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Duncan, SC Plumber Help When the County Line Decides Who Permits the Work
Duncan is in Spartanburg County, while Greer straddles two counties, so the office that governs a plumbing job depends on which side of the line your address falls. Greer SC Plumbing Experts helps you work out which rules apply, then fixes the plumbing.

Start with the county: Greer and Duncan are not governed alike
The Greer area is split between Greenville County and Spartanburg County, and Duncan is on the Spartanburg side. A rule you read for Greer's city limits or for Greenville County may not apply at a Duncan address.
Spartanburg County's residential permitting office is at 366 N. Church Street in Spartanburg, open weekdays from 8 AM to 5 PM. We did not find a published statement of whether the Town of Duncan or the county handles a plumbing permit at a given address, so call before work starts.
| Question | Who to ask | Contact |
|---|---|---|
| Does my job need a permit? | Town of Duncan Town Hall, then Spartanburg County | Town Hall (864) 439-2664 |
| Where do county applications go? | Spartanburg County residential permitting | 366 N. Church St., Spartanburg 29303 |
| Who inspects the plumbing? | The county needs the plumbing permit number to book an inspection | Ask when you apply |
| Who holds the plumber's credentials? | SC Residential Builders Commission | Ask the plumber for license details |
Source: Spartanburg County residential construction permitting, Town of Duncan: zoning and planning
Spartanburg County's page says plumbing inspections require the plumbing permit number, so make sure your plumber has one before the walls are closed.
Tell us your Duncan address
Give us the street address and what is happening. We will say what to check and which office to ask about permits.
Water heaters that fail in the garage
Many Duncan homes keep the heater in a garage or closet. A puddle on the garage floor usually means the tank has failed. A drip from the pipe at the side is often the relief valve, which can be a repair.

- Shut the cold water valve above the heater.
- Turn off its power at the breaker, or the gas at the control.
- Note where the water comes from and take a photo.
- Call, and say whether the unit is gas or electric and how old it is.
The decision between repair and replacement is covered on fixing a leaking tank and the permit questions on installing a replacement heater.
Washer hoses, vanity lines and other leaks you can stop
Most calls from a house that is not leaking badly start with a hose. A washing machine hose that bulges, or a braided line under a vanity that has rusted at the nut, costs little to replace and a lot to ignore.

- Look behind the washer for bulges, rust or drips at the valves.
- Check under every sink with a dry paper towel.
- Replace hoses before they fail, not after.
- Know where the main shutoff is.
If the meter keeps moving with everything off, the meter test for a leak page explains it.
Licensing: what to ask before you hire
South Carolina requires a license for residential plumbing work over five hundred dollars. Ask for the plumber's license details and for the plan for the permit before the work begins.
Duncan plumbing problems that can wait and ones that cannot
| Problem | Reasonable to wait? | What to do now |
|---|---|---|
| Dripping faucet | Yes, for days | Close the fixture shutoff if the drip is steady |
| Toilet runs after flushing | Yes, briefly | Close the toilet shutoff if it will not stop |
| Active leak from a pipe | No | Close the main valve and call |
| Sewage at a drain | No | Stop all water use and call |
| No hot water | Soon | Check the breaker or pilot, then call |
A plumber who is told the whole picture can sort the call into one of these rows. That is why the first conversation covers what you see, where, and for how long.
How to read a Duncan plumbing quote
A useful quote says what is being fixed, why, and what it covers. A quote that lists only a total leaves you unable to compare it with anything.
- The work in plain words, not just a part name
- Who is pulling the permit and from which office
- What happens to the old part and any mess
- How the repair will be tested
- What is covered if the same problem comes back
If the quote includes a heater, ask about sizing and venting, and look at tankless options only if your gas and vent support one.
Gas or electric: the first safe step with a failed heater
On an electric heater, switch off the breaker before anyone opens a panel. On a gas heater, a gas smell is not a plumbing problem to solve at the tank. Leave the house and call 911 or your gas utility from outside.
- Gas: confirm there is no gas smell before touching the heater.
- Electric: use the breaker, not the switch on the wall, to cut power.
- Either type: close the cold-water valve above the tank to stop a leak.
- Either type: do not use a heater that is leaking and still powered.
Once the energy source is off and the water is stopped, the plumbing questions are the ordinary ones: where the water came from and whether the tank is sound.
Where Duncan sits on the map
Duncan is east of Greer in Spartanburg County. Use the map to see where your address sits, then call with the full street address.
Duncan plumbing questions
Which county is Duncan in?
Duncan is in Spartanburg County. Greer spans Greenville and Spartanburg counties, so check the county for your address before assuming a Greer rule applies.
Who issues plumbing permits in Duncan?
We did not find a published statement. Call Duncan Town Hall at (864) 439-2664 and Spartanburg County's residential permitting office, which is at 366 N. Church Street in Spartanburg.
What does the county need for a plumbing inspection?
Spartanburg County's residential permitting page says plumbing inspections require the plumbing permit number, so your plumber should have it before work is closed up.
What should I do about a leaking water heater?
Shut the cold water valve and the power or gas, photograph the leak and call. A leak from the tank body means replacement, while a leak from a valve or fitting can be repaired.