3 services · Highlands Ranch
Water heaters in Highlands Ranch, 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 Highlands Ranch
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 Highlands Ranch
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 Highlands Ranch: what's different
Highlands Ranch was built in phases from the early 1980s, so Northridge and Eastridge homes are on their second or third water heater while newer Westridge, Southridge and Backcountry homes are reaching their first replacement. Because Highlands Ranch is unincorporated, the permit comes from the Douglas County Building Division.
Two-story homes with finished basements and larger households often need a bigger tank or a tankless unit. Many homes have a pressure reducing valve, which makes the system closed and calls for a thermal expansion tank at the heater.
- Water and sewer in Highlands Ranch
- Centennial Water and Sanitation District provides water and sewer service to Highlands Ranch.
- Permits in Highlands Ranch
- Because Highlands Ranch is unincorporated, plumbing permits come from the Douglas County Building Division.
Highlands Ranch housing and plumbing
Most homes are two-story with basements. Early homes from the 1980s are now replacing original fixtures, shutoff valves and supply lines, and some early-era supply piping may need a closer look. Newer phases have PEX and modern water heaters.
Other Highlands Ranch conditions that affect plumbing
- First-generation homes aging: The earliest neighborhoods are reaching the age where original water lines, valves and drain connections start to leak.
- Basement finishing: Many basements were finished years after construction. Pipes hidden behind drywall along foundation walls are harder to reach when a leak starts.
- Outdoor watering: Centennial Water has watering rules and conservation programs; a leaking irrigation backflow device or valve can waste a lot of water quickly.
- HOA and irrigation season: Most Highlands Ranch neighborhoods have irrigated yards and HOA landscaping rules, so spring sprinkler start-up, backflow testing and fall blowouts are routine plumbing tasks.
Neighborhoods and ZIP codes
Plumbers on Thawline cover Highlands Ranch and Douglas County, including Northridge, Eastridge, Southridge, Westridge, Backcountry. ZIP codes: 80126 · 80129 · 80130.
When to call a plumber in Highlands Ranch
- 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 Highlands Ranch
Who issues water heater permits in Highlands Ranch?
How long does a water heater replacement take?
More plumbing in Highlands Ranch
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