Crown repair for chimneys in Weston
We look at the crown, the flue joints and the brick below before suggesting sealing or a new crown.
- 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 crack running outward from a flue
- Peeling coating from an earlier repair
- Pieces missing from the crown corners
- Brick joints washing out just below the top
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How a crown repair runs, step by step
When cracks run through the crown
A crack that runs from the flue to the outer edge may go through the full depth of the crown. Water can then travel down into the chimney. Pieces may also shift or lift as the crack widens.
Through-cracks change the repair. Filling the surface line does not rejoin the concrete underneath, and coatings are meant for sound material. We tap and inspect the sections on either side. When the crown is split into loose pieces, replacement is usually the honest recommendation, and we explain why.
Why a dry crown matters for sealing
Crown coatings are not applied to wet or saturated concrete. The product data also warns against application when rain is expected soon, unless the work is protected with sheeting. Moisture under a fresh membrane can stop it bonding.
We plan coating work for a dry spell and check the surface on the day. If showers move in, we cover the crown or stop and return. That can feel slow, but it protects the result you are paying for. We tell you about any change of date.
When crown sealing is the wrong recommendation
Sealing is a smaller job than replacement, so it is tempting to hear that a crown only needs a coat. On the wrong crown, that answer buys a short delay and another repair later. The coating will not hold loose concrete in place.
We recommend sealing only when the crown meets the conditions the product requires. When it does not, we say so plainly and explain what replacement involves. You make the decision, but you make it with an accurate picture of the top of your chimney.
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.
What the free crown inspection covers
- Elastomeric crown coating where suitable
- Reinforcement planned for a new crown
- Separate lines for cap or liner defects
- Mortar wash assessment and removal
Crown sealing and replacement answers
What does the free inspection include for a chimney crown?
We look at the crown surface, edges, slope, overhang and the seal at every flue, plus the cap fixings and the brick just below. You hear the findings on site and receive a free written estimate that keeps each item separate.
Can you repair the crown on a stone or stucco chimney?
The code allows a concrete, metal or stone top on a masonry chimney, and a stucco or stone face does not change the crown's job. We assess the top the same way and treat repairs to the sides as separate work.
What if my chimney has a metal top instead of concrete?
Some masonry chimneys carry a metal or stone top rather than cast concrete. A framed chimney with a sheet-metal cover has no crown at all. We identify which one you have before suggesting any crown work.
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Local service. Careful repairs. A fireplace worth coming home to.
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Chimney & Fireplace Brands We Work With
DuraVent 
Olympia Chimney and Venting 
Copperfield Chimney Supply 
Rutland 
Heatilator 
Heat & Glo