Chimney crown repair for Park Lake/Highland homes

Cracks that run through the crown

A crack you can see from the yard, or one that reaches the edge of the crown, often runs through its full thickness. Water goes straight through to the brick below, and the pieces on each side of the crack start moving on their own.

Deep cracks are where a patch stops being enough. Our pros look at how many there are, whether the pieces are loose and what the brick under them looks like. The written estimate explains whether a repair can hold or the crown should be replaced.

One way to judge a crack from the yard is to look at the brick below it. A dark streak or white deposit running down from a crown crack usually means water is passing all the way through. Mention it when you book and our technician follows that path during the inspection.

Shrinkage cracks in a newer crown

Concrete shrinks as it cures. The Brick Industry Association treats some shrinkage as a certainty and points to reinforcement as the way to control the cracking that follows. A crown poured without steel, or poured tight against the flue, often shows cracks within its first seasons.

If your crown is fairly new but already cracked, our pros look for the cause before anything else. Tight contact at the flue, missing reinforcement and too thin a section each call for a different fix, and we tell you which one applies in plain words and in writing.

Newer crowns sometimes come with paperwork from the builder or an earlier contractor. If you have anything describing the work, bring it to the inspection. It helps our technicians understand what was built and makes the repair plan more precise.

What a full crown rebuild includes

A crown rebuild covers the whole top of the chimney. The old crown comes off, the top brick is checked, forms go up, reinforcement goes in, and a new sloped crown is cast with an overhang and drip.

After it cures, the flue joint gets its sealant and any cap is refitted. Our written estimate lists each of those steps, and at the end of the job we walk you through them so you know exactly what you paid for.

A rebuild also includes protecting the flue during the work and checking it afterward, so no debris is left inside. If the cap needs replacing, it is fitted once the crown has cured. Everything is listed, so you can see what the rebuild includes and what it leaves out.

• Old crown removed down to sound masonry
• Forms, reinforcement and a sloped pour
• Bond break and sealant at each flue

When the top of the chimney needs relaying

Sometimes the crown is only the most visible part of the problem. If the top of the chimney has loose bricks, open joints and a lean, the upper section may need to come down and be relaid before a new crown goes on.

That larger job is a chimney rebuild of the top courses, and it gets its own written scope. We only recommend it when the masonry calls for it, and we show you why before you decide.

Relaying the top courses and casting the crown in one project is usually simpler than doing them separately, since the access and setup happen once. The estimate shows both parts, so you can see the full scope and decide whether to go ahead.