“Courteous, on time, and the job was done exactly as expected. Troy gave us a very fair bid and we will use Pacific Home Electric for all our electrical needs.” Lenny Rogers · ★5
Service spotlight
Underground Electrical Trenching in Puyallup WA
Conduit trenching for subpanels, outbuildings, EV chargers, and generator feeds — buried to code. Located in Puyallup. We serve homeowners throughout Pierce County and King County, Washington.
67+ reviews 4.9 rated on Google
- Licensed & insured
- Clear communication
- Local residential focus
Proof from homeowners
Predictable Results on Underground trenching
“When our panel upgrade grew onsite, the team assessed first and worked around us at home. Professional, hard workers who want to do it right the first time.” Jacqie Dorres · ★5
“Troy beat competitor pricing on an outlet that was not working. He was straightforward, gave us a free quote when others would not, and the repair was exactly what we needed.” Jeff Kitchen · ★5
Why this matters
Above-Ground Workarounds Create Problems Underground Eventually
Running power to a detached garage, outbuilding, or EV charger via buried conduit sounds straightforward — until burial depth, conduit type, and feeder sizing collide with AHJ requirements you did not know existed.
Shallow or non-code conduit work fails inspections, creates shock and fire risk, and costs more to fix than to do right the first time.
What we do
Trenching Planned for Depth, Routing, and Future Loads
We mark utilities, dig to required depth, install listed conduit with correct radius bends, and pull conductors sized for your actual load — not the bare minimum.
Permits and inspections are coordinated upfront so the trench gets buried only after the work passes.
What to expect
Three Steps to Power in the Right Place
Safe, buried, and ready for the inspector.
1
Site walk + utility locate
We mark the run, confirm burial requirements for your jurisdiction, and size the feeder for current and likely future loads.
2
Trench, conduit + pull
We dig, install listed conduit with proper radius, pull conductors, and land terminations at both ends before calling inspection.
3
Inspection + backfill
Trench stays open until the inspector signs off — then we backfill, compact, and restore surface to a tidy finish.
Underground Trenching Across Pierce and King County
All dispatch runs from Puyallup. Same crews, trucks, and standards - whether you are five minutes away or across the lake bridge.
If you cut corners
Buried Mistakes Are Expensive to Find Again
Depth and conduit type are not suggestions.
- Shallow conduit is easily nicked by landscaping — turning a weekend dig into an outage.
- Wrong conduit type in wet locations lets moisture wick into terminations and panels.
- Under-sized feeders can't carry EV charger or shop loads you add later.
- Unpermitted underground work surfaces at sale inspection and kills closings.
Also relevant 
Related Scope for Underground trenching
Not sure which path fits? Get a free inspection and we will recommend the smallest scope that solves the issue.
EV charger installation
Dedicated circuits and wall connectors sized for your vehicle and panel.
Learn more → New construction wiring
Rough-in, trim, and lighting for new homes, ADUs, and major additions.
Learn more → Electrical service upgrades
Increase service size from meter to panel so modern loads stay safe.
Learn more → Generator installation
Transfer switches, standby circuits, and safe utility separation.
Learn more → FAQ
Answers on Underground trenching Before You Book
How deep does the conduit need to be buried?
Depth depends on conduit type and jurisdiction — typically 12–24 inches for rigid or schedule 80 PVC under residential yards. We verify the requirement for your AHJ before we dig.
Do you handle the utility locate?
Yes — we call 811 and coordinate the locate window before any ground is broken. Digging without a locate is not something we skip.
Can you run a trench for an EV charger to a detached garage?
That is one of our most common trench jobs. We size the feeder for the charger level plus reasonable future load, and keep the panel landing clean.
Start Your Underground trenching Project With Clarity
Tell us about your underground trenching project - photos welcome. Call (253) 617-9288 or send details online.