How to Quote a Tile Shower From Substrate to Finish

A shower can look ready for tile while the framing, drain and waterproofing details are still unknown. Learning how to quote a tile shower means pricing the complete assembly, not multiplying wall area by a square-foot rate.

Inspect first. Separate each operation. Write down what happens if demolition exposes work you could not see.

Start by defining the complete shower scope

Choose the work before you measure or price it. A tile shower may involve demolition, framing correction, board installation, waterproofing, tile setting, grouting, sealant and cleanup. These are separate operations with separate risks.

Break the scope into clear sections:

• Protect the route from the entrance to the bathroom.
• Remove the existing surround, base, board or tile within stated limits.
• Load, transport and dispose of debris.
• Inspect the exposed framing and drain area.
• Complete the specified substrate preparation.
• Install the waterproofing assembly.
• Set tile on each listed surface.
• Finish edges, grout joints and changes of plane.
• Clean the work and complete deficiencies.

Record who supplies the tile, drain, trims, grout, sealant and waterproofing components. For customer-supplied tile, state who checks the ordered quantity, condition and compatibility before installation. Say that late, missing, damaged or incompatible material may change the schedule and that extra labour or a return visit requires an approved change order.

Identify plumbing, electrical and glass work as separate handoffs. Price a subtrade only after confirming its scope and cost. If you carry an allowance, state the included amount and how the confirmed cost will be reconciled in writing. Otherwise, exclude the subtrade and add it later through an approved change order.

Why an average shower price is not a usable quote

There is no defensible average price you can copy onto an inspected shower. The finish area does not tell you whether the framing is straight, the drain is suitable, the walls are flat or the selected tile needs slow cutting and detailed alignment.

Build the price from the job in front of you. Use current supplier costs, your own loaded labour cost, confirmed subtrade prices, overhead and markup.

The main cost drivers are concrete:

• What must be removed.
• What can be inspected before demolition.
• Whether framing or board needs correction.
• Which surfaces need waterproofing.
• Tile material, module, thickness and fragility.
• Straight, diagonal, centred, directional or patterned layout.
• Niches, benches, curbs, shelves, jambs and returns.
• Finished edges and transitions to other surfaces.
• Access, parking, stairs and debris handling.
• Plumbing, electrical, glass and inspection handoffs.

A generic area rate hides these decisions. Price the operations instead.

Inspect the substrate before fixing the price

Start with what you can see. Record the existing finish, wall condition, floor condition, drain position, fixtures, access and signs of movement or moisture. Take photographs that show the whole shower and close views of damaged areas.

State the demolition limit. Removing tile only is different from removing tile, board and the shower base. Do not promise a fixed rebuilding price based on a concealed assembly you have not inspected.

Check the framing or existing board for:

• Flatness across each tiled plane.
• Plumb at walls, jambs and outside edges.
• Square corners where the layout depends on them.
• Solid backing at trims, fixtures, glass and accessories.
• Movement, damaged board or loose fasteners.
• Drain location and the condition visible around it.
• Enough space for the proposed board, waterproofing and tile build-up.

Define tiling preparation costs as actual operations. List demolition, assessment, framing correction, board installation, flattening, patching, cleaning and priming separately when they apply.

Do not write “basic preparation included” and hope both parties mean the same thing. State the limit. For example, you can include cleaning and minor surface filling while excluding framing correction, structural repair and replacement of concealed damaged material.

The old surround may come off and expose framing that is out of plane. Stop there. Photograph it. Describe the correction. Price a change order and get approval before covering the work.

Measure every tiled face and set the wastage allowance

Make a takeoff line for every plane or detail. Record its length, width, tile direction and exposed edges. Keep the shower floor separate from the walls because the tile, cuts, slope and drain work may differ.

Measure:

• Each main wall.
• The shower floor.
• Curb top, inside face and outside face.
• Door jambs and returns.
• Niche back, sides, top and sill.
• Bench top, face and sides.
• Shelves and ledges.
• Outside edges that need trim or finished tile.

Calculate the area of each face. Break irregular faces into shapes you can measure, then total only the faces using the same tile. Keep field tile, mosaics, trim pieces and other materials on separate takeoff lines.

Confirm the actual tile dimensions and not just the nominal description. Record its orientation, pattern, face variation, grout-joint plan and intended alignment with the drain, niche, bench and outside edges.

Apply the planned layout and cuts to each material total. Count special pieces where area does not describe the order properly. Then convert the required quantity into the supplier’s purchase units, whether the material is sold by piece, sheet or box. Use the supplier’s stated coverage and round up to a purchasable unit rather than copying a wastage percentage from another job.

Build the tile wastage allowance around edge cuts, centred layouts, directional patterns, veining, shade matching, fragile pieces and replacement stock requested at handover. Porcelain, stone, glass, mosaics and large-format tile do not create the same cutting, handling or alignment work.

Keep wastage visible as a quantity decision. Do not use it to hide poor measurement or an unfinished design.

Deduct an opening only when it creates a real saving. A niche opening removes part of the field tile, but the niche adds several small tiled faces, waterproofed corners, cuts and finished edges. Less net area can still mean more labour.

Sketch the tile start points, centre lines and feature alignment. Mark valves, shower arms, drains and glass positions. These details affect cuts even though they barely change the measured area.

Use the 3/4/5 rule as a site check, not a price

From the same corner, mark proportional lengths of 3 and 4 along the adjoining sides, using the same unit or the same multiple for both. Measure and record the diagonal between those marks; a diagonal of 5 identifies a right angle.

The check does not show whether a wall is plumb or whether its face is flat. Record the measured diagonal, then price the actual layout work or substrate correction shown by that check.

Can I quote before the customer selects the tile?

You can price the defined preparation and waterproofing scope. Treat tile quantity, setting labour and edge finishing as an estimate or allowance until the product, dimensions, layout and edge treatment are confirmed.

Do not fix labour for a straight layout and quietly absorb a later patterned selection. Set an approval point for the tile and layout before ordering material or finalizing the installation price.

Write the waterproofing quote scope before pricing it

Tile is the finish. Waterproofing is the assembly behind it. The quote must say where that assembly starts, where it stops and who owns every transition.

Your waterproofing quote scope should identify:

• The included walls and shower floor.
• Curb, niche, bench, shelf and return surfaces.
• Corners, seams, fasteners and changes of plane.
• Valve, pipe and fixture penetrations.
• Required falls across the shower base and other draining surfaces.
• Drain elevation in relation to the finished tile and waterproofing build-up.
• The visible condition of the drain-to-membrane connection.
• Connections to adjoining floors and walls.
• Compatible board, membranes, tapes, corners and sealants.
• Required waiting periods before the next operation.
• Any test, inspection or hold point and who arranges it.

State who prepares the shower base. State who supplies, connects or relocates the drain. If plumbing work belongs to another contractor, show the handoff and the condition required before your waterproofing starts.

Record the selected waterproofing system and keep its written installation requirements with the quote file. Before committing to the assembly, ask the municipality, as the local authority having jurisdiction, whether it requires a permit, inspection, test or hold point for the planned work.

Do the same at niches, benches and curbs. A feature added after acceptance changes more than tile area. It changes backing, falls, corners, waterproofing, cutting and edge finishing.

How to quote a tile shower labour plan by operation

Area helps with the takeoff, but labour belongs against operations. Create labour lines for the work your crew will perform.

Protection, demolition and debris

Include site protection, fixture protection, dust control, removal, loading, disposal and final cleaning of the route. Record access restrictions that slow handling.

Substrate preparation

Estimate inspection after demolition, framing correction within the quoted limit, backing, board installation, flattening, patching, cleaning and priming. Separate uncertain repairs from known preparation.

Waterproofing

Include each coat, sheet, seam, corner, penetration and drain transition required by the selected assembly. Waiting time may affect the schedule even when it is not active labour. Plan return visits and hold points instead of pretending the crew can tile immediately.

Layout, cutting and setting

Allow time to establish lines, dry-plan critical areas, mix material, cut tile, drill penetrations, set pieces and clean joints. Add labour for patterns, directional tile, mosaics, large pieces and alignment through niches or around fixtures.

Edge finishing

Price trims, mitres, polished edges and transitions as their own work. Small edges can take more time than a broad wall.

Grout, sealant and deficiencies

Include joint cleaning, grouting, movement-joint sealant, final cleaning and correction of listed deficiencies. State whether sealing a specified tile or grout is included.

Use your completed-job records to estimate time. Memory rounds difficult work down.

Price labour, materials, overhead and markup

Start with direct labour. Multiply the estimated crew-hours for each operation by your loaded cost per crew-hour. Crew-hours mean total worker-hours, not elapsed site time.

Build the direct-cost estimate in a worksheet like this:

Extend the material takeoff using current supplier costs. Include tile you supply, setting materials, board, waterproofing components, trims, grout, sealant, protection, delivery and disposal where they belong.

Add confirmed subcontractor costs. Do not guess at plumbing, electrical or glass work and present the guess as fixed.

Add overhead after calculating direct costs unless your business deliberately allocates overhead by operation. Then apply markup to the resulting cost. Use the same method from one job to the next.

Markup is what you add to cost to make the selling price. Margin is the profit as a share of the selling price. They are not interchangeable.

The Oak Street house example is electrical, but the calculation applies to tile work. All figures are sample currency units, not Canadian rates. Quote Q-1847 was 1,105 and the original job cost was 850, so profit against the quote was 255. Margin was 255 ÷ 1,105, or about 23%, while markup was 255 ÷ 850, or 30%.

Use the job-pricing framework to check the order of labour, materials, overhead and markup without inventing a square-foot rate.

Turn unknown conditions into change-order triggers

Write the assumptions supporting the fixed price. State what you believe is behind the existing finish and which corrections are included. Then name the conditions that stop the work and trigger a new price.

Useful triggers include concealed damage, mould, rot, structural movement, major framing correction, unsuitable drain conditions and a customer design change. Do not bury those risks inside an unexplained contingency.

Separate upgrades from concealed repairs. A patterned tile, added niche or changed edge finish is a selectable scope change. Damaged framing found after demolition is an unknown condition. Both need written approval, but the record should show why each change happened.

If the job changes, stop. Record the condition, labour, materials, schedule effect and revised price. Get acceptance before proceeding. The same document control used in the Canadian contractor change-order guide applies even though that guide uses an electrical job.

Worked example: keep changed work separate

The Oak Street house example is electrical, but its document control applies to tile work. All figures are sample currency units, not Canadian rates.

R. Chen at 14 Oak Street received quote Q-1847 for 1,105. Extra cable and chasing were approved as a 160 change order, making invoice INV-1847 total 1,265.

Put the inspected scope into the quote

The customer should be able to see what is being built. Name the room, shower, tiled surfaces, selected materials and layout. Attach the drawing or marked photograph used for the takeoff when it resolves an edge or transition.

List inclusions by operation. Then list exclusions, customer responsibilities and subtrade handoffs. Set approval points for tile selection, layout, trims, fixtures and changes.

State the quote validity, payment terms and tax treatment used by your business. Check GST/HST treatment with the Canada Revenue Agency (opens in a new tab) rather than copying it from another contractor’s quote.

Copy-ready shower scope skeleton

This skeleton organizes the scope. It is not a complete Canadian contract. Required terms can vary by province and project, so check the rules with the provincial consumer or contractor regulator for the job location. For an Ontario project, check contract requirements with Consumer Protection Ontario (opens in a new tab).

SHOWER QUOTE SCOPE

Customer and site: [name and address]
Quote number and date: [details]
Quote validity: [period]

DESIGN
Tile, layout and grout: [details]
Edges and transitions: [details]

SCOPE
Tiled surfaces: [walls, floor, curb, niche, bench and returns]
Demolition and preparation: [work and limits]
Waterproofing: [surfaces, details and handoffs]
Installation and finishing: [setting, grout, sealant and cleanup]

MATERIAL RESPONSIBILITY
Contractor-supplied: [items]
Customer-supplied: [items]
Quantity, condition and compatibility check: [responsible party]
Late or defective material: [schedule and change-order rule]

ASSUMPTIONS AND EXCLUSIONS
Concealed substrate and drain: [assumptions]
Excluded repairs and subtrade work: [details]
Change-order triggers: [conditions]

PRICE AND TERMS
Quote total: [amount]
Tax treatment: [details]
Payment terms: [details]

APPROVAL
Customer, acceptance and date: [details]

Close the job with cost tracking by phase

Record actual labour against demolition, preparation, waterproofing, setting and finishing. A total tells you whether the whole job ran long. Phase records tell you where the quote failed.

Record material purchased, used, returned and retained. Keep replacement tile separate from waste. Match supplier documents and subcontractor invoices to the job.

Keep approved change-order work separate from the original scope. That separation is part of how to quote a tile shower from your own figures instead of letting later repairs hide an underquoted phase.

Use the guide to cost tracking from contractor records to compare quoted and actual costs without mixing the original scope with later changes.