Toilet Repair & Replacement in Warren, MI | Bison Plumbing — Macomb & Oakland County
Same-Day Service — Repair or Replace — Honest Diagnosis — LARA Licensed

Toilet Repair
& Replacement

Running toilet, won’t flush, leaking base, rocking, or broken handle — these are the five most common toilet calls Bison receives across Macomb and Oakland County, and most are same-day repairs. When repair isn’t the right answer, replacement with a water-efficient 1.28 GPF model saves Oakland County metered water customers meaningfully on their monthly bill. Warren, MI since 1998.

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Same-DayMost toilet repairs completed same day
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$95–$350Repair — $250–$600 replacement
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1.28 GPFWater-efficient replacement options
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LARA LicensedMichigan licensed plumbers
3,000+ Reviews4.9-star average
Quick Answer

Bison Plumbing repairs and replaces toilets same-day across Macomb and Oakland County. Common repairs: running toilet (flapper or fill valve), leaking base (wax ring), rocking toilet (floor flange), won’t flush (mechanical or clog), broken handle. Repair: $95–$350. Full replacement: $250–$600. When the toilet is old enough that repair cost approaches replacement cost — or it’s a pre-1994 high-flush model — replacement with a modern 1.28 GPF unit saves water cost monthly on Macomb County metered billing. Part of Bison’s Plumbing Repairs services.

A bathroom mid-job on a Bison Plumbing call: the existing toilet beside a new shower pan with waterproofing membrane, old floral wallpaper and tile behind
A Bison bathroom job in progressThe toilet is the fixture homeowners notice first — and the one most often put back into service the same day. Everything a toilet depends on, from the flange to the drain, lives in the floor beneath it.
200Gallons per day wasted by a running toilet — $20–$40/month at Macomb County rates
Same DayMost toilet repairs and replacements completed same day as call
1.28GPF — modern WaterSense toilet vs. 3.5–7 GPF in pre-1994 models
$95Starting repair cost — most common repairs under $200

The Five Most Common Toilet Problems — Causes and Fixes

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Wastes Water Daily

Running Toilet — Won’t Stop Filling

$95–$200

The most common toilet call — and the most expensive to ignore. A toilet that runs continuously after flushing is wasting 200–400 gallons per day. Two components cause this: the flapper or the fill valve. The flapper is a rubber seal at the bottom of the tank that opens during flushing and should reseat completely after. When it deteriorates, warps, or develops mineral scale buildup from hard water, it doesn’t seal — water slowly leaks from tank to bowl, triggering the fill valve to run continuously. A fill valve failure causes the same audible symptom through a different mechanism: the valve doesn’t shut off at the correct fill level and water runs to the overflow tube.

Macomb County’s hard water accelerates flapper deterioration — mineral deposits on the flapper seat prevent a clean seal. Flappers in this water chemistry environment typically need replacement every 3–5 years rather than the national average of 5–7 years.

Fix: Flapper replacement $95–$150. Fill valve replacement $100–$200. Both components replaced together recommended if the toilet is older than 10 years — $150–$220 combined.
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Act Immediately

Water Leaking from the Base

$150–$280

Water pooling at the base of a toilet — especially during or immediately after flushing — almost always indicates a failed wax ring. The wax ring is the seal between the toilet’s horn (the outlet at the bottom of the toilet) and the drain flange set into the floor. It creates a watertight connection that directs all waste directly into the drain without any leakage at the floor level.

When the wax ring fails — from toilet rocking that breaks the seal, or from age deterioration in older homes — flushed water bypasses the drain and pools at the floor. This is not just a cosmetic problem: it allows sewer gas to enter the home through the failed seal, and the repeated water exposure causes subfloor damage that compounds quickly. Vinyl, tile, and hardwood flooring above a failed wax ring deteriorates within weeks of continuous exposure.

Fix: Toilet removed, wax ring and floor bolts replaced, toilet reinstalled and verified leak-free. $150–$280. If the floor flange is damaged or has shifted, flange repair adds $100–$200 to the scope.
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Address Promptly

Rocking Toilet — Movement at the Base

$150–$320

A toilet that rocks or shifts when sat on has a floor flange or mounting bolt problem. The toilet is anchored to the floor flange — a ring set flush with or just above the finished floor surface — by two closet bolts (also called johnny bolts). When the bolts loosen, corrode, or the flange breaks, the toilet rocks on the wax ring seal below it. This rocking progressively breaks the wax ring seal, leading directly to the leaking base scenario above if not addressed.

In older Warren and Ferndale homes, the floor flange is frequently cast iron and may have cracked or shifted over decades of use. A cracked flange requires flange repair or a repair ring before the toilet can be properly re-anchored. In tile or hardwood floors, the finish floor may have been installed without raising the flange to the correct height — leaving the toilet rocking on a flange that sits below the floor surface.

Fix: Bolt replacement and toilet re-anchoring $150–$220. Flange repair or repair ring installation adds $80–$150 if the flange itself is damaged.
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Urgent

Toilet Won’t Flush — or Flushes Weakly

$95–$350

A toilet that won’t flush requires diagnosing which of two fundamentally different problems is causing it: a drain clog or a mechanical flush failure. These require different approaches — and treating one when the other is the cause wastes time and money.

Drain clog: If the toilet gurgles when flushing, water rises to near the rim, or a plunger temporarily resolves the issue before it returns, the problem is a clog in the drain — either at the toilet trap or further down the branch line. Plunging may clear a soft clog; a drain snake is needed for a harder obstruction. See clogged drain cleaning for further guidance.

Mechanical failure: If the toilet bowl empties slowly or weakly without rising water, the problem is inside the tank — a failed flapper that closes too quickly, a worn fill valve that doesn’t supply full tank volume, or mineral-clogged rim jets that reduce the flushing water volume entering the bowl.

Fix: Mechanical flush repair $95–$200. Clogged drain clearing $150–$350 depending on obstruction type and location.
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Minor — Fix When Convenient

Stiff, Broken, or Unresponsive Handle

$95–$150

A toilet handle that requires two hands to flush, sticks in the down position, or has broken completely has a simple internal fix. The handle connects to the flapper via a lift chain and arm assembly inside the tank. Corrosion on the handle nut — common in older toilets in Macomb County’s hard water environment — causes the handle to stick. A disconnected or misadjusted chain causes the flapper to not open fully, producing a weak flush. A broken handle arm requires a direct replacement.

This is the lowest-urgency toilet problem on this list — but it compounds other issues. A handle that sticks in the flush position causes continuous running (same water waste as a failed flapper), and a handle that disconnects entirely means the toilet cannot be flushed without removing the tank lid and lifting the flapper manually.

Fix: Handle replacement and chain adjustment $95–$150. Typically completed in under 30 minutes.
New PVC drain lines set in a trench cut through a bathroom floor by Bison Plumbing, with a capped toilet drain stub, wood-paneled walls and a brick-pattern floor
The drain a toilet sits onA Bison bathroom drain rebuild with the toilet’s drain stub capped until the flange goes on. A leaking base or a rocking toilet is usually a problem at this connection, not with the toilet itself.
A white PVC drain and vent stack rebuilt inside a bathroom wall by Bison Plumbing, with the wall and floor opened at the base for the new fitting
The stack behind the wallA bathroom drain and vent stack rebuilt in PVC. Gurgling on flush or a slow bowl that a plunger only fixes for a day points here — a branch-line problem, not a tank problem.

Repair vs. Replace — When Each Is the Right Answer

Repair Is Right When

Fix the Existing Toilet

  • Single component failure — flapper, fill valve, handle, or wax ring
  • Toilet is under 15–20 years old with no history of repeat failures
  • Porcelain tank and bowl are intact — no cracks
  • Repair cost is under 50% of a replacement toilet installed
  • The toilet is a comfort-height or preferred style the homeowner wants to keep
  • Floor flange is in good condition — no repair complication
Replacement Makes Sense When

Install a New Toilet

  • Toilet is pre-1994 and uses 3.5–7 GPF — water savings from replacement are significant
  • Multiple repairs in the past 2–3 years — compounding component failures
  • Visible cracks in the tank body or porcelain bowl
  • Repair estimate approaches or exceeds $250–$300
  • Toilet is 20+ years old and showing multiple wear signs simultaneously
  • Homeowner wants a comfort-height, dual-flush, or elongated bowl upgrade
A Bison Plumbing technician in a blue shirt breaking out a tile floor with a demolition hammer, plastic sheeting laid over the surrounding floor
When the flange itself has failedA cracked cast-iron flange or a drain that has shifted under an older Warren home means opening the floor — the scope that tips a repair estimate toward replacement of the whole assembly.

Water Savings from Toilet Replacement — Oakland County Metered Billing

The Case for Replacing a Pre-1994 Toilet

The 1992 Energy Policy Act established 1.6 GPF (gallons per flush) as the federal maximum for new toilets, effective 1994. Toilets installed before that date use 3.5–7 GPF — two to five times the water of a modern model. Current WaterSense-certified toilets flush effectively at 1.28 GPF. For Oakland County and Macomb County homeowners on metered water and sewer billing, replacing a single pre-1994 toilet generates real monthly savings.

3.5–7 GPF — Pre-1994 toilet
5 flushes/day = 17–35 gallons daily
1.28 GPF — WaterSense model
5 flushes/day = 6.4 gallons daily
60% Water reduction — single toilet
~$80–$120/year saved on metered billing

For a home with two pre-1994 toilets, replacement with WaterSense models saves $160–$240 per year in water and sewer charges — a payback period of 2–3 years on the replacement cost at current Macomb County rates.

New white PVC drain lines with fittings running beneath an opened tile floor, connecting bathroom fixtures to the branch drain on a Bison Plumbing job
Where a replacement toilet connectsNew PVC beneath a tile floor, joining the fixture drains to the branch line. A new toilet is only as good as the flange and drain it is set on — Bison checks both before the wax ring goes down.
Service Cost Range Notes
Flapper Replacement $95–$150 Running toilet — most common repair. Includes supply shutoff and flush verification.
Fill Valve Replacement $100–$200 Running or slow-filling toilet. Includes adjustment and cycle testing.
Flapper + Fill Valve (both) $150–$220 Recommended combo for toilets 10+ years old — replaces both wear components while open.
Wax Ring Replacement $150–$280 Leaking base. Toilet removal, new wax ring and bolts, reinstall, leak test.
Floor Flange Repair $100–$200 add-on When flange is cracked or below floor height — repair ring or flange extension.
Handle Replacement $95–$150 Stiff, broken, or disconnected handle and lift chain assembly.
Full Toilet Replacement $250–$600 Remove old toilet, install new unit with wax ring, bolts, and supply line. Standard gravity-flush. Comfort-height and specialty models add to fixture cost.
The Food Coloring Test — Confirm a Leaking Flapper in 15 Minutes

If your water bill has gone up but you’re not sure whether your toilet is running, add 10–15 drops of food coloring to the toilet tank (not the bowl). Do not flush for 15 minutes. If color appears in the bowl without flushing, the flapper is leaking and wasting water continuously. This is a definitive test that confirms whether a flapper replacement — a $95–$150 repair — will resolve an unexplained water bill increase. Contact Bison to schedule same-day repair.

An old corroded galvanized drain pipe with an elbow exposed beneath a removed floor cabinet in an older home, seen on a Bison Plumbing repair call
What’s under an older Warren bathroomDecades-old galvanized drain piping exposed beneath a floor. Piping like this is why a rocking toilet in an older home can turn into a flange repair once the fixture comes up.
A basement bathroom rough-in by Bison Plumbing with new white PVC drain lines laid in a trench cut through the concrete slab, a washer and dryer in the background
A new toilet location, roughed inA basement bathroom drain rough-in with the toilet and shower drains set below the slab. When a homeowner adds a bathroom, this is the work that comes before the toilet is ever unboxed.

Frequently Asked Questions — Toilet Repair & Replacement

Why is my toilet running constantly?

A constantly running toilet is almost always caused by a failed flapper or faulty fill valve. The flapper is the rubber seal at the bottom of the tank — when it deteriorates it doesn’t seal, water continuously leaks into the bowl, and the fill valve runs to compensate. Macomb County’s hard water accelerates flapper wear. A running toilet wastes roughly 200 gallons per day — approximately $20–$40 per month at current water rates. Flapper replacement costs $95–$150 and is a same-day repair.

Why is water leaking from the base of my toilet?

Water at the toilet base during or after flushing almost always indicates a failed wax ring — the seal between the toilet horn and the floor drain flange. A failed wax ring allows sewer gas into the home and causes progressive subfloor water damage. Repair involves removing the toilet, replacing the wax ring and floor bolts, and reinstalling. This costs $150–$280 and should not be delayed — subfloor damage compounds quickly with each flush.

Should I repair or replace my toilet?

Repair is right for single component failures on a toilet under 15–20 years old where the repair cost is under $200. Replacement makes more sense when the toilet is pre-1994 (using 3.5–7 GPF vs. 1.28 GPF on modern models), has had multiple repairs in the past few years, has visible porcelain cracks, or the repair estimate approaches $250–$300. Bison provides an honest repair-or-replace recommendation based on the toilet’s actual condition — not the higher-margin option.

How much does toilet repair or replacement cost in Michigan?

Flapper and fill valve repairs run $95–$220. Wax ring replacement runs $150–$280. Handle replacement runs $95–$150. Full toilet replacement (standard gravity-flush) runs $250–$600 including the new toilet, wax ring, bolts, supply line, and labor. All pricing is upfront before work begins.

Can a running toilet really increase my water bill significantly?

Yes — a running toilet is one of the most significant sources of household water waste. A continuously running toilet typically wastes 200–400 gallons per day. At Macomb County’s current water and sewer rates, that’s roughly $20–$60 per month in wasted water cost. If your bill has spiked unexpectedly, add food coloring to the tank and watch whether color appears in the bowl without flushing — if it does, the flapper is the source.

The Bison Plumbing team in matching blue shirts posed in front of a Bison Plumbing service van in Warren, Michigan
The people who show upBison’s licensed plumbers in Warren. Same-day toilet calls across Macomb and Oakland County are handled by this crew — not a subcontractor.

Toilet Problem? Most Repaired Same Day.

Bison Plumbing fixes running toilets, leaking bases, rocking units, and flush failures across Macomb and Oakland County. Honest diagnosis — repair when that’s the right answer, replace when it isn’t. Warren, MI since 1998.

Schedule Toilet Repair Today (248) 247-7707 3,000+ five-star customers — LARA licensed — same-day service available