THE ESTIMATING ANSWER
For one concealed shower valve, start with a defined scope and measurement basis. Record valve type, pipe access, wall finish and shutoff location before pricing opening and repair. Keep valve product, connection parts and wall finishing separate. Price the listed tasks separately and state the condition that would require a revision: Incompatible piping or failed waterproofing changes the repair scope.
This guide uses a fictional project in Hamilton, Ontario: One concealed shower valve. Its matching estimate and PDF give each scope decision a visible CAD cost line. Use the document to understand the structure; verify the actual building, product schedule, labour and supplier inputs before preparing a client quote.
1. Define the measured job
Replace one shower mixing valve at an accessible wall opening, with selected valve, connection allowance and wall closure. Record valve type, pipe access, wall finish and shutoff location before pricing opening and repair. 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: Record valve type, pipe access, wall finish and shutoff location before pricing opening and repair.
2. Build a product and labour schedule
Keep valve product, connection parts and wall finishing separate. This example has 7 distinct lines, including site and shutoff check, wall access opening, valve product allowance. Use actual supplier prices and labour inputs for a customer job; the displayed amounts are fictional document inputs.
Selections to confirm: Keep valve product, connection parts and wall finishing separate.
3. Sequence the work and handoffs
Confirm shutoff, open the smallest workable access and pressure-test before closing the wall. 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: Confirm shutoff, open the smallest workable access and pressure-test before closing the wall.
4. Set a change boundary
Incompatible piping or failed waterproofing changes the repair scope. The example excludes full shower rebuild, pipe reroute or concealed leak remediation. Record the discovery, agree the revised work and update the estimate before adding it to the job.
If the job changes: Incompatible piping or failed waterproofing changes the repair scope.
Review the Canadian job address
Verify the existing water, waste and fixture connections on site. Confirm who handles any required trade work, approvals and inspections for this address; this fictional document does not decide them.
Count the actual units, site visits and selected products separately. A count in this example is a document input, not a substitute for inspecting the real property. The example amounts are fictional CAD document inputs, not current rates for Hamilton, Ontario or another community. A site visit and current supplier information are needed to replace them.
Work through the itemized calculation
Check each extension of quantity and rate in the paired PDF. Two lines from this project are:
- Valve product allowance: 1 each × C$400.00 = C$400.00.
- Connection parts allowance: 1 set × C$155.00 = C$155.00.
Adding all 7 rounded line amounts gives C$1,925.00. The PDF shows 0% tax and the same total before any markup. The sample shows 0% tax only to make the arithmetic visible. Determine any applicable GST, HST or PST and markup for the actual work before sharing a quote.
| Work item | Quantity | Unit rate | Amount |
|---|---|---|---|
| Site and shutoff check | 1 job | C$175.00 | C$175.00 |
| Wall access opening | 1 job | C$240.00 | C$240.00 |
| Valve product allowance | 1 each | C$400.00 | C$400.00 |
| Connection parts allowance | 1 set | C$155.00 | C$155.00 |
| Valve fitting labour | 1 each | C$450.00 | C$450.00 |
| Test and commission | 1 job | C$180.00 | C$180.00 |
| Wall patch allowance | 1 job | C$325.00 | C$325.00 |
| Illustrative subtotal | C$1,925.00 | ||
Scope and pricing boundaries
Replace one shower mixing valve at an accessible wall opening, with selected valve, connection allowance and wall closure.
Outside this example: No full shower rebuild, pipe reroute or concealed leak remediation.
Keep the product allowance, installation work and any unresolved condition visible as separate decisions. If access or the selected product changes, update the affected quantity or rate and explain the revision before the client relies on the estimate.
Before you send the estimate
- Record valve type, pipe access, wall finish and shutoff location before pricing opening and repair.
- Keep valve product, connection parts and wall finishing separate.
- Confirm shutoff, open the smallest workable access and pressure-test before closing the wall.
- Incompatible piping or failed waterproofing changes the repair scope.
Check the business, client, property, dates, line extensions and notes. The shower valve replacement PDF example shows one way to present them. Its short PDF note lists the brief's scope exclusions; the fuller project limits above should guide your own scope.
Questions about this estimate
Which quantity controls this shower valve replacement estimate?
Record valve type, pipe access, wall finish and shutoff location before pricing opening and repair.
When should this shower valve replacement quote be revised?
Incompatible piping or failed waterproofing changes the repair scope. No full shower rebuild, pipe reroute or concealed leak remediation.

MAKE THE NEXT ESTIMATE YOUR OWN
Build a shower valve replacement estimate.
Enter the job scope in Estimates on iPhone or Android or start from an AI-assisted draft. Check every quantity, rate, allowance, client detail and note before exporting the PDF. Some app features may require an in-app purchase.