Water heater repair & replacement
No hot water, or water under the tank? Send a photo and we can usually tell you repair or replace before we come out.
Why water heaters die early in Arvada
A water heater in a soft-water part of the country will often reach the twelve years on the label. Here, eight to ten is more typical, and the reason is sitting in the bottom of your tank right now.
Front Range water carries a heavy mineral load. Every time the heater cycles, some of that precipitates out and settles on the tank floor — directly between the gas burner underneath and the water it is trying to heat. Scale is an excellent insulator, which is exactly the wrong property here. The burner has to run longer and hotter to deliver the same hot shower, the steel above the flame is cooked harder than it was designed for, and the glass lining protecting that steel starts to fail. When it does, the tank weeps, and no repair fixes a weeping tank.
The maintenance that prevents this is unglamorous and cheap: drain a few gallons off the tank once a year through the valve at the bottom to flush the sediment out before it packs down. It takes twenty minutes. We will do it on a service call, and we will just as happily show you how to do it yourself, because a customer who flushes their own heater calls us for a replacement four years later than one who does not.
Check your anode rod at year five
Inside the tank is a sacrificial magnesium or aluminium rod that corrodes so the steel does not. In hard water it is consumed faster. Replacing a spent rod costs a fraction of a new heater and can add years to the tank — and almost nobody does it, because almost nobody knows it is there.
The altitude problem nobody mentions
Arvada sits above five thousand feet. There is less oxygen in the air, and gas appliances have to be set up accordingly — manufacturers publish high-altitude ratings and derate specs precisely because a unit configured for sea level will not burn correctly up here. We find incorrectly configured heaters regularly, usually installed by whoever was cheapest that week. It runs inefficiently, it can burn dirty, and it will be flagged the moment a competent inspector looks at it during a sale.
Repair or replace
Plenty of water heater problems are genuinely repairable, and a plumber who reaches for replacement every time is selling, not diagnosing. A pilot that will not stay lit is usually a thermocouple — a cheap part and under an hour. No hot water on an electric unit is very often a failed heating element or a tripped high-limit. A leak at the T&P valve, the drain valve or a supply fitting is a repair, not a replacement.
What genuinely cannot be repaired is a tank leaking from its body. Once the lining has failed and the steel is weeping, the tank is finished, and anybody promising to fix it is wasting your money. Beyond that it becomes arithmetic: at nine or ten years old, with a significant repair in front of it and a warranty long expired, replacement is usually the better spend. At four years old, repair it.
Sizing, and the mistake people make
Bigger is not automatically better. An oversized tank keeps a larger volume of water hot around the clock for showers you are not taking, and in a hard water area it also gives sediment more floor area to accumulate on. For most Arvada households a correctly sized forty or fifty gallon unit, recovering properly, beats an oversized one. Where sizing genuinely needs attention is high simultaneous demand — a big family all showering in the same hour, or a soaking tub that empties a tank on its own. That is a real conversation, and it is worth having before you buy rather than after.
What “upfront pricing” should actually mean
Every plumber in the Denver metro says “upfront pricing.” Here is the version we will put in writing.
| Arvada Plumbing Co. | Typical big-name outfit | |
|---|---|---|
| Price quoted before work starts | Flat price, in writing, on site | Hourly “plus parts” |
| Who answers at 11pm | A plumber in Arvada | A national call center |
| Trip / diagnostic fee | Waived when you book the repair | Charged either way |
| Time to arrive in Arvada | Usually within the hour | “Sometime in a 4-hour window” |
| Parts markup disclosed | Yes, itemized | Buried in the total |
| Warranty on labor | In writing with the invoice | Verbal, if you ask |
Common questions
How long should a water heater last in Arvada?
Manufacturers say ten to twelve years for a tank unit. Around here, plan on eight to ten unless it has been flushed regularly, because our mineral load builds scale on the tank bottom faster than the average the rating assumes.
Scale insulates the burner from the water, so the unit fires longer and hotter to hit the same temperature, which stresses the tank and burns more gas. Flushing the tank annually is the difference between the two numbers.
Why does altitude matter for a water heater?
Arvada sits above five thousand feet and there is measurably less oxygen up here. Gas appliances need to be rated or configured for high altitude or they will not burn cleanly — manufacturers publish derate specifications for exactly this reason.
It is one of the most common faults we find on units installed by someone who does not work at this elevation routinely. It also becomes a real problem at resale, when an inspector flags it.
Is tankless worth it here?
Sometimes. Tankless earns its cost when you actually run out of hot water regularly, when you want the floor space back, or when you are staying in the house long enough for the efficiency to pay back the higher install cost — and the install cost here is genuinely higher, because you often need gas line upsizing and new venting.
The thing nobody mentions: our hard water is harder on tankless than on tank units. A tankless heat exchanger needs descaling on a schedule or it will scale up and lose output. If you will not keep up with that, a good tank unit is the better buy.
There is water under my heater. Repair or replace?
Depends where it is coming from. Leaking from a fitting, the T&P valve or the drain valve is usually repairable and not expensive. Leaking from the tank body itself is not — once the glass lining fails and the steel is weeping, no repair holds and the unit needs replacing.
Send us a photo before we come out and we can usually tell you which one you have.
What is that tank next to my water heater?
A thermal expansion tank. If your house has a pressure reducing valve or a check valve on the incoming service, the plumbing is a closed system, and heated water has nowhere to expand into. Pressure spikes every heating cycle, which is hard on the tank, the T&P valve and every fixture in the house.
The expansion tank absorbs that. They do fail — quietly, after several years — and a waterlogged one is doing nothing at all.
Water where it should not be?
Call and talk to a plumber, not a script. If it can wait until morning we will tell you that too.