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.

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

💧
⚠ 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.
🚫
🔴 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.
🔄
🔴 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.
💀
🔴 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.
🔨
🟢 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.

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

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.

ServiceCost RangeNotes
Flapper Replacement$95–$150Running toilet — most common repair. Includes supply shutoff and flush verification.
Fill Valve Replacement$100–$200Running or slow-filling toilet. Includes adjustment and cycle testing.
Flapper + Fill Valve (both)$150–$220Recommended combo for toilets 10+ years old — replaces both wear components while open.
Wax Ring Replacement$150–$280Leaking base. Toilet removal, new wax ring and bolts, reinstall, leak test.
Floor Flange Repair$100–$200 add-onWhen flange is cracked or below floor height — repair ring or flange extension.
Handle Replacement$95–$150Stiff, broken, or disconnected handle and lift chain assembly.
Full Toilet Replacement$250–$600Remove 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.