Myrtle Beach metro · South Carolina

Septic System Installation cost in Myrtle Beach, SC

Myrtle Beach homeowners typically pay $5,750 – $19,200 for septic system installation. Local labor and materials price 4% below the national average.

Myrtle Beach average

$12,500

Typical low

$5,750

Typical high

$19,200

Per system

$5,750 – $19,200

Sample ZIP

What drives Myrtle Beach pricing

Local labor

Licensed trade labor in Myrtle Beach runs about 96% of the national average, and the best crews book out fastest in spring and early summer.

Permits & code

Most Myrtle Beach, SC projects that change structure, electrical, plumbing or mechanical systems need a permit from the local building department; cosmetic work usually does not.

Climate & conditions

South Carolina weather drives material choices here, so ask contractors what they install most often in Myrtle Beach and why.

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3 systems

Estimated project cost

$22,088 $30,210

Most homeowners pay around $26,149

Compare quality / material level

Cost by material in Myrtle Beach

Installed Myrtle Beach pricing per system.

OptionInstalled cost
Conventional gravity system$7,750 – $10,600
Chamber system$10,600 – $14,000
Pressure-dose / mound system$14,000 – $18,100
Aerobic treatment unit$18,100 – $25,000

Where the money goes in Myrtle Beach

A typical $12,500 Myrtle Beach project, broken down by line item.

  • Labor0.45% · $56
  • Materials0.38% · $48
  • Permits & inspections0.05% · $6
  • Overhead & profit0.12% · $15

Common add-ons

Extras that show up on Myrtle Beach quotes but rarely in the headline price.

Perc test and design

$480 – $2,400

Tank pumping and abandonment

$385 – $1,150

Extra drain field length

$1,450 – $5,750

Effluent filter and alarm

$145 – $575

Ways to save in Myrtle Beach

  • Schedule the perc test early — a failed test changes the whole design.
  • Combine excavation with other sitework already planned.
  • Collect three written bids on an identical scope — spreads of 20–40% are normal.
  • Book in the off-season and stay flexible on the start date to save 5–15%.
  • Bundle nearby work into one mobilization so you only pay setup and travel once.
  • Ask what the contractor would change to cut 10% without hurting durability.

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