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ADU & New Construction Plumbing in Los Angeles

Full-Service Plumbing for Your ADU or New Build

Los Angeles's accessory dwelling unit boom has made ADU construction one of the most common residential projects across the city, and getting the plumbing right the first time is critical to passing inspection and avoiding costly rework. Reyes Plumbing Los Angeles LLC provides full rough-in and finish plumbing for ADUs, garage conversions, and new residential construction, coordinating directly with your general contractor and architect.

Our ADU plumbing scope typically includes tying new supply and drain lines into the existing main line or water main, installing a separate water heater sized for the unit, setting up kitchen and bathroom rough-in per approved plans, and coordinating sewer lateral connections where required by the city. We're familiar with the permitting requirements specific to LA's ADU ordinance and work directly with inspectors through rough-in, top-out, and final inspection stages.

For full new construction projects, we handle the complete plumbing scope from underground rough-in through fixture installation, including gas line runs for tankless water heaters and kitchen appliances. We work on a defined schedule alongside your other trades so plumbing never becomes the bottleneck holding up your project timeline.

ADU Ordinance Experience

On-Schedule Delivery

Full Permit Support

General Contractor Friendly

Frequently Asked Questions

Can you handle the full plumbing scope for my ADU?

Yes, from underground rough-in through fixture installation and final inspection, we manage the complete plumbing scope for ADU projects.

Do you work directly with general contractors?

We regularly coordinate schedules and scope directly with GCs, architects, and homeowners acting as their own contractor.

Can my ADU share a water heater with the main house?

It depends on distance and capacity; we evaluate whether a shared or dedicated water heater makes more sense for your specific layout.

Start Your ADU Plumbing Scope

Call +13803330143