Septic Services for Conroe & Montgomery County
Montgomery County has one of the largest concentrations of on-site septic systems in the Houston metro area. Tens of thousands of homes in unincorporated areas — from Lake Conroe waterfront properties to new subdivisions in Magnolia and Willis — rely on private septic systems rather than municipal sewer. When something goes wrong, or when Texas regulations require a maintenance visit, Pineywoods Septic connects you with licensed local contractors who know the clay-heavy soils and regulatory requirements of this county.
Not sure what service you need? Call and describe what you're seeing — contractors in our network can advise.
Call (936) 555-0142
Why Montgomery County Has More Septic Systems Than Most Texas Counties
Conroe and the surrounding Montgomery County area sit on the fringe of Houston's municipal sewer network. Large portions of the county — including communities around Lake Conroe, Cut and Shoot, Panorama Village, and rural Grangerland — have never been connected to city sewer lines and likely never will be. The result: an enormous installed base of residential septic systems that need regular maintenance under Texas TCEQ rules.
Montgomery County's soil adds another layer of complexity. The county sits on Houston-area clay — a shrink-swell Vertisol that expands dramatically when wet and contracts when dry. This movement stresses conventional drain fields and is a primary reason aerobic systems, which treat wastewater before it reaches the soil, are so common here. A contractor who knows Montgomery County's specific soil conditions — not an out-of-state call center — is who you want diagnosing a problem.
Areas We Serve
- Willis, TX
- Montgomery, TX
- Magnolia, TX
- Conroe (home)
- Cut and Shoot
- Panorama Village
- Grangerland
- Lake Conroe Area
What to Expect When You Call
Pineywoods Septic is a referral service. When you call, we route your request to licensed, insured septic contractors in our network who service Montgomery County. You get a local professional who knows the area, the soils, and the permit requirements — not a national brand that sub-contracts to whoever's available.
- Licensed contractors only — TCEQ and Texas Health & Safety Code compliance
- Insured for residential and commercial septic work
- Familiar with Montgomery County Environmental Health Services permit process
- Aerobic system specialists who can fulfill your TCEQ-required maintenance contract
- Free estimates on most services
Approximately 1 in 5 new homes built in Texas uses an on-site sewage facility (OSSF) rather than municipal sewer — roughly 20% of all new residential construction statewide (Texas Commission on Environmental Quality, OSSF General Information). In fast-growing, largely unincorporated counties like Montgomery County, the proportion is substantially higher.
Texas TCEQ issued 43,215 OSSF permits statewide in 2024 — the highest volume in recent years, driven by growth in counties like Montgomery County that remain largely outside municipal sewer networks (TCEQ, Texas Historical OSSF Permitting Data).
Texas aerobic treatment unit owners are required by law to have their system inspected at least once every 4 months — three times per year — by a TCEQ-licensed maintenance provider, under 30 TAC Chapter 285 and Texas Health and Safety Code §366.0515 (TCEQ OSSF Maintenance).
- Texas Aerobic Septic Maintenance Law — What TCEQ Chapter 285 Requires — plain-English explainer of the 4-month inspection rule, maintenance contracts, and what non-compliance costs
- Montgomery County TX Septic Systems — Scale, Soil & Regulatory Overview — why this county has such a large septic population, soil conditions, aerobic vs. conventional, Lake Conroe jurisdiction
Frequently Asked Questions
How often does a septic tank need to be pumped in Texas?
For a conventional (non-aerobic) septic system, most households need pumping every 3–5 years depending on tank size and occupancy. A 1,000-gallon tank serving a family of four typically needs service every 3–4 years. Aerobic systems in Texas require maintenance visits every 4 months under TCEQ rules — but aerobic maintenance is different from pumping and is handled by your licensed maintenance provider.
Do I need a maintenance contract for my aerobic system in Texas?
Yes. Under Texas Health & Safety Code Section 366.0515, all aerobic treatment unit owners must maintain an active maintenance contract with a TCEQ-licensed maintenance provider. Inspections must occur every 4 months (three times per year). Your provider submits a report to Montgomery County Environmental Health Services within 14 days of each visit. Operating without a valid contract is a violation.
How much does septic pumping cost in Conroe, TX?
Current data shows septic pumping in Conroe averages $370–$485, with most homeowners paying around $380 for a standard pump-out. Costs vary by tank size, access difficulty, and whether the visit includes a basic inspection. See our full septic cost guide for a breakdown by service type.
How do I get a septic permit in Montgomery County?
New septic permits are processed through Montgomery County Environmental Health Services at 501 N. Thompson, Suite 100, Conroe, TX 77301. The process requires a site evaluation and soil analysis by a Registered Site Evaluator, a system design by a Registered Sanitarian or Registered Professional Engineer, and a permit application with a $165 fee. New systems must have two tanks and may not be located in a floodplain. Licensed contractors in our network can guide you through the process.
What are the septic setback rules near Lake Conroe?
Texas requires septic systems to be at least 50 feet from lakes, rivers, ponds, and streams. The San Jacinto River Authority (SJRA) has additional jurisdiction over on-site sewage facilities near Lake Conroe's shoreline — specifically, within 2,075 feet of the lake. If you're buying or maintaining a waterfront property, confirm compliance with both Montgomery County Environmental Health Services and the SJRA before any septic work. See our Montgomery County septic overview for details on the SJRA zone.
What is Texas's aerobic septic maintenance law?
Under 30 TAC Chapter 285 and Texas Health and Safety Code §366.0515, all aerobic treatment unit (ATU) owners in Texas must maintain an active contract with a TCEQ-licensed maintenance provider and have their system inspected every 4 months — three times per year. The maintenance provider must submit a report to the permitting authority (Montgomery County Environmental Health Services for most county properties) within 14 days of each visit. Operating without a valid contract is a legal violation. See our full guide to Texas aerobic septic law.
Why are aerobic systems so common in Montgomery County?
Montgomery County sits on Houston-area Vertisol clay — a shrink-swell soil that expands when wet and contracts when dry. This movement damages conventional drain fields and often means a lot fails TCEQ's soil-suitability test for conventional systems. Aerobic treatment units produce higher-quality effluent that the clay soil can handle via spray irrigation, and many Montgomery County properties can only be permitted with an aerobic system. See our Montgomery County septic systems overview for more context.