Plumbing & Repipe Specialist
Certified Commercial plumbers, 24/7 support
New Construction & ADU Plumbing
At GP Piping, we specialize in new construction ADU plumbing. We handle everything from the initial underground trenching to the final fixture installations. Our team ensures your independent secondary dwelling operates seamlessly, safely, and efficiently for decades to come.
Seamless Three-Phase New Construction Plumbing Installations
We align our workflow directly with your construction schedule to prevent costly project delays:
- In-Slab & Underground Rough-In: We precisely excavate, grade, and set your main 3-inch waste lines, kitchen offsets, and wet vents before your concrete slab foundation is poured.
- Frame Top-Out & Piping: Our team runs heavy-duty water supply lines, installs robust gas piping networks, and routes framework venting up through the roof structure.
- Fixture & Finish Installation: Once the drywall and paint are complete, we install your high-efficiency water heaters, sinks, showers, toilets, and custom faucets.
New construction plumbing rough in