About Cornerstone Plumbing
Cornerstone Plumbing is a family-owned independent plumber company serving Olympia, WA and the surrounding metro since 2022. The team handles everything from emergency drain clearing and water heater swaps to full repipes and sewer line replacement, with a focus on transparent, up-front pricing and clean, code-compliant workmanship. All technicians are state-licensed master or journeyman plumbers and arrive in fully-stocked trucks, which means most jobs are completed in a single visit. Customers regularly highlight the on-time scheduling, the no-pressure quoting style, and the post-job walkthrough where the lead plumber explains exactly what was repaired and why.
Cornerstone Plumbing serves homeowners across Olympia, WA and surrounding ZIP codes including 98501, 98502, 98506, 98512, 98513. Pricing is up-front and quoted in writing before any work begins, with no obligation if the estimate isn't right for your project.
Services offered
- Repiping (PEX & copper)
- 24/7 emergency response
- Sump pump install
- Toilet & faucet install
- Drain & sewer cleaning
- Garbage disposal service
- Tankless water heater specialist
- Trenchless sewer repair
Service area
Cornerstone Plumbing covers Olympia and the surrounding metro, typically responding to addresses within 25–35 miles of 98513. Same-day appointments are commonly available for non-emergency requests booked before noon, and 24/7 emergency dispatch is offered for active leaks, electrical hazards, no-heat/no-cool calls, and lockouts when applicable.
Licensing & insurance
FixNearMe verifies that Cornerstone Plumbing holds an active WA contractor license (#WA-790686) and carries general liability insurance covering work at residential properties. We re-verify licensing annually and remove any pro whose status lapses or whose review pattern deteriorates.
How to request a quote
Use the free quote form on this page to send your job details directly to Cornerstone Plumbing and up to two other nearby plumbers in Olympia. You'll receive up-front written quotes — usually within an hour during business hours — so you can compare apples to apples before booking.