Water Heater Repair and Installation in Denver

A gas tank heater is a glass-lined steel tank with a burner underneath and a sacrificial anode rod inside that corrodes so the tank doesn't. Most failures trace back to one of these:

• Sediment. Minerals settle on the tank floor. On gas units they insulate the steel from the flame, causing rumbling, slow recovery and an overheated tank bottom. On electric units they can bury the lower element.
• Ignition and controls. Thermocouples, igniters and gas valves wear out on gas heaters; elements and thermostats on electric ones. These are repairs.
• Anode depletion. Once the anode is gone, the water attacks the tank. Replacing the rod early is inexpensive; afterward it does little.
• Relief valve. A dripping relief valve may be worn, or it may be reacting to real pressure spikes. Replacing it without finding out which is a common mistake.

Tankless units scale up inside the heat exchanger instead. Annual descaling, covered under plumbing maintenance, prevents much of that.

Age matters, but it isn't the whole answer. The manufacture date is on the rating plate, often coded into the serial number. An old heater with a failed gas valve is a different call from a five-year-old unit with the same fault.

Leaks at a fitting or drain valve can be fixed. A leak from the tank shell can't, and it gets worse without warning. If the floor is damp and the source isn't obvious, our leak repair service can trace it.

Gas appliances are rated for specific altitude ranges, and every water heater's installation manual states its range. Some standard models are approved for Denver's elevation as built; others need a high-altitude version or a field adjustment, and most gas tankless units have an altitude setting in their controls. We check the rating against the address before ordering.

An atmospheric water heater often shares a flue with an older furnace. Replace that furnace with a high-efficiency model vented through the wall, and the water heater is left alone in a flue sized for two appliances, where it may not draft properly. A backdraft test catches it.

When the main has a pressure-reducing valve or check valve, heated water has nowhere to expand, and the plumbing code calls for an expansion tank or similar device on storage heaters.

A like-for-like tank swap is the simplest job: same fuel, same spot, usually the same venting.

Gas tankless units heat on demand and don't run out between showers; ENERGY STAR cites a life expectancy around 20 years. They draw far more gas while firing, so many homes need a larger gas line and new venting. In winter, colder incoming water means fewer gallons per minute at shower temperature.

Heat pump water heaters pull heat from the surrounding air. They need floor space, air volume, a condensate drain and usually a dedicated circuit, and they cool the room they sit in. Xcel Energy and state programs have offered rebates; terms change, so confirm eligibility before buying.

Before any visit:

1. Photograph the rating plate on the side of the heater.
2. If it's leaking, close the cold valve above the heater and turn off the breaker or set the gas control to off.
3. Clear stored items away from the venting and valves.