Toilet
TOILET REPAIR & REPLACEMENT IN SALT LAKE CITY
Running constantly, won't flush, leaking at the base, rocking on a 1908 cast-iron flange. Same-day in SLC. Repair, rebuild, or full replacement — flat-rate quote before we touch a tool.
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3,132+ reviews
24/7 Emergency
60–90 min dispatch
Licensed & insured
Utah plumbing contractor
5 Utah counties
50+ cities served
Flat-rate pricing
Quoted before we start
Overview
What's wrong with the toilet — and what it costs to fix
Toilets are simpler than they look. The whole system is just three jobs done by interchangeable parts: fill the tank (fill valve), hold the water until you flush (flapper), and flush cleanly (flush valve and trap). When something goes wrong, it's almost always one of those three failing. The complication in old Salt Lake City homes is the flange — the metal collar that connects the toilet to the cast iron drain stack — which in pre-1970 homes is often a corroded, broken, or split lead bend that nobody noticed until the toilet started rocking.
What we fix
- Running constantly — flapper, fill valve, or flush valve. $145–$285 typical, fastest fix in plumbing.
- Won't flush or weak flush — clogged trap, broken flush handle/chain, low water level. $185–$385.
- Clogged toilet — auger or closet snake. $185–$295. If recurring, the clog is downstream and we recommend a camera.
- Leaking at the base — wax seal failure or cracked flange. $245–$485 depending on flange condition (and in pre-1970 SLC homes, the flange is usually the bigger problem).
- Rocking on the floor — almost always a broken or rusted-out cast iron flange. $385–$685 to repair properly. Common in old SLC bathrooms.
- Full toilet replacement — old, cracked, low-flow noncompliant, or just ugly. $385–$865 installed.
The SLC cast iron flange problem
Here's what we see weekly in old SLC homes. A homeowner notices the toilet rocking. Maybe there's a faint sewer smell after a flush. They tighten the bolts and the rocking stops for a week, then comes back. They call us. We pull the toilet, and the cast iron flange — the round collar set into the floor that the toilet bolts to — is cracked, rusted through at the rim, or has a broken-off ear. The wax seal failed because the flange isn't flat anymore.
In a 1920 Avenues home, this is a 90% probability. The fix is either a flange repair plate over the existing flange, a full flange replacement (which means cutting into the cast iron drain stack), or a sleeve repair. We pick the right one based on what's there. Members of the Quality Service Club get 15% off the flange repair plus the inspection that catches it before the rocking.
What Valley does differently in SLC
Toilet calls schedule same-day in most cases. Tech arrives with common fill valves, flappers, wax seals, flange repair plates, and a closet snake on the truck. Common toilet brands (Toto, American Standard, Kohler) we stock parts for. If we recommend replacement, we explain why instead of trying to extend a $185 repair into a $700 replacement. Flat-rate quote before we touch a wrench.
Free quote
Schedule SLC toilet service
Tell us the symptom and brand. Same-day appointment for most calls.
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Flange inspection with any toilet pull or replacement
Inspection only. Repair quoted separately. Valid in SLC.
Expires 12/31/2026
$50 OFF
Toilet replacement over $500
Standard pricing. One per household.
Expires 12/31/2026
Mention coupon when booking. One offer per household.
Warning signs
Signs Your SLC Toilet Needs Repair
Most of these mean a $200 fix today vs. a $700 fix if you wait.
Toilet runs constantly or refills randomly when no one used it
Weak flush, partial flush, or have to hold the handle down
Toilet rocks side-to-side when you sit on it (cast iron flange issue in old homes)
Water pooling around the base of the toilet
Faint sewer smell in the bathroom even when the toilet seems fine
Crack visible in the bowl or tank
Toilet whistles or moans when refilling
Clog you can't clear with a plunger
Multiple toilets in the house running or backing up at once (main line)
Mineral stain or scale ring in the bowl that won't scrub off (hard water)
Same-day
Running toilet wasting 100+ gallons a day.
A flapper or fill valve fix costs less than two months of the wasted water bill. Same-day appointments most weekdays in SLC.
Most fill valve fixes
30 min
Across Salt Lake, Utah, Davis, Weber, and Tooele counties.
The Process
How a Toilet Service Call Goes in SLC
On the truck
Cable machine, jetter, and pipe camera — every call.
On-phone diagnosis
Tell us the symptom. Running, leaking, rocking, clogged, won't flush — we know what part to bring before we roll. Saves a return trip.
On-site inspection
Tech checks the obvious failure first (fill valve, flapper, supply line) and the less obvious (flange condition, wax seal, floor saturation). If the toilet is rocking, we pull it to check the flange — that's the usual answer in old SLC homes.
Flat-rate quote
You see the price before we touch anything. If it's a $185 fill valve, that's the price. If it's a $385 flange repair because the cast iron is rotted, you see why on a phone photo.
Repair or replace
Most repairs are 30–60 minutes. Flange repairs run 60–120 minutes. Full toilet replacement is 60–90 minutes including hauling the old one out.
Test and clean up
Three full flushes verify the fix. Floor wiped, tools out, no mess left behind.
Pricing
Toilet Repair Cost in Salt Lake City
Flat-rate, quoted before we start. Same-day in most cases.
Fill valve replacement
Low
$145
High
$245
Member
$123
– $208
Most common toilet repair, 20–30 min
Flapper or flush valve replacement
Low
$145
High
$245
Member
$123
– $208
Stops constant running
Toilet rebuild (full internals)
Low
$185
High
$385
Member
$157
– $327
All new fill, flush, flapper, supply
Wax seal replacement
Low
$245
High
$385
Member
$208
– $327
Pull toilet, replace seal, reset
Cast iron flange repair
Low
$385
High
$685
Member
$327
– $582
Common in pre-1970 SLC homes — repair plate or sleeve
Full flange replacement
Low
$485
High
$985
Member
$412
– $837
Cut into cast iron drain, install new flange
Toilet clog clearing (closet auger)
Low
$185
High
$295
Member
$157
– $251
Single fixture clog
Toilet replacement
Low
$385
High
$865
Member
$327
– $735
Includes new toilet, wax seal, supply line, haul-off
Service call / diagnostic
Low
$89
High
$129
Member
$76
– $110
Waived if you do the repair
Emergency after-hours surcharge
Low
$95
High
$150
Member
$81
– $128
Nights, weekends, holidays
Member pricing reflects the Quality Service Club 15% repair discount. Service call fees are separate.
Customer-supplied toilets installed at $245–$385 labor only. Wall-hung toilets, smart toilets, and macerator units quoted separately.
Quality Service Club
Skip the bill. Skip the line.
For $79 a year, members get 15% off every repair, priority dispatch on every call, and a free annual drain and plumbing inspection — the same stuff we'd charge $195 for on a cold call.
- 15% off repairs
- Priority dispatch
- Annual inspection
- 24/7 service access
- $25 referral bonus
- Parts + labor warranty
Plumbing
$79/year
- 15% off all plumbing repairs
- Priority dispatch — skip the line
- Annual drain piping inspection
- Full home water-supply inspection
- Tag on your emergency shut-off
- $25 referral bonus
HVAC (1 unit)
$199/year
- 15% off HVAC repairs
- Priority dispatch on furnace or AC calls
- Annual furnace + AC safety inspection
- Thermostat calibration and battery swap
- Outdoor condenser cleaning check
Plumbing + HVAC
$258/year
- Everything in both plans
- Whole-home annual inspection
- 15% off every service we offer
- Priority dispatch across plumbing and HVAC
Questions? Talk to a real human — (801) 341-4222
Cancel anytime. 1-year minimum.
FAQ
Toilet FAQs in Salt Lake City
A simple running toilet (fill valve or flapper) is $145–$245. Full internal rebuild is $185–$385. Wax seal replacement is $245–$385. Cast iron flange repair in old SLC homes is $385–$685. Full toilet replacement runs $385–$865 installed.
Related services
Related Salt Lake City Plumbing Services
Faucet Repair
Drips, slow flow, broken handle in kitchen and bath fixtures.
Drain Cleaning
Recurring clog? Could be downstream, not the toilet.
Water Leak Detection
Sewer smell with no obvious cause? We find it.
Bathroom Remodeling
Full bath remodel including new flange, fixture, and rough-in.
24/7 Emergency Plumber
Toilet overflowing and won't stop? Call now.
Available Around the Clock
Emergency?
We answer 24/7.
Burst pipe, no heat, AC down? Real plumbers pick up — no answering machines. Valley Plumbing serves Salt Lake City and surrounding areas any time, day or night.
Licensed & Insured — Utah Plumbing Contractor