Water Heater Replacement in Greenwood Village, CO

Does Greenwood Village require a permit for a new water heater?

Yes. Community Development's Building Permits & Inspections group lists water heater replacement and other plumbing work among residential projects that need a permit. Applications go through the city's Online Access Portal, and questions can go to 303-486-5783 or [email protected]. The city also requires plumbers working here to hold a Greenwood Village contractor license, so it's fair to ask anyone you hire whether they're registered with the city before work starts. A plumber who works here regularly will already have that sorted.

Which water provider serves my house, and does it matter?

It depends on the address. Denver Water runs the system directly in the City of Greenwood Village Total Service area, while Southgate Water District and Cherry Creek Village Water District serve other parts of the city using Denver Water supply. The city publishes Water Districts and Sanitation Districts maps so residents can look up their provider. Denver Water's 2026 report lists average hardness around 105 ppm, ranging from about 55 to 124 ppm. That's moderate, enough for some sediment to collect in a tank over the years, so flushing annually helps a new heater keep its capacity.

What's involved in replacing a heater in a larger home?

Bigger houses often have more bathrooms, longer pipe runs and larger soaking tubs, so the replacement is a good moment to rethink capacity. Some owners move to two heaters, a larger tank, a tankless unit or add a recirculation line to shorten the wait for hot water at distant fixtures. Each option affects gas line sizing and venting, which a plumber should check before quoting. If the heater sits in a finished basement, a drain pan with a proper outlet is worth including. Xcel Energy supplies gas in the city; if you ever smell gas, leave the house first, then call 911 and Xcel at 1-800-895-2999 from outside.

A local note

Because providers vary across the city, the water district on your bill, not the city, is who to call for a shutoff at the curb or a main break. Keep that number handy alongside the heater's model and age when you call for quotes.