Toilet Repair & Replacement in Cookeville, TN

Leaking shower valve, dripping tub faucet, slow bathroom drain, or a full bath remodel that needs new plumbing rough-in, Crest handles every bathroom plumbing job in Cookeville and Putnam County. One company for repair and installation, flat-rate pricing before we start, and a real person on the phone every time.

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Toilet problems we diagnose and fix

Every toilet problem has a specific cause — and usually a specific component that failed. We diagnose the exact cause before recommending any repair, carry common replacement parts on the truck, and handle most toilet repairs in a single visit.

Running toilet — won't stop after flushing

A toilet that runs continuously or intermittently after flushing is caused by one of three things: a worn flapper that isn’t sealing, a fill valve that isn’t shutting off properly, or a float set too high that keeps water running into the overflow tube. We identify which of the three it is — often all three need attention on older toilets — and repair or replace the specific component rather than a generic “toilet rebuild” approach.

Weak or incomplete flush

Toilet that requires multiple flushes, leaves waste behind, or has noticeably reduced flush power compared to before. Common causes include a worn flapper closing too quickly and cutting off the flush volume, mineral-clogged rim holes reducing water flow around the bowl, a partially blocked trap, or low water level in the tank from a misadjusted float. We diagnose the specific cause — different causes have different repairs.

Toilet leaking at the base

Water on the floor around the base of the toilet — particularly after flushing — almost always indicates a failed wax ring seal between the toilet and the drain flange. This repair requires pulling the toilet, replacing the wax ring (and the flange bolts if they are corroded), and resetting the toilet. While the toilet is pulled, we inspect the drain flange for damage — a cracked or low flange needs repair before the toilet is reset, otherwise the new wax ring will fail too.

Rocking or unstable toilet

If your toilet rocks side to side it is almost always caused by corroded or broken closet bolts at the base, a missing or deteriorated shim, or a damaged flange that can no longer hold the toilet in place. A rocking toilet will eventually compromise the wax ring seal and cause a base leak. We stabilize the toilet, replace closet bolts and shims as needed, and assess the flange condition while we have access.

Toilet not filling or filling very slowly

A toilet that takes several minutes to refill after flushing, or won’t fill at all, usually has a failed fill valve or a partially closed supply valve. The fill valve is an inexpensive component that wears out over time and is a straightforward replacement on most toilet models. We also check and replace the toilet supply line and shutoff valve if they show any signs of wear while the access is already available.

Condensation & tank sweating

If the toilet tank that is always wet on the outside — dripping onto the floor and causing damage to the flooring below — it is condensing ambient moisture because the incoming water is colder than the air. In Cookeville homes this is most common in humid summer months. Solutions range from insulating the tank interior with a liner kit to installing a tempering valve on the supply line. We assess the severity and advise the right approach for your specific situation.

Toilet supply line & shutoff valve

Leaking toilet supply line, shutoff valve that drips at the stem, or shutoff valve that won’t fully close. These are quick repairs — but a shutoff valve that won’t close is a liability in an emergency. We replace supply lines and shutoff valves with quality quarter-turn ball valves whenever we’re already servicing a toilet, catching the problem while access is easy rather than after a failure.

New toilet installation in Cookeville

Replacing an old toilet, upgrading to a water-efficient model, or installing a toilet in a new or renovated bathroom — Crest installs toilets throughout Cookeville and Putnam County with full wax ring seal, supply line, and shutoff valve included.

Standard toilet replacement

Replace an old, inefficient, or repeatedly failing toilet with a new unit — including full removal of the old toilet, flange inspection and repair if needed, new wax ring, new closet bolts, new supply line, and shutoff valve check or replacement. We haul away the old toilet. We install customer-supplied toilets or can source and supply a quality unit sized correctly for the existing rough-in.

Water-efficient toilet upgrade

Modern WaterSense-certified toilets use 1.28 gallons per flush — compared to 3.5–7 gallons for toilets manufactured before 1994. For Cookeville homes with pre-1994 toilets, an upgrade pays for itself in water savings relatively quickly. We advise on sizing for your rough-in measurement, install the new unit completely, and test performance before leaving.

New bathroom toilet installation

Installing a toilet in a new bathroom addition or a remodeled bathroom — including connection to the drain rough-in, new wax ring, supply line, and shutoff valve. For new bathroom additions the toilet rough-in must be set at the correct distance from the wall before flooring goes down. We specify the rough-in requirements early in the project so the framing and floor finish can be set correctly.

Flange repair & replacement

A cracked, broken, or low drain flange is a condition that causes wax ring failures and rocking toilets — and one that is often discovered when a toilet is pulled for any reason. We repair or replace damaged flanges before resetting the toilet, using repair flanges or full flange replacement depending on the damage. A new wax ring on a damaged flange will fail again quickly — we address the root cause.

Toilet Install + Repair in Cookeville

New toilet installs and fixing toilets throughout the Upper Cumberland + Middle Tennessee

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Flapper

Rubber seal that covers the flush valve opening at the bottom of the tank. Wears and hardens over time, eventually allowing water to seep past the seal continuously.

Symptom: toilet runs intermittently or constantly · ghost flushing

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Wax ring

Seals the toilet base to the drain flange. Fails from toilet rocking, flange movement, or simple age. Requires pulling the toilet to replace. Most critical seal in the toilet — a failed wax ring allows sewer gas into the home.

Symptom: water at base after flushing · sewer smell · rocking toilet

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Fill valve

Controls water refill after flushing. Wears out over time and either fails to shut off (causing running water) or fails to open (causing no refill). Usually a straightforward replacement.

Symptom: won’t stop running · fills very slowly · hissing sound

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Flush valve & seat

The opening at the bottom of the tank that allows water to rush into the bowl during a flush. The seat can become pitted or warped from mineral deposits, preventing the flapper from sealing properly even after a flapper replacement.

Symptom: running toilet even after new flapper · weak flush

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Float

Monitors water level in the tank and signals the fill valve to shut off. If set too high, water runs continuously into the overflow tube. Adjustment or replacement resolves most float issues.

Symptom: water running into overflow · constant running sound

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Drain flange

The floor-mounted fitting that the toilet seats onto via the wax ring. Cracks, breaks, or sits too low after floor tile is added. A damaged flange cannot hold a reliable wax ring seal regardless of how many times the ring is replaced.

Symptom: repeated wax ring failure · rocking toilet · base leak

What to expect for toilet repair or replacement in Cookeville

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You Call, We Answer

Call or use our online form. Choose a time that works for you.

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Honest Price Before We Start

A licensed tech arrives, diagnoses, and gives a flat price.

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We Fix it Right

Quality work, clean job site. You approve before we start.

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We Follow-Up

We check in after the job. Not satisfied? We come back.

Here’s What Our Happy Homeowners Think About Crest Plumbing

Toilet Repair FAQ — Cookeville, TN

How much does toilet repair cost in Cookeville, TN?

Crest uses flat-rate pricing — you know the full cost before we start. Simple repairs like a flapper or fill valve replacement cost significantly less than a wax ring replacement that requires pulling the toilet. Toilet replacement is priced to include removal, new hardware, and haul-away of the old unit. Call us and describe what the toilet is doing — we can often give you a general range before coming out.

My toilet runs constantly — what's wrong with it?

A constantly running toilet is caused by one of three things: a worn flapper that isn’t sealing the flush valve opening, a fill valve that isn’t shutting off properly when the tank is full, or a float set too high causing water to run continuously into the overflow tube. In older toilets, more than one of these may need attention at the same time. We identify which — and which combination — before replacing any parts.

There's water around the base of my toilet after flushing — is that the wax ring?

Almost certainly yes — water at the base that appears or worsens after flushing is the most reliable sign of a failed wax ring. This repair requires pulling the toilet, replacing the wax ring and closet bolts, and inspecting the drain flange for damage before resetting. A cracked or low flange must be repaired before the new wax ring is installed — otherwise the new seal will fail again in a relatively short time. We inspect the flange every time we pull a toilet.

Should I repair my old toilet or replace it?

For toilets under 15 years old with a single failed component, repair is almost always the right call. For pre-1994 toilets using 3.5–7 gallons per flush, replacement with a modern 1.28-gallon WaterSense model reduces water use significantly — and at Cookeville water rates, the savings add up meaningfully over a few years. We give you honest cost information for both options and our recommendation with clear reasoning before you decide.

Can you replace my toilet with one I already purchased?

Yes — we install customer-supplied toilets. When you call, tell us the rough-in measurement of your existing toilet — this is the distance from the finished wall to the center of the drain flange bolts, typically 12 inches in most Cookeville homes. The new toilet needs to match this rough-in. We bring all necessary hardware — wax ring, closet bolts, and supply line — and haul away the old unit as part of the installation.

How often do toilets need servicing?

Toilet flappers typically last 4–8 years depending on water quality — Cookeville’s moderately hard water can accelerate wear on rubber components. Fill valves last roughly 5–10 years. Supply lines and shutoff valves should be inspected every time a plumber is already in the bathroom for any reason. A proactive replacement of a stuck or corroded supply line and shutoff valve costs far less than emergency service after a failure.