A typical 5×8 bathroom remodel in the U.S. runs between $10,000 and $25,000 depending on finishes, and the single biggest driver of cost overruns is a layout change decided after demolition has already started. Get the layout, budget, and sequence locked in before a single tile is ordered, and the rest of the project runs far more predictably.
Lock the layout before you pick a single fixture
Keeping the toilet, sink, and shower or tub in their existing locations is the cheapest option because the drain lines, vent stack, and supply lines stay put. Moving a toilet even 3 feet can mean cutting into a concrete slab or relocating a drain within joist bays, which easily adds $1,500 to $4,000 to a project. If you’re on a slab foundation, moving plumbing gets significantly more expensive because it involves jackhammering concrete.
Before you think about tile or vanity style, check these clearances, which most local codes follow closely:
- 30 inches of clear floor space in front of the toilet, measured from the front of the bowl
- 15 inches minimum from the center of the toilet to any wall or fixture on each side, 18 inches is more comfortable
- 21 inches of clear floor space in front of the vanity and shower
- 32 inches minimum shower door opening, 34 inches for a curbless entry
Sketch your layout to scale, even a simple graph-paper drawing works, and confirm door swing doesn’t collide with a vanity edge or towel bar. Small errors here get expensive to fix once tile is set.
Build a budget with real numbers, not guesses
Labor typically eats 40% to 65% of a bathroom remodel budget, which surprises people who assume tile and fixtures are the main expense. A rough breakdown for a $18,000 mid-range remodel looks like this: $7,000 to $9,000 labor, $3,000 to $5,000 tile and flooring materials, $2,000 to $3,000 vanity and countertop, $1,500 to $2,500 plumbing fixtures (tub, shower valve, toilet, faucet), $1,000 lighting and electrical, and $1,000 to $1,500 for paint, trim, and miscellaneous.
Set aside 10% to 20% of the total budget as contingency. Older homes almost always reveal something once walls open up: rotted subfloor under a toilet flange, outdated wiring not up to code, or a shower pan that’s been leaking into the subfloor for years without visible signs. A $20,000 budget with no contingency isn’t really a $20,000 budget.
Get itemized quotes, not lump-sum numbers, from at least three contractors. An itemized quote lets you see where the money goes and makes it possible to swap a $40-per-square-foot tile for a $12-per-square-foot tile without renegotiating the entire contract.
The work sequence that prevents costly rework
Bathroom remodels fail on timeline and budget most often because steps happen out of order. The correct sequence, followed by most experienced contractors, looks like this:
- Demo: remove old fixtures, flooring, and any wall sections being changed
- Rough-in plumbing and electrical: move or add supply lines, drains, and wiring for outlets, lighting, and the exhaust fan
- Rough-in inspection by the local building department, before anything gets covered
- Framing adjustments, insulation in exterior walls, then drywall or cement board
- Waterproofing in the shower or tub surround, using a sheet membrane or liquid-applied product like RedGard
- Tile: floor first, then walls, then shower niche and bench details
- Install vanity, toilet, and fixtures
- Paint and trim
- Final plumbing and electrical hookups, then final inspection
The order of tile matters more than people expect. Setting floor tile first lets it run under the vanity and toilet flange cleanly. Waterproofing has to be fully cured and often pressure-tested before tile goes over it, since a failed shower pan means tearing out tile to fix a leak later.
Permits and inspections you shouldn’t skip
Most jurisdictions require a permit for any project involving moved plumbing, new electrical circuits, or structural changes, even in a small bathroom. Skipping the permit can cause problems at resale, since a buyer’s inspector or appraiser may flag unpermitted plumbing or electrical work, and some insurance claims get denied if the damage traces back to unpermitted modifications.
Two inspections matter most: the rough-in inspection, done after plumbing and electrical are run but before drywall goes up, and the final inspection, done after everything is installed and functional. GFCI protection is required on all bathroom outlets, and the exhaust fan needs to vent to the exterior, not into an attic space, which is a common code violation in older remodels.
Timeline expectations and ordering materials early
A full bathroom remodel typically takes 3 to 6 weeks from demo to final walkthrough, longer if custom cabinetry or special-order tile is involved. Tile, vanities, and plumbing fixtures should be ordered before demo starts, not after. A popular tile pattern going on backorder for six weeks in the middle of a project is one of the most common causes of delay, and it stalls every trade waiting to install it.
Vanity and faucet spec sheets should go to your
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