The policies a septic business carries
Septic work involves heavy trucks on lawns and sewage on the ground. A spill, a crushed line under the truck or a contaminated well are the claims to plan for.
| Policy | Average a month |
|---|---|
| General liability | $83 |
| Tools and equipment | $42 |
| Commercial auto | $270 |
| Workers' compensation | $160 |
| Surety or license bond | $9 |
Averages are what Insureon's customers among contractors as a group (it publishes no separate figures for septic) pay, from Insureon's cost page; most of its customers have fewer than five employees. Across all its small business customers, general liability runs $265 to $3,030 a year.
Claims septic companies plan for
- The truck crushes a line or a drainfield
- Sewage spills on a lawn
- A lid is left loose and someone steps in
- A contaminated well is blamed on your work
Ask your agent, in these words:
- Would my policy pay if the truck crushes a line or a drainfield?
- Would my policy pay if sewage spills on a lawn?
- Would my policy pay if a lid is left loose and someone steps in?
- Would my policy pay if a contaminated well is blamed on your work?
Name the work you sell
A policy covers the work you describe on the application. From the septic services list, name each of these and ask whether any is excluded: septic tank pumping; locate and dig lids; riser install; real estate inspection; camera inspection; baffle replacement; effluent filter clean or replace; line jetting.
The pump truck is the biggest asset, so commercial auto matters most. On the tools list, the items to list on the policy are sewer camera and locator; jetter; mini excavator; riser and lid stock, and from the starter kit, vacuum pump truck; hoses and fittings; probe rod and a metal detector or locator; shovels and a lid lifter; muck rake.
State rules in the license
These are the insurance and bond lines in each state's septic installer license rules, from our septic installer license guide, which reads each state board's own pages. 6 of the 34 states we cover set an insurance or bond rule in the license itself. Click a state for the full license steps.
| State | Insurance in the license rules | Bond |
|---|---|---|
| Idaho | Not set in the license rules we checked | A surety bond of $10,000 for a basic installer or $30,000 for a complex installer. |
| Kentucky | Proof of liability insurance when you apply, and again every year to the local health department. | Not set in the license rules we checked |
| Minnesota | Proof of general liability insurance, every year. | Proof of an SSTS surety bond. |
| Mississippi | General business liability insurance of $50,000 per occurrence and at least $100,000 aggregate. | Not set in the license rules we checked |
| Ohio | At least five hundred thousand dollars of general liability insurance. | Not set in the license rules we checked |
| Oregon | Not set in the license rules we checked | A $15,000 Sewage Disposal Service bond for an installer license, in the exact business name you registered. |
States not listed either leave insurance to cities and counties or set no rule in the license. Your city, your customers and your contracts can still ask for more.
Workers' comp and bonds
The SBA says every business with employees must carry workers' compensation, unemployment and disability insurance. Insureon's average for contractors as a group is $160 a month, priced per $100 of payroll. A bond protects the state or the customer, not you; Insureon puts its yearly cost at a share of the bond amount:
| Bond amount | Estimated yearly cost |
|---|---|
| $5,000 | $25 to $500 |
| $10,000 | $50 to $1,000 |
| $50,000 | $250 to $5,000 |
Certificates of insurance
Real estate agents and municipalities ask for a certificate. Keep a PDF on your phone so you can send it the day they ask.
Sources
- Insureon: Insurance cost for contractors as a group, checked October 9, 2026
- Insureon: General liability insurance cost, checked October 9, 2026
- Insureon: Workers' compensation insurance cost, checked October 9, 2026
- Insureon: Surety bond cost, checked October 9, 2026
- SBA: Get business insurance, checked October 9, 2026
- Koira: Septic Installer license requirements by state (each row lists its board sources), checked October 9, 2026
Last checked October 9, 2026. This page is general information, not legal or tax advice. Rules change and differ by state and city, so confirm with the agency named before you act.