Reports & profitability
Plumbing Estimate Conversion Rate: Define the Denominator
Define which estimates belong in the calculation before reporting a conversion rate. Accepted estimates divided by decided estimates measures the win rate among known outcomes; accepted estimates divided by all estimates in a cohort answers a different question when some remain open.
In this guide
Choose a consistent estimate cohort
A cohort is a defined group, such as estimates first sent during a particular month. Use the original estimate identifier and decide how revised versions are handled so one opportunity is not counted repeatedly.
Exclude test records, duplicates, and withdrawn drafts that were never offered. Document how you classify canceled requests, expired offers, and jobs that were no longer needed.
Keep open estimates visible. Do not label an unanswered estimate lost solely to make the report easier to calculate.
Distinguish two useful rates
| Measure | Formula | What it tells you |
|---|---|---|
| Win rate among decided estimates | Accepted ÷ accepted plus lost | Share of known decisions that were accepted |
| Accepted share of the full cohort | Accepted ÷ all included estimates | How much of the cohort is accepted so far |
The first rate excludes open outcomes. The second includes them in the denominator and may change as customers decide. Neither should be reported without its definition and an as-of date.
Use the decided-estimate calculator
Enter accepted and lost estimates from the same defined cohort. Open estimates are not included in this calculator. With no decided estimates, the rate is unavailable rather than zero.
In a fictional cohort of 30 estimates, suppose 12 are accepted, eight are lost, and ten remain open. The decided-estimate win rate is 12 ÷ 20 = 60%. The accepted share of the entire cohort is 12 ÷ 30 = 40%.
Those figures do not conflict. They answer different questions, and the open group still requires follow-up or later review.
Do not confuse count with value
Winning several small jobs can produce a high count-based rate while a large estimate remains unresolved. A value-based view can be useful, but define which estimate amount is used and how revisions affect it.
Do not add all revised estimate versions together. Do not treat accepted value as money collected. The work, invoicing, and payment stages remain separate.
A small sample can also move sharply after one decision. Show the numerator and denominator alongside the percentage.
Compare like with like
Compare similar service categories, lead types, and time-to-decision windows. A recent cohort with many open estimates should not be treated as directly comparable to an older fully decided cohort without explanation.
Do not adopt an unsupported industry target as a diagnosis of your business. Investigate changes using your own records and the reasons customers actually provide.
Turn the report into a review action
Estimate conversion review
Cohort definition: [dates and inclusion rule]
As-of date: [date]
Accepted / lost / open: [counts]
Decided-estimate rate: [calculation]
Accepted share of full cohort: [calculation]
Important sample or classification limits: [notes]
Follow-up or process action: [owner and task]
GoPlumber's estimate records can be evaluated as an input to this review. This article supplies a measurement definition and calculator, not a promise that this exact cohort report exists natively in the product.
Sources and editorial notes
Product and documentation references checked September 29, 2026. GoPlumber publishes this guide about its own product category. Examples and templates are original illustrative material, not customer case studies or market benchmarks. Confirm current vendor terms before acting.