ADU Plumbing
ADU Plumbing for Every LA & OC Conversion
Quick answer
ADU plumbing covers the new water supply, drain, sewer, and gas lines an accessory dwelling unit, a granny flat, garage conversion, or new detached build, needs to connect to your home and city services. System Wide Services handles ADU plumbing across LA & Orange County, permits included. Call 562-269-4747.
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(562) 269-4747
Emergency service
ADU-ready plumbing
- New water, sewer & gas connections
- Permits & inspections handled
- Tankless or dedicated water heater
- Coordinated with your ADU build
What's involved
What ADU plumbing includes
Every ADU needs a reliable way to bring in clean water and carry waste out, plus gas if it has a range or gas water heater. Depending on your property and city, that can mean tapping your existing sewer lateral and water service or running new lines, and it always means permits and inspection.
- New water supply lines & shutoffs
- Drain, waste & vent (DWV) piping
- Sewer connection to your lateral or city main
- Gas line extension for range or water heater
- Kitchen & bathroom fixture rough-in and finish
- Tankless or dedicated water heater
- Permits, plan coordination & inspection
Every ADU type
Garage conversions, attached & detached ADUs
- Garage & basement conversions
- Attached ADUs (additions to the main home)
- Detached ADUs & new backyard builds
- Junior ADUs (JADUs) within the existing home
Why us
Why homeowners trust us with their ADU
- One in-house team for plumbing, gas & fixtures
- We pull permits and coordinate inspections
- Honest guidance on connecting vs. running new lines
- Electrical work available in-house too
- Upfront pricing before work begins
- 5.0-star rated across LA & Orange County
FAQ
Frequently asked questions
Have another question? Call (562) 269-4747.
Do you pull permits for ADU plumbing?
Yes. ADU plumbing requires permits and inspection in Long Beach and across LA and Orange County. We handle the permitting and coordinate the required inspections so your ADU passes and connects legally to city services.
Can my ADU connect to my existing sewer line?
Often, yes, many ADUs tie into the home's existing sewer lateral, while others require a new connection depending on capacity, layout, and city rules. We assess your property and recommend the most reliable, code-compliant approach.
Does an ADU need its own water heater?
Usually yes. Most ADUs get a dedicated water heater, frequently a tankless unit to save space, so the unit has independent hot water. We'll size and install the right option for the ADU's fixtures and layout.
Can you coordinate with my ADU contractor or builder?
Absolutely. We work alongside your general contractor or ADU builder, handling the plumbing and gas scope on the shared timeline so rough-in and finish happen at the right stages.
What affects the cost of ADU plumbing?
The main factors are how far the new lines run, whether you connect to existing services or run new ones, the number of fixtures, and gas requirements. We assess your property first and give you a clear, upfront quote, no guessing sight unseen.
Reviews
Rated 5.0 by Long Beach & OC homeowners
We didn't just collect reviews, we earned a perfect average across every one. Here's what customers mention most.
Verified Google Business Profile rating
Fast, same-day response
Customers repeatedly note how quickly a technician arrives, often the same day, and fast for emergencies.
Mentioned in 5+ recent reviews
Friendly, respectful technicians
The most-mentioned strength: professional, courteous techs who treat your home with care.
Mentioned in 12+ recent reviews
Clear explanations of the work
Homeowners praise honest, upfront communication, you understand the problem and the fix before work starts.
Mentioned in 9+ recent reviews
Planning an ADU? Let's handle the plumbing.
Same-day appointments and emergency service across Los Angeles & Orange County. Talk to a real person now.
Prefer to talk? Calling is the fastest way to reach us.
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