THE ESTIMATING ANSWER
For one accessible balcony deck, start with a defined scope and measurement basis. Measure deck area, threshold height, upstands, edge length and drainage outlet. Specify the membrane or coating system and edge profiles separately. Price the listed tasks separately and state the condition that would require a revision: Hidden substrate rot or inadequate fall requires a revised build-up.
This guide uses a fictional project in Victoria, British Columbia: One accessible balcony deck. 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
Renew the waterproof surface system on one small accessible balcony, including edge and outlet details on a sound substrate. Measure deck area, threshold height, upstands, edge length and drainage outlet. 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 deck area, threshold height, upstands, edge length and drainage outlet.
2. Build a product and labour schedule
Specify the membrane or coating system and edge profiles separately. This example has 7 distinct lines, including access and weather protection, existing finish removal, substrate preparation. Use actual supplier prices and labour inputs for a customer job; the displayed amounts are fictional document inputs.
Selections to confirm: Specify the membrane or coating system and edge profiles separately.
3. Sequence the work and handoffs
Remove existing finish, inspect substrate and confirm drainage fall before applying the new system. 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: Remove existing finish, inspect substrate and confirm drainage fall before applying the new system.
4. Set a change boundary
Hidden substrate rot or inadequate fall requires a revised build-up. The example excludes structural deck replacement, new guardrail or interior damage repair. Record the discovery, agree the revised work and update the estimate before adding it to the job.
If the job changes: Hidden substrate rot or inadequate fall requires a revised build-up.
Review the Canadian job address
Review access, grades, drainage and seasonal conditions at the property. Check utility locations, product availability and any local design or municipal requirements that apply to the real scope.
The existing finish removal line uses 120 sq. ft., approximately 11.15 m². Keep the actual site measurement and the supplier’s selling unit together when you replace this quantity. The example amounts are fictional CAD document inputs, not current rates for Victoria, British Columbia 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:
- Existing finish removal: 120 sq. ft. × C$8.90 = C$1,068.00.
- Substrate preparation: 120 sq. ft. × C$7.65 = C$918.00.
Adding all 7 rounded line amounts gives C$9,221.00. 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 |
|---|---|---|---|
| Access and weather protection | 1 job | C$420.00 | C$420.00 |
| Existing finish removal | 120 sq. ft. | C$8.90 | C$1,068.00 |
| Substrate preparation | 120 sq. ft. | C$7.65 | C$918.00 |
| Waterproof system allowance | 130 sq. ft. | C$19.00 | C$2,470.00 |
| Application labour | 120 sq. ft. | C$26.00 | C$3,120.00 |
| Edge and outlet detailing | 1 job | C$955.00 | C$955.00 |
| Final inspection and cleanup | 1 job | C$270.00 | C$270.00 |
| Illustrative subtotal | C$9,221.00 | ||
Scope and pricing boundaries
Renew the waterproof surface system on one small accessible balcony, including edge and outlet details on a sound substrate.
Outside this example: No structural deck replacement, new guardrail or interior damage repair.
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
- Measure deck area, threshold height, upstands, edge length and drainage outlet.
- Specify the membrane or coating system and edge profiles separately.
- Remove existing finish, inspect substrate and confirm drainage fall before applying the new system.
- Hidden substrate rot or inadequate fall requires a revised build-up.
Check the business, client, property, dates, line extensions and notes. The balcony waterproofing renewal 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 balcony waterproofing renewal estimate?
Measure deck area, threshold height, upstands, edge length and drainage outlet.
When should this balcony waterproofing renewal quote be revised?
Hidden substrate rot or inadequate fall requires a revised build-up. No structural deck replacement, new guardrail or interior damage repair.
MAKE THE NEXT ESTIMATE YOUR OWN
Build a balcony waterproofing renewal 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.
