Demolition Services in Seattle & Tacoma, WA

Demolition Services in Seattle & Tacoma, WA

Getting water, sewer, gas, and electrical to your property takes more than just digging a hole. It takes proper depth, the right bedding material, and exact coordination with utility providers and local inspectors. Innovation Excavation handles utility installation and trenching for residential and commercial projects across Western Washington.

Whether you are connecting a new home to city services, replacing an aging water main, or running conduit for electrical service, we get it done right and on schedule

01.

Trenching for New Construction

New construction almost always requires utility trenching. We work closely with general contractors to schedule trenching in the right sequence so other trades are not held up waiting for us. We dig to the required depth, install bedding material, and backfill and compact to spec so the ground settles properly after the job is done.

In Western Washington, trench depth varies by utility type and local code. Water lines typically go at least 18 inches deep to stay below frost depth. Sewer laterals are installed with the right slope for gravity flow, usually a quarter inch per foot. We know these requirements and follow them on every job.

02.

Water Line Repair and Replacement

Old galvanized and clay water lines fail. When they do, the signs show up fast: low pressure, soggy ground, or a spiking water bill. We locate the leak, excavate, and repair or replace the line. We work quickly because we know a broken water line is not something you can wait on.

For full replacements, we install modern PVC or copper lines that are designed to last. We also improve accessibility points when possible so future repairs are faster and cheaper.

03.

Sewer Lateral Installation and Repair

Connecting to the public sewer system or repairing a damaged lateral requires coordination with your local utility provider and a building permit in most cases. We handle the permit process, schedule the required inspections, and complete the work to code. We have installed sewer laterals throughout King County, Pierce County, and the surrounding area.

Utility Services We Install and Repair

Frequently Asked Questions

How deep do utility trenches need to be?

Depth depends on the utility type and local code. In Western Washington, water service lines are typically installed at 18 to 24 inches deep. Sewer laterals follow a slope rather than a fixed depth. Electrical conduit depths vary based on voltage and whether the conduit is in a traffic area. We follow local code on every job and get inspections when required.

Do you hand dig around existing utilities?

Yes. When we are working near existing buried utilities, we hand dig or use vacuum excavation to avoid damage. We call 811 before every job to have utilities marked, and we take extra care in areas with dense underground infrastructure.

Can you repair a broken water line quickly?

Yes. Broken water lines are a priority for us. We aim to respond fast and get the line repaired or replaced in a single day when possible. We carry common pipe sizes and fittings on our trucks to avoid delays.

Do you work with the city on permit and inspection requirements?

Yes. We coordinate with Seattle, Tacoma, and other local municipalities on all required permits and inspections. We schedule inspections at the right stages of the job so work does not get held up waiting for approvals.

Need a utility line installed or repaired? Call Innovation Excavation for a free estimate. We serve King County, Pierce County, and all of Western Washington.

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