--- title: "Drain field repair and replacement cost in Texas" canonical_url: https://texasseptichelp.com/drain-field-repair-replacement-cost-texas markdown_url: https://texasseptichelp.com/drain-field-repair-replacement-cost-texas.md summary: "What published cost guides say it costs to repair or replace a septic drain field in Texas, how those figures were gathered, cheaper problems to rule out first, and when the work needs a permit." jurisdiction: "Texas, United States (statewide)." audience: "Texas homeowners and buyers whose drain field may be failing, or who are comparing repair bids." content_last_changed: 2026-10-07 last_verified: 2026-10-07 language: en-US site: "Texas Septic Help" --- # Drain field repair and replacement cost in Texas Published 2026 guides put drain field repair at about $1,000 to $5,000 and full replacement at about $5,000 to $20,000 in Texas. Replacing or repairing a drain field needs a permit from your local permitting authority. _(Sources: [1] Nearby Septic; [2] Texas Septic Guide; [5] Texas Commission on Environmental Quality (TCEQ).)_ Last checked 2026-10-07. Sources are listed at the end. Web page: https://texasseptichelp.com/drain-field-repair-replacement-cost-texas > **Note:** These are estimates from commercial cost guides, not quotes. Get written, itemized bids for the same approved design. ## How these figures were gathered Anchor: https://texasseptichelp.com/drain-field-repair-replacement-cost-texas#how-these-figures-were-gathered - **Where the numbers come from:** Every price here comes from a published cost guide and is credited to it. No independent survey of Texas drain field prices turned up. All three publishers also offer to put readers in touch with contractors. Nearby Septic says its figures come from two Texas companies' published prices plus national guides; Texas Septic Guide cites national data plus its own provider surveys; HomeGuide is a national guide. The ranges sit side by side instead of being averaged. All pages were read on Oct 7, 2026. - _Sources: [1] Nearby Septic; [3] Texas Septic Guide; [4] HomeGuide. Link: https://texasseptichelp.com/drain-field-repair-replacement-cost-texas#drain-field-cost-method_ - **One guide disagrees with itself:** Texas Septic Guide gives $3,000 to $6,000 for a Texas drain field on its installation page but $5,000 to $20,000 for a drain field replacement on its maintenance cost page. The installation page lists the field as one part of a full system. - _Sources: [3] Texas Septic Guide; [2] Texas Septic Guide. Link: https://texasseptichelp.com/drain-field-repair-replacement-cost-texas#tsg-conflict_ ## Published estimates Anchor: https://texasseptichelp.com/drain-field-repair-replacement-cost-texas#cost-estimates **Published drain field estimates** (anchor: https://texasseptichelp.com/drain-field-repair-replacement-cost-texas#drain-field-cost-table) | Work | Nearby Septic, citing Texas companies (2026) | Texas Septic Guide (2026) | HomeGuide, national (Dec 2025) | Source | | --- | --- | --- | --- | --- | | Repair of one section or line | $1,000 to $5,000 | No figure | $1,000 to $5,000 (repair or rejuvenation) | [1], [4] | | Broken solid line between tank and field | $1,000 to $4,000 | No figure | No figure | [1] | | Full replacement, conventional | $5,000 to $20,000 | $5,000 to $20,000 (replacement); $3,000 to $6,000 (field in a full installation) | $3,000 to $15,000 | [1], [2], [3], [4] | | Switching to an aerobic system with a spray or other field | $12,000 to $25,000 | No figure | No figure | [1] | | Replacing leach lines, per foot | $20 to $45 (citing HomeGuide) | No figure | $20 to $45 | [1], [4] | _Sources: [1] Nearby Septic; [4] HomeGuide; [2] Texas Septic Guide; [3] Texas Septic Guide._ - **Full replacement:** Two Texas guides, Nearby Septic and Texas Septic Guide, both say $5,000 to $20,000. HomeGuide's national range is $3,000 to $15,000. - _Sources: [1] Nearby Septic; [2] Texas Septic Guide; [4] HomeGuide. Link: https://texasseptichelp.com/drain-field-repair-replacement-cost-texas#replacement-estimates_ - **Comparing bids:** TCEQ suggests getting at least three estimates and asking any installer whose price is far from the others what it added or left out. - _Sources: [5] Texas Commission on Environmental Quality (TCEQ). Link: https://texasseptichelp.com/drain-field-repair-replacement-cost-texas#compare-bids_ ## Rule out cheaper problems first Anchor: https://texasseptichelp.com/drain-field-repair-replacement-cost-texas#check-first - **Problems that look like a failed field:** Nearby Septic notes that a clogged effluent filter, a dead pump or a broken baffle can cause the same backups and soggy spots as a failing field. - _Sources: [1] Nearby Septic. Link: https://texasseptichelp.com/drain-field-repair-replacement-cost-texas#mimics_ - **Water use and runoff:** TCEQ lists using more water than the system was designed for as a common cause of failure. AgriLife suggests routing runoff from driveways and roofs around the field and keeping grass on it. - _Sources: [5] Texas Commission on Environmental Quality (TCEQ); [6] Texas A&M AgriLife Extension. Link: https://texasseptichelp.com/drain-field-repair-replacement-cost-texas#water-and-runoff_ - See also: [Common causes](https://texasseptichelp.com/septic-system-failure-warning-signs#causes) ## Permits for drain field work Anchor: https://texasseptichelp.com/drain-field-repair-replacement-cost-texas#drain-field-permit - **A permit is needed:** TCEQ says repairing or replacing a drain field needs a permit, whatever the system's age, and any work on the disposal area means the system has to meet current standards. Repairing a solid line is one of the few emergency repairs that can start without a permit, if it's needed to stop an immediate health hazard and is reported in writing to the permitting authority within 72 hours. - _Sources: [5] Texas Commission on Environmental Quality (TCEQ); [7] Texas Administrative Code, via Cornell Legal Information Institute. Link: https://texasseptichelp.com/drain-field-repair-replacement-cost-texas#drain-field-permit-rule_ - See also: [Exceptions: older systems and large tracts](https://texasseptichelp.com/texas-septic-permit-rules-tceq#exceptions) - **Site evaluation:** A permit application needs a site evaluation by a licensed Site Evaluator or professional engineer. HomeGuide lists a percolation test at $600 to $2,000 nationally. TCEQ notes that before Feb 4, 1997, most systems were designed from percolation tests; a site evaluation now includes a soil analysis of the disposal area. - _Sources: [8] Texas Commission on Environmental Quality (TCEQ); [4] HomeGuide; [5] Texas Commission on Environmental Quality (TCEQ). Link: https://texasseptichelp.com/drain-field-repair-replacement-cost-texas#site-evaluation_ ## About this page What published cost guides say it costs to repair or replace a septic drain field in Texas, how those figures were gathered, cheaper problems to rule out first, and when the work needs a permit. - **Key facts:** [Where the numbers come from](https://texasseptichelp.com/drain-field-repair-replacement-cost-texas#drain-field-cost-method); [Full replacement](https://texasseptichelp.com/drain-field-repair-replacement-cost-texas#replacement-estimates); [A permit is needed](https://texasseptichelp.com/drain-field-repair-replacement-cost-texas#drain-field-permit-rule) - **Covers:** Published estimates for drain field repair and replacement; How those figures were gathered; Problems to rule out before replacing a field; Permit rules for drain field work - **Not covered:** Prices from any specific company, or a quote; Aerobic spray field repairs - **Jurisdiction:** Texas, United States (statewide). - **Audience:** Texas homeowners and buyers whose drain field may be failing, or who are comparing repair bids. - **Provides:** A table of published estimates, each linked to its source; Permit rules for drain field repair and replacement - **Content last changed:** 2026-10-07 - **Last verified:** 2026-10-07 - **Primary sources:** - Texas Commission on Environmental Quality (TCEQ): [Advice for an Owner of an On-Site Sewage Facility (Septic System)](https://www.tceq.texas.gov/permitting/ossf/ossfadvice.html) [5]; [Getting a Permit for an OSSF - Such as a Septic System](https://www.tceq.texas.gov/permitting/ossf/ossfpermits.html) [8]; [OARS: Find a Local Contact (septic permitting authority by county)](https://www.tceq.texas.gov/permitting/ossf/aa_search.html) [9] - Texas A&M AgriLife Extension: [Onsite wastewater treatment systems: Understanding and maintaining your septic system (L-5491)](https://ossf.tamu.edu/files/2023/01/L-5491-9.08-Understanding-and-maintaining-your-septic-system.pdf) [6] - Texas Administrative Code, via Cornell Legal Information Institute: [30 Tex. Admin. Code § 285.35, Emergency Repairs](https://www.law.cornell.edu/regulations/texas/30-Tex-Admin-Code-SS-285-35) [7] - Price estimates come from commercial cost guides, listed under Sources. - **Web page:** https://texasseptichelp.com/drain-field-repair-replacement-cost-texas ## Contacts - **Your local septic permitting authority**. Issues permits for drain field repair and replacement. Find it by county with TCEQ's OARS lookup. Website: https://www.tceq.texas.gov/permitting/ossf/aa_search.html. Source: [9] Texas Commission on Environmental Quality (TCEQ). ## Related pages - [Septic system warning signs and what to do in Texas](https://texasseptichelp.com/septic-system-failure-warning-signs) (Markdown: https://texasseptichelp.com/septic-system-failure-warning-signs.md). Warning signs and common causes. - [Texas septic permits and rules: who regulates what](https://texasseptichelp.com/texas-septic-permit-rules-tceq) (Markdown: https://texasseptichelp.com/texas-septic-permit-rules-tceq.md). Permit rules and emergency repairs. - [Aerobic vs conventional septic systems in Texas](https://texasseptichelp.com/aerobic-vs-conventional-septic-texas) (Markdown: https://texasseptichelp.com/aerobic-vs-conventional-septic-texas.md). When a site needs an aerobic system. - [Home: Texas Septic Help](https://texasseptichelp.com/) (Markdown: https://texasseptichelp.com/index.md). All guides on this site. ## Sources - [1] [Drain Field Repair Cost in Texas (2026)](https://www.nearbyseptic.com/costs/drain-field-repair-texas/). Nearby Septic. Commercial cost guide. Supports: Texas repair, solid line, replacement and aerobic conversion ranges; its method; problems that mimic a failed field. Accessed: 2026-10-07. - [2] [Septic System Maintenance Cost in Texas [2026 Data]](https://www.texassepticguide.com/learn/septic-maintenance-cost-texas). Texas Septic Guide. Commercial cost guide. Supports: Drain field replacement $5,000 to $20,000. Publisher's date: Page says last verified 2026-03-09. Accessed: 2026-10-07. - [3] [How Much Does a Septic System Cost in Texas? [2026 Data]](https://texassepticguide.com/learn/septic-installation-cost-texas). Texas Septic Guide. Commercial cost guide. Supports: Texas drain field $3,000 to $6,000 within an installation; its stated sources. Publisher's date: Page says last verified 2026-03-09. Accessed: 2026-10-07. - [4] [How much does a leach or drain field replacement cost?](https://homeguide.com/costs/drain-leach-field-replacement-cost) HomeGuide. Commercial cost guide. Supports: National replacement, repair, leach line and percolation test ranges (Dec 2025). Publisher's date: Dated 2025-12-22. Accessed: 2026-10-07. - [5] [Advice for an Owner of an On-Site Sewage Facility (Septic System)](https://www.tceq.texas.gov/permitting/ossf/ossfadvice.html). Texas Commission on Environmental Quality (TCEQ). Primary source. Supports: Permit required for drain field work; current standards; three estimates; causes of failure; pre-1997 percolation tests. Publisher's date: Page last modified 2026-03-03. Accessed: 2026-10-07. - [6] [Onsite wastewater treatment systems: Understanding and maintaining your septic system (L-5491)](https://ossf.tamu.edu/files/2023/01/L-5491-9.08-Understanding-and-maintaining-your-septic-system.pdf). Texas A&M AgriLife Extension. Primary source. Supports: Route runoff around the field; grass cover (2008). Publisher's date: Fact sheet dated September 2008. Accessed: 2026-10-07. - [7] [30 Tex. Admin. Code § 285.35, Emergency Repairs](https://www.law.cornell.edu/regulations/texas/30-Tex-Admin-Code-SS-285-35). Texas Administrative Code, via Cornell Legal Information Institute. Primary source. Supports: Solid line repair as an emergency repair; 72-hour written notice. Accessed: 2026-10-07. - [8] [Getting a Permit for an OSSF - Such as a Septic System](https://www.tceq.texas.gov/permitting/ossf/ossfpermits.html). Texas Commission on Environmental Quality (TCEQ). Primary source. Supports: Site evaluation by a licensed Site Evaluator or engineer. Publisher's date: Page last modified 2026-08-10. Accessed: 2026-10-07. - [9] [OARS: Find a Local Contact (septic permitting authority by county)](https://www.tceq.texas.gov/permitting/ossf/aa_search.html). Texas Commission on Environmental Quality (TCEQ). Primary source. Supports: Finding the local permitting authority. Accessed: 2026-10-07. ## Page history - 2026-10-07: First version of this page. --- Texas Septic Help. No ads, paid listings or affiliate links, and no company recommendations. Not legal advice.