Code-Compliant ADU Plumbing Built for LADBS Approval

We design and install complete ADU plumbing systems that meet Los Angeles codes, pass inspection, and perform reliably — without delays or costly rework. Fully licensed, bonded, and insured.

Get Your Free ADU Plumbing Quote

No obligation - Licensed professionals - Clear upfront pricing

Serving Los Angeles Since 2022

Over 200 Verified 5-Star Reviews

Licensed & Insured Professionals

Licensed & Certified for LA ADU Plumbing

Our team meets the highest standards — fully licensed, bonded, insured, and knowledgeable about Los Angeles ADU requirements.

Why ADU Plumbing Requires Specialized Expertise

ADU plumbing isn't a repair job — it's a complete system that must pass strict Los Angeles inspections on the first try.

Built to LA City Code

Every system meets LADBS and California Plumbing Code for smooth approval.

Designed for Longevity

Proper sizing and venting prevent future failures and costly repairs.

Integrated Safely

We connect to existing plumbing without overloading or violating city requirements.

Inspection-First Approach

Installed with inspectors in mind to eliminate delays and failed inspections.

Common ADU Plumbing Challenges in Los Angeles

ADU plumbing isn't a repair job — it's a complete system that must pass strict Los Angeles inspections on the first try.

ADU-specific water & sewer sizing requirements
Navigating LADBS & local ordinance variations
Separate vs. shared utility connections
Venting & drainage code violations
Failed inspections causing delays & fines
Inexperienced plumbers leading to costly rework

Our Solution

Los Angeles-based ADU plumbing specialists. We design systems for LADBS approval, ensuring your project passes inspection the first time — eliminating delays, fines, and rework.

Complete ADU Plumbing Services

Everything required for a fully functional, inspection-ready ADU — handled by one licensed team. No need to coordinate multiple contractors.

Water supply line installation
Drain, waste & vent (DWV) systems
Kitchen & bathroom plumbing
Water heater installation (tankless/standard)
Gas line installation (if required)
Laundry plumbing hookups
Pressure testing & inspection prep
Main Sewer Line Capacity Verification (LA-specific)

All installations meet LA City, County, and California Plumbing Code requirements.

Our Streamlined ADU Plumbing Process

Step 1

Plan Review & Free Estimate

Understand requirements before work begins

Step 2

Code-Compliant & Permitting

Systems built to meet LADBS standards

Step 3

Precision Installation & Testing

After installation complete all necessary tests and city inspections.

Step 4

Final Connections & Approval

Ensure everything is ready for use and obtain official sign-off.

We coordinate with your builder, architect, and LADBS to keep your project on schedule.

WHAT CLIENTS SAYS ABOUT US

Trusted ADU Plumbing Across Los Angeles

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Dimitry Karponosov

04:33 26 Nov 25

Hi-Tech Plumbing were doing several different jobs at my house and I was impressed with professionalism and strong work ethics of every single technician/Plummer who was on site. Most importantly, they are honest and won’t be overselling you unnecessary parts and/or jobs. Thank you, Hussein & Co!

Oybek Bahronov

05:39 15 Jun 25

Nice and quick service. Friendly guys. Recommend their services.

Danial Khan

15:37 17 Mar 25

Hi-Tech Plumbing Services Inc. is outstanding! Sam was friendly, professional, and incredibly fast. He arrived shortly after the call, quickly diagnosed the issue, and had it fixed in no time. The quality of the work was top-notch, and the customer service was excellent. I highly recommend Hi-Tech Plumbing Services Inc. for any plumbing needs!

Chris S.

06:48 13 Mar 25

Lovely people and super thorough. Thanks!

Nicole Prizer

06:28 13 Mar 25

Very professional and great customer service. I would recommend to others!

Hailey Phan

05:00 13 Mar 25

Very professional, prompt, and efficient. They fixed my issue quickly, explained everything clearly, and charged a fair price. Great customer service Highly recommend!

Rylan Vu

04:55 13 Mar 25

AWESOME SERVICE!!! They were very nice and I would recommend to use them for any services needed.

  Thank you Sam!! You were the most cordial, effective and fast, such a relieve!!! He replaced a leaky valve and adjusted our water heater to get circulation everywhere!! Thank you!!!

Andy B.
2/19/2025

  Great job and fair best price. Quick response and gas work with inspection! Thanks Sam!

Andrei D.
4/03/2025

  Amazing experience! He came out same day and took the time to go to the store and get what was needed to make sure we had hot water. Very friendly... read more and fast service. Highly recommended

Kristin S.
2/25/2025
  Our waterless tank was non-functional and this company answered the phone call quickly, diagnosed the problem quickly, ordered parts and installed within days. We are back with hot water and... read more

Shawna W.
4/10/2025

  Quick and efficient! Unclogged our main line. We're very pleased with their services.

Melissa G.
4/27/2025

  We had High Tech come out to fix a broken water shut off valve at our home. Sam showed up within the time frame he said he would and got... read more

JuanandMegan V.
1/02/2025
  We called Sam on a Saturday evening for an emergency kitchen sink clog. Even though it was dinner time, he showed up quickly and fixed the issue efficiently. He was... read more

Terri L.
3/10/2025

  Credit where credit is due! They were set out by AHS home warranty and I usually dread who they send out - not these guys! They were professional, on-time and... read more

Delta B.
1/27/2025

  They came and did everything fast and were very friendly would highly highly recommend to anybody who needs plumbing done quick. They also made sure to clean up really good... read more after they were finished.

Dee L.
2/03/2025