Skip to main content

Septic Repair in Myrtle Beach, SC

Horry County County · 6 providers · Avg. $500 - $5,000

About Septic Repair in Myrtle Beach

Septic repair covers a wide range of services aimed at restoring a malfunctioning septic system to proper operation. Common repairs include replacing damaged baffles or tees, patching tank cracks, clearing clogged distribution pipes, replacing failed pumps in pressurized systems, and repairing damaged lids or risers. More extensive repairs may involve rehabilitating a partially failed drain field by jetting the distribution pipes or adding bacterial treatments to restore soil absorption. The first step in any repair is a thorough diagnostic inspection — a technician will pump the tank, inspect all components, and may use a camera to evaluate pipe conditions. Many septic problems start small (a cracked baffle, a minor leak at a seam) but escalate quickly if ignored. Sewage surfacing in your yard, persistent odors, or recurring backups are all signs that professional diagnosis is needed immediately. Most repairs cost between $500 and $5,000, though drain field replacement can exceed $10,000. Addressing problems early almost always saves money compared to waiting for a complete system failure.

What Myrtle Beach Homeowners Should Know

Local Soil Conditions: Wando and Lakeland soil series are the primary upland soils in the Myrtle Beach area — excessively drained, deep Entisols with fine to medium sand throughout the profile. These soils offer excellent percolation (less than 3 minutes per inch in many locations) but minimal treatment capacity for nutrients and pathogens. Closer to tidal creeks, the Waccamaw and Paxville soils — poorly drained, organic-matter-rich Ultisols and Histosols — have water tables within inches of the surface and cannot support conventional drain fields.

Water Table: Upland Wando soils have water tables at 5–10 feet on barrier island ridges and inland terraces. However, proximity to the coast means tidal fluctuations influence groundwater elevation within 0.5–1 mile of tidal waters, and storm surge events can temporarily elevate water tables across wide areas. Low-lying pocosins and Carolina bay wetlands throughout Horry County maintain near-surface water tables year-round.

Climate Impact: Myrtle Beach has a humid subtropical climate with hot, humid summers and mild winters. Annual rainfall averages 52 inches with a summer peak from June through August driven by afternoon thunderstorms and tropical weather. Hurricane season (June–November) is a major concern — Horry County has experienced significant septic system damage from multiple landfalling storms including Floyd (1999), Matthew (2016), and Florence (2018), which caused prolonged flooding across the county's flat coastal plain.

Signs You Need Septic Repair

  • Sewage odors inside or outside the home that persist after pumping
  • Wet, soggy areas over the septic tank or drain field
  • Sewage backing up into the house through drains
  • Alarms sounding on aerobic or pump systems
  • Visible damage to tank lids, risers, or access covers
  • Toilets and drains that remain slow after pumping

The Septic Repair Process

  1. 1 Schedule a diagnostic inspection with a licensed septic professional
  2. 2 Pump the tank to allow visual inspection of all internal components
  3. 3 Camera-inspect distribution pipes if drain field issues are suspected
  4. 4 Identify the failed component and discuss repair options and costs
  5. 5 Perform the repair — replace parts, patch, clear blockages, or rehabilitate
  6. 6 Test the system to verify proper operation after repair

Septic Repair Providers in Myrtle Beach (6)

Frequently Asked Questions — Myrtle Beach

Why is Horry County the fastest-growing county in South Carolina and what does that mean for septic?
Horry County has been adding 20,000–30,000 residents annually, driven by in-migration of retirees and remote workers attracted to the Grand Strand's cost of living and climate. The rapid growth has pushed residential development into inland Horry County townships — Loris, Aynor, Conway, Green Sea — where municipal sewer does not reach. DHEC's Myrtle Beach regional office processes among the highest volumes of new residential septic permits in South Carolina, and the pace of approvals can mean 4–8 week wait times during peak construction season.
How do shellfish harvesting areas affect septic permitting near Myrtle Beach?
SC DHEC designates Shellfish Condemnation Areas around tidal waters where shellfish harvesting is restricted due to water quality concerns, including bacterial contamination from septic systems. Properties within or near these areas face additional DHEC review, larger setback requirements from tidal waters and tidal wetlands, and sometimes requirements for enhanced treatment systems. If you are purchasing coastal Horry County property within 200–500 feet of a tidal creek, ask your contractor to verify DHEC shellfish condemnation area mapping before designing a system.
What happened to Myrtle Beach-area septic systems during Hurricane Florence in 2018?
Hurricane Florence (2018) caused record flooding across Horry County, with some areas under 3–5 feet of floodwater for more than a week. Hundreds of septic systems were damaged — tanks floated, drain fields were saturated for extended periods, and floodwater contaminated with sewage entered many homes. DHEC issued emergency guidance and expedited repair permits in the aftermath. The experience underscores the importance of anchoring tanks properly in high water table areas and having systems inspected after any flood event.
Is the Myrtle Beach area growing fast enough to get municipal sewer service soon?
Myrtle Beach Area Water and Sewer Authority (MBAWSA) is actively expanding its service territory as the Grand Strand grows, but the pace of development far outstrips sewer extension capacity. Many inland Horry County communities — particularly in the Loris, Aynor, and Green Sea areas — are unlikely to receive sewer service within the next 10–20 years. If you are purchasing property in these areas, design your septic system for long-term use rather than expecting to connect to sewer soon.
How much does a septic system cost in Horry County?
Conventional gravity systems in compliant Wando sand locations cost $5,500–$9,500 in Horry County. Alternative systems required near shellfish areas, wetlands, or on lots with Paxville or other restricted soils typically run $11,000–$21,000. DHEC permit fees in Horry County are $200–$450 depending on system type. Horry County's competitive contractor market — driven by high construction volume — tends to keep installation prices slightly below the state average for comparable system types.

Other Services in Myrtle Beach

🌿Drain Field Repair🍳Grease Trap Pumping🔍Septic Inspection🏗️Septic System Installation🚽Septic Tank Pumping💧Well Drilling⚙️Well Pump Repair🔬Well Water Testing💦Well Water Treatment