An illustrative $28,000 bathroom budget
This hypothetical standard-bathroom example retains the layout and replaces most finishes and fixtures. It is an allocation exercise, not a quote, measured local average or a record of work performed by 518 Bathrooms. Individual contractors may group the same work differently.
| Scope | Illustrative allocation |
|---|---|
| Protection, demolition and disposal | $2,000 |
| Plumbing rough-in and fixture installation | $3,500 |
| Electrical and ventilation | $1,800 |
| Preparation, waterproofing and tile installation | $7,500 |
| Tub or shower components and glass | $3,200 |
| Vanity, top and faucet | $2,500 |
| Toilet and accessories | $1,000 |
| Wall repairs, paint and trim | $1,500 |
| Coordination, overhead and margin | $5,000 |
| Total before separately excluded costs and reserve | $28,000 |
Protection, demolition and disposal
Ask whether the contractor protects the access route, isolates the work area, removes old materials and pays disposal charges. Multiple tile layers or difficult stair access can change the effort. Demolition is also the point where previously hidden damage becomes visible.
Document the condition of adjacent rooms before work starts. Decide where tools and materials will be staged, how debris leaves the property and whether a dumpster or other container needs local permission. Those arrangements affect household disruption as well as the proposal.
Wet-area preparation and tile
A shower price should describe the substrate, waterproofing system, drain connection, tile scope and treatment of penetrations. Tile and grout are finish materials; the assembly behind them matters. A quote that names only the tile leaves essential work undefined.
Measure floor and wall areas separately. A small bathroom can have more wall tile than floor tile, especially when the shower is tiled to the ceiling. Niches, benches, diagonal layouts and small mosaics add cuts and detailing. Large tile may demand additional surface preparation even when it looks simpler.
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Separate reconnecting fixtures from moving drains, supply lines or vents. Keeping the toilet in place usually limits the amount of floor and framing work. A new shower valve may require opening the wall, while an accessible vanity shutoff may be a smaller task. Existing condition matters in both cases.
Electrical scope should identify lighting, receptacles, fan replacement or duct changes, and any new circuit work. Ask the appropriate trade to determine what the design requires. Do not assume that a new fan solves moisture problems if its duct route or discharge point remains unsuitable.
Materials and allowances
An allowance is a placeholder, not a product specification. Ask whether it covers material only, sales tax, delivery and installation. Then compare the allowance with actual products you are willing to buy. A $500 tile allowance and a $1,500 tile selection create a budget change before any labor changes are considered.
Record who orders each product and who is responsible for returns, defects or missing pieces. Owner-supplied materials may appear cheaper, but delayed deliveries can disrupt scheduled labor. Confirm quantities and compatibility with the installer before ordering.
Labor is embedded in many categories
Do not add a generic labor percentage to an installed quote. Plumbing, tile and cabinet installation may already include it. Similarly, overhead and profit can be embedded in each line rather than listed separately. The comparison should focus on complete price and responsibilities, not forcing every contractor into the same accounting format.
A contractor coordinating multiple trades may charge more than separate material and hourly figures suggest. That price can include scheduling, supervision, warranty administration and the risk of performing a defined scope. Ask what coordination is included rather than treating all non-material dollars as interchangeable labor.
The questions to ask before signing
Keep a separate reserve for unknown conditions. On a $28,000 scope, a 15% reserve is $4,200, giving a working amount of $32,200 before other exclusions. This is a planning choice, not a guarantee that hidden repairs will fit the reserve.
Compare the base proposal and each optional upgrade in a simple worksheet. One contractor may include a tiled shower while another assumes a panel system. Resolve that difference before choosing based on the bottom line. The lowest comparable price can only be identified after the scopes match.
- Are permits, inspections, design and sales tax included?
- Are damaged subfloors, framing and old drains excluded or covered by an allowance?
- Is shower glass included, and when is it measured?
- Does painting include patched areas outside the bathroom?
- What is the written change-order process, including schedule effects?
- What final inspections and closeout documents will be supplied?
Frequently asked questions
Should every contractor break out profit?
Not necessarily. A complete fixed-price scope can be valid without disclosing internal margins. What matters is clarity about the work, allowances, exclusions and total price.
Can I add all the component ranges together?
No. Installed component ranges often overlap. Use a coordinated scope to avoid counting plumbing, demolition or tile installation twice.