Hays County Septic
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Drain field replacement in Hays County / the Central Texas Hill Country

When a field has failed — sealed biomat, undersized for the soil, or collapsed lines across the whole system — replacement is the fix. It's a permitted job with a site evaluation, and the soil decides the design more than anything else.

WORKING FAILED Water moves down and away Sealed base — water has nowhere to go surfacing over the field
Once the base seals, effluent has nowhere to go but up. That is a replacement, not a repair.

Cost in Hays County / the Central Texas Hill Country: $8,000–$20,000. The spread is not random. Conventional gravity fields in good soil sit at the bottom; engineered systems the soil forces on you sit at the top.

How it goes

  1. Site evaluation by the county — soil, water table, setbacks. This determines what you're allowed to build.
  2. Design and permit. The contractor submits; the county approves. Budget time for this step.
  3. Installation — excavation, new lines or engineered unit, backfill. One to three days on site.
  4. Final inspection before the system goes back into service.

What the yard looks like after. Honest answer: a construction site for a few weeks. Sod and grading are part of the quote; landscaping is not.

Alternatives worth asking about: where a sewer main is within reach, connecting can cost less than a new field — see aerobic for how that works in Hays County / the Central Texas Hill Country.

All work is performed by TCEQ-licensed installers and licensed maintenance providers working under the county's on-site sewage facility program.

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Starting or moving a maintenance contract, or pricing a replacement. Use the details box for the system brand, whether it is currently under contract, or a closing date if you are buying or selling.

All work is performed by TCEQ-licensed installers and licensed maintenance providers working under the county's on-site sewage facility program.