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Read the outside edge as part of the repair

A masonry crown sheds water away from the stack. Ask the provider to describe where the edge ends relative to the brick face and where runoff will drip. If pieces are falling, keep people away from the area below. A ground photo showing the whole top provides better context than a close-up of a loose fragment.

Find the boundary around the flue

Clay liner tile and the surrounding crown need a detail that accommodates movement. Ask how a proposed repair handles that junction and whether the top course of brick can support it. A cap that covers the flue opening is a different item and should have its own line if it is being replaced.

Compare the same edge on two proposals

One contractor proposes a coating across the existing crown. A second proposes removal and recasting. If the projecting edge is missing, ask the first provider what will form the drip after work and what sound material will support the repair. Ask the second which portions are too deteriorated to retain and whether sound flue tile, its movement detail and an existing cap can be preserved. The comparison becomes specific to your stack rather than a choice between the words “seal” and “replace.”

Find the correct permit file for older work

Hollywood links its Accela permit search, existing BCLA records and a separate Oracle permits entry for 2022. If you inherited a masonry quote from that period, identify the job date or original file reference before looking it up. The record can help distinguish earlier roof work from a crown replacement. For the new proposal, describe any reconstruction below the top and ask Building staff which process applies to that scope.

Record the conditions that change the price

The lower face of a deteriorated crown can hide damaged brick until access is available. Decide before removal how further damage will be shown to you, what will protect the open top and whether additional masonry requires a separate authorization. That agreement matters most when the main price assumes only the crown needs work.

Keep weather work and flue work separate

The top of a clay tile may be visible while the rest of the liner is concealed. If material has broken free or reached the hearth, keep the fireplace out of use and ask which additional examination is needed. A sound new drip edge only settles the exterior work included in that quote.