Water heater repair and replacement in Covina
No hot water, a leaking tank or a relief valve that keeps dripping? We repair what is worth repairing and replace the rest to the City of Covina's Handout #12, which took effect January 1, 2026, with the permit pulled at City Hall.
Call (626) 746-1970Request service
Written and fact-checked by John, editor, MBA in marketing
Updated against City, utility and state sources
Quick answer
Repair a tank water heater when a part fails and the tank is sound; replace it when the tank leaks or is near the end of its 10 to 15 year life. In Covina every replacement needs a City plumbing permit and must meet Handout #12: two seismic straps, a relief drain to the outside, a gas shutoff with sediment trap, a drain pan and an 18-inch stand in garages.
- City rules
- Handout #12, effective Jan 1, 2026
- Permit
- Required for every replacement
- City water hardness
- About 13.5 gpg (2025 CCR)
- Tank life
- 10 to 15 years (DOE)
If your water heater is leaking right now
Close the cold water valve on top of the heater, turn the gas control to off or switch off the breaker, and call (626) 746-1970.
Close the cold water valve
It is on the supply pipe at the top of the tank. Handout #12 requires an approved shutoff valve on the cold line, so a heater installed to current rules has one. On an older install, if it will not turn, close the main shutoff for the house.
Turn off the energy source
On a gas heater, turn the control knob to off or pilot. On an electric heater, switch off its breaker.
Find where the water comes from
A drip at a top fitting or from the relief valve pipe can often be repaired. Water from the base, or seeping through the outer jacket, usually means the tank has rusted through.
Protect the floor and anything nearby
Most Covina heaters sit in a garage or an outside closet. Move boxes and anything stored beside it, and sweep water toward the garage door or a drain.
What Covina's Handout #12 requires for a water heater
Handout #12 is the City of Covina's water heater rulebook, effective January 1, 2026 under the 2025 California Plumbing Code, and every replacement we install is built to each line of it.
Covina Building & Safety publishes a one-page handout for water heaters, with a diagram of a typical install on a 2 by 4 stud wall. It starts with a plain statement: a plumbing permit is required for all water heater replacements or new installations within the City of Covina. The rest of the handout lists what the inspector looks for. We have grouped it the way an inspection runs.
| Requirement | What it means at your house |
|---|---|
| Plumbing permit for every replacement or new install | A like-for-like swap in the same spot still needs a permit |
| Permit issued only to a California C-36 plumbing contractor or an approved homeowner-builder | A handyman without a C-36 license cannot pull it |
| HOA approval in writing for any exterior work, attached to the permit | Condos and planned developments need the letter before the counter visit |
| Plot or site plan on 8 1/2 by 11 paper (see Handout #15) | A simple sketch showing where the heater sits on the lot |
| Heater enclosed or in an approved cabinet, per the municipal code | An open heater on an outside wall may need a closet or cabinet |
| Unlisted heaters: 12 inches clearance on all sides | Listed heaters follow their listing and the manufacturer's instructions |
| Protected from physical damage | Garage heaters may need protection from a car bumper |
| Installation instructions on site and readily available | Leave the manual with the heater |
| Requirement | Detail |
|---|---|
| Two seismic straps | Minimum 1 1/4 inch wide, 16-gauge steel, bolted to the building at the upper and lower thirds of the tank |
| Bottom strap position | At least 4 inches above the gas control valve and at least 4 inches below a side relief valve outlet |
| Approved straps | The diagram calls for straps approved by the California State Architect, label facing out |
| Solid blocking | May be required behind the straps so the bolts hold |
| Garage installs | Heater on a stand or built-in platform raised at least 18 inches above the floor |
| Open-flame units | Pilot and controls at least 18 inches above the finished surface |
| Requirement | Detail |
|---|---|
| Gas shutoff and flex connector | An approved gas shutoff valve and approved flexible connector at the heater |
| Sediment trap | A tee at the control valve with a nipple at least 3 inches long and a cap |
| Cold water shutoff | An approved shutoff valve on the cold line |
| Pipe insulation | R-4 on the hot and cold lines, the first 5 feet where possible, kept 6 inches from the vent |
| Dielectric connection | Required where dissimilar metals meet at the heater |
| Pipe materials | Hard-drawn copper, CPVC or galvanized steel |
| Bonding | Continuous #8 copper bonding wire with clamps tying the cold, hot and gas lines together at the heater |
| Temperature and pressure relief valve | Installed per its listing |
| Relief drain end | Ends outside the building or at an approved location, unthreaded, pointing down, 6 to 24 inches above grade |
| Drain pan | Required where a leak could damage the floor, subfloor, drywall or platform, with at least a 3/4 inch drain to the outside or an approved location |
| Requirement | Detail |
|---|---|
| Roof termination | At least 12 inches above the roof, higher on roofs steeper than 6:12, and at least 8 feet from a second-story wall |
| Vertical rise | Type B or Type L vent at least 5 feet vertical above the draft hood or flue collar |
| Type B double-wall vent | For concealed spaces; 1 inch from combustibles; not fastened with screws or rivets |
| Single-wall metal vent | 6 inches from combustibles; fastened with sheet metal screws or rivets; only below the fire stop thimble; not in a confined space |
| Draft hood | Secured with 3 sheet metal screws at the connection |
| Roof parts | Listed vent cap, storm collar and roof flashing; thimble or collar sealed at the ceiling |
| Combustion air | Openings within 12 inches of the top and bottom of a small enclosure, sized by the total Btu input of the appliances in it, with screen mesh of at least 1/4 inch |
Four items are often missing on heaters installed under older rules: a missing bonding wire, a single strap or plumber's tape instead of two real straps, a relief drain that ends in the garage or the pan instead of outside, and a gas line with no sediment trap. None pass under the 2026 handout. Our Covina plumbing permits guide covers the other handouts and jobs the City permits.
How a water heater permit works in Covina
Covina water heater permits are issued in person at Building & Safety in City Hall, usually over the counter while you wait, and inspections are requested by email.
Covina does not have an online permit portal. Building & Safety is at City Hall, 125 E College St, phone 626-384-5460, open Monday to Thursday 7 a.m. to 6 p.m. and closed 1 to 2 p.m. Handout #14, the City's guide for mechanical, electrical and plumbing permits, says most of these permits are issued over the counter. It also says no work may be concealed before it is inspected.
Paperwork ready
The permit goes to the C-36 contractor doing the job, or to an approved homeowner-builder. Bring the plot plan from Handout #15 and, for an HOA property with exterior work, the written HOA approval.
Permit at the counter
The contractor pulls the permit at City Hall during counter hours. Handout #14 says most permits are issued over the counter while you wait.
Install to Handout #12
Old heater out, straps, stand, gas, water, bonding, relief drain and pan in to the handout. Installation instructions stay on site.
Inspection requested by email
Building & Safety takes inspection requests by email. The inspector checks the work against the handout before anything is covered.
Final and records
Keep the signed permit card. Buyers, insurers and future plumbers may ask whether the heater was permitted.
Covina's 13.5 grain water and your water heater
City of Covina water averaged 230 mg/L of hardness in 2025, about 13.5 grains per gallon, which the City's own report calls very hard, and that mineral load is what fills tanks with sediment.
The City's 2025 Consumer Confidence Report lists average hardness of 230 mg/L with a range of 190 to 280 mg/L, roughly 11 to 16 grains per gallon. Calcium averaged 56 mg/L and magnesium 22 mg/L, and total dissolved solids averaged 540 mg/L. The water met every state and federal standard. Hard is not unsafe. It is just heavy on minerals.
Most of the City's supply is filtered San Gabriel River water from Covina Valley Water Company, with water from the Metropolitan Water District's Weymouth plant used in some months. Other suppliers report their own numbers. Golden State Water's San Dimas system, which serves part of Covina, reports about 205 mg/L, about 12 grains, with a wide range. Check the report from the supplier named on your bill.
| Effect | Why it happens | What helps |
|---|---|---|
| Popping or rumbling while heating | Calcium carbonate drops out as water heats and settles on the tank floor | Yearly flush; replace if the drain valve clogs |
| Less hot water than before | Sediment takes up volume and insulates the bottom from the burner | Flush, then check the dip tube |
| Drain valve that will not drain | Scale chunks block the valve | Plumber flush with a full-port valve |
| Faster anode wear | Minerals and dissolved solids speed corrosion | Check the anode every few years |
| Scale on relief valve seat | Minerals deposit where hot water sits | Test the valve yearly; replace if it weeps |
A softener sized to your supplier's tested hardness reduces sediment and scale. Our water softeners and filtration page covers sizing, and the Covina water suppliers and hardness guide has every supplier's numbers.
Common water heater problems and what they usually mean
Most tank water heater calls come down to a few symptoms, and each points to a likely cause and a likely fix.
| Symptom | Likely cause | Usually |
|---|---|---|
| No hot water, gas | Pilot out, failed thermocouple or flame sensor, bad gas control | Repair |
| No hot water, electric | Tripped breaker, failed element or thermostat | Repair |
| Hot water runs out fast | Sediment, broken dip tube, undersized tank | Repair or replace |
| Popping or rumbling | Mineral sediment on the tank floor | Flush, or replace if severe |
| Water at the base | Tank corroded through | Replace |
| Drip at top fittings | Loose or corroded connection, missing dielectric fitting | Repair |
| Relief valve dripping | High pressure, thermal expansion, scaled or failed valve | Repair and check pressure |
| Rusty hot water, clear cold | Worn anode, corroding tank | Anode or replace |
| Pilot will not stay lit in a closet | Poor combustion air or a vent problem | Repair venting or air openings |
A gas heater that keeps going out in an enclosure deserves attention, because Handout #12 sets combustion air and vent rules for a reason. If you smell gas at the heater, leave the house and call SoCalGas at 1-800-427-2200 from outside, then see our gas line plumber page.
Water heaters in older Covina homes
About two-thirds of Covina homes were built before 1970, so many heaters sit in spots and on piping that predate today's handout, and a replacement often includes bringing the setup up to it.
Garage heaters
The City's Housing Element says about 58% of Covina homes are single-family detached houses. In most of them the heater is in the garage. A replacement there means the 18-inch stand, two straps with blocking, protection from a car, a sediment trap and a relief drain run through the wall to the outside, ending 6 to 24 inches above grade.
Outside closets and enclosures
Many older homes have the heater in a small closet on an exterior wall. Handout #12 requires an enclosure or approved cabinet, combustion air openings near the top and bottom of a small enclosure, and a vent that meets the roof rules. A rotted closet door or a blocked vent opening is a common fix.
Older piping matters too. Galvanized supply pipe meeting a new copper or CPVC connection needs the dielectric connection the handout calls for, or the joint corrodes. If the galvanized pipe itself is failing, our whole-house repiping page explains the options. The City's report notes there are no lead or galvanized service lines requiring replacement in its system, but pipes inside the house are the owner's.
Repair or replace your water heater?
Repair when the tank is sound and a part failed; replace when the tank leaks or is near the end of the Department of Energy's 10 to 15 year range.
| Situation | Under about 8 years | About 8 to 12 years | Over 12 years |
|---|---|---|---|
| Thermocouple, flame sensor or igniter failed | Repair | Repair | Repair, plan a replacement |
| Gas control valve failed | Repair | Compare both prices | Usually replace |
| Electric element or thermostat failed | Repair | Repair | Repair or replace |
| Relief valve dripping | Repair, check pressure | Repair, check pressure | Repair or replace |
| Heavy sediment, rumbling | Flush | Flush if the drain valve works | Usually replace |
| Leak from the tank body | Replace | Replace | Replace |
| Rusty hot water | Anode | Anode or replace | Usually replace |
The manufacture date is coded in the serial number on the label, and the plumber can read it for you. When both choices make sense, you get both prices in writing. On Covina's very hard water, a tank that has never been flushed tends to land on the replace side sooner. If you are replacing anyway, compare a new tank with a tankless water heater, which the DOE says lasts about 20 years.
Water heater repair and replacement costs
The published ranges below are national estimates, not quotes. Call (626) 746-1970 for an exact quote.
| Item | Published range |
|---|---|
| Tank water heater replacement | $600 to $2,500 |
| 40-gallon tank | $800 to $2,300 |
| 50-gallon tank | $800 to $2,500 |
| Tank-style repair | $100 to $500 |
| Gas valve replacement | $150 to $500 |
| Labor, tank replacement | $150 to $450 |
| Expansion tank | $90 to $350 |
| Permits | $25 to $300 |
| Removal and hauling | $100 to $500 |
What moves a Covina job: tank size and fuel, a new 18-inch stand, new straps and blocking, the bonding wire, a new gas shutoff and sediment trap, a relief drain rerouted outside, a pan and drain, vent repairs and haul-away. Handout #12 upgrades on an older install can push a job toward the top of a range. You get a written price before work starts. Call (626) 746-1970 for an exact quote, and see our plumbing costs in Covina guide for more published ranges.
Water heater maintenance that adds years on hard water
A yearly flush, a yearly relief valve test and an anode check every few years matter most on Covina's very hard water.
- Flush several gallons from the drain valve once a year; book a plumber the first time if the tank has never been flushed
- Lift the relief valve lever briefly once a year; it should discharge and stop. Steady dripping after means a bad valve or high pressure
- Check the anode rod every few years and replace it before it is gone
- Keep paint, gasoline and stored boxes away from a gas heater and its air openings
- Look at the relief drain end outside; water there means the valve is opening
- Keep both straps tight and the bonding wire clamped
- Keep the pan drain clear so a slow leak shows up outside, not on the floor
Water where it shouldn't be? Call now.
A real person answers 24 hours a day. You get an honest arrival window and a written price before any work starts.
Questions Covina homeowners ask
Do I need a permit to replace a water heater in Covina?
Yes. Covina's Handout #12 says a plumbing permit is required for all water heater replacements or new installations in the city. It is issued to a C-36 plumbing contractor or an approved homeowner-builder, in person at Building & Safety in City Hall. We pull the permit as part of the job.
What does Covina Handout #12 require?
Among other items: two seismic straps at the upper and lower thirds, a gas shutoff, flex connector and sediment trap, a cold water shutoff, #8 copper bonding, a relief drain ending outside 6 to 24 inches above grade, a pan where a leak could cause damage and an 18-inch stand in garages. It took effect January 1, 2026.
Does a water heater in a Covina garage need to be raised?
Yes. Handout #12 says a water heater in a garage must be on a stand or built-in platform raised at least 18 inches above grade. It also requires the heater to be protected from physical damage, which in a garage usually means protection from a car.
How hard is Covina water for a water heater?
Very hard. City of Covina water averaged 230 mg/L in 2025, about 13.5 grains per gallon, according to the City's water quality report. That leaves sediment in a tank over time, so a yearly flush helps. Customers of other suppliers should check their own supplier's report.
How long does a water heater last in Covina?
The U.S. Department of Energy says tank water heaters last 10 to 15 years. On Covina's hard water, a yearly flush and an anode replaced before it is gone help a tank reach the longer end. Tankless units last about 20 years, according to the DOE.
Why is my water heater relief valve dripping?
Usually high water pressure, thermal expansion in a closed system, mineral scale on the valve seat or a worn valve. Never cap the relief valve. A plumber tests the pressure, checks for an expansion tank and replaces the valve if needed.
Can I replace my own water heater in Covina?
Only as an approved homeowner-builder with a City permit. Handout #12 limits permits to C-36 plumbing contractors and approved homeowner-builders, and the work must pass inspection before anything is covered. Gas, venting and bonding are where most do-it-yourself installs fail.
How much does water heater replacement cost in Covina?
Angi publishes a national range of $600 to $2,500 for a tank water heater replacement, based on 2025 data. Permits and Handout #12 upgrades affect the final price. That is a published range, not a quote. Call (626) 746-1970 for an exact quote.
Sources
Facts on this page come from these public sources, checked November 1, 2026.
- City of Covina Handout #12, Water Heaters (effective January 1, 2026)
- City of Covina Handout #14, Mechanical, Electrical and Plumbing Permits
- City of Covina 2025 Consumer Confidence Report
- Golden State Water, San Dimas Consumer Confidence Report
- City of Covina, water purveyors servicing Covina
- City of Covina 6th Cycle Housing Element (certified March 2024)
- U.S. Department of Energy, Which Water Heater Is Right for You
- SoCalGas, Emergency Response
- Angi, water heater installation cost
- HomeAdvisor: main sewer line clearing cost (2025)
- Angi: hydro jetting cost (2026)
- HomeAdvisor via Angi: slab leak detection cost (2024)