Mount Timpanogos in the Wasatch Range above Utah County

Licensed Utah General Contractor

Bathroom Remodeling in Utah

Allegiant Construction is a licensed Utah general contractor for full-scope bathroom remodels across Northern Utah. We remove only what is being replaced, protect the rest of your home, and rebuild the room on a written schedule.

What We Build

A Bathroom Remodel, in Construction Order

Scope covers demolition; layout and framing changes; plumbing, mechanical, and electrical rough-in; insulation; drywall and cement backer board; waterproofing; tile; cabinetry; countertops; finish carpentry; and fixtures.

  1. Demolition

    The toilet, vanity, tile, tub or shower, and wall finishes are removed to the framing. Dust barriers and floor protection seal the work area from the rest of the house.

  2. Layout and Framing Changes

    Walls, niches, a shower bench, and any recessed floor for a curbless entry are framed to the approved plan. Blocking goes in for grab bars, vanities, glass, and wall-hung fixtures.

  3. Plumbing, Mechanical, and Electrical Rough-In

    Drains and vents, supply lines, the shower valve, the exhaust fan duct, GFCI-protected circuits, and lighting are set to the new layout and inspected while the framing is still exposed.

  4. Insulation

    Exterior walls are insulated to Utah's energy code. Interior walls can take sound-attenuation batts while they are open.

  5. Drywall and Cement Backer Board

    Moisture-resistant drywall covers the walls and ceiling outside the wet areas. Cement backer board goes behind every tiled shower and tub surround.

  6. Waterproofing

    A continuous membrane covers the shower walls, the shower floor sloped to its drain, and the curb or curbless transition. Every seam is checked before tile goes on.

  7. Tile

    Floor and shower tile are laid out from the room's centerlines. In the shower, the tile is set over the membrane. An electric heated floor, when you choose one, goes in beneath the floor tile.

  8. Cabinetry, Countertops, and Finish Carpentry

    The vanity and countertop go in once the tile is grouted, followed by the door casing and baseboard.

  9. Fixtures and Glass

    Sinks, faucets, the toilet, shower trim, frameless or framed glass, mirrors, light fixtures, towel bars, and cabinet hardware are installed. The room is then cleaned for the final walkthrough.

Before the Tile

Permits, Ventilation, and Waterproofing for a Utah Bathroom

Three parts of a bathroom remodel come in the order the room is built: the permit before demolition, the exhaust duct at rough-in, and the waterproofing membrane before any tile is set.

Permits

Inspected at Rough-In

Relocating a drain, a shower valve, an exhaust fan, or a circuit takes a building permit. The plumbing, mechanical, and electrical rough-in is then inspected before drywall and backer board go up.

Ventilation

An Exhaust Fan Ducted Outdoors

Bathroom exhaust discharges outdoors under the 2021 International Residential Code as adopted in Utah. Moisture leaves the house instead of collecting in the attic or the wall cavities.

Waterproofing

A Continuous Membrane

Grout and tile are not waterproof. A sheet or liquid-applied membrane behind them keeps water out of the framing.

2021 IRC as Adopted in Utah

Utah Bathroom Code Requirements for a Remodel

These residential code sections set the layout, plumbing, and ventilation of a Utah bathroom and are listed in the order the room is built. Each requirement is drawn into the plan before demolition.

Toilet and Bidet Clearances

A toilet or bidet sits at least 15 inches from its center to any side wall, partition, or vanity and at least 30 inches center to center from an adjacent fixture, under Section P2705.1. It also needs 21 inches or more of clear space in front of it to any wall, fixture, or door.

Lavatory Clearances

Utah's amendments take lavatories out of the toilet rule, under Item 9 of Section P2705.1. Each lavatory sits at least 12 inches from its center to any side wall or partition, with a clear space 24 inches wide and 21 inches deep in front of it.

Shower Size

A shower has at least 900 square inches of interior area and a minimum finished dimension of 30 inches, or a 25-inch minimum dimension where its area reaches 1,300 square inches. The required area and dimension continue to at least 70 inches above the drain, under Section P2708.1. A fold-down seat is allowed in the shower when the required 900 square inches remain with the seat folded up. The shower's entry is at least 22 inches wide, and hinged doors open outward, under Sections P2708.1 and P2708.1.1.

Ceiling Height

A bathroom or toilet room needs a ceiling height of at least 6 feet 8 inches, under Section R305.1. A shower, or a tub with a showerhead, keeps that height over a 30-by-30-inch area at the showerhead. Above the other fixtures, the ceiling only has to let each one be used for its intended purpose. In a basement bathroom, beams and ducts may project to within 6 feet 4 inches of the finished floor.

Shower Drain and Riser

A shower drain has an outlet of at least 1 1/2 inches, under Section P2708.2. The supply riser from the valve to the showerhead is attached to the structure with supports made for its piping material or with fittings anchored by screws, under Section P2708.3.

Shower Valve

Every shower and tub-shower valve is a balanced-pressure, thermostatic, or combination valve, rated for the flow of the installed showerhead and set to limit the water temperature to 120 degrees Fahrenheit, under Section P2708.4.

Tub Valves

A bathtub or whirlpool tub valve that is not a combination tub-shower valve has or is supplied by a water-temperature-limiting device set to no more than 120 degrees Fahrenheit, under Section P2713.3.

Fixture Shutoff Valves

The residential code requires a shutoff valve on each supply pipe to the lavatory, the toilet, and any bidet, with bathtubs and showers exempt, under Section P2903.9.3. Utah's plumbing amendments also exempt a fixture or plumbing appliance that has a wall-mount valve.

Water Use

Utah's amendments limit a lavatory faucet to 1.5 gallons per minute at 60 psi and a showerhead, hand-held sprays included, to 2 gallons per minute at 80 psi, under Table P2903.2. The same table holds a toilet to 1.6 gallons per flush.

Hand Showers

A hand-held shower carries backflow protection under its listing standard or through a separate backflow device, under Section P2708.5.

Bidets

A bidet fitting delivers water no hotter than 110 degrees Fahrenheit through a water-temperature-limiting device, under Section P2721.2.

Whirlpool Tub Access

A whirlpool tub's circulation pump is reached through the access its manufacturer specifies. Where the manufacturer specifies none, the access opening is at least 12 by 12 inches, or 18 by 18 inches when the pump sits more than 2 feet from it, under Section P2720.1.

Ventilation

A bathroom needs either windows with at least 3 square feet of glazing, half of it openable, or artificial light and an exhaust fan ducted directly outdoors, under Section R303.3. The fan is rated for at least 50 cfm intermittent or 20 cfm continuous at 0.25 inch of static pressure, under Section M1505.4.4.

Fan Discharge

Bathroom exhaust is never recirculated or discharged into an attic, a soffit, a ridge vent, a crawl space, or any area inside the house, under Sections M1501.1 and M1505.2.

Fan Duct Length

The fan duct stays within the maximum length Table M1504.2 sets for the fan's rating and the duct's type and diameter, less 15 feet for each elbow, unless the duct follows the fan manufacturer's design criteria or the installed airflow is measured, under Section M1504.2.

Fan Termination

The exterior termination sits at least 3 feet from property lines and from operable windows, doors, and gravity air intakes, and at least 10 feet from a mechanical air intake unless it is at least 3 feet above that intake, under Section M1504.3.

Sources: IRC Chapter 27, plumbing fixtures; IRC Chapter 29, water supply; IRC Chapter 3, building planning; IRC Chapter 15, exhaust systems; Utah Code 15A-3-205, plumbing amendments.

Electrical and Waterproofing

Bathroom Electrical, Shower Pan, and Glass Requirements in Utah

Utah's residential code also sets the bathroom's wiring, shower pan, tile backer, glass, and alarms.

Receptacles

At least one receptacle sits within 36 inches of the outside edge of each basin, under Section E3901.6. Wherever it sits, on an adjacent wall, on the countertop in an assembly listed for that use, or on the side or face of the vanity, it is no more than 12 inches below the top of the basin or its countertop.

Bathroom Circuit

Bathroom receptacles are supplied by a 20-amp circuit that serves no other outlets, unless it supplies a single bathroom, where it may also serve that room's other equipment, under Section E3703.4.

Ground-Fault Protection

Every 125-volt, 15- or 20-amp bathroom receptacle has GFCI protection, under Section E3902.1.

Tub and Shower Space

Utah's amendments prohibit any receptacle within or directly over a bathtub or shower stall, under Section E4002.11.

Lighting Control

The bathroom has at least one lighting outlet on a listed wall-mounted control by the door, under Section E3903.2.

Fixtures over the Tub

Cord-connected lights; chain-, cable-, or cord-suspended lights such as chandeliers; lighting track; pendants; and ceiling-suspended fans keep every part out of the zone 3 feet horizontally and 8 feet vertically from the tub rim or shower threshold. A light within the tub or shower footprint, up to 8 feet above the rim or threshold, is rated for damp locations, or for wet locations where shower spray reaches it, under Section E4003.11.

Whirlpool Tub Circuit

A whirlpool tub runs on its own branch circuit with a readily accessible GFCI, and receptacles within 6 feet of its inside walls are GFCI-protected as well, under Section E4209.2.

Heated Floors

Electric floor heating cable under bathroom tile has GFCI protection, under Section E3902.14.

Shower Floor and Curb

The shower floor slopes toward the drain at 1/4 to 1/2 inch per foot, under Section P2709.1. Where the receptor has a finished curb threshold, the curb sits at least 1 inch below the sides and back of the receptor and 2 to 9 inches above the top of the drain.

Shower Pan Liner

A shower floor built on site is lined with sheet lead or copper, a PVC or CPE liner, hot mopping, or a sheet or liquid bonded waterproof membrane meeting ANSI A118.10, under Section P2709.2. The lining is carried at least 2 inches beyond the rough jambs and 2 inches above the finished threshold.

Liner Installation

The liner slopes 1/4 inch per foot to the weep holes over a smooth, solid subbase and is never nailed or punctured less than 1 inch above the finished threshold, under Section P2709.3.

Shower Drain Flange

A flanged drain clamps the liner watertight, and its flange, set flush with the subbase, has weep holes into the drain, under Section P2709.4.

Shower and Tub Walls

Walls in a shower, and above a tub with a showerhead, are finished with a nonabsorbent surface to at least 6 feet above the floor, under Section R307.2. The surface goes over a backer the code names for tile in wet areas, such as fiber-cement, cementitious backer units, or glass mat gypsum panels, under Section R702.4.2.

Safety Glass

Glass in a tub or shower enclosure, and glass within 60 inches horizontally of the water's edge of a tub or the edge of a shower, is safety glazing when its bottom edge is less than 60 inches above any standing or walking surface, under Section R308.4.5.

Smoke and Carbon Monoxide Alarms

When a remodel needs a permit, Utah's code calls for smoke alarms throughout the home in the locations required for new homes, under Section R314.2.2. That rule exempts work on the home's exterior surfaces, such as replacing windows or doors, and work on plumbing or mechanical systems. Where the home has a fuel-fired appliance or an attached garage with an opening into the house, carbon monoxide alarms are also required in the new-home locations, unless the permit covers only exterior work, plumbing work, or mechanical work that is not fuel fired, under Sections R315.2.1 and R315.2.2.

Sources: IRC Chapter 39, power and lighting distribution; IRC Chapter 37, branch circuits; IRC Chapter 40, devices and luminaires; IRC Chapter 42, hydromassage bathtubs; IRC Chapter 27, shower receptors; IRC Chapter 7, wall covering; IRC Chapter 3, safety glazing and alarms; Utah Code 15A-3-206, electrical amendments.

How We Build

Our Remodeling and Construction Process

Every Allegiant Construction project moves through three phases, from the first measurement to the last punch list item. As your general contractor, we manage the permits, inspections, and schedule in each one.

Design and Preconstruction

We measure your space, produce permit-ready plans, and help you finalize every selection. We set the scope, the schedule, and the contractor's fee in writing and secure permits through the Authority Having Jurisdiction before demolition begins.

Construction

Demolition, framing, plumbing, mechanical, and electrical rough-in, and finishes proceed in sequence, with the work area sealed off and your questions answered the same day. Rough-in and framing pass their inspections before insulation and drywall cover them, and any change goes through a written change order before that work proceeds.

Completion and Closeout

We pass final inspection, walk the finished space together, create the punch list, and complete every remaining item. Your one-year warranty on work and materials begins at substantial completion, and warranty calls come directly to Allegiant Construction.

What It Can Become

Bathroom Remodels Built around How the Room Is Used

Each of the four directions below is planned during preconstruction, before any framing, drain, or valve is changed.

Primary Bathroom

A Larger Primary Bathroom

A walk-in shower, a double vanity, a freestanding tub, or a separate water closet is laid out while the drains and supply lines are still free to move.

Accessibility

A Curbless, Accessible Bathroom

A curbless shower, a wider doorway, blocking for grab bars, and a comfort-height toilet let the room serve the household as mobility needs change.

Tub to Shower

A Tub Converted to a Shower

The tub comes out, and a walk-in shower is framed in its place. The drain and valve move to the shower layout before the enclosure is waterproofed and tiled.

Guest Bathroom

A Guest or Basement Bathroom

A guest or basement bathroom receives the same ducted exhaust fan, inspected rough-in, and membrane as a primary bathroom.

Concept directions for planning, not past projects.

Design Choices

Bathroom Remodeling Options for a Utah Home

The rough-in is built around these choices. Each one is settled with you during preconstruction.

Showers

A walk-in shower with a curb or a curbless entry, a linear or center drain, a bench and recessed niches, and a frameless or framed glass enclosure.

Tubs

A freestanding, alcove, or drop-in tub, or a tub and shower combination.

Vanities and Storage

A single or double vanity, a floating vanity on wall blocking, a linen cabinet, and a recessed medicine cabinet framed into the wall.

Tile and Surfaces

Porcelain, ceramic, or natural stone tile; large-format wall panels; and quartz or stone countertops.

Comfort

A thermostatic shower valve, a quiet exhaust fan with a humidity sensor, and an electric heated floor beneath the tile.

Lighting

Vanity lighting, recessed ceiling lights, and a shower light rated for wet locations.

How We Price

How Much Does a Bathroom Remodel Cost in Utah?

Most bathroom remodels are built on open-book, cost-plus terms.

Conditions behind the Walls

A rotted subfloor, out-of-level framing, galvanized or failing supply lines, or water damage found at demolition is repaired through a written change order.

Layout

Keeping the toilet, shower, and vanity in their current locations costs less than moving drains, vents, and supply lines through the floor and walls.

Code Items

An older bathroom may need a ducted exhaust fan, GFCI-protected receptacles, and updated smoke alarms to meet the code in force when the permit is issued.

Size of the Wet Area

A larger shower, a bench, or a curbless entry adds framing, waterproofing, and tile to the scope.

Tile and Stone

The tile itself, its size, and the laying pattern set both the material cost and the labor to install it.

Fixtures and Glass

Shower valves, faucets, toilets, and frameless or framed shower glass vary widely in cost from one selection to the next.

After a walkthrough, you receive a written, non-binding estimate. The work is billed at actual cost plus the contractor's fee. The fee is agreed in writing before construction begins.

How Cost-Plus Pricing Works
Map of the eight Northern Utah counties Allegiant Construction serves, with West Jordan markedGreatSalt LakeSALT LAKEUTAHWASATCHSUMMITDAVISWEBERMORGANCACHELoganOgdenLaytonSalt Lake CityPark CityHeber CityProvoMorganWest Jordan
Relief: U.S. Geological Survey, The National Map. County lines: U.S. Census Bureau.

Where We Build

Bathroom Remodeling across Northern Utah

We remodel bathrooms in all eight counties we serve. Each application goes to the office that issues permits for work at the home's address.

Bathroom Remodeling in Salt Lake County

Bathroom Remodeling in Utah County

Alpine, Highland, Lehi, Cedar Hills, American Fork, Pleasant Grove, Saratoga Springs, Lindon, Cedar Fort, Eagle Mountain, Vineyard, Orem, Provo, Fairfield, Springville, Mapleton, Spanish Fork, Salem, Payson, Woodland Hills, Genola, Elk Ridge, Spring Lake, Santaquin, and Goshen.

Utah County Permits and Communities

Bathroom Remodeling in Wasatch County

Hideout, Heber City, Interlaken, Midway, Center Creek, Charleston, Daniel, Independence, and Wallsburg.

Wasatch County Permits and Communities

Bathroom Remodeling in Summit County

Henefer, Coalville, Wanship, Silver Summit, Summit Park, Oakley, Peoa, Snyderville, Park City, Kamas, and Francis.

Summit County Permits and Communities

Bathroom Remodeling in Davis County

Bathroom Remodeling in Weber County

Pleasant View, North Ogden, Plain City, Farr West, Ogden Valley City, Harrisville, Marriott-Slaterville, Huntsville, Ogden, West Haven, Riverdale, South Ogden, Roy, Washington Terrace, Hooper, and Uintah.

Weber County Permits and Communities

Bathroom Remodeling in Morgan County

Mountain Green, Peterson, Croydon, Morgan, and Porterville.

Morgan County Permits and Communities

Bathroom Remodeling in Cache County

Lewiston, Cornish, Richmond, Clarkston, Trenton, Newton, Amalga, Smithfield, Hyde Park, North Logan, Logan, River Heights, Mendon, Providence, Millville, Nibley, Hyrum, Wellsville, and Paradise.

Cache County Permits and Communities

Bathroom Remodeling by City and Town

Every County and Community We Serve

What Homeowners Ask

Utah Bathroom Remodeling Questions

Do you take small bathroom projects, like a vanity swap?

No. We take full-scope bathroom remodels only, from demolition and rough-in through tile, finish carpentry, and fixtures.

Can you convert a tub to a walk-in shower?

Yes, as part of a full remodel of the room: the framing, drain, valve, waterproofing, and tile are all rebuilt for the new shower.

Can you build a curbless shower?

Yes, where the floor framing allows the shower area to be recessed for drainage. We confirm the floor structure during preconstruction, then design the slope and waterproofing around the recess.

Do you remodel bathrooms in condos and townhomes?

Yes. When a homeowners association requires approval before work starts, we plan the schedule around that approval and follow the association's rules on work hours and access.

Do you help with tile and fixture selections?

Yes. Every selection is finalized during preconstruction, with your designer or directly with us. Materials are ordered before demolition.

Do I need a permit to remodel a bathroom in Utah?

Yes, when the remodel changes a wall, relocates a drain, replaces a pipe, moves or replaces a valve, moves an exhaust fan, or alters a circuit. Under Section R105.2 of the residential code, tiling, cabinets, countertops, and similar finish work need no permit on their own. We secure the permit and schedule each inspection through final.

How much clearance does a toilet need in Utah?

A toilet needs 15 inches from its center to any side wall, partition, or vanity; 30 inches center to center from an adjacent fixture; and 21 inches of open space in front of the bowl.

How far does a vanity sink need to be from a wall in Utah?

Utah's plumbing amendments set the center of a lavatory at least 12 inches from any side wall or partition, in place of the 15 inches the model code requires. They also call for a clear space 24 inches wide and 21 inches deep in front of the lavatory.

What is the minimum shower size in Utah?

A shower needs at least 900 square inches of interior area with no finished dimension under 30 inches. That makes 30 by 30 inches the smallest square shower the code allows. A shower may narrow to 25 inches when its area reaches 1,300 square inches, and its entry is at least 22 inches wide.

Do shower valves have to be anti-scald in Utah?

Yes. A shower or tub-shower valve is balanced-pressure, thermostatic, or both, with its maximum setting held to 120 degrees Fahrenheit. A tub filler without a shower has, or is supplied by, its own temperature-limiting device.

What is the maximum showerhead flow rate in Utah?

Utah's amendments cap a showerhead, hand-held sprays included, at 2 gallons per minute at 80 psi. A lavatory faucet is held to 1.5 gallons per minute at 60 psi.

Does a bathroom need an exhaust fan in Utah?

Yes, unless its windows have at least 3 square feet of glazing, half of it openable. A bathroom without that glazing needs a fan rated for at least 50 cfm intermittent or 20 cfm continuous, ducted directly outdoors, along with artificial light.

Can a bathroom fan vent into the attic?

No. The code bars discharging bathroom exhaust into an attic, a soffit, a ridge vent, or a crawl space. The duct ends at a wall or roof termination outdoors.

Does duct size matter for a bathroom fan?

Yes. Under Table M1504.2, a 4-inch flexible duct may run 56 feet on a 50 cfm fan but only 4 feet on an 80 cfm fan. Each elbow takes 15 feet off that allowance. We size the duct with the fan. The table does not limit a duct that follows the manufacturer's design criteria or whose installed airflow is measured.

Do bathroom outlets need GFCI protection?

Yes. Bathroom receptacles need ground-fault protection and a 20-amp circuit. Utah's amendments also prohibit a receptacle within or directly over a tub or shower.

Can you hang a chandelier over a bathtub?

Not inside the zone that extends 3 feet horizontally and 8 feet vertically from the tub rim, a zone that includes the space directly above the tub. A chandelier or pendant outside that zone is allowed. A recessed light over the tub, up to 8 feet above the rim, is rated for damp locations, or for wet locations where shower spray reaches it.

Does a whirlpool tub need its own circuit?

Yes. A whirlpool tub and its electrical components are supplied by an individual branch circuit protected by a readily accessible GFCI. The tub's pump also stays reachable through an access opening.

What waterproofing does a shower need in Utah?

A shower floor built on site is lined under the plumbing code, with a PVC or CPE liner or a bonded membrane meeting ANSI A118.10 among the approved choices. The lining is carried at least 2 inches past the rough jambs and above the threshold. The walls take a nonabsorbent finish to at least 6 feet over a tile backer the code names for wet areas.

Will remodeling my bathroom require new smoke alarms?

Yes, when the remodel needs a permit for more than exterior, plumbing, or mechanical work. Utah's code then calls for smoke alarms throughout the home in the locations required for new homes. Carbon monoxide alarms are added where the home has a fuel-fired appliance or an attached garage with an opening into the house, unless the permit covers only exterior work, plumbing work, or mechanical work that is not fuel fired.

How long does a bathroom remodel take?

It depends on the size of the room, whether plumbing moves, and when selections arrive. The schedule is set in writing during preconstruction, before demolition starts. Each weekly report measures the work against it through closeout.

Can we keep using the house during the remodel?

Yes. Dust barriers seal the bathroom off as a work area while the rest of the home stays in use.

What We Guarantee

Signature Guarantees

Our Signature Guarantees define a refined construction experience built on clarity, accountability, and disciplined execution from start to finish.

All four are written into every proposal we deliver.

Investment Certainty

The contractor's fee is fixed once the contract is signed and does not change through completion.

Schedule Certainty

Your project schedule is established upfront and actively managed through completion and closeout.

Same-Day Communication

Project-related messages receive a same-day response, keeping communication clear, timely, and accountable.

Progress Reports

Weekly reports, photos, and project updates are delivered directly to you throughout every phase of construction.

Related

Services and Areas Related to Bathroom Remodeling in Utah

How to Start

Request a Bathroom Consultation

Send the project details below to request a consultation.

  1. Send the Details Scope, address, and the schedule you have in mind.
  2. Set a Time A reply to arrange a visit to the property.
  3. Walk the Project A walkthrough, then a written scope, schedule, and estimate.
Phone
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Hours
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Based In
West Jordan, Utah
Allegiant Construction

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