Used to loosen and tighten supply lines, shutoff valves, and tank bolts. A good pipe wrench is the difference between a clean removal and a broken fitting.
Toilet Installation and Repair charleston SC You Can Count On
When your toilet won't stop running, won't flush, or is leaking onto the floor, our team handles toilet installation and repair charleston SC homeowners call us for every week.
Serving charleston and nearby areas.
How big is the toilet job?
Pull and reset
Toilet comes up for a wax ring, flange check, or stubborn clog.
- 1. Quick fix Flapper, fill valve, or supply line swap on an accessible toilet.
- 2. Pull and reset Toilet comes up for a wax ring, flange check, or stubborn clog.
- 3. Replace or repair line New toilet set, or drain line work planned in writing first.
Drag the needle to compareTouch and drag the needle
- 30Services from one local team
- 20Areas served around charleston
- Flange firstChecked before any toilet goes back down
- Flush testRepeated before we pack up
What Our Toilet Service Includes
Every toilet job is different, but here is what you can expect when you book us. We handle the diagnosis, the repair or replacement, and the cleanup.

Work order
Toilet Installation and Repair- Full Fixture Inspection: We check the flapper, fill valve, flush valve, supply line, shutoff valve, wax ring, and flange. If the toilet is clogged, we check the trapway and the drain line. You get a clear picture of what is wrong and what it takes to fix it.
- Repair or Replacement: For a repair, we replace the failed part with a quality component. For a replacement, we pull the old toilet, set a new wax ring, and install the new unit. We use Moen, Delta, Kohler, and American Standard parts and fixtures.
- Flange and Seal Work: A bad flange or wax ring is the most common cause of a toilet leaking at the base. We inspect the flange, repair or replace it if needed, and set a new wax ring every time we pull a toilet. That seal is what keeps water off your floor.
- Clog Removal: If the toilet is clogged, we start with a plunger and move to an auger or drain snake if needed. For repeat clogs, we may recommend a sewer camera inspection to check for root intrusion or buildup in the main line.
- Testing and Cleanup: We flush the toilet several times, check for leaks at the base and supply line, and make sure the tank fills and shuts off properly. Then we wipe down the fixture and haul away the old toilet if you want it gone.
What the first visit covers
First visit
We inspect the flapper, fill valve, supply line, wax ring, and flange, then explain what we found and what it takes to fix it.
Toilet work at your home
We handle toilet repairs and replacements in houses across Charleston County.
Running toilet
Flapper or fill valve swap, tested after.
Leak at the base
Wax ring and flange checked and reset.
Repeat clogs
Auger, then camera if it keeps happening.
New toilet install
Old unit pulled, new one set and tested.

Toilet service for Charleston businesses
We keep restrooms working for customers and tenants with minimal downtime.
Restaurants
Multiple stalls serviced in one visit.
Offices
Work scheduled around business hours.
Rental properties
Tenant coordination and photo documentation.
Toilet Installation and Repair charleston SC Done Right
A toilet that runs, leaks, or clogs costs you money and damages your home. Fixing it right the first time is cheaper than fixing the floor later. We do the job properly and test it before we leave.
Toilet installation and repair charleston SC covers everything from pulling a clogged toilet and resetting it on a fresh wax ring to swapping a 1990s builder-grade unit for a modern 1.28-gallon-per-flush model. We check the flange, the shutoff valve, the supply line, and the fill valve before we call any job finished. A toilet is a simple machine, but it sits on a wax ring, bolts to a flange, and ties into your drain line, so small mistakes turn into big water damage fast.
In charleston, we deal with cast iron drain lines in older peninsula homes, hard water scale that eats flappers, and humidity that keeps bathrooms damp year-round. If you search toilet installation near me charleston SC, you want a crew that knows how these houses are built. We do. From a running toilet repair charleston call at 7 a.m. to a planned upgrade, we show up with the right parts and the right tools.

- What it is
- Repair or replacement of a toilet fixture and its connections.
- When it helps
- Running, leaking, clogging, or an outdated toilet.
- What you get
- A working toilet, tested and cleaned up.
How Our Toilet Service Works
Every job follows the same five steps, whether it is a quick repair or a full replacement.
Tools and Methods We Use
Each method answers a different question. Together they leave very little to guess.
For clearing clogs in the toilet trapway and the branch drain line. We start with a plunger, then move to the auger if the clog is stubborn.
A camera on a flexible reel that lets us see inside the drain line. We use it when a toilet clogs repeatedly or when we suspect root intrusion or a broken pipe.
A high-pressure water jet that scours grease, scale, and roots from drain lines. We use it for heavy buildup that a snake cannot clear.
For cutting and connecting copper, PEX, and CPVC supply lines. If we need to replace a shutoff valve or reroute a supply line, these are the tools we reach for.
When to Call for Toilet Service
Your only toilet is clogged and you have guests coming for the weekend
Call us and we will get a technician out the same day if possible.
HomesYou are remodeling a bathroom and want a new comfort-height toilet
We remove the old toilet, check the flange and rough-in, and install the new model you picked or one we source for…
HomesYour rental property has a toilet that keeps running and tenants are complaining
We schedule a visit, diagnose the issue, and repair or replace the toilet.
BusinessesYou notice water around the base of the toilet after every flush
We pull the toilet, inspect the wax ring and flange, and replace whatever is failing.
Homes
How Toilet Service Works in Charleston
Charleston has a mix of housing stock that affects every toilet job. On the peninsula, you have 1920s homes with cast iron drain lines and original flanges that may be rusted or cracked.
Downtown Charleston
Many homes here have original cast iron drain lines and tight bathroom spaces. We know how to work in older homes without damaging tile or plaster.
West Ashley
Subdivisions built in the 1980s and 1990s are now seeing original toilets fail. We replace them with high-efficiency models that fit the existing rough-in.
Mount Pleasant
Newer construction often has PVC drain lines and PEX supply lines.

- Downtown Charleston
- West Ashley
- Mount Pleasant
- James Island
From problem to finished result.
Slide to compare the photo with an illustrative inspection view. It is generated from the photo, not a measurement.
PhotoRunning Toilet Fixed in One Visit
Before: A homeowner in West Ashley called about a toilet that ran all night. The flapper was warped and the fill valve was scaled up with hard water deposits.
After: We replaced the flapper and fill valve with Moen parts, tested the flush five times, and confirmed the tank shut off clean. The whole job took about 45 minutes. The next water bill dropped back to normal.
Cracked Flange Repaired in Downtown Home
Before: A 1930s home in Harleston Village had water pooling at the base of the toilet after every flush. The wax ring was failing and the cast iron flange was cracked in two places. The subfloor was starting to soften.
After: We pulled the toilet, repaired the flange with a stainless steel repair ring, replaced the wax ring, and reset the toilet. We also replaced the shutoff valve while we were in there. No more leaks, and the subfloor dried out.
Old Toilet Replaced with High-Efficiency Model
Before: A Mount Pleasant homeowner had a 1990s toilet that used 3.5 gallons per flush and clogged every week. The bowl was scratched and the flush was weak. They wanted something that worked and looked better.
After: We removed the old toilet, checked the flange and rough-in, and installed a new Kohler high-efficiency model that uses 1.28 gallons per flush. The new toilet cleared the bowl on the first flush and cut their water use by more than half.
Common Toilet Problems We Fix in Charleston
Most toilet calls fall into a few categories. Here are the problems we see most often in Charleston homes and how we handle them.
Toilet runs constantly and wastes water
A running toilet can waste 200 gallons a day, which shows up on your water bill and wears out the fill valve faster.
Toilet leaks at the base onto the floor
Water at the base of the toilet usually means a failed wax ring or a cracked flange.
Toilet clogs repeatedly
A toilet that clogs every week is not just annoying.
Toilet will not flush or flushes weak
A weak flush leaves waste in the bowl and can lead to odors and repeat clogs.
Why Charleston Homeowners Call Us First
A toilet that works right saves water, saves money, and saves your floors. Here is what you get when you book us.
Stop Wasting Water
A running toilet can waste 200 gallons a day, which shows up on your Charleston Water System bill fast.
Protect Your Floors
A failed wax ring or cracked tank leaks slowly and rots subfloor, tile, and baseboards.
Modern, Efficient Fixtures
New toilets use 1.28 gallons per flush or less and still clear the bowl.
Clean, Careful Work
We lay down floor protection, keep the work area dry, and haul the old toilet away.
What you get on the job
Clear records you can keep and share.
Findings summary
What we checked and what we found.
Parts record
What was replaced and with what.
Photo record
Images of the work before and after.
16 Years of Charleston Toilet Work
Charleston Harborline Plumbing has been fixing and installing toilets in Charleston County since 2010.

Flange condition
We check for cracks, rust, or a flange set too low, which tells us if the seal will hold.
Flush valve and rim jets
We watch the flush and check the rim jets for scale, which tells us if the bowl will clear.
Supply line and shutoff
We check for corrosion or drips at the valve, which tells us if it needs replacing while we are there.
Is your area covered?
Type your ZIP code or town to check. If you do not see yours, ask us.
charleston ZIP codes
- 29414
- 29424
- 29425
- 29455
- 29405
- 29407
- 29401
- 29403
- 29409
- 29492
- 29412
- 29402
- 29413
- 29417
Towns we serve.
Based in charleston and covering the places around it. Pick one for local details.
What Charleston Customers Say
Our upstairs toilet started leaking at the base and we did not notice until the ceiling below showed a stain. Charleston Harborline came out the next morning, pulled the toilet, and found a cracked flange. They repaired the flange, set a new wax ring, and had it back together in about two hours. No more leak, no more stain spreading.
I called about a running toilet that was driving up our water bill. The technician replaced the flapper and fill valve, tested it a few times, and showed me the old parts. Took maybe 40 minutes. Fair price and no upsell.
We manage several rental units on the peninsula, and toilets are a constant issue in these old buildings. Charleston Harborline has replaced three toilets for us this year and repaired several more. They know how to work with cast iron flanges and they always clean up. Good crew to have on speed dial.
Frequently Asked Questions
Short answers for the first few minutes. The team can cover the rest.
Describe what you are seeing and we will point you to the right next step.
(854) 226-6111If the flange is cracked or the shutoff valve needs replacing, that adds to the total. We give you a flat price before we start.
A running toilet is almost always a worn flapper, a bad fill valve, or a stuck float. Shut off the supply, drain the tank, and check the flapper first, since it is the cheapest part to replace. If the flapper looks fine, the fill valve is usually the culprit. We carry both on the truck and can fix it in one visit.
Yes. If you have a toilet overflowing, a broken supply line spraying water, or a backup that will not clear, call us at (854) 226-6111. We prioritize emergency toilet repair charleston SC calls and get a technician out as fast as we can. Shut off the supply valve behind the toilet while you wait.
We install Moen, Delta, Kohler, and American Standard toilets, along with other major brands you buy yourself. We can also source the toilet for you if you want a specific model. We check the rough-in measurement before ordering so the new toilet fits the existing flange and supply line.
Need Toilet Installation and Repair charleston SC Today?
(854) 226-6111Call Charleston Harborline Plumbing at (854) 226-6111 and we will get a technician to your door. We handle repairs, replacements, and emergency calls across Charleston County.
Contact Charleston Harborline Plumbing
Call us at (854) 226-6111 or email [email protected]. Our office is located at 123 Meeting Street, Charleston, SC 29401. We look forward to helping you.






