ADUs are booming in San Diego. Garage conversions, backyard cottages, basement units property owners across the county are adding accessory dwelling units to generate rental income or house family.

And almost every one of those tenants wants a washer and dryer.

If your ADU doesn’t have laundry hookups, you’re leaving money on the table and limiting your rental appeal.

Call us at 1-800-388-8149 or Reach out at Plumbtech.pros@gmail.com

What Laundry Plumbing for an ADU Actually Involves

Installing laundry hookups in an ADU isn’t just running a hose bib to a washing machine. A proper laundry installation includes:

• Hot and cold supply lines of the correct diameter for washer demand.
• A standpipe and P-trap for the drain — properly vented to prevent sewer gas from entering the unit
• A dedicated 120V or 240V electrical circuit for the washer and dryer (we coordinate with your electrician).
• A washing machine shutoff valve for emergency and maintenance access.

In an ADU, you’re often working with limited space. Stackable units in a closet, or side-by-side in a small utility area. The plumbing layout has to work with the unit’s footprint.

Call us at 1-800-388-8149 or Reach out at Plumbtech.pros@gmail.com

San Diego’s ADU Regulations and Permits

San Diego requires permits for new plumbing installations in ADUs. Our laundry installation services include pulling the necessary permits and scheduling the city inspection.

This protects you as the property owner.

Unpermitted work can create real problems when you sell the property or file an insurance claim. Do it right from the start.

Why PlumbTech Pros for ADU Laundry Plumbing

We’ve done a lot of ADU work across San Diego. We understand tight spaces, shared walls between the ADU and the main structure, and the routing challenges that come with retrofitting plumbing into converted spaces.

We also work on your schedule — we know ADU projects often run alongside other contractors, and timing coordination matters.

Call us at 1-800-388-8149 or Reach out at Plumbtech.pros@gmail.com

FAQs

Can laundry hookups be added to a garage ADU conversion?

• Yes. Garage conversions are one of the most common ADU types we work on in San Diego. Plumbing can typically be run from the main house supply and drain system.

Do I need a separate water heater for my ADU’s laundry?

• Not necessarily. Cold water wash cycles don’t need hot water at all. If the ADU already has a hot water supply, it can typically serve the laundry hookup as well.

How much does laundry plumbing installation cost for an ADU?

• Cost varies depending on how far the new hookups are from existing supply and drain lines, and whether any wall or slab penetration is needed. We provide a written estimate after a site visit.

How long does the installation take?

• Most ADU laundry plumbing installations are completed in one day. Longer runs or structural challenges may extend that slightly.

Make Your ADU More Rentable

San Diego tenants want in-unit laundry. PlumbTechPros installs laundry plumbing in ADUs throughout San Diego County – fast, permitted, and done right.

Call us at 1-800-388-8149 or Reach out at Plumbtech.pros@gmail.com