Septic drain field replacement cost in South Carolina for 600 sq ft
| Typical total$12.07 per ft² of drain field | $7,239 |
|---|---|
| Range you should see in bidsthree bids on the same scope normally land inside this | $4,455 – $13,922 |
| Labor portion55% of the job — this is the part that moves by state | $3,982 |
| Material portion45% — bought at national prices | $3,258 |
| Septic Tank Servicers and Sewer Pipe Cleaners pay in South Carolinaabout $22/hr · BLS OEWS May 2025, SOC 47-4071 | $46,510/yr |
| U.S. mean for the same tradeSOC 47-4071 | $53,500/yr |
| Versus the national priceSouth Carolina trade pay runs −13.1% against the U.S. mean | −$561 |
Notes
- Where the number comes from. The national price for a septic drain field replacement is $13.00 per ft² of drain field — drain field replacement pricing published for 2026, $8–$25 per ft² of field. Labor is about 55% of that. Septic Tank Servicers and Sewer Pipe Cleaners in South Carolina average $46,510 a year against a U.S. mean of $53,500 — a factor of 0.869 — so the labor half is scaled by that and the material half is not.
- What is in the price: excavation, gravel or chamber media, perforated pipe, the distribution box, backfill, grading and labor.
- What is not: the tank itself, a new perc test, engineered plans, a pump chamber if the site needs one, and county permits. These are the lines that turn a $7,239 quote into a $9,049 invoice, so ask about each one before signing.
- Why state matters more than people expect. Materials ship at national prices; crews do not move. South Carolina sits below the national mean by 13.1%, which lands on 55% of the job and moves the total by $561.
- Use this as a bid check, not a quote. It prices an average job in an average condition. Difficult access, the state of what is being replaced, the season, and a crew booked out three months all move the real number, and none of them are in a per-unit average.
A 600 sq ft drain field in South Carolina
$7,239 is the typical figure, and bids on the same scope normally land between $4,455 and $13,922.
That is 600 ft² of drain field at $12.07 each.
Why this is not the national number
The same job priced at the U.S. average comes to $7,800 — this one is $561 less.
The reason is one number, and it is a published one. Septic Tank Servicers and Sewer Pipe Cleaners in South Carolina average $46,510 a year against a U.S. mean of $53,500, from the Bureau of Labor Statistics OEWS release for May 2025, SOC 47-4071. That is roughly $22 an hour of trade pay, a factor of 0.869, or −13.1% against the national mean.
Labor is about 55% of this job. Material is the other 45%, and a box of fittings costs the same in every state it is opened in. So only the labor half is scaled here, and the material half is left at national pricing.
That is the whole model, and it is deliberately simple enough to check: $3,982 of labor, $3,258 of material.
The area is not something you choose
Field size falls out of two numbers you do not control: the perc rate of the soil and the number of bedrooms the county counts. Slow soil needs more area for the same household, which is why an identical house costs twice as much to serve on clay as on sand. If you have not had a perc test, the figure above is a planning number and nothing more.
This trade has the narrowest state spread on the site
Septic tank servicers and sewer pipe cleaners average $46,510 in South Carolina against $53,500 nationally. Compare that to plumbers or electricians, where the top state pays nearly double the bottom one. Excavation is machine hours and gravel, and neither travels far from national pricing — so if two quotes in the same county differ by half, the difference is in the design, the soil or the haul distance, not in wages.
What sits outside this number
The tank, a new perc test, engineered plans where the county demands them, a pump chamber if the field sits uphill, and the permit itself. On a difficult site those can exceed the field. A mound system — what you get when the water table or bedrock is too close to the surface — is a different job again and routinely lands past $13,922.
How to use this against a real bid
Three quotes on identical scope should cluster. One well under $4,455 usually means something was left out of the scope rather than found cheaper — read the exclusions before reading the total. One well over $13,922 is either a harder job than average or a crew that does not want the work and priced accordingly.
The figure above prices an average job in average condition. Access, the age of what is being replaced, the season, and how booked the crew is all move it.
Nearby sizes
- Septic drain field replacement cost in Rhode Island for 600 sq ft
- Septic drain field replacement cost in South Dakota for 600 sq ft
- Septic drain field replacement cost in Pennsylvania for 600 sq ft
- Septic drain field replacement cost in Tennessee for 600 sq ft
- Septic drain field replacement cost in South Carolina for 1000 sq ft
Read more
- Septic Drain Field Cost by State — 1,000 ft², All 51This trade has the tightest state-to-state spread of any on the site — which is itself the useful finding when two local quotes differ by half.
- Adding a Bedroom to a House on Septic — What the County ChecksThe septic system does not care how many bedrooms the plan says. The county does, and it re-checks the tank and the field before it stamps anything.
- Septic Alarm Going Off — What to Check, in OrderThe alarm is not the emergency. It is the warning that buys you about a day, and what you do with that day decides the cost.
- Why a Perc Test Fails — And Which Failures Can Be Re-TestedMost people assume a failed perc test means clay. Often it means the wrong month, the wrong hole, or a water table nobody looked for.