3 services · Denver
Water heaters in Denver, CO
Most tank water heaters last about 8 to 12 years. A plumber can often repair a heater that stops making hot water, but a tank that leaks from the bottom has failed and needs to be replaced. Tankless heaters last longer but cost more to install, especially if the gas line or venting has to change.
- Licensed local plumbers
- The problem explained before work starts
- Price agreed before the job begins
Water heaters services in Denver
Water heater repair
UrgentIf a gas water heater has no hot water, the pilot, thermocouple or gas valve is the usual cause; on an electric heater it's usually an element or thermostat. Those parts are repairable. A tank that leaks from the bottom can't be repaired and needs to be replaced.
Water heater replacement in Denver
A leaking tank or a heater past about 10 years old is usually replaced rather than repaired. A proper install includes a permit, correct venting (adjusted for altitude where needed), an expansion tank where required, a drip leg on the gas line and a relief valve discharge pipe.
Tankless water heaters
A tankless water heater heats water as it flows, so it doesn't run out, but it needs a larger gas line, its own venting and a unit rated for your elevation. Installed correctly and descaled regularly, it can outlast a tank heater.
Local conditions
Water heaters in Denver: what's different
Denver sits at about 5,280 feet, and water heaters here are installed and vented for altitude. In older homes the heater is often in a tight basement utility room next to the furnace, sharing a flue that has to be checked whenever the heater is replaced.
Many Denver houses are now on their third or fourth water heater, while the original drain and supply pipe around them is far older. A replacement is a good time to add a thermal expansion tank, replace corroded shutoff valves and confirm the venting meets current code. Permits come from Denver Community Planning and Development.
- Water and sewer in Denver
- Denver Water supplies drinking water. Wastewater is collected by the city and treated by Metro Water Recovery. Homeowners own the sewer service line from the house to the main in the street.
- Permits in Denver
- Plumbing permits and inspections are handled by Denver Community Planning and Development. Sewer work in the street also needs a right-of-way permit from the city.
Denver housing and plumbing
Bungalows and foursquares from the 1900s–1930s often have clay sewer lines and partial galvanized supply lines, sometimes spliced to copper during earlier remodels. Post-war ranches from the 1950s typically have cast-iron drains and copper or galvanized supply. Many have finished basements added decades later, which hide pipes that run along cold foundation walls.
Other Denver conditions that affect plumbing
- Roots in clay sewer laterals: Mature silver maples, elms and cottonwoods line many older Denver streets, and their roots find every joint in clay sewer pipe. Recurring main line clogs in a pre-1960 home are usually roots.
- Galvanized supply pipe: Low pressure and rusty water in older homes usually trace back to galvanized steel pipe corroding from the inside. Partial repipes are common where only some runs were replaced.
- Lead service line replacement: Denver Water runs a lead service line replacement program for homes with lead pipes from the main. If you get a notice, the utility's program can cover replacement of the service line.
Neighborhoods and ZIP codes
Plumbers on Thawline cover Denver and Denver County, including Capitol Hill, Highland, Washington Park, Park Hill, Baker, Berkeley, Harvey Park, Montclair, Central Park, Green Valley Ranch. ZIP codes: 80202 · 80203 · 80204 · 80205 · 80206 · 80207 · 80209 · 80210 · 80211 · 80212 · 80216 · 80218 · 80219 · 80220 · 80222 · 80223 · 80224 · 80230 · 80231 · 80236 · 80237 · 80238 · 80239 · 80246 · 80247 · 80249.
When to call a plumber in Denver
- No hot water, or hot water that runs out much faster than it used to
- Water pooling around the base of the tank
- Rumbling or popping from the tank
- Rusty or smelly hot water
- A pilot that won't stay lit or a tankless unit showing an error code
- A heater more than 10 years old before it fails
How these problems start and how to choose between repair options is covered in the water heaters guide.
Water heaters questions in Denver
Does a water heater replacement in Denver need a permit?
How long does a water heater replacement take?
More plumbing in Denver
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