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Septic Tank & Drainfield repair in Orlando, FL

Updated 2026-08-06 · Sources verified 2026-07-20

Thinking about septic tank or drainfield work in the Orlando area? Here's what actually matters — permit rules for Orange County and the City of Orlando, plus the mistakes and code requirements that trip up homeowners, sourced from manufacturer manuals and the Florida Building Code.

Do you need a permit?

It depends on the exact scope. Orange County and the City of Orlando require permits for more than most homeowners expect — and the rules change. Check the county's official "Do I Need a Permit?" page or call your local building department before starting work.

Orange County and the City of Orlando run separate permit offices with separate portals — and your mailing address alone doesn't tell you which one covers your home. Check which permit office covers your address →

Key facts before you start

Florida septic rules moved to DEP and the old DOH chapter 64E-6 is repealed, but in Orange County you still apply at the county health department. FS 381.0065(2)(d) now defines "department" as the Department of Environmental Protection, so DEP writes the standards — yet DEP's own permitting FAQ says permits "are issued by the Environmental Public Health Program of the Florida Department of Health's local county health department" in the 50 counties it has not taken over, and Orange is on that list. Practical effect: read DEP's rules, file with DOH-Orange. Any page citing rule chapter 64E-6 is citing a repealed chapter, and the current setbacks live in Chapter 62-6 F.A.C.
You are allowed to work on your own system, but you are never allowed to skip the permit. FS 381.0065(4) opens "A person may not construct, repair, modify, abandon, or operate an onsite sewage treatment and disposal system without first obtaining a permit approved by the department," and then exempts you from CONTRACTOR REGISTRATION only: "A property owner who personally performs construction, maintenance, or repairs to a system serving his or her own owner-occupied single-family residence is exempt from registration requirements ... but is subject to all permitting requirements." Note the words owner-occupied and his or her own — the exemption does not extend to a rental you own, or to helping a neighbour.
Pumping the tank is not a permitted repair. A drainfield "rejuvenation" service is. Rule 62-6.002 defines a repair to include "any treatment method that is intended to improve the functioning of any part of the system, or to prolong or sustain the length of time the system functions," while excluding "removal of the contents of any tank or the installation of an approved outlet filter device, where the drainfield is not disturbed." So the $400 pump-out is just maintenance — but the air-injection, ozone or chemical "drainfield restoration" sold door to door in Central Florida is legally a repair, and performing one without a repair permit is a violation. That distinction is worth knowing before you agree to anything on your doorstep.
No Florida government can force a septic inspection when you sell. FS 381.0065(4)(v): "An inspection of a system may not be mandated by a governmental entity at the point of sale in a real estate transaction." This directly contradicts the widely repeated claim that Florida requires one. A buyer, lender or insurer can still demand an inspection as a contract term — that is a private requirement, not a legal one, and it is negotiable like any other term. The same paragraph adds that an existing permit "shall transfer with the title to the property," and that title "may not be encumbered at the time of transfer by new permit requirements."
Adding square footage does not trigger a septic upgrade. Adding a BEDROOM does. FS 381.0065(4)(z): an inspection, modification, replacement or upgrade "is not required for a remodeling addition or modification to a single-family home if a bedroom is not added. However, a remodeling addition or modification ... may not cover any part of the existing system or encroach upon a required setback or the unobstructed area." The same paragraph runs a clock in your favour — the health department has 7 business days to review your floor plan and site plan. Bedrooms are the trigger because system sizing is based on bedroom count, not on square feet.
The setback that surprises people is not a distance at all — it is the reserve area. Rule 62-6.005(4)(a) requires an unobstructed area that must "be at least 1.5 times as large as the drainfield absorption area required by rule. For example, if a 200 square feet drainfield is required, the total unobstructed area required, inclusive of the 200 square feet drainfield area, would be 300 square feet," and it must be contiguous to the drainfield and "in addition to the setbacks." That is why a shed, pool or slab that looks well clear of the drainfield still gets denied. The plain distances matter too: 75 feet from a private potable well under 62-6.005(1)(a), and under 62-6.005(2) no system "under buildings or within 5 feet of building foundations, including pilings for elevated structures, or within 5 feet of mobile home walls, swimming pool walls, or within 5 feet of property lines." Sidewalks, decks and patios are exempt from that 5-foot rule — but "drainfields must not be installed beneath such structures."
If you are in the Wekiwa or Rock Springs basin, a conventional system may not even be legal for a new install. Those are Outstanding Florida Springs, and FS 373.811(2) prohibits inside the adopted BMAP "new onsite sewage treatment and disposal systems where connection to a publicly owned or investor-owned sewerage system is available," adding that "on lots of 1 acre or less, if a publicly owned or investor-owned sewerage system is not available, only the installation of enhanced nutrient-reducing onsite sewage treatment and disposal systems or other wastewater treatment systems that achieve at least 65 percent nitrogen reduction are authorized." The adopted BMAP covers parts of Lake, Orange and Seminole counties including Apopka, Maitland, Ocoee, Orlando and Winter Garden. On a typical sub-acre lot in that area the required nitrogen-reducing system costs materially more than the conventional one every cost guide quotes — check your parcel against DEP's BMAP boundary before you budget.
What kills drainfields is what goes down the drain, and EPA names it. "Your septic system is not a trash can. An easy rule of thumb is not to flush anything besides human waste and toilet paper." Its never-flush list includes cooking grease or oil, "non-flushable wipes, such as baby wipes or other wet wipes," feminine hygiene products, dental floss, diapers, coffee grounds, cat litter, paper towels, pharmaceuticals, and household chemicals. Two more EPA items homeowners get wrong: "Eliminate or limit the use of a garbage disposal. This will significantly reduce the amount of fats, grease, and solids that enter your septic tank and could clog the drainfield," and do not park or drive on the drainfield. One honest caveat: the familiar "pump every 3 to 5 years" is EPA guidance, not a Florida legal requirement — no statute or rule in Chapter 62-6 imposes a pump-out interval on a conventional system.

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Frequently asked questions

Do I need a permit for septic tank or drainfield work in Orange County, FL?

It depends on the exact scope of the work — check Orange County's official "Do I Need a Permit?" page or call your local building department before starting.

When should I call a licensed professional instead of DIYing septic tank or drainfield work?

What kills drainfields is what goes down the drain, and EPA names it. "Your septic system is not a trash can.

Are there specific building-code requirements for septic tank or drainfield work?

Florida septic rules moved to DEP and the old DOH chapter 64E-6 is repealed, but in Orange County you still apply at the county health department.

Sources

https://www.flsenate.gov/Laws/Statutes/2025/381.0065
https://www.flsenate.gov/Laws/Statutes/2025/373.811
https://www.flrules.org/gateway/ruleNo.asp?id=62-6.005
https://www.flrules.org/gateway/ruleNo.asp?id=62-6.002
https://floridadep.gov/water/onsite-sewage/content/onsite-sewage-faq-permitting
https://floridadep.gov/sites/default/files/Wekiwa%20and%20Rock%20Springs%20Final%202018.pdf
https://www.epa.gov/septic/how-care-your-septic-system

This guide is general informational content, not professional or legal advice. Codes and county rules change — confirm permit requirements with your local building department, and use a licensed professional for electrical, gas, structural, or main-line plumbing work.

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