What should this service address?
The cap covers a flue opening. The crown is the masonry top around openings, while flashing is at the roof/chimney junction. These are different components.
Confirm the chimney, appliance, cap suitability and assessed condition before replacement. A new cap does not establish that the crown, masonry or flashing is free of water-entry problems.
What should be clear in the proposal?
Use these questions to compare written proposals. They are questions for an agreed job, not guaranteed inclusions.
Swipe across the table to compare all columns →
| Proposal item | What to confirm | Why it matters |
|---|---|---|
| Flue and appliance | Which flue the cap serves and what appliance connects to it | Cap fit depends on the actual flue, not a general size |
| Cap compatibility | Whether the proposed cap suits the flue and its existing condition | A cap has to suit the flue to do its job |
| Removal and replacement | Whether the old cap is removed and how that work is priced | Removal is a separate question to settle in writing |
| Access | How the top of the chimney will be reached and what limits apply | Roof access should be planned and written into the scope |
| Adjacent components | Whether crown, flashing or masonry findings are excluded | Separate work needs its own written scope |
What helps the next conversation?
- Share the exact property address and known appliance or fuel.
- What was noticed at the cap and any prior top-of-chimney findings.
- Use only safely accessible photos; do not climb, dismantle or test the system.
- Describe access limits and agree the actual visit scope and schedule.

