How to Estimate a Tile Job (Step by Step)

Measure the real area, then inspect the substrate

Floors and walls measure in square feet; shower walls are three separate rectangles plus the pan or floor; backsplashes are length times height minus the window. Count the linear feet of edges, niches, and outside corners too — trim and edge profiles are priced by the foot, not the square foot.

Then look under the existing surface. Tile is only as good as what it is stuck to, so the estimate depends on the substrate: a sound, flat slab is one job; a bouncy floor that needs cement board or an uncoupling membrane is another; a rotted shower is a remodel. State on the estimate what substrate condition the price assumes, and how concealed damage is handled when demo reveals it.

Waterproofing is its own line in wet areas

Tile and grout are not waterproof — the system behind them is. Showers and wet areas need a membrane, sheet or liquid, with corners, seams, niches, and the valve and head penetrations sealed. Price it as its own line with the method named. Customers never see it and it is the most important line on the estimate.

This is also the line competitors cut to look cheaper. Itemizing it lets you explain the difference instead of matching a price that quietly omits the part that prevents the leak.

Price the tile from coverage, waste, and the pattern

Tile is priced from the area plus a waste allowance, and the allowance is a decision, not a habit: straight-laid large-format tile on a square room wastes little; diagonal layouts, herringbone, mosaics, and rooms full of cuts waste more. Confirm the actual tile before finalizing — customers pick tile after the quote surprisingly often, and the tile choice changes both material cost and labor.

Do not forget the setting materials: thinset matched to the tile and substrate, grout by type, edge profiles, sealers where the material needs them. Each is a small line; together they are real money, and they belong on the estimate.

Labor follows the tile, not just the square footage

Track your own production by tile type and build labor from that history. A number borrowed from a different tile on a different room is how good tilers end up working weekends for free. How to price labor covers building labor prices from your own rates.

• Large-format tile: slower, needs flatter substrate, often two-person handling and leveling systems
• Small mosaics and intricate patterns: many cuts, slow going, priced accordingly
• Diagonal or offset layouts: more cuts, more layout time than straight lay
• Niches, benches, and curbs: each is detail carpentry plus tile — price them as units
• Demo and disposal of the old surface: hours plus dump cost, stated plainly

What the customer should see

The estimate should show area by zone, substrate prep assumed, waterproofing method, the tile named or an allowance stated, setting materials, edge profiles, demo and disposal, and the timeline reality — tile work has cure times, so 'three days on site' is more honest than pretending a shower is a day. Note what the customer supplies versus what you supply.

EstimateBook can draft all of this from voice notes while you are still at the house — measurements, layers, allowances — and send a PDF before you leave. Review every drafted line against your notes first; the draft is a starting point, and the tape measure is the authority.