The older SoCal housing stock we work every week comes with hard water, and hard water is the single biggest reason heaters in this area die before their time. Most of the region runs roughly 8 to 15 grains per gallon depending on township, so scale builds inside the tank, buries the lower element or burner in sediment, and shortens the life of every heater on the block. This page walks through repair, tank and tankless replacement, and softener installation, plus how we decide between fixing your heater and replacing it, so you know what you're dealing with before we arrive.
Water heater repair: what we check before we quote
A repair call starts with a diagnosis, not a sales pitch. When you have no hot water, we check the obvious first: on a gas unit, is the pilot lit and is the thermocouple holding it; on an electric unit, is the breaker tripped and are the upper and lower elements testing good with a meter. From there we look at the parts that actually fail. A gas control valve or thermocouple that won't keep the pilot, a burned-out heating element or tripped high-limit on an electric tank, a failed thermostat reading the wrong temperature, or a stuck T&P relief valve dripping down the discharge line. Sediment is the quiet killer on the hard water here; a lower element buried in scale will burn out early and a gas burner firing under a scaled-up tank makes that rumbling and popping sound people call a kettle. Where the tank itself is sound and the fault is a wearable part, that is a repair and we tell you to keep the heater. Not sure whether yours is worth fixing? Call 213-254-8695 and we will tell you what you are actually dealing with before we come out.
Repair a gas water heater vs. an electric one
Gas and electric heaters fail in different ways and get diagnosed differently. On a gas water heater the usual suspects are the thermocouple or flame sensor, the gas control valve, a dirty or misaligned burner, or a blocked flue that trips the safety on a power-vent model. A pilot that lights and then dies within a minute is almost always the thermocouple, which is a common and quick repair. On an electric heater the failures are the two heating elements, the two thermostats, and the reset button on the high-limit; an element shorted or coated in scale is the classic no-hot-water or runs-out-fast complaint. We carry the common thermocouples, elements, thermostats, and T&P valves so most single-heater repairs are a one-visit fix. What we will not do is throw a new part at a tank that is already rusting through, because a repair on a failed tank is money you will spend twice.
Water heater replacement: tank and tankless
When the tank itself has failed there is no repair, and pushing one is dishonest. A rusty puddle under the heater, rusty hot water, or a tank weeping at a seam means the glass lining is gone and the steel is corroding through, and no part fixes that. Most standard tank heaters last roughly 8 to 12 years, and the hard water across our service area pushes many of them to the short end of that range, so age plus a leak is usually the whole story. On a replacement we size the new unit to your real peak fixture load, not just family size, haul the old heater away, and bring the whole install up to current California code: a new T&P discharge routed correctly, an expansion tank where there's a check valve or PRV on the main, seismic strapping (required in CA), dielectric unions on copper-to-galvanized transitions, and a leak pan with a drain on garage, closet, or upper-floor installs. If you want to move from a tank to a tankless unit at the same time, this is the moment to do it, and we cover the venting and gas-supply details in the tankless section below. Ready to talk it through? Reach us at 213-254-8695.
Water heater repair vs. replacement: how to decide
Here is the version most companies will not put in writing. If the tank is sound and the fault is a thermocouple, an element, a thermostat, or a T&P valve, that is a repair, and on a heater under about eight years old a repair is almost always the right spend. Replacement genuinely wins in a few clear cases: the tank is leaking from the body or a seam, because a corroded tank cannot be sealed and will fail again; the heater is past 10 to 12 years and needing its second or third repair, where you are pouring money into borrowed time; or the unit is badly undersized for how you actually live and you are running out of hot water no matter what. Age alone is not a reason to replace a heater that is running fine, and we will say so. Where a repair keeps you in hot water for a few more years, we will tell you to keep it. Where the tank is done, we will tell you that too, and quote the replacement straight.
When a new water heater is not the right call yet
Not every cold shower means you need a new heater, and we would rather tell you that than sell you one. If your heater is under warranty, call the manufacturer or the company that installed it before you pay for a full replacement, because the tank may be covered. If the only symptom is water that is not hot enough, the fix might be as simple as turning up a thermostat that got bumped down or resetting a tripped high-limit, and that is not worth a service call if you are comfortable checking it. And if a fairly new heater is short on hot water, the real problem may be a failing mixing valve or a crossed hot-and-cold connection somewhere else in the house rather than the heater itself. We will chase the actual cause instead of defaulting to the biggest ticket.
Tank water heaters sized to your house
We size by first-hour-rating against your peak fixture load, not just by family size. Standard installs include a new T&P relief discharge to code, an expansion tank (required when there's a check valve or PRV on the main), dielectric unions on copper-to-galvanized transitions, and a leak pan with proper drain routing on garage, interior-closet, or second-floor installs.
Tankless water heaters, properly vented
Tankless units need correctly sized gas piping (usually 3/4" minimum, often 1" depending on BTU rating and run length), Category III stainless venting or PVC per the manufacturer's spec, and a condensate neutralizer if condensing. We verify gas pressure under load before sign-off. Most tankless failures we see on other people's installs are starved gas supplies, not bad units. If the existing line to the meter is too small for the unit's BTU draw, we quote the gas line work up front instead of letting a good heater run lean.
Water softener installation for hard CA water
Water softener installation is the single best thing you can do for a water heater in this area, because it stops the scale that kills tanks early. We test your incoming hardness, size the resin capacity to your daily usage, install a bypass loop so the softener can be serviced without shutting down the house, plumb the brine drain to code with an air gap, and program the regeneration cycle for your usage pattern. Cold-water-only loops for the kitchen and outside spigots are standard if you ask. When we install a softener alongside a new heater, both units last longer, your fixtures stop scaling up, and the soap scum on tile and glass goes away.
Extended warranties on installed units
Ask about our extended warranty on installed water heaters and softeners. It's peace of mind well past the manufacturer's coverage, and a single number to call when anything goes wrong.
Got questions?
Frequently asked questions
My water heater stopped working. Can it be repaired or does it need replacing?
It depends on what failed. If the tank is sound and the problem is a wearable part like a thermocouple, a heating element, a thermostat, or a T&P valve, that is a repair, and on a heater under about eight years old a repair is usually the right spend. If the tank is leaking from the body or a seam, it cannot be repaired and needs replacing. We diagnose the actual fault and tell you honestly which situation you are in before you spend a dollar.
How do I repair a gas water heater that keeps losing its pilot?
A pilot that lights and then dies within a minute is almost always a failing thermocouple or flame sensor, which is a common and quick repair. If the pilot won't light at all, the cause is more often the gas control valve, a dirty burner, or a blocked flue on a power-vent model. We carry the common thermocouples, control valves, and T&P valves, so most gas water heater repairs are a single visit. Gas work is a life-safety job, so this is not a repair to leave to guesswork.
How long does a water heater last before it needs replacement?
A standard tank heater lasts roughly 8 to 12 years, and the hard water across our service area pushes a lot of them to the short end of that range because scale builds inside the tank. A rusty puddle underneath, rusty hot water, or a tank weeping at a seam means the tank is corroding through and it's time to replace. A heater that's simply short on hot water is often a repair, not a replacement, so we check before recommending a new unit.
Tank or tankless: which is right for my house?
Tankless is the right call for most 3-bath-and-up homes that already have natural gas and a reasonable run from the meter. For 2-bath homes with low simultaneous-use needs, a 50-gallon tank is usually the better value. We'll size both and let you compare.
Do I really need an expansion tank?
If your water service has a check valve, dual-check backflow, or PRV (which is most of CA), then yes, it's code, and without one the T&P valve on your heater will start dripping within a year.
Will a softener strip minerals my body needs?
Softeners exchange calcium and magnesium for a small amount of sodium. If that's a dietary concern we install a separate cold-water hard line to the kitchen sink so your drinking water bypasses the softener.
Are you licensed, bonded and insured?
Yes. Nava's Elite Plumbing carries a current California master plumber registration, $1M general liability coverage, and workers' comp on every technician. A certificate of insurance naming you or your property manager is available on request before we start.
Do you give upfront pricing?
Every job is quoted in writing before any work begins. We price by scope, not by the hour, so the number you approve is the number you pay — barring scope changes you approve in writing.
Do you require money down?
No deposit on standard service calls. On larger projects (repipes, sewer replacements, gas line installs) we phase work into progress payments tied to city inspection milestones — you never pay ahead of completed work.