Repair

Septic and aerobic system repair

What usually breaks, what repairs cost, and when a permit is needed.

Common problems

Air pump (aerator) failure, often after the alarm goes off
Float switches or timers in the control panel
Clogged or broken spray heads and lines
Empty chlorinator, causing smell
Clogs and backups into the house

Published cost ranges

Angi reports septic system repairs from $200 to $6,000, with major drain-field work $15,000 or more. Clog removal averages about $1,700 and pump replacement $800–$1,400.^1,2 Get a written quote before work starts.

Do repairs need a permit?

Comal County says state and county law require a permit before constructing or making non-emergency repairs to a septic system. Emergency repairs to stop an immediate health hazard may be made if they don't change the system's design.³ Check with your own permitting office.

Questions

My aerobic alarm is on. What should I do?

Cut water use, check that the system has power, and call your maintenance provider. Many alarms mean a high water level or a failed air pump.

Is a sewage smell dangerous?

Sewage can carry germs. Keep kids and pets away from wet areas and call for service.

📞 Call free (000) 000-0000

Honest disclosure: SATX Septic Help is a free information site and referral line for San Antonio-area homeowners with septic and aerobic systems. We are not a septic company, do not perform any work and do not endorse any company. Calls may be routed to and recorded by an independent provider. Always check that a company holds the right TCEQ license (installer, maintenance provider or other) and insurance before hiring.

Sources

More guides

Aerobic Septic Service · Septic Pumping · Inspection for Home Buyers · Maintenance Contracts Explained · Bexar, Comal & Kendall Rules · Septic Cost Guide & Calculator