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Plumber in Castlewood, CO: Which District, Which Permit Office and Which Pipe

Castlewood is about a 19-minute drive from Aurora, and a neighborhood inside the City of Centennial, not a city of its own. Several of the names around it belong to other places, which makes the first question on a plumbing call a simple one: which address?

Hand turning a threaded cap on a galvanized pipe elbow

Distance: Castlewood is about a 19-minute drive from Aurora.

Castlewood is a neighborhood, and the name is used elsewhere

Castlewood is not a city, a census place or any kind of government. National place records list it as a named place inside the City of Centennial, in Arapahoe County, with the Centennial Building Division as the city office for permits (City of Centennial Building Division). A Census place called Castlewood exists in another state, which is why web searches mix it up.

Nearer by, a district and a park that share the Castlewood name lie in Greenwood Village. According to Centennial’s district map, that district reaches only about 5 percent of ZIP code 80112 on this side and is mostly a Greenwood Village utility, so it does not serve most Castlewood addresses. A Castlewood caller should not be sent there by default; the Greenwood Village page covers that place.

Water and sewer: who serves Castlewood addresses

For the Willow Creek, Walnut Hills, Hunters Hill, Foxridge and Homestead neighborhoods, Centennial’s district map shows Southgate Water and Willows Water as the water providers and Southgate Sanitation District as the sewer provider (City of Centennial special district map). Under Southgate’s rule, the owner is responsible for the sewer lateral as far as the connection to the main (Southgate rules). Southgate’s phone number is 303-779-0261.

Sources: City of Centennial special district map and Southgate rules, read 2026-10-30.
QuestionWho answers itWhat to do
Weak pressure at the main, a meter leakSouthgate Water or Willows Water, by addressCall the district
Sewer main blockedSouthgate Sanitation DistrictCall the district
Sewer line from the house to the mainThe owner, in Southgate’s rulesCall a plumber, then involve the district if the main is the problem
Permit for a repair or replacementCity of Centennial Building DivisionAsk the plumber who applies

Need a plumber in Castlewood? Call the dispatch line.

Call (303) 567-7524

Septic, sewer or well: what Castlewood homeowners have

In the Castlewood area covered by the city’s district map, the district map shows sewer service from Southgate Sanitation District throughout, and water from Southgate Water and Willows Water. That makes septic systems and private wells unlikely in the neighborhoods listed above, though a county parcel lookup settles it for a specific address. For a sewer backup, the sewer lateral page sets out the repair options.

Hands holding channel lock pliers on a cleanout cap in a basement
A stuck cleanout cap needs the right tool and some patience so the threads are not damaged.
Water meter in a concrete ground box with dry leaves fallen around it
Leaves and debris in a meter box hide the lid and the shutoff, so keep the area clear.

Permits for plumbing work come from Centennial

Because Castlewood sits inside Centennial, the Building Division at the Civic Center, 13133 East Arapahoe Road, issues the permits. Applications and contractor licenses are handled online only, plumbing is among the work the city lists as needing a permit and contractors must be licensed with the city (City of Centennial Building Division). That shapes what a plumber in our network proposes, since a heater replacement, a repipe or new gas piping each brings a permit and an inspection.

Find out who files the permit and how the inspection gets booked. For a heater replacement, the state’s plumbing board also calls for a licensed plumber on a registered contractor’s staff (plumbing board notice); you may ask for license details beforehand.

Mailing city, ZIP code and unincorporated pockets

ZIP code 80112 carries an Englewood mailing name, and it is split among Centennial, Greenwood Village, Cherry Hills Village and unincorporated areas of the county (City of Englewood ZIP code clarification). Do not search Englewood permits for a Castlewood address. In the unincorporated parts of 80112, Inverness and Dove Valley among them, permits come from the county instead: call Arapahoe County’s public works permitting staff on 720-874-6600.

Master-planned and association-managed streets

Centennial’s registry lists homeowner associations for Walnut Hills, Willow Creek 1 through 3 and Hunters Hill, each with a website. Association rules can limit when contractors may work, where trucks may park and whether a project needs approval, so check the association before a larger job such as a repipe or a water heater swap. No source states those rules for the neighborhood as a whole.

What a plumber in our network can do in Castlewood

Calls for clearing a clogged drain, fixing a water heater and leak repair come up most. Gas work, pipe replacement and the rest go through the same line too: gas line work, replacing old supply pipes, finding a slab leak, main water line, faucet and toilet repair, garbage disposal repair, tankless water heater service, installation, water filtration and drying after a flood. A plumber in our network confirms the scope on site.

Emergency plumber in Castlewood

An after-hours leak or backup in Castlewood goes to the dispatch line, which is open at all hours. The dispatcher confirms the address and which district serves it; the homepage has the first steps.

Neighborhoods, landmarks and ZIP codes covered in Castlewood

These places are verified in the City of Centennial’s registry and parks layer or in national place records.

Neighborhoods

  • Castlewood the neighborhood itself, ZIP 80112
  • Willow Creek ZIP 80112
  • Walnut Hills ZIP 80112
  • Hunters Hill ZIP 80112
  • Inverness unincorporated, ZIP 80112

Landmarks and prominent locations

  • Willow Creek Park community park
  • Hunters Hill Park city park
  • Walnut Hills Park city park
  • Foxhill Park city park
  • Willow Creek Shopping Center retail center

The Castlewood ZIP code on the network

  • 80112
Call (303) 567-7524 and the dispatcher will confirm your address. ZIP code 80112 is shared by several cities and unincorporated areas, so coverage is checked by street address.

Nearby areas

Neighbors with their own pages, in the order the roster lists them for this area.

A local question about Castlewood

Are Castlewood homes on septic, sewer or a private well?

In the Castlewood neighborhoods on Centennial’s district map, sewer service comes from Southgate Sanitation District and water from Southgate Water and Willows Water, so sewer and a public water supply are the norm.

A parcel lookup settles it for one address. If the main is the problem during a backup, the district handles that part.

Plumbing problem in Castlewood?

The dispatch line answers 24 hours a day, 7 days a week.

Call (303) 567-7524
Call (303) 567-7524 · 24/7 dispatch