# What to include in a shower base replacement quote

Shower base replacement: Measure the finished opening, threshold, drain offset and surround overlap before ordering a base. See itemized costs, scope boundaries and a matching app PDF.

Canonical: https://quicklyestimates.com/en-us/guides/how-to-estimate-shower-base-replacement/
Author: Estimates editorial team
Published: 2026-09-25
Updated: 2026-09-25

For one existing shower footprint, start with a defined scope and measurement basis. Measure the finished opening, threshold, drain offset and surround overlap before ordering a base. Identify the base, waste assembly and any wall-repair allowance separately. Price the listed tasks separately and state the condition that would require a revision: Wet subfloor or incompatible drain geometry is a change trigger after removal.

THE ESTIMATING ANSWER

For one existing shower footprint, start with a defined scope and measurement basis. Measure the finished opening, threshold, drain offset and surround overlap before ordering a base. Identify the base, waste assembly and any wall-repair allowance separately. Price the listed tasks separately and state the condition that would require a revision: Wet subfloor or incompatible drain geometry is a change trigger after removal.

This guide uses one existing shower footprint as a worked, fictional job. Its matching itemized estimate and PDF (https://quicklyestimates.com/en-us/samples/shower-base-replacement-estimate/) let you trace the advice to actual document lines. The role considered here is remodeler. Confirm the site conditions, product selections and your own costs before preparing a client quote.

1. Define the measured job

Remove a leaking shower base and install a selected new base in the existing enclosure footprint, reconnecting to a suitable drain. Retain sound wall finishes where possible. Measure the finished opening, threshold, drain offset and surround overlap before ordering a base. Record the measurements and existing condition in the estimate before turning quantities into line items. The scope should make clear why this is a separate project from a broader renovation or maintenance quote.

Measurement basis: Measure the finished opening, threshold, drain offset and surround overlap before ordering a base.

2. Build a product and labor schedule

Identify the base, waste assembly and any wall-repair allowance separately. This example has 7 distinct lines, including protection and enclosure removal, old base removal, new base allowance. Use actual supplier prices and labor inputs for a customer job; the displayed amounts are fictional document inputs.

Selections to confirm: Identify the base, waste assembly and any wall-repair allowance separately.

3. Sequence the work and handoffs

Sequence enclosure removal, base inspection, waterproofing and reinstatement so each trade knows the handoff. Show which task depends on access, a selected product or another trade. If that dependency is still open, label the price preliminary and identify the information needed before a firm quote.

Work sequence: Sequence enclosure removal, base inspection, waterproofing and reinstatement so each trade knows the handoff.

4. Set a change boundary

Wet subfloor or incompatible drain geometry is a change trigger after removal. The example excludes full shower wall rebuild, structural floor repair or fixture relocation. Record the discovery, agree the revised work and update the estimate before adding it to the job.

If the job changes: Wet subfloor or incompatible drain geometry is a change trigger after removal.

Worked project calculation

The example line for protection and enclosure removal is 1 job × $180.00 = $180.00. This line is one part of the complete 7-item estimate and uses a fictional unit rate.

The paired estimate has 7 separate lines. For this fictional job, multiply each quantity by its unit price and add the line amounts to get $2,085.00 . The sample PDF uses these exact values, with tax and markup left at zero so the arithmetic is visible. This total is an illustration, not a regional price or an offer to perform the work.

Shower base replacement estimating inputs — USD Cost line | Quantity | Unit price | Line amount |

Protection and enclosure removal | 1 job | $180.00 | $180.00 |

Old base removal | 1 each | $250.00 | $250.00 |

New base allowance | 1 each | $680.00 | $680.00 |

Waste connection allowance | 1 set | $140.00 | $140.00 |

Base fitting labor | 1 each | $430.00 | $430.00 |

Perimeter waterproofing and seal | 1 job | $260.00 | $260.00 |

Cleanup and disposal | 1 job | $145.00 | $145.00 |

Illustrative subtotal | $2,085.00 |

Scope and pricing boundaries

Remove a leaking shower base and install a selected new base in the existing enclosure footprint, reconnecting to a suitable drain. Retain sound wall finishes where possible.

Outside this example: No full shower wall rebuild, structural floor repair or fixture relocation.

Separately identify supplier allowances, labor, subcontracted work and site-specific risk where they apply. Before giving a selling price, decide how your own overhead, profit and any applicable tax will be handled. Do not copy the fictional rates into a real quote without checking your own measurements and supplier or subcontractor figures.

Before you send the estimate

- Measure the finished opening, threshold, drain offset and surround overlap before ordering a base.
- Identify the base, waste assembly and any wall-repair allowance separately.
- Sequence enclosure removal, base inspection, waterproofing and reinstatement so each trade knows the handoff.
- Wet subfloor or incompatible drain geometry is a change trigger after removal.

Read the complete shower base replacement PDF example (https://quicklyestimates.com/en-us/samples/shower-base-replacement-estimate/) to see how the scope, individual prices and exclusions appear in a client-facing document. If a condition is still unknown, write that boundary into your estimate and revise the affected line once it is resolved.

Questions about this estimate

Which quantity controls this shower base replacement estimate?

Measure the finished opening, threshold, drain offset and surround overlap before ordering a base.

When should this shower base replacement quote be revised?

Wet subfloor or incompatible drain geometry is a change trigger after removal. No full shower wall rebuild, structural floor repair or fixture relocation.

(https://quicklyestimates.com/en-us/samples/shower-base-replacement-estimate/) First page of a fictional shower base replacement estimate PDF · View the matching example (https://quicklyestimates.com/en-us/samples/shower-base-replacement-estimate/)

TURN THIS EXAMPLE INTO YOUR OWN ESTIMATE

Build a shower base replacement estimate for your project

Use Estimates on iPhone or Android to draft a scope with AI assistance or enter each line yourself. Review quantities, rates, exclusions, and client details before exporting a PDF. The example is free to inspect; some app features may require an in-app purchase.

Create an estimate ↗ (https://quicklyestimates.com/en-us/download/)Open the itemized PDF example → (https://quicklyestimates.com/en-us/samples/shower-base-replacement-estimate/)

Continue with a related estimate

- Shower base replacement labor and materials estimate example (https://quicklyestimates.com/en-us/samples/shower-base-replacement-estimate/)
- Shower wall tiling estimate example (https://quicklyestimates.com/en-us/samples/shower-wall-tiling-estimate/)
- Create your first contractor estimate (https://quicklyestimates.com/en-us/guides/create-a-contractor-estimate/)

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