Bathroom Remodel
BATHROOM REMODELING PLUMBING IN SALT LAKE CITY
Adding a basement bath in your 1908 Avenues bungalow. Full primary bath remodel in Yalecrest. New layout with relocated fixtures in Sugar House. We handle plumbing — rough-in, supply, drain, vent, and fixture set.

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Utah plumbing contractor
5 Utah counties
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Overview
What we do on a bathroom remodel in an old SLC home
Bathroom remodels in Salt Lake City are roughly two distinct jobs that look the same on Pinterest but are very different in practice. Modern home with PEX supply and PVC drain — straightforward, predictable, fast. Pre-1950 home with galvanized supply, cast iron drain, lath-and-plaster walls, and a 1928 footprint that doesn't match modern code — significantly more work, but where the magic of an Avenues bath remodel actually happens.
We handle the plumbing scope of bathroom remodels. We work alongside general contractors and homeowners doing their own remodels. Some homeowners hire us as the plumbing sub on a project they're managing themselves; others have a GC who hires us. Either way, we coordinate with the trades that come before and after — demo, framing, electrical, drywall/plaster, tile, and fixture install.
What our scope typically includes
- Demo plumbing prep — capping supply, drain, and vent before tile/wall demo so the rest of the trades can work clean
- Rough-in for new layout — supply lines, drain stack, vent, water heater connection, gas if applicable. Repipe the run if it makes sense.
- Code upgrades — new construction in SLC requires modern fixtures, AAV or proper venting, anti-scald valves, GFCI proximity, and accessibility considerations on some remodels
- Fixture set — toilet, sink, shower valve, tub spout, drain trim. Customer-supplied or we provide.
- Permit and inspection — SLC requires permits on new bathroom add and significant fixture relocations. We pull and coordinate.
- Old galvanized/cast iron transitions — when remodeling means cutting into old plumbing, we transition to PEX/PVC properly with code-approved couplings.
Adding a basement bathroom in an old SLC home
Common SLC remodel scenario. You bought a 1925 Avenues bungalow with a partial basement. You want to add a 3/4 bath down there for a teenager, an Airbnb unit, or just a guest space. The challenge: the basement floor is six feet below the city sewer at the street, so gravity-fed drainage from a basement toilet doesn't work. You need either a sewer ejector pump (lift station that pumps waste up to the existing main drain), an upflush macerator toilet (compact alternative), or a saw-cut/excavate of the basement slab to lower the drain below grade.
We've done all three. The right one depends on basement layout, slab thickness, sewer depth, and budget. Camera scope of the existing line and a measured assessment is the first step. Pricing for a basement bath add (full plumbing scope, ejector pump, fixture set) typically runs $8,500–$18,000 in SLC depending on which approach.
Old plaster wall and tile considerations
Every fixture on an old SLC bathroom wall is anchored to lath behind plaster, not modern drywall blocking. When we cut for new supply or drain, we plan the cuts so the plaster is restorable, and we coordinate with a plaster specialist for patching. Old subway tile in 1925 Avenues bathrooms is a heritage feature — if the tile is staying and only fixtures are changing, we work behind the wall through closets or basement ceilings to avoid tile damage where possible.
Pricing range
Bathroom remodel plumbing scope only — $4,500 (small fixture refresh in modern home) to $25,000+ (full add of basement bath in pre-1950 home with sewer ejector). Typical SLC primary bath remodel plumbing scope is $8,000–$18,000. Full bath remodel including fixtures, finishes, and trades runs $12,500–$45,000+ — but those costs are GC-managed, not plumbing-only. We can recommend GCs we work with regularly. Members of the Quality Service Club get 15% off the plumbing scope plus priority scheduling on remodel timelines.
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Schedule SLC bathroom remodel quote
On-site assessment with you or your GC. Itemized plumbing scope and pricing.
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Warning signs
When You Need a Plumber on Your SLC Bathroom Remodel
Some remodels are tile-only. Others change the plumbing significantly. Here's when our scope kicks in.
Adding a new bathroom (basement, attic, addition)
Moving fixtures to new locations within an existing bathroom
Replacing a tub with a walk-in shower (different drain configuration)
Adding a primary bath suite in an old home that didn't have one
Converting a half-bath to a full bath
Replacing original galvanized supply with PEX during the remodel
Replacing original cast iron drain with PVC
Adding gas connection for a fireplace, towel warmer, or radiant
SLC permit required for the scope you're planning
Old fixtures that don't meet modern code (low-flow, anti-scald)

Old home, new bath
Adding a basement bath in your 1908 Avenues bungalow.
Sewer ejector or slab cut, code-compliant rough-in, modern fixtures with old-home character. We've done dozens. SLC permit pulled, inspected at every stage.
Old SLC bath remodels
Dozens
Across Salt Lake, Utah, Davis, Weber, and Tooele counties.
The Process
How a Bathroom Remodel Plumbing Scope Goes in SLC

On the truck
Cable machine, jetter, and pipe camera — every call.
On-site assessment with you or your GC
Walk the existing space and the plan. Identify which existing plumbing stays, what gets cut, and what new is needed. In old SLC homes, also identify what plumbing should be upgraded while walls are open (galvanized supply, old drain stacks).
Scope and pull permit
Written scope with itemized pricing. Coordinate with GC if applicable. Pull SLC permit before demo starts.
Demo prep
Cap existing supply and drain, isolate the bathroom from house water, prep for tile/drywall demo to happen without flooding.
Rough-in
New supply lines, drain, and vent for new layout. Pressure-test supply, water-test drains. SLC rough-in inspection before walls close.
Fixture set and final
After tile/drywall finish, return for fixture set — toilet, sink, shower valve, tub spout, drain trim, towel warmers if applicable. Final SLC inspection. Walkthrough.
Pricing
Bathroom Remodel Plumbing Cost in Salt Lake City
Plumbing scope only. GC-managed remodel total cost is separate. Final cost depends on layout changes, age of existing plumbing, and whether you're adding a new bath.
Fixture-only refresh (no rough-in)
Low
$1,850
High
$4,500
Member
$1,573
– $3,825
Toilet, sink, shower valve replacement in same locations
Standard bath remodel plumbing (modern home)
Low
$4,500
High
$12,500
Member
$3,825
– $10,625
Some fixture relocation, no major rough-in changes
Full primary bath remodel (old SLC home)
Low
$8,000
High
$18,000
Member
$6,800
– $15,300
Pre-1950 home with old plumbing upgrades during remodel
Adding a basement bathroom (with ejector pump)
Low
$12,500
High
$25,000
Member
$10,625
– $21,250
Common Avenues/Sugar House addition
Adding a basement bathroom (slab cut)
Low
$15,000
High
$30,000
Member
$12,750
– $25,500
Saw cut concrete, lower drain, repour
Sewer ejector pump install
Low
$2,500
High
$4,500
Member
$2,125
– $3,825
For below-grade fixtures in SLC basements
Half-bath to full bath conversion
Low
$6,500
High
$15,000
Member
$5,525
– $12,750
Adding tub/shower drain, supply, and vent
Galvanized-to-PEX repipe during remodel
Low
$1,850
High
$4,850
Member
$1,573
– $4,123
Open walls = half the labor of standalone repipe
SLC permit and inspection
Low
$250
High
$850
Member
$213
– $723
Pulled by us, included in scope
Customer-supplied fixture install (per fixture)
Low
$145
High
$385
Member
$123
– $327
Toilet, sink, shower valve install labor only
Member pricing reflects the Quality Service Club 15% repair discount. Service call fees are separate.
Plumbing scope only. Tile, drywall/plaster, electrical, framing, and finish work are separate trades. Full remodel total cost typically $12,500–$45,000+ GC-managed.
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
Bathroom Remodel FAQs in Salt Lake City
Plumbing scope only — $1,850–$4,500 for fixture-only refresh, $4,500–$12,500 for standard remodel in a modern home, $8,000–$18,000 for a full primary bath remodel in a pre-1950 SLC home, $12,500–$25,000 for adding a basement bath. Full GC-managed remodel total cost (with tile, drywall, finishes, and trades) typically runs $12,500–$45,000+.
Related services
Related Salt Lake City Plumbing Services

Repiping
Repipe during remodel at half the labor cost — open walls.

Toilet Repair
Toilet replacement and flange repair as part of remodel.

Faucet Repair
Faucet replacement and shutoff valve upgrade in remodel scope.

Water Heater Repair & Install
Add or relocate water heater during major remodel.

Gas Line Repairs
Gas line for new fireplace, range, or radiant during remodel.
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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.
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