When other work may be needed
- Sealant is not a substitute for correcting unsuitable flashing details.
- Chimney masonry, wall defects or equipment faults may require separate work.
- Work involving electrical equipment or solar systems requires appropriate trade coordination.
Before you request a quote
Provide your suburb, roof type if known, when the issue occurs, previous repairs and photographs taken safely. Ask for the findings and an explained written scope. Licence requirements depend on the work; verify the appropriate contractor with Service NSW.
Prepare a useful request for quotation
For this service, these details help define the assessment:
- Whether the leak is near a wall, chimney, vent or other roof junction.
- The indoor stain location and when it changes.
- Photos or invoices from earlier resealing.
What to ask the quote to explain
Ask whether the work corrects the junction itself, replaces flashing or is a limited patch, and whether adjoining masonry is excluded.
Use the RFQ and comparison checklist →See a similar job
View full photo 
View full photo Sealing roof and window joints
Ellis work photos showing sealing at roof junctions and around window-frame edges.
See what we did ↗Helpful roof guides
Do not climb onto a wet or damaged roof. Keep clear of sagging ceilings and electrical hazards. For a life-threatening emergency call 000; for NSW SES storm or flood emergency assistance call 132 500.
Common homeowner questions
Why does the leak near my chimney return after resealing?
The leak could involve the flashing arrangement, the adjoining roof or the chimney itself. A useful assessment looks at the entire junction and distinguishes the roof repair from any masonry work. Repeating the same surface patch may not address the cause.
Can a pipe penetration cause a roof leak?
Yes, the point where a pipe or vent passes through the roof is a junction to investigate. The surrounding roof material and the penetration detail both need to be considered when defining the repair.
Do all flashing repairs need new metal?
No single method suits every junction. The condition, design and compatibility of the existing components determine whether a local repair or replacement is appropriate. Ask for the intended method to be included in the written scope.
Why does my roof leak only in heavy rain or strong wind?
Intense rain can reveal a blocked outlet or a drainage problem; wind-driven rain can enter a vulnerable flashing, tile overlap or roof penetration. The timing is a useful clue, but an inspection needs to follow the water path and check the surrounding roof before choosing a repair.
Related roof services
Useful official information
Official homeowner and safety information:
Service NSW: check a builder or tradesperson licenceNSW SES: storm and flood emergency assistance
SafeWork NSW: asbestos safety