New Plumbing Installation in Tempe, AZ
New plumbing installation is a different job than repair or replacement: it's building a system from scratch, not fixing one that's already there.
Plumbing installation covers new supply and drain lines for spaces that don't have them yet: an accessory dwelling unit, a room addition, a full kitchen or bathroom remodel adding new fixtures, or new construction. This is a rough-in and layout job at its core, running lines, setting drain slopes, and placing supply stubs before walls and flooring close in around them, distinct from repairing or replacing an existing system.
Arizona's 2024 statewide ADU law, House Bill 2720, requires Tempe and other cities over 75,000 residents to allow accessory dwelling units on single-family lots, and that's created real, steady demand for exactly this kind of ground-up plumbing work across our service area.
What This Covers
ADU Plumbing
A detached or attached accessory dwelling unit needs its own full kitchen and bathroom rough-in, tied into the main line or a new service connection.
Room Additions
Extending a home's footprint means extending supply and drain lines to reach new fixtures in the addition.
Kitchen & Bath Remodels
A remodel that relocates a sink, adds a second bathroom, or moves a fixture's position needs new rough-in work, not just a fixture swap.
New Construction
A new build starts with a completely blank plumbing layout, planned and installed from the foundation up.
The Rough-In Process
Layout Planning
Supply and drain line routing is planned around the space's actual fixture layout before anything gets installed.
Rough-In Installation
Lines are run through walls, floors, and slabs while everything is still open and accessible.
Pressure & Drain Testing
The new system is pressure-tested and drain-tested before walls close in around it, since problems are far cheaper to catch now than after.
Permit & Inspection
New plumbing installation requires a permit and inspection from the City of Tempe, which we handle as part of the job.
Fixture Trim-Out
Once walls and flooring are finished, final fixtures, faucets, toilets, sinks, are set and connected as the last step.
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What This Actually Costs
Every quote is confirmed in writing before we start. Real factors that affect price:
Free estimates are available for non-emergency work, and pricing is confirmed before any emergency repair begins.
Common Questions
Yes. Every ADU in Tempe requires a building permit, reviewed administratively by the city, and the plumbing rough-in is inspected as part of that process. We handle the permit and inspection scheduling as part of the job.
Often, yes, depending on the main system's capacity and the ADU's distance from existing lines. In some cases a new service connection is the more practical option, which we assess during planning.
Installation builds a new system where none existed, rough-in, layout, and permit-inspected new construction. Repair and replacement work on an existing system that's already in place.
Yes. Relocating a sink, adding an island with plumbing, or reconfiguring a kitchen's layout all require new rough-in work, which we plan and install as part of the remodel.
Yes, free estimates are available, though a project's exact layout and fixture count are usually confirmed on-site before a final quote.
According to Tempe's own ADU standards, size is capped at 1,000 square feet or 75% of the main home's floor area, whichever is smaller. A larger ADU with a full kitchen and bathroom naturally needs more extensive rough-in than a smaller studio-style unit.
Often Comes Up Together
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