower in Torrance? Work out whether it is the shower valve or the water heater, what you can check safely, and when to call a plumber.
• Tank vs tankless water heater in Torrance: Tank or tankless in Torrance: efficiency, gas line and venting changes, installed cost ranges and which suits your household. Written quote after a visit.
• Tankless hot water heater installation in Torrance: Tankless hot water heater installation in Torrance: gas line, venting and permit needs, what changes from a tank, and cost guides.
• Tankless water heater installation cost in Torrance: National guides put tankless installation near $747 to $2,312 before the unit. See what drives the bill in Torrance: gas line, venting, permit and hard water.
• Thermocouple water heater replacement: Gas water heater pilot won't stay lit? Learn how a failing thermocouple behaves, what a replacement costs as a guide, and where the do-it-yourself line sits.
• Washing machine with no hot water: Washer won't fill with hot water? Test a sink tap first, then check hoses, inlet screens, the cycle setting and the water heater. A Torrance guide to the fixes.
• Water heater pilot light repair in Torrance: Pilot light out or won't stay lit on a gas water heater? Safe relight steps, why a thermocouple fails, what a plumber charges and when to stop and call.
• Water heater repair plumber in Torrance: Water heater repair in Torrance: common faults, repair or replace, rough prices, and how we arrange a local plumber to come out and quote in writing.
• Water heater replacement cost in Torrance: What a new water heater costs in Torrance in 2026: tank and tankless ranges, labor, permit, strapping, repair-or-replace math and emergency installs.
• Why have I got no hot water?: No hot water at home? Check the breaker, pilot, thermostat and shutoff first. Torrance causes for gas and electric tanks, apartments, and when to book a plumber.

Leaks and burst pipes

• Burst water pipe: what to do, in order: A burst water pipe in your Torrance home: the first five minutes, the first hour and the first day, plus what causes bursts and how repair and drying work.
• Ceiling damage from a water leak: read it, make it safe, fix the source: Stain, bulge or sag in a Torrance ceiling after a leak? How to read the damage, make it safe, find the source above and decide what to cut out and repair.
• Ceiling water leak: what to do and who fixes it: Water coming through your ceiling in Torrance: the first steps, how to tell what is leaking above, repair costs, mold risk, and what to do in an apartment.
• Does insurance cover a burst pipe?: Is a burst pipe covered by insurance in California? Where sudden and accidental ends and wear and tear begins, plus what to do in the first hours.
• Emergency plumber for burst pipe in Torrance: A pipe has burst in your Torrance home: what to shut off first, what a plumber does on arrival, who pays, and what a rush job tends to cost.
• How to fix a leaking PVC joint without cutting: Fix a leaking PVC joint without cutting the pipe? What works for threaded and glued joints, what only buys time, and when a plumber should cut it out.
• How to know if a pipe burst: Signs of a burst pipe in a Torrance house or slab, a quick meter check you can do in minutes, and the first moves while you wait for a plumber.
• How to repair a pinhole leak in copper pipe: Fine spray or a damp spot on a copper pipe? How to stop a pinhole leak for now, fix it for good, dry a wet ceiling, and know when repeat pinholes mean a repipe.
• Leaking water pipe repair: Leaking water pipe repair: stop the water, find the leak, compare clamps, couplings and replacement, plus what drives cost in Torrance houses with older pipe.
• Plumber for leaks in Torrance: Plumber for leaks in Torrance: the first five minutes, how to track down a hidden leak, what repairs run, and who pays when a pipe bursts.
• Slab leak repair companies in Torrance: how to choose one: Choosing a slab leak repair company in Torrance: signs of a leak under the floor, what the repair options are, license checks, and what to get in writing.
• Slab leak repair or repipe in Torrance: Slab leak repair or a repipe in Torrance: how leaks under concrete are found, the repair options, rough prices, and how a plumber is arranged to quote.
• Water spots on the ceiling but no leak: A brown ceiling stain with no drip? Likely causes from old leaks to sweating ducts, how to tell if it is active, and when a Torrance plumber should look.
• What a plumber charges to find and fix a leak: National guides put a leaking pipe repair at $228 to $752. What leak detection, slab and outdoor leaks add in Torrance, and how to compare written quotes.
• What causes a pipe to burst?: Why pipes burst in Torrance homes: high pressure, aging pipe, thermal expansion, roots, shifting ground and rare freezes, plus the warning signs to watch.
• What slab leak repair costs in Torrance: Slab leak repair cost in Torrance, 2026: price guides for spot repair, reroute and repipe, what a burst pipe or wall leak costs, and what changes the total.

Plumber

• Cost of replacing plumbing in an old house: What replacing the plumbing in an older Torrance house costs: supply lines, drains, gas piping and wall repair, with 2026 price ranges and what moves them.
• Does homeowners insurance cover broken pipes under the foundation?: Does homeowners insurance cover broken pipes under a foundation or slab? What California policies usually pay, what they exclude, and how to document a leak.
• Emergency plumber in Torrance: Burst pipe, gas smell or no water in Torrance? What counts as a plumbing emergency, what to do first, and what an urgent call costs.
• Finding a well-rated plumber in Torrance: what to check: Searching for a best rated plumber near you in Torrance? How to read ratings, check a license, handle Sunday calls and spot warning signs before you hire.
• How to stop water leaking from a plastic pipe: Stop a leaking plastic pipe in Torrance: shut the water off, make a safe temporary fix, then see which repairs are lasting and when to call a plumber.
• Plumber cost for a new house in Torrance: Plumber cost for a new house in Torrance: how new construction plumbing is priced in phases, which parts cost what, and what to check on a house you just bought.
• Plumber service call cost in Torrance: What a plumber's service call fee covers, typical 2026 trip charges and hourly rates, emergency surcharges, and how to avoid paying twice. Written quote first.
• Plumber service in Torrance: Plumber service in Torrance: what a visit covers, what drives the price, how to check a contractor, and how we arrange a written quote.
• Plumber smoke test cost in Torrance: What a plumbing smoke test costs in Torrance: typical price range, how long it takes, what it finds in drains and vents, and when another test fits better.
• Plumbing for a bathroom remodel: Planning a bathroom remodel in Torrance? How plumbing rough-in works, what moving fixtures costs you, which permits apply, and when to bring the plumber in.
• Water hammer sound in your pipes: Water hammer sound in your pipes: what causes the bang or knock, quick checks you can do, fixes like arrestors and regulators, and when a Torrance plumber helps.
• What plumber costs in Torrance: What plumbers charge in Torrance in 2026: hourly rates, call-out and minimum fees, emergency premiums, repipe and burst-pipe ranges, and how to compare quotes.
• Why is my water bill so high?: A sudden jump on a Torrance water bill usually means a leak, a tier change or sprinklers. How the city's 2026 tiers work and how to find the cause.
• Winterize mobile home plumbing: How to protect mobile home plumbing in Torrance and the South Bay: cold-snap prep, draining an empty unit, vents and belly pipes, and when to call a plumber.

Toilets

• How to repair a running toilet: How to repair a running toilet: a five-minute tank check, the flapper, fill valve and float fixes, and the point where a plumber is the better call.
• How to repair or replace a toilet fill valve: A hissing, running or slow-filling toilet often needs a new fill valve. How to confirm it, replace it in about half an hour, and what a plumber charges.
• Labor cost to replace a toilet fill valve: What a plumber charges to replace a toilet fill valve: a guide to labor and parts, what pushes the price up, how long it takes and whether to DIY.
• Plumber for toilet leak: Water around the toilet base, under the tank or on the floor? Find the leak source, a simple dye test, what is safe to fix yourself and when to call a plumber.
• Plumber toilet repair in Torrance: Toilet repair in Torrance: what fails, what a plumber charges, when a new toilet is smarter, and how to get a written quote before work starts.
• Replacing a toilet flush valve without removing the tank: A flush valve seat repair kit can stop a leak without lifting the tank. What it fixes, what it cannot, how to fit it and when a full flush valve swap is needed.
• Toilet flapper repair: How to repair or replace a toilet flapper: pick the right size, fit it in minutes, set the chain, and tell a bad flapper from a damaged seat. Torrance hard water tips.
• Toilet flapper valve types: Two-inch or three-inch, adjustable or fixed, flapper or canister? How to identify your toilet's flush valve and buy a replacement that seals the first time.
• Toilet flush repair: Toilet flush repair in Torrance: fix a weak flush, a loose handle, a sticking float or a bowl that keeps refilling, and learn when to book a plumber.
• Toilet handle loose and won't flush: A loose toilet handle that will not flush is usually a nut, an arm or a chain, not a new toilet. Check the tank in minutes and see when a plumber is worth calling.
• Toilet shut off valve repair: A toilet shut off valve that leaks, sticks or will not close: what is safe to try, when to replace the stop valve, 2026 price guides and Torrance pipe issues.
• What a plumber charges to replace a toilet in Torrance: Toilet replacement prices in Torrance for 2026: labor, the toilet itself, extras like a new shutoff valve or flange, and when repair beats replacing.

Faucets, sinks, showers and disposals

• Can a leaky faucet cause a high water bill?: A dripping faucet adds gallons but rarely explains a big jump. Here is the math, how to read your meter, and the leaks that really spike a Torrance bill.
• Cost of a plumber to install a faucet or disposal in Torrance: What a plumber charges to install a faucet or garbage disposal in Torrance: national price ranges, what moves the bill, and how to compare written quotes.
• Garbage disposal installation with a dishwasher: Installing a garbage disposal with a dishwasher: the knockout plug, drain hose, air gap or high loop, wiring, and 2026 guide costs for a Torrance plumber visit.
• How to fix a leaky faucet: How to fix a leaky faucet: find the type, replace the right part, handle outdoor spigots and Delta handles, and know when a Torrance plumber is cheaper.
• How to fix a leaky shower faucet: A shower that drips after shutoff usually needs a new cartridge or washer. Which part to buy, how to swap it, what a drip costs, and when to open the wall.
• How to fix a leaky sink faucet: Dripping spout, wet base or leaking handle? Identify your faucet type, replace the worn part in about an hour, and know when a Torrance plumber should step in.
• How to fix a leaky tub faucet: Dripping tub spout or leaking handle? Find which part is failing, replace the stem washer or cartridge, handle a Moen, and fix a drip under the sink. Torrance.
• How to repair a leaking pipe under the sink: Leaking pipe under the sink? Pin down the drip, tighten or replace the right part, and learn where DIY ends and a Torrance plumber begins.
• Low water pressure at the kitchen sink: Low water pressure at the kitchen sink only? Check the aerator, shutoff valves, supply lines and cartridge first, and learn when it points to a bigger problem.
• Plumber for a shower leak in Torrance: Shower dripping, leaking through the wall, or a burst pipe behind it? Find where it leaks, what repair costs nationally, and when a Torrance plumber is needed.
• Plumber for garbage disposal repair in Torrance: Jammed, humming, leaking or dead disposal in Torrance? What you can try safely, what repair and replacement cost, and how a local plumber visit works.
• Shower water pressure is low: Low shower pressure in Torrance? Learn if it is the showerhead, valve, water heater or whole house, and what to test before calling a plumber.

Drain cleaning and clogs

• Clogged drain from a washing machine: Washing machine drain clogged? Spot the signs, clear the filter, hose and standpipe, know when it is a main line problem, and when a Torrance plumber should step in.
• Dishwasher drain clogged: Dishwasher won't drain or backs up into the sink? Check the filter, disposal plug, air gap and hose, then learn when a Torrance plumber is the right call.
• How to drain a clogged bathtub: Standing water in the tub? Pull the stopper and the hair, snake the drain, and skip harsh chemicals. Plus slow kitchen sinks and bathroom P-trap cleaning.
• How to repair a blocked toilet: Clear a blocked toilet in steps: stop the overflow, plunge properly, try a closet auger, and know the signs that the problem is the drain line and needs a plumber.
• How to unclog a bathroom sink: Unclog a bathroom sink in five escalating steps: stopper, plunger, P-trap and snake. Plus what to skip, and the signs that mean the problem is deeper.
• How to unclog a kitchen sink: Standing water in the kitchen sink? Six steps to clear a clog yourself, what to avoid, and signs the blockage is in the main drain and needs a plumber.
• Plumber for clogged toilet in Torrance: Toilet won't flush or keeps rising? When a Torrance plumber is worth calling, what a clog costs to clear, and what to try first. Written quote before work.
• Shower clogged drain: Standing water in the shower? What to pour or not pour, the hair tool that works best, when hydro jetting is worth it, and when a Torrance plumber should step in.
• What a plumber charges to unclog a toilet in Torrance: A plumber to unclog a toilet usually runs about $100 to $350, more for a main line. Price bands by method, what raises the bill, and when to stop plunging.
• Why is my sink draining slow?: Why a sink drains slowly, kitchen or bathroom: what is usually in the trap, how to clear it safely, and the signs that point to a deeper drain problem.

Repiping and pipe replacement

• Galvanized pipe replacement cost: What replacing galvanized water pipes costs in 2026: totals by house size, PEX against copper, partial fixes, wall repair and how to read a quote in Torrance.
• Galvanized pipe replacement in Torrance: Galvanized pipe replacement in Torrance: why old steel lines corrode, signs it is time, PEX or copper, rough cost, permits and how long a repipe takes.
• Is PEX-A or PEX-B better?: PEX-A or PEX-B for a Torrance repipe: flexibility, fittings, flow, cost and what actually matters. A plain comparison for homeowners getting repipe quotes.
• PEX repipe cost in Torrance: what the numbers look like: What a PEX repipe costs for a Torrance house in 2026: ranges by home size, what adds to the bill, copper and polybutylene comparisons and how to read a quote.
• PEX vs copper for a Torrance repipe: PEX or copper for a Torrance repipe? Compare cost, flow, lifespan and where each pipe struggles, with price bands from published guides.
• Polybutylene pipe replacement: Polybutylene pipe replacement in Torrance and the South Bay: how to identify gray PB pipe, why it fails, 2026 repipe cost ranges, insurance and what to expect.
• Repipe a house in Torrance: Repiping a Torrance house: when it is worth it, how the days run, PEX or copper, permits and a cost guide for a 3-bedroom home. Written quote first.
• What repiping a house costs in Torrance: What a whole-house repipe costs in the South Bay: PEX versus copper ranges, price per square foot, partial repipes and what changes the quote.
• Why repipe a house?: Why homes get repiped: galvanized steel, polybutylene, pinhole copper and low pressure. How to tell patching from replacing for a Torrance or South Bay house.

Water pressure and valves

• How to adjust a water pressure regulator valve: How to adjust a water pressure regulator valve: find it, read the gauge, turn the screw, spot a failing valve, and know when a plumber should swap it.
• How to fix low water pressure in a house: Fix low water pressure in the house: test it, check valves, aerators and the regulator, rule out leaks and scale, and decide when a booster pump or plumber helps.
• Plumber for low water pressure in Torrance: Weak showers or a trickle at every tap in Torrance? What causes low water pressure, what a fix costs as a guide, and how we arrange a plumber visit.
• Sudden low water pressure in house: Water pressure fell overnight? Work through a short triage: street supply, your valves, a regulator, a leak or a filter, and see when to call a Torrance plumber.
• The best showerhead for low water pressure in a California home: Picking a showerhead for weak pressure in California: what the 1.8 gpm cap means, which designs help, what to test first and when the fix is a plumber.
• Water pressure regulator installation cost: Water pressure regulator installation cost in Torrance: guide ranges of about $200 to $700, what drives the bill, the 80 psi code limit and when to replace.
• Water pressure regulator replacement: Water pressure regulator replacement: signs of failure, where the valve sits, what a visit involves, expansion tank and permit questions for Torrance homes.
• Where is a water pressure regulator located?: Where to find the water pressure regulator in a Torrance home: usual spots, what it looks like, how to read pressure, and when a plumber should adjust or replace it.
• Why is my water pressure low?: Low water pressure in a Torrance house: the six usual causes, a ten-minute gauge test, what a failing regulator does, and when to call a plumber.

Water softeners and treatment

• Can a water softener cause a high water bill?: A softener adds only a little water per cycle, so a big jump on the bill points to a fault. How to read the meter, test the softener and find the real cause.
• Hard water scale prevention: Prevent hard water scale in Torrance: read the hardness scale in ppm and gpg, protect heaters and fixtures, and compare softeners, conditioners and simple habits.
• How to install a water softener: DIY water softener installation in Torrance: tools, plumbing layout, drain rules and local limits, plus how to clear old scale and when to call a plumber.
• Removing hard water scale: White crust on faucets, showerheads and the water heater? What dissolves hard water scale safely, what to avoid, and how to keep it from returning in Torrance.
• Salt-based water softener installation in Torrance: Salt-based water softener installation in Torrance: how the system works, the California rules, where it goes, what the install costs, and what upkeep to expect.
• Water softener installation cost in Torrance: Water softener installation cost in Torrance: price ranges by system type, labor, brands, what a loop adds, and the local rules on salt units.
• Water softener installation plumber in Torrance: Water softener installation in Torrance: what a plumber connects, a guide to prices, drain and permit questions, and brand-specific setup. Written quote first.
• Whole-house water softener installation cost in Torrance: Whole-house water softener installation cost in Torrance for 2026: unit, labor, drain and permit ranges, a way to build your own estimate, and hard water facts.

Permits, codes and inspections

• Backflow device testing cost in Torrance: What backflow device testing costs in Torrance: typical test fees, annual testing rules, repair and replacement ranges, permits and how to book a local tester.
• Backflow prevention testing in Torrance: Got a backflow test notice in Torrance? What the yearly test checks, who may do it, what it costs per device, and what happens if the device fails.
• Backflow testing in Torrance and the South Bay: Backflow device test or annual inspection in Torrance and the South Bay? Why testing is required, who asks for it, what the permit covers and what to have ready.
• Gas plumber in Torrance for gas lines, appliances and backflow tests: Gas line work in Torrance belongs to a contractor with the right California classification. What a gas plumber handles, how permits work, and backflow tests.
• Plumber inspection cost in Torrance: Plumbing inspection prices for Torrance: visual, camera and sewer scope fees, city permit inspections, backflow tests and when each one is worth paying for.
• Residential gas piping codes in Torrance: How gas piping rules work for a Torrance home: which code applies, what the permit and inspection cover, who may do the work, and what to ask the city.

Gas lines

• Emergency gas shut-off valve for earthquakes: Earthquake gas shut-off valves in Torrance: what a seismic valve does, what installing one involves, rough cost, reset rules and when to call SoCalGas.
• How to reset an earthquake gas shut off valve: Reset an earthquake gas shut off valve safely: what tripped it, when to wait for SoCalGas or a plumber, valve types, install cost and what California certifies.
• Plumber for gas line work in Torrance: Need a gas line run, moved, capped or repaired in Torrance? Who is allowed to do it, what the permit covers, and what national price guides say it costs.
• What a plumber gas line costs in Torrance: Gas line costs in Torrance for 2026: per-foot prices, appliance hookups, permits, earthquake valves and what a plumber needs to quote the job properly.

Commercial plumbing

• Commercial backflow testing in Torrance: Commercial backflow testing in Torrance: why the yearly test notice arrives, which devices it covers, what the visit involves and how to avoid a shutoff.
• Emergency commercial plumber in Torrance: Burst main, sewer backup or no water at your shop, office or restaurant? What counts as a commercial plumbing emergency in Torrance, and what it costs.
• What a commercial plumber charges per hour in Torrance: What commercial plumbers charge per hour in 2026, how master and journeyman rates differ, why after-hours costs more, and how to compare Torrance bids.

Sewer lines

• How to get rid of sewer smell in a house: A sewer smell in your Torrance house usually has a cheap cause: a dry trap, a bad wax ring or a clogged vent. How to find it and when the line itself is at fault.