Construction Plumbing in Millbrae
Millbrae's ADU boom is transforming the city — homeowners are adding income units and in-law suites to their properties, plus kitchen and bathroom remodels are modernizing mid-century homes throughout Meadows, Lomita Park, and Mills Estates. Whether you're building a detached backyard unit or gutting a 1960s kitchen, GB Plumbing delivers complete construction plumbing from rough-in to final fixture.
We work closely with the City of Millbrae Building Department — knowing their specific requirements, inspection schedules, and preferred practices for smooth permit approval. This means fewer delays, no failed inspections, and a plumbing system that passes the first time.
Construction Plumbing Services
Millbrae Construction Specialties
ADU & Granny Flats
Millbrae's lot sizes make ADUs viable. We design efficient plumbing for compact backyard units.
Kitchen & Bath Upgrades
Moving drains, adding islands, upgrading to tankless — we make Millbrae remodel dreams code-compliant.
Room Additions
Adding bedrooms or expanding? We extend supply and drain to new spaces seamlessly.
Our Construction Plumbing Process
Plan Review & Pricing
We review your plans, provide detailed pricing, and identify any plumbing challenges upfront.
Permit & Rough-In
We pull permits from the City of Millbrae and install all supply and drain lines in walls and floors.
City Inspection
We schedule and pass the city plumbing inspection — ensuring code compliance before walls close.
Fixture Installation & Testing
Final fixtures installed, connections tested, and system verified for leak-free operation.
Millbrae Construction Project? We're Ready
ADUs, remodels, additions — GB Plumbing handles Millbrae construction plumbing from start to finish.
(650) 235-6443Our Happy Clients
Real people. Real results. See why homeowners across the San Francisco Bay Area trust GB Plumbing for all their plumbing needs.
🇺🇸 🇧🇷 🇪🇸 We speak English, Portuguese and Spanish
"Professional from start to finish. Our kitchen remodel plumbing was flawless."
— South San Francisco Google Review
"Excellent service! They fixed our leak in no time. Very professional team."
— Burlingame Homeowner Google Review
"Best plumber we've ever hired. Honest, reliable, and truly skilled."
— Daly City Customer Google Review
"They installed our new water heater perfectly. Clean work and great communication."
— Hillsborough Family Google Review
"On time, fair pricing, and quality work. Highly recommend GB Plumbing!"
— San Mateo Resident Google Review
"Emergency call at night and they showed up fast. Saved us from a flood!"
— Millbrae Homeowner Google Review