Water heater repair & installation

A water heater almost always gives warning before it fails. The trouble is that the warnings are easy to live with — water that runs lukewarm, a recovery time that has quietly doubled, a little rust in the hot faucet — right up until the morning the tank lets go across the laundry closet floor.

The signs, in order

1. Longer recovery. The shower that used to be fine for two people is now fine for one.
2. Rust in the hot water only. Cold runs clear; hot does not. That is the tank, not the supply.
3. Noise. Rumbling or popping is scale on the bottom of the tank boiling underneath the sediment. In Miami-Dade’s hard water this is the most common complaint we get.
4. A weeping relief valve. Sometimes the valve; often pressure the system has nowhere to put.
5. Damp under the unit. A drain pan doing its job, or a fitting starting to go.
6. Water from the tank body. That is the end. Isolate it and stop using it.

Repair or replace — honestly

Plenty of water heater faults are genuinely repairs. Thermostats, elements, thermocouples, relief valves, expansion tanks and the fittings around the unit all fail on their own while the tank is still sound, and replacing the whole unit for any of them is money wasted.

What is not a repair: corrosion through the tank wall. Once the tank body is weeping, a part fits nothing. We will say so plainly.

Where it is genuinely a judgement call — an ageing unit with a failed element, say — we will tell you what we would do in your position and why, including the case for spending nothing yet.

Tank or tankless

The right answer depends on the property and on how the household actually uses hot water.

Tankless suits properties where demand is spread through the day rather than concentrated, where space is tight enough that a tank is genuinely in the way, and where the electrical or gas supply can carry the load. In a condo, that last point is usually the deciding one, and it is worth checking before anybody gets attached to the idea.

A tank suits a household that wants a lot of hot water at the same time, first thing in the morning, and a property where the supply would need upgrading to run tankless. It is also simpler to service and cheaper to replace.

Hard water matters for both. Scale is what kills water heaters in Miami-Dade, and a tankless unit that is never descaled will disappoint faster than a tank that is never flushed.

What the installation involves

The unit is the easy part. What takes the time, and what an inspector looks at:

• Seismic and hurricane strapping, fitted properly rather than approximately
• Expansion provision — a closed system needs somewhere for expanding hot water to go
• The relief valve discharge, run full-bore to a legal termination
• A drain pan with a run to somewhere water can safely go
• Isolation valves so the next person can service it without draining the property
• Correct connection in copper, CPVC or PEX, with dielectric separation where materials meet

We complete the work to the Florida Building Code and present it for inspection where inspection applies. by a licensed Florida contractor, Lic. #CFC1433820.

Keeping it alive

An annual flush is the single most effective thing you can do here, and on a maintenance plan it happens without anyone remembering. Checking the relief valve and the expansion tank at the same visit takes minutes and catches the two faults that most often turn into a call-out.

What affects the cost

• Repair or replacement, and whether the fault is accessible
• Tank or tankless, and whether the supply needs upgrading to suit
• Where the unit lives. A garage is straightforward. A ceiling platform or a tight laundry closet in a high-rise is not.
• What the existing installation is like. Missing pans, absent isolation valves and improvised discharge lines all get put right as part of the job.
• Building requirements. Condo work brings insurance certificates, booked service elevators and restricted hours.

No prices without seeing it. The figure comes in writing first.