License #LIMITPS810CL · USDOT #3348999 · Serving Snohomish & King County, WA

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Backyard sewer line replacement trench with old cast-iron pipe removed and new gravel bedding

Trenchless vs. Dig: How Sewer Line Replacement Actually Works

“Replacing the sewer line” used to mean trenching your whole yard. Often, it doesn’t anymore. Here’s how the options compare.

Traditional dig

Open-trench replacement is sometimes the only honest answer — a fully collapsed line, a bad slope, or a line under a structure. It’s disruptive but straightforward.

Trenchless: pipe lining

A resin-soaked liner is pulled through the old pipe and cured in place, forming a new pipe inside the old one — no trench, minimal digging at the access points.

Trenchless: pipe bursting

For pipes too far gone to line, a bursting head pulls a new pipe through while breaking the old one outward. Your driveway and landscaping mostly stay put.

Which one’s right?

It depends entirely on the line’s condition — which is why we camera it first and show you the footage. You shouldn’t pay to dig up a yard on a hunch.

Little-Known Fact

Most failing lines can be relined or burst in place — no full-yard trench. Always ask before anyone reaches for a backhoe.

Rather have it handled by a pro?

One owner, one local crew, one straight number — across Snohomish & King County.

Call (425) 870-2946

Free Estimate

Let’s Get You a Quote

Tell us what’s going on — you’ll hear back fast with a straight number, from Brandon, not a call center.

Sewer & Drain Help

What’s Going On?

Tell us what you’re seeing and we’ll help you figure out the fix — fast. Active emergency? Call (425) 870-2946 and you’ll reach Brandon directly.