Castle Rock’s growing community means a lot of homeowners are adding to their homes rather than moving. Finished basements with bathrooms, home additions, detached ADUs, and kitchen and bath remodels all require new plumbing installation that needs to be properly permitted, correctly installed, and inspected before the space is used. WireNut handles the full scope of new plumbing installation in Castle Rock, from planning the rough-in layout through final fixture installation and inspection coordination.

For additions and basement finishes that require new electrical work alongside the plumbing, our electrical team coordinates the combined scope. For specific fixture types like water heaters and tankless systems, those are covered under the dedicated service pages. See the full Castle Rock plumbing services page for everything we offer.

• Basement bathroom rough-in for Castle Rock homes finishing their basement and adding a bathroom that requires new drain and supply line installation through or under the slab.
• Addition plumbing for new rooms being added to a Castle Rock home that need supply and drain lines extended from the existing system.
• Fixture installation for new sinks, toilets, showers, tubs, and appliances being added to or replacing existing fixtures throughout the home.
• ADU plumbing for accessory dwelling units being built on Castle Rock properties that need a complete plumbing system installed.
• Outdoor plumbing for exterior hose bibs, irrigation connections, outdoor kitchens, and pool equipment that need water supply lines extended to the exterior.

Here are the new plumbing installation projects our Castle Rock plumbers handle most often.

Does New Plumbing Installation in Castle Rock Require a Permit?

Yes. Any new plumbing installation beyond replacing a fixture in place requires a permit through Douglas County or the Town of Castle Rock depending on your address. This includes basement bathroom rough-in, addition plumbing, and new supply or drain line installation. WireNut handles the permit application, completes the rough-in for inspection before walls are closed, and coordinates the final inspection as part of every new plumbing installation project in Castle Rock.

How Early in a Remodel Should I Involve WireNut in Castle Rock?

Before the design is finalized. Drain line routing for a basement bathroom depends on where the slab can be cut, which is a function of the existing drain configuration and the available slope to the main stack. A kitchen island sink requires a drain run that the cabinetry design needs to accommodate. These constraints are best understood before the design is locked in rather than discovered after a contractor has submitted permits. WireNut works with Castle Rock homeowners and their contractors during the planning phase to identify what is practical before decisions are made that create expensive plumbing complications.