Most homeowners budget for the things they’ll pick out — the vanity, the tile, the fixtures. Those are a minority of the cost. Labour is 40 to 60% of a bathroom remodel, and the single most expensive decision you can make isn’t a material at all: it’s whether the toilet moves. US ProPaint & Renovation quotes bathrooms at a fixed price with no allowances.
By JR Reis, Owner & President · Last updated October 2026
| Category | Share of budget | On a $20,000 remodel |
|---|---|---|
| Labour, all trades | 40 – 60% | $8,000 – $12,000 |
| Tile and countertops | 15 – 20% | $3,000 – $4,000 |
| Fixtures and hardware | 10 – 15% | $2,000 – $3,000 |
| Plumbing materials and rough-in | 5 – 10% | $1,000 – $2,000 |
The balance covers permits, disposal, floor and surface protection, and contingency.
So what’s the most expensive part of a bathroom remodel? Labour, by a wide margin — and it isn’t close. Among materials, tile is the largest line, not the vanity and not the fixtures.
The reason is density. A bathroom packs plumbing, electrical, waterproofing, tile, ventilation and carpentry into 35 to 60 square feet. Every one of those trades has to show up, work around the others, and pass inspection, in a room the size of a parking space. Cost per square foot in a bathroom runs higher than anywhere else in a house for exactly that reason — which is also why a small bathroom isn’t proportionally cheaper than a large one.
| Trade | Typical range |
|---|---|
| Demolition and disposal | $500 – $2,000 |
| Plumbing, rough-in and finish | $1,500 – $5,000 |
| Tile setting | $1,000 – $4,000 |
| Electrical | $500 – $2,500 |
| Carpentry | $500 – $1,500 |
Tile labour is the line people underestimate. A tile setter charges $10 to $25 per square foot for labour alone, and the format drives it more than the price of the tile does. Large-format porcelain in a simple layout sits at the bottom. Mosaic, herringbone, or anything requiring a lot of cuts sits at the top — and on a small bathroom it’s common for the labour to cost more than the tile.
It’s also the most visible thing to get wrong. Bad tile work is the mistake you look at every day, and correcting it costs more than doing it properly the first time.
Greater Boston trade rates run roughly 20 to 35% above the national average, so national cost guides consistently understate what this work costs here.
Worth knowing: our plumber and electrician are in house and licensed, so those two lines aren’t marked up through a subcontractor and the schedule doesn’t wait on someone else’s calendar.
Yes — moving the plumbing raises the price more than any other single decision, and the reason is where the drain lives.
| What you’re doing | Plumbing cost impact |
|---|---|
| Keeping every fixture in place | $500 – $1,500 — a swap |
| Moving the sink | $1,000 – $2,000 — supply and drain are in a wall |
| Moving the toilet or shower | $1,500 – $5,000 per fixture — the drain is in the floor |
| Adding a fixture where none existed | $2,500 – $5,000 for the plumbing portion alone |
Supply lines are easy. Drains are not. A sink drains through the wall, so relocating it is comparatively simple. A toilet and a shower drain through the floor — which means lifting the floor, rerouting waste lines between joists at the correct fall, and putting the floor back. That’s three trades instead of one.
It compounds in older housing stock. Opening a bathroom floor on the South Shore regularly turns up a subfloor that needs replacing, and in homes built before the mid-1970s, cast iron waste lines that can’t simply be cut into. Our bathroom remodel process guide covers what cast iron and galvanized plumbing mean for a remodel and why patching them badly makes things worse.
The practical takeaway: if the budget is tight, the highest-value decision available to you is leaving the toilet where it is. Keeping the layout and spending the difference on better tile, a better shower valve and proper waterproofing produces a better bathroom than moving fixtures and economising on everything else.
The difference isn’t floor area. It’s the wet area.
The tub or shower — with its tile, its waterproofing membrane, its drain and its valve — accounts for 30 to 40% of a full bathroom budget. A half bath doesn’t have one. That’s the whole explanation for the price gap, and it’s why the two aren’t on the same per-square-foot scale.
| Bathroom type | Rough cost multiplier | Typical mid-range |
|---|---|---|
| Half bath / powder room | 0.55× | $5,000 – $12,000 |
| Full bath | 1.0× | $15,000 – $25,000 |
| Primary / en suite | 1.75× | $30,000 and up |
And converting a half bath to a full one is not a half-bath price plus a shower. Adding a fixture where none existed means new supply lines, a new drain connection at the right fall, waterproofing, and ventilation that meets code — $2,500 to $5,000 for the plumbing before a single finish is chosen. Budget it as a new full bathroom, not an upgrade.
As a quick orientation — market ranges, not quotes:
Two companion pieces go deeper. For coastal properties, including the flood-zone rule that can reshape a budget along the shoreline, see our Hull bathroom cost guide. For how long it takes, what order the trades work in, and whether you can stay in the house, see our bathroom remodel process guide.
Here’s the part most cost guides won’t tell you: the most common reason a bathroom budget breaks isn’t a surprise behind the wall. It’s an allowance.
An allowance is a placeholder. The contract says “$2,500 tile allowance.” You go to the showroom, choose tile you actually like, and it comes to $4,200. That’s a change order. Then the same thing happens with the vanity, the shower valve, the glass, the flooring and the lighting. Six change orders later the project is 30% over a number you were told was the price.
Nothing improper has happened. The contract simply never was a price — it was a starting point with blanks in it.
We quote fixed price with no allowances. Selections get made before the contract is signed, so the number you sign is the number you pay. The only thing that changes it is genuine discovery behind a wall — rot, failed pipe, a subfloor that has to come out — and that gets handled as a written change order with a price attached before anyone proceeds.
What to do regardless of who you hire:
That last one is worth more than the other four combined.
Where we work: Hingham, Weymouth, Braintree, Quincy, Hull, Cohasset, Scituate and across the South Shore. Building here since 2004, Massachusetts Contractor License 186517, lead-safe certified, with free estimates and financing.
Full scope is on our bathroom renovation page, and finished work is in the gallery.
What does a bathroom remodel cost on the South Shore?
A cosmetic refresh runs $6,000 to $15,000, a mid-range remodel on the existing footprint $15,000 to $25,000, a full gut $18,000 to $35,000, and a gut with a layout change $30,000 or more. Half baths start lower at $5,000 to $12,000. Greater Boston trade rates sit 20 to 35% above the national average, so national cost guides understate this market.
Where does most of a bathroom remodel budget actually go?
Labour, at 40 to 60% of the total. Tile and countertops take 15 to 20%, fixtures and hardware 10 to 15%, and plumbing materials 5 to 10%. The things homeowners choose in a showroom are a minority of the cost — a bathroom concentrates six trades into 35 to 60 square feet, and that density is what drives the price.
Does moving the plumbing raise the price much?
Yes, more than any other single decision. Keeping fixtures in place makes plumbing a $500 to $1,500 swap. Moving a sink costs $1,000 to $2,000 because its supply and drain run through a wall. Moving a toilet or shower costs $1,500 to $5,000 per fixture because the drain is in the floor, which has to be opened, rerouted at the correct fall, and rebuilt.
How different is a half bath from a full bath on cost?
A half bath typically costs a little over half as much, and the reason is the wet area rather than the floor area. A tub or shower with its tile, waterproofing, drain and valve accounts for 30 to 40% of a full bathroom budget, and a half bath has none of it. Converting a half bath to a full one is not an upgrade — adding a fixture where none existed costs $2,500 to $5,000 in plumbing alone.
How do you keep a bathroom remodel on budget?
Make every material selection before signing the contract, ask whether the quote contains allowances and what happens when you exceed them, get the change-order process in writing, hold 10 to 15% as contingency for what’s behind the walls, and don’t move the toilet unless the layout genuinely fails. We quote fixed price with no allowances so the signed number is the paid number.
What is the most expensive part of a bathroom remodel?
Labour, at 40 to 60% of total cost. Among materials, tile is the largest line — a tile setter charges $10 to $25 per square foot in labour alone, and intricate formats like mosaic or herringbone can cost more to install than the tile costs to buy.
How much does a small bathroom remodel cost?
$15,000 to $25,000 for a mid-range remodel of a typical 5×7 or 5×8 bathroom. Small doesn’t mean proportionally cheap: the same six trades, the same inspections and the same waterproofing are required in less space, so cost per square foot runs higher in a small bathroom than a large one.
US ProPaint & Renovation
175 Derby St STE 4 Hingham, MA 02043
Phone: +1 (617) 922-6305
Toll Free: +1 (800) 964-0717
Email: office@uspropaint.com
Massachusetts Contractor
License 186517 · Lead-Safe Certified
Serving Hingham, Weymouth, Braintree, Quincy, Hull, Cohasset, Scituate, Norwell and the South Shore.
