Plumbing · UK estimating guide

How to estimate toilet replacement for a UK job

Plan the scope, check quantities and review an itemised toilet replacement estimate in pounds with a matching UK example PDF.

THE SHORT ANSWER

Price toilet replacement per fixture, with a distinct product allowance and an assumption about the existing connection. State how a damaged flange or floor will be reviewed if found during removal.

Use this fictional two standard toilet replacements in Leicester to plan the estimate. The agreed work is: Replace two customer-selected toilets at existing suitable floor connections. Include fixture allowance, removal, new seals and supply connectors, setting, basic leak check and disposal. No drain alteration, flange repair or flooring work. The matching toilet replacement example and PDF shows the same inputs. These quantities and rates are teaching examples; use your own site measurements, product selections, supplier information and labour figures for a customer job.

1. Identify each fixture

Record location, selected model and whether the customer or contractor supplies it. Two identical bathrooms can still have different access or existing conditions.

2. Inspect visible connection conditions

Note floor condition and any visible movement or leakage. The sample assumes suitable existing connections; unknown flange or subfloor repairs are a separate review point.

3. Keep parts and labour visible

List seals, connectors and setting labour separately from the toilet allowance. This prevents a product upgrade from silently changing the labour portion.

4. Define the completion check

Include a basic operation and visible leak check, clean-up and old-fixture handling. An estimate should not promise correction of unrelated drain problems.

Calculate the measured lines

The PDF uses 6 separate items. For example, Existing toilet removal is 2 each × £56.00 = £112.00; Toilet product allowance is 2 each × £220.00 = £440.00. Check that each unit describes the work being priced: area for a surface, metres for a run, and a count or defined lump sum for a discrete task. A material purchase allowance can differ from the installed quantity when product sizes, cuts or layout require it.

Adding the 6 rounded line amounts gives £1,076.00. The example PDF uses a 0% tax input and no markup; those settings do not determine how to price or treat an actual job. Do not copy the rates as a local price guide.

Check the scope before sending

  • List each bathroom and selected product.
  • Confirm existing connection assumptions.
  • Assign purchase and disposal responsibilities.
  • Document how discovered repairs are authorized.

Outside the base scope: No flange replacement, drain repair, subfloor or flooring repair, fixture relocation or concealed plumbing work.

Confirm the site address, selected products, access, quantities, customer details and validity date. If opening the work reveals a different condition, record the change and update the relevant line before asking the customer to approve the revised work. Preview every page of the PDF so the written scope, line amounts and total tell the same story.

Common questions

Should the toilet product be a separate line?

Yes when the selection may change. A separate allowance shows the product cost and leaves installation labour clear.

What if the flange is damaged?

Treat it as a changed condition: document the required repair and revise the scope and price before proceeding.

Preview of the Toilet replacement estimating guide example
Preview of the matching estimate PDF · View the matching example

FROM SITE NOTES TO AN ITEMISED PDF

Make your own toilet replacement estimate.

Enter the scope in Estimates on iPhone or Android, edit each quantity and rate in pounds, add your business and customer details, and review the PDF before sharing it.

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