A commercial street with neighbors

Along Imperial Highway, businesses share buildings and often share drain lines. A grease problem in one restaurant's kitchen can back up into a neighboring tenant's restroom, and a water shutoff for a repair can affect several businesses at once. Coordination with the property manager is part of almost every job.

Behind the storefronts, the side streets hold single-family homes with the same tract-era traits found across the city: slab foundations, older supply pipe and clay or cast-iron laterals.

Common needs on the corridor

Property typeTypical plumbing needs
RestaurantsGrease interceptor maintenance, kitchen line jetting, commercial water heaters
Retail and officesRestroom fixtures, water heaters, after-hours repairs
Properties with irrigation or fire sprinklersBackflow assembly testing as the water provider requires
Nearby homesSlab leaks, lateral roots, water heater replacement

Handling a backup in a shared building

  1. Stop water use.Ask staff to stop running sinks and dishwashers that feed the affected line.
  2. Protect people.Keep customers and staff away from any sewage and clean up with gloves.
  3. Notify the property manager.Other tenants may be affected, and the lease may say who arranges the repair.
  4. Call a licensed plumber.Ask about after-hours scheduling and a camera inspection to find the cause.

Records a business should keep

  • Grease interceptor service dates.
  • Backflow test results submitted to the water provider.
  • Drain cleaning invoices and any camera video.
  • Water heater installation and permit paperwork.
  • Contractor license numbers verified at cslb.ca.gov.

Who to contact

  1. Permits and grease control requirements: check with the City of La Mirada.
  2. Backflow testing notices: your water provider.
  3. Gas service: SoCalGas; call 911 or SoCalGas from outside if you smell gas.
  4. Lease questions about who pays for repairs: your property manager.
Map of Imperial Highway corridor. It shows an area, not an office or a job site.

Common questions

Can repairs be done after closing?

Many contractors schedule commercial work after hours. Ask when you call.

Who is responsible for a shared drain line?

Usually the lease decides. Check it and talk to the property manager.

Do homes near the corridor have different plumbing?

They generally share the tract-era traits found elsewhere in La Mirada.

General information for La Mirada, not a quote or professional advice. In an emergency, call 911.