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Crown repair for chimneys in Idlewyld

We tell you what can stay on your chimney top and what has to come off, with the reasons.

  • Owned and run locally
  • Available for same-day service
  • Fully licensed and insured
  • Family owned and run

Clues that point to the chimney crown

  • A flat top with no visible slope
  • No overhang past the brick face
  • Brick joints washing out just below the top
  • Water marks on a ceiling beside the chimney
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Crown repair that starts with an assessment

Naming the crown and the rain cap correctly

Two parts share the top of a masonry chimney. The crown is the concrete, stone or metal surface over the brick. The rain cap is the hood and screen fastened above the flue opening. People often use one name for both.

The names matter on an estimate. A cap priced for a crown fault leaves the water path open, and the reverse spends money in the wrong place. We name each part on your chimney, describe its condition separately and let you approve the work item by item.

Fine surface cracks on an otherwise firm crown

Hairline cracks are common in cast concrete. Brick industry guidance treats shrinkage of a cast crown as certain while it cures. The question is whether the cracks stay shallow or reach through the crown.

On a firm crown with fine surface cracks, a brushable crown coating can bridge them and keep water out. We confirm that the concrete around each crack is sound before recommending it. If the cracks open into loose sections, a coating is the wrong tool, and we explain the alternative.

Crowns on chimneys built of concrete block

Some masonry chimneys are built of concrete block rather than brick, sometimes finished with stucco. The crown's job is the same. The code expects hollow units in a chimney wall to be grouted solid, so the top should be solid enough to carry the crown.

We check the top of the wall when the crown is removed. If hollow cells are open under the old crown, water may have been draining straight into them. We explain how the new crown is bedded so it sits on solid material and sheds water outward.

The order of work at the chimney top

When several parts at the top need attention, the order matters. Loose brick below the crown is dealt with before anything else. The crown comes next, with its flue joints sealed. The cap and any damper go back on last.

Working in that order avoids fitting new parts over a surface that is about to change. We explain the sequence on your estimate and note which items you have approved. If you choose to delay one item, we explain how that affects the others.

Crown repair scope, item by item

  • Elastomeric crown coating where suitable
  • Flue liner projection above the crown
  • Curing time and weather protection
  • Water path notes for leak questions

Your chimney crown repair questions

Does crown repair include the seal around the flue tiles?

It should. The residential code calls for a caulked bond break where each flue liner passes through the crown. We check that joint, remove failed sealant and reseal it with a suitable elastomeric product as part of the agreed crown scope.

What should I tell you when I call about the crown?

Mention what you have seen, such as concrete pieces on the roof, a stain inside or cracks visible from the yard. Tell us about earlier patches or coatings and any appliance that vents through the chimney.

Will crown work damage my roof covering?

The roof is protected where we stand, stage material and apply products. Spills are cleaned as the work proceeds. Tell us about fragile roofing before the visit so the access plan accounts for it.

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