Chimney crown repair in Nassauville by local masons

Concrete chips on your Nassauville roof point back to the crown they came from. That is where our free inspection starts.

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Locally owned
Family owned and operated
Same-day service

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(904) 920-5495 Free Inspection

Chimney crown pros who check before they seal or recast

Locally owned in Jacksonville
Family owned and operated
100% satisfaction guaranteed
Free inspection and estimate
Same-day service available
10% off any service

Hairline cracks on a sound slab get sealed, which keeps the job smaller and the price lower.

Free inspection and estimateWe map the cracks on your Nassauville crown and check the brick under it at no charge.
Upfront pricing, no hidden feesCoating and recasting are both priced on paper, so you see the difference before choosing.
100% satisfaction guaranteedIf the finished crown is not right, tell us and we come back to put it right.

Call (904) 920-5495 Free Inspection

When a cap sits on the crown

Where a cap sits above the crown, how that cap is fastened decides how the crown work goes. A cap clamped to the flue tile can sometimes stay while a coating goes on around it. A cap screwed down through the crown has to come off for any real crown repair.

We note how the cap is mounted on your Nassauville chimney, whether it has to come off, and how it goes back on the finished crown. If the cap itself is rusted or undersized, that is noted as a separate line so you can decide whether to replace it while the top is open. Describe the top of your Nassauville chimney to our crown pros at (904) 920-5495, and the check costs nothing.

The county for Nassauville is Nassau County. Nassauville is near the coast without touching it.

What our crown work covers in Nassauville

Cracks mapped and measured before any repair is chosen
Loose top courses relaid before the new crown is cast
Crown sloped so water runs off toward the edges
Roof and gutters cleared of crown debris at your Nassauville home

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From crack map to cured crown in Nassauville

Crack map from the roof
We identify the type of top and sketch each crack with its width, so the choice between coating and recasting is based on what is there.
Prep for coating or removal
A sound crown is cleaned and its wider cracks filled; a failed one is broken out down to sound brick.
Coat, or form and pour
The coating is brushed on in dry weather, or new concrete goes into forms with an overhang, a drip groove and reinforcement.
Cure, seal and refit the cap
The bond break at each flue is sealed, the concrete cures under cover, and the cap goes back on.

Crowns and storm season in Nassauville

From June 1 to November 30 a crown in Nassauville takes wind and heavy rain near the coast. Cracks that were hairline in spring can open after a season of storms.

We check the crack map against the last one, and a crack that has grown is sealed or the crown is recast before the next season.

10% off any service booked within 72 hours of inspection

Tell us you want the discount when you call about the crown, and we note it on the booking.

Call (904) 920-5495 Free Inspection

Hairline, open and through cracks

Crown cracks come in three broad kinds. Hairline cracks are surface lines you can see but not fit a fingernail into. Open cracks have width and depth, and water pools in them. Through cracks run the full thickness of the slab, so a piece moves when pressed or water drains straight into the chimney.

Hairline cracks on a sound crown are the case for a coating. Open cracks need filling first, and a coating after. Through cracks, especially several of them, mean the crown has become separate pieces, and the reliable repair is a new crown. The crack map records which kind each crack is.

Feathered edges and why they break

A mortar wash tends to be thick near the flue and thin toward the edge of the chimney, sometimes to almost nothing. The BIA technical note on chimneys tells builders not to thin a cap out to its edge, since that thin margin has almost no strength and goes first.

That thin edge cracks, lifts and falls away in flakes, which can be the first sign of trouble anyone notices from the ground. Once it goes, water runs straight onto the top of the brick. A cast crown keeps its full thickness to the edge and overhangs the brick instead. That edge is also where the drip groove lives.

Reinforcing steel in crowns near salt water

Close to the coast, chlorides from salt spray settle on a crown and work into the concrete. When they reach ordinary reinforcing steel, the steel rusts, and rust takes up more room than the steel it came from. The expansion splits the crown from inside, along the line of the bars.

For crowns in this band we keep reinforcement well inside the concrete, choose a dense mix, and consider reinforcement that does not rust where the design allows it. The concrete code, ACI 318, treats chloride exposure as its own durability category, and we build the crown with that exposure in mind.

Coat or recast, and the reasons

Crown type found: mortar wash, cast-in-place or precast
Bond break material around each flue tile
Chimney cap removal and reinstallation, with how it is fastened
Other findings on flue tile or brick, listed as separate lines

Crown repair questions from Nassauville

Can I tell from the ground whether my crown is a mortar wash?

Sometimes. A thin gray layer that tapers to the edge with no overhang is likely a wash, while a thicker slab that projects past the brick is likely a cast crown. We confirm it from the roof.

Will a new crown fix my leak?

It fixes a leak that is coming through the crown. If the water is entering at the flashing, the brick or the flue top, a new crown will not stop it, which is why we trace the entry point first.