A marketing service, not a licensed contractor. Septic work is performed by independent local contractors.
Septic Indiana

Septic permits and septic contractors in Indiana

In Indiana your septic permit comes from your county health department, not from the state. A written construction permit signed by the health officer is required before a new system is built, before a manufactured or modular home is set, and before a residence is replaced, reconstructed or expanded in a way that may add bedrooms. Counties issue more than 15,000 of those permits a year, plus about 6,000 repair permits, and each county runs its own paperwork. This site explains the process county by county and connects you with an independent local septic contractor.

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Your request goes to an independent local septic contractor serving your Indiana county, not a national lead list.

Prefer to talk? Call (317) 978-3952.

Who issues a septic permit in Indiana?

The local health department. Under the state rule the owner, or the owner's agent, has to obtain a written construction permit signed by the health officer before the work starts. The state writes the rule and reviews commercial plans; the county issues the residential permit, inspects the work, and holds the records.

Source: 410 IAC 6-8.3-53(a), Indiana Administrative Code, read 2026-08-20.

When is a permit required?

The permit is required before the start of construction of a residence, the placement of a manufactured, modular or mobile home, the construction or placement of a residential outbuilding that will include plumbing or the addition of plumbing to an existing one, and the replacement, reconstruction, expansion or remodeling of a residence that may increase the number of bedrooms.

A concrete septic tank set into an open excavation beside a corn field in rural Indiana

Source: 410 IAC 6-8.3-53(a), read 2026-08-20.

Does Indiana license septic installers?

No. Indiana has no state license for septic installers. What exists instead is a county layer: many counties require an installer to hold an IOWPA certificate, some run their own installer permit and exam, and the requirement is different from one county to the next. That is why "is this contractor allowed to do the work here" is a county question in Indiana and not a state one.

What Indiana counties require of a septic installer

A green septic riser lid set flush in a mowed lawn at an Indiana home

Source: Indiana Professional Licensing Agency, professions list, read 2026-08-20.

What has to happen before the county will issue the permit?

Before any construction permit is issued, and before a soil absorption system is replaced or altered, an on-site evaluation including a description of the soil profile has to be conducted. The soil is described by a soil scientist using NRCS guidelines, and the profile is recorded to a depth of five feet or until a layer is reached that cannot be read.

In practice that means the soil work comes first and the permit follows it, which is why a soil evaluation and system design is usually the first thing a homeowner pays for.

An open soil pit showing the soil profile horizons on an Indiana property

Source: 410 IAC 6-8.3-56(a) to (c), read 2026-08-20.

What happens if a system fails?

If a residential on-site sewage system fails, the owner has to correct the failure within the time limit set by the health officer. Where a component is defective, malfunctioning or in need of service, the health officer may require it repaired, replaced or serviced within a set time limit.

The practical path is a repair permit and a contractor who can work to what the health officer ordered. See septic repair.

A gravel-bedded drainfield trench open in an Indiana yard before it is covered

Source: 410 IAC 6-8.3-55(a) and (b), read 2026-08-20.

An open distribution box with its outlet pipes running to a gravel trench at an Indiana septic system
The distribution box is where one county inspector will look first, and where a failed system usually shows itself.

Counties this site covers

Each county page carries that county's own process, not a copy of the state page.

What changes from one Indiana county to the next

Need the job done, not just the rule explained

Your request goes to an independent local septic contractor serving your Indiana county, not a national lead list.

Tell us the county and the job

Last reviewed 2026-08-20.

(317) 978-3952