New ADU, home addition, upgraded service line, or a property that needs its own water connection — Eco-Flow installs new water lines throughout Santa Cruz County. Properly sized, permitted, and coordinated with Santa Cruz Water Department requirements.
Water line installation is distinct from repair — it's a new line, not a fix to an existing one. Here's when you need it.
Water line installation is a planned project — not a same-day service call. It involves design decisions, permit applications, coordination with the Water Department, and excavation work. Here's how we approach it.
Call us early. The best time to involve a plumber in a water line installation is at the planning stage — before permits are pulled and before the contractor's schedule is set. We can advise on pipe sizing, connection points, and Water Department requirements that affect the design.
Permits are required. New water line installations require building permits from the City of Santa Cruz or Santa Cruz County. Connections to the city water main also require coordination with the Santa Cruz Water Department — who manages the meter installation on their side. We handle the permit application and Water Department coordination as part of every installation.
Trenchless options where available. For new water line runs across established yards and landscaping, directional boring can install the new pipe with minimal surface disruption — protecting mature trees, driveways, and existing hardscape.
| Application | Recommended Size | Notes |
|---|---|---|
| Single-family home (1–2 baths) | ¾ inch | Standard for most Santa Cruz homes |
| Single-family home (3+ baths) | 1 inch | Recommended for higher demand |
| ADU — studio or 1BR | ¾ inch | From main house or separate tap |
| ADU — 2BR+ | 1 inch | Verify with Water Dept. for separate meter |
| Service line upgrade | 1 inch | Meaningful pressure improvement |
| Commercial property | 1–2 inch | Depends on fixture count & use |
Sizing depends on total fixture count, pipe length, and existing system pressure. We assess on-site before recommending — these are general guidelines only.
18 years of water line work in Santa Cruz means we know the local conditions, the Water Department requirements, and the specific challenges of this city's housing stock.
Questions we hear most from Santa Cruz homeowners and developers planning water line installations.
The highest-rated plumber in Santa Cruz County.
New water lines often connect to broader plumbing projects.
Call us early — permits, sizing & Water Department coordination all take planning.
