Septic System Contractors — national directory, verified pros & buyer's guide

National directory

Septic System Contractors — National Directory (3,245 verified pros across 18 states)

What they do

Septic tank, drain field, and on-site wastewater system installation/service.

When to call

Pump-out on a 3-5 year cycle, or sooner with heavy use.
Backup, slow drains across the whole house, or surfacing in the drain field.
Replacement of tank, distribution box, or drain field.
Inspection during a real-estate transaction.
Conversion to advanced treatment (aerobic, mound, sand-filter) per local health code.

Typical cost range (national)

Cost-guide coverage for septic system contractors is still being aggregated; check the per-state pages for local pricing once your state launches.

License expectations

This trade is rarely state-licensed; rely on insurance, manufacturer authorization, and written warranty as the trust signals.

Top states by pro count

1.Ohio1,836
2.Rhode Island523
3.Washington404
4.California238
5.Delaware94
6.Arkansas64
7.New York28
8.Texas23
9.Alabama11
10.Oregon10

Emergency / 24-hour availability

14 septic system contractors across the ProFix national directory publish 24-hour emergency availability. Filter by state to find emergency pros near you.

Browse septic system contractors by state

Every state below has a live ProFix hub. Open it to drill into metros and cities, see license-linked pros, and — where the board check is wired — confirm active license status. Counts are verified septic system contractors from the national gold-tier roster.

These are the top 10 of 18 states with verified septic system contractors. Want every state? See the national coverage matrix for per-state pro counts and data depth, pick any state on the find-a-pro-near-you page, or describe your job to get matched from any state.

Deepest coverage example

Ohio worked example: Septic System Contractors in Ohio

Ohio is our launch state, so it's the one place where we can show the full depth — a ranked Ohio pro list, a public-permit leaderboard, state-licensing detail, and real Ohio cost guides. Treat everything in this section as an Ohio example of how ProFix verifies a trade, not as a national claim. We're building this same depth out state by state.

Hiring checks for Ohio septic system contractors

Septic-system installers and service providers register with each local health district under OAC 3701-29.
A contractor's home-county registration does not automatically cover work in a neighboring county; confirm the registration is current where the property sits.
New installs, replacements, alterations, and many O&M actions all route through the county health department for permit and inspection.
Camera inspection and pump-out documentation belong in writing — they are the only durable proof the system was actually serviced.

Top 10 verified septic system contractor contractors in Ohio

Our Ohio launch-state pros, sorted by ProFix Trust Score, which weighs verification tier, license evidence, permit-pull signals, and recency. Trust Score is not paid placement — read the methodology before hiring. For another state, use “Browse septic system contractors by state” above.

All Ohio septic system contractors How Trust Score works

Permit-pull leaderboard

ProFix ranks Ohio septic system contractors by the number of public building permits pulled in the last 365 days. This is a proof-of-work trust signal that no other directory exposes. Sourced from Cuyahoga, Franklin, and Hamilton County permit data — real public-record permits only, with coverage of additional counties in progress.

Statewide ranking: Top Ohio septic system contractors by permits pulled →

The statewide leaderboard aggregates Lucas, Cuyahoga, Franklin, and Hamilton county permit pulls into one ranked board. Per-county leaderboards live at /permits-leaderboard.

Buyer's guide

The ProFix Editorial Team published a long-form Ohio buyer's guide for this trade. It covers the full hiring process — license check, written scope, permit responsibility, payment schedule, change-order rules, warranty terms, and red flags.

How to choose an Ohio septic-system contractor (2026)A practical Ohio homeowner guide to hiring a septic-system contractor: ODH sewage-treatment rules, county Board of Health permits, soil testing, pump-outs, leach-field repairs, and inspections.1,504 words · Published 2026-05-23

What's licensed in Ohio for this trade

State-licensed in OhioCounty registration shown

Household sewage-treatment-system installers, service providers, and septage haulers register with each local health district under Ohio Administrative Code Chapter 3701-29. Confirm the registration is current in the county where the property sits, not just in the contractor's home county.

Verification tiers Look up an Ohio license Full methodology

Pricing in Ohio

ProFix has not yet published cost guides for septic system contractors. Job pricing for this trade varies widely by scope; collect three written quotes and compare line-by-line rather than by bottom total. The full ProFix cost-guide library covers the related trades that share scope.

Related ProFix research

Original ProFix research articles that name this trade in their keyword set. Citable under CC-BY-4.0 with attribution to ProFix Directory.

AI-agent endpoints

ProFix exposes machine-readable endpoints for AI agents, journalists, and partner integrations. These three feeds are scoped to this trade and are CC-BY-4.0 with 1-hour cache.

Frequently asked: Ohio septic system contractors

Are septic-system contractors registered in Ohio?

Yes. Household sewage-treatment-system installers, septage haulers, and service providers register with each local health district where they work, under Ohio Administrative Code Chapter 3701-29. Confirm the registration is current in the county where the property sits, not just the contractor's home county.

What septic work needs a county permit?

New installations, replacements, alterations, repairs, and many operation-and-maintenance actions route through the county health department for permit and inspection. Ask who files the permit, who schedules the inspection, and what documentation you receive before the system is covered or used again.

Why does a contractor address sometimes sit in a different county?

County registration lists often include contractors from nearby counties who are approved to serve the registering county. ProFix uses the county as service-registration provenance and still publishes the contractor's real business address exactly as the official source provides it.

How often should a septic system be pumped?

Every 3-5 years for a typical residential tank, with annual visual checks on baffles and effluent screens. After any major water event (basement flood, sewer backup) get a service-provider visit before assuming the system is intact.

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Primary metro

Compare ProFix-verified septic system contractors mapped to the strongest metro for this trade.

/metro/findlay

Statewide coverage

Coverage map and county-level pro counts across all 88 Ohio counties.

/coverage

Trust Score explainer

Long-form, homeowner-friendly walkthrough of the 0-100 ProFix Trust Score.

/trust-score

Septic System Contractors — national directory, verified pros, and buyer's guide