What to include in a chimney flashing repair quote in Australia

By Estimates editorial team · Published 2026-09-25 · Australia edition

This guide follows one existing chimney junction in Brisbane, Queensland. The matching itemised estimate and PDF show how the job brief becomes measured quantities and separate AUD amounts. The responsible role in this scenario is roofing contractor. Check the actual site, selected products, supplier figures and labour plan before issuing a client quote.

1. Define the measured job

Replace failed flashing at one chimney-to-roof junction while retaining otherwise sound roof covering and masonry. Measure chimney perimeter, apron and side lengths, roof pitch and access height. 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.

Measure for this job: Measure chimney perimeter, apron and side lengths, roof pitch and access height. Put that measured basis beside the relevant PDF lines so area, fitted length and product purchase quantities stay distinct.

2. Build a product and labour schedule

Specify metal or compatible flashing components and any reused covering allowance. This example has 7 distinct lines, including roof access and protection, lift adjoining covering, old flashing removal. Use actual supplier prices and labour inputs for a customer job; the displayed amounts are fictional document inputs.

Choose before pricing: Specify metal or compatible flashing components and any reused covering allowance. The fixture separates roof access and protection, lift adjoining covering and old flashing removal rather than hiding all work in one figure.

3. Sequence the work and handoffs

Inspect masonry joints before lifting nearby covering; protect the opening during work. 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.

Plan the handoffs: Inspect masonry joints before lifting nearby covering; protect the opening during work. Note which stage needs access, a selected product or another trade before the next stage can be priced confidently.

4. Set a change boundary

Loose masonry or wet decking changes the base repair. The example excludes chimney rebuild, roof replacement or interior water-damage repair. Record the discovery, agree the revised work and update the estimate before adding it to the job.

Change trigger: Loose masonry or wet decking changes the base repair. Record the revised task and quantity before it changes the amount your client sees.

Review the Australian job

Check access, substrate, drainage and product delivery at the property. Record weather and site conditions that affect the work, and confirm any design or approval requirements for the real scope.

The old flashing removal line uses 8.53 m. Keep the site measurement and supplier's selling unit together; a material purchase allowance can differ from installed coverage. The amounts are fictional AUD inputs, not current prices for Brisbane, Queensland or another location.

Worked project calculation

The paired PDF has 7 cost lines. For example, Old flashing removal is 8.53 m × A$81.00 = A$690.93; Flashing material allowance is 9.75 m × A$189.48 = A$1,847.43. Each amount comes from the stated quantity and unit rate, so you can trace the arithmetic back to the job scope.

Adding every exact-cent line gives A$6,248.80. The PDF uses a 0% tax input only to make its fictional arithmetic visible. Confirm the GST treatment that applies to the actual job and set your own markup before sharing a client quote. A fictional rate is a document input, not a market quote or a recommended selling price.

Scope and pricing boundaries

Replace failed flashing at one chimney-to-roof junction while retaining otherwise sound roof covering and masonry.

Outside this example: No chimney rebuild, roof replacement or interior water-damage repair.

Separate product allowances, supply, installation, disposal and any specialist work where the actual project needs them. If access or a hidden condition changes, document the affected scope and agree a revised price instead of silently extending the base amount.

Before you send the estimate

• Measure chimney perimeter, apron and side lengths, roof pitch and access height.
• Specify metal or compatible flashing components and any reused covering allowance.
• Inspect masonry joints before lifting nearby covering; protect the opening during work.
• Loose masonry or wet decking changes the base repair.

Check business and client details, address, dates, scope, units, line amounts and PDF notes. The chimney flashing repair PDF example shows how this fictional project is presented. Its short PDF note is not a substitute for the detailed exclusions above.

Questions about this estimate

Which quantity controls this chimney flashing repair estimate?

Measure chimney perimeter, apron and side lengths, roof pitch and access height.

When should this chimney flashing repair quote be revised?

Loose masonry or wet decking changes the base repair. No chimney rebuild, roof replacement or interior water-damage repair.

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