Masonry repair
Sweep & inspection
Caps & crowns
Flue relining
Gas fireplace serviceLevel 1 sweep and inspection to the NFPA 211 annual standard - flue, crown, cap, and flashing checked and photographed
Chimney sweep logs do not sweep chimneys. They loosen some creosote - which then falls where a brush and vacuum still have to collect it.
HeatShield Crown Repair: The Long Beach Owner’s Guide
A HeatShield crown repair in Long Beach typically runs $650 – $1,450 installed, depending on crown surface area, crack depth, and how much of the existing mortar needs to be ground out first. We stock HeatShield’s Cerfractory sealant on our trucks, so most crown repairs get done in a single visit. Most Long Beach homeowners find the problem the same way: they look up, see a hairline crack running across the crown, and later that winter notice water staining on the ceiling near the fireplace.
Here’s the part most people skip: the chimney crown (the concrete slab that caps the chimney) is not the same as the flue cap. The crown sheds rain away from the flue. When it cracks, water gets into the brick and mortar below it, and that’s when repair costs start climbing. HeatShield’s crown repair system isn’t a coating you can slap on and forget. It’s a repair method that has to follow the product’s own spec: surface prep, primer, sealant, cure time. Skip one step and you’ve bought yourself a repeat failure.
Key takeaways:
- Installed HeatShield crown repair in Long Beach: $650 – $1,450
- We stock HeatShield Cerfractory sealant; most jobs are same-visit
- Written price before work starts. Always.
- 365-Day Done Right Promise on every crown repair
Which HeatShield Models This Applies To
HeatShield crown repair doesn’t have model numbers the way a furnace does. What you’re matching is the formulation, not a part number stamped on a box. HeatShield sells their crown repair system as a set: Cerfractory sealant plus a bonding primer. The two have to go on together. If you’ve got a bucket of HeatShield sealant but no primer, it will not bond correctly to the existing crown, especially on the salt-air patios and rooflines across Long Beach’s coastal side.
The compatibility gotcha we see most often: someone buys the HeatShield flue sealant (for the inside of the chimney) thinking it works on the crown. It doesn’t. HeatShield makes two different Cerfractory products, and they are not interchangeable. Flue product goes inside, crown product goes on top. Using one in the wrong place gives you a failed repair that still looks fine from the ground for six months.
If you’re trying to match an existing repair, the bucket label will say either “Crown Repair” or “CrownCoat.” Both are HeatShield products, but CrownCoat is a thinner resurfacing material, while the Crown Repair system is a thicker crack-bridging sealant. For cracks deeper than 1/8 inch in Long Beach’s coastal air, Crown Repair is the spec that holds. For shallow spider-web cracking, CrownCoat can work. We’ll tell you which one the crown actually needs, not which one we’d rather sell.
On the OEM-versus-aftermarket question: there is no true aftermarket equivalent for HeatShield’s Cerfractory chemistry. There are generic crown sealants at the big-box store. They cost $40 a bucket. They also typically last two or three winters before the UV and salt air break them down. For a crown repair you want to do once and forget for a decade, HeatShield is the product we spec. We’re an independent company, not affiliated with HeatShield, but we use their material because the failure rate is measurably lower than the off-brand options.
Other brands we stock and work with include DuraFlex and Gelco, but across the board, HeatShield’s crown system is the one we reach for first on cracked crowns in Long Beach’s climate.
Styles & brands we work with





Signs Your HeatShield Crown Repair Is Failing
- Water staining on the ceiling or wall near the chimney. A cracked crown lets rain run straight down into the brick and eventually into the attic. By the time you see the stain inside, the crown has usually been compromised for a full rainy season or more.
- White mineral streaks (efflorescence) on the outside brick below the crown. Water dissolves salts inside the mortar, carries them to the surface, and leaves chalky white residue behind. It’s not a cosmetic issue; it’s proof that water has been moving through the chimney for months.
- Pieces of mortar or crown material on the roof or in the gutter. The only reason crown material ends up in the gutter is spalling, little freeze-thaw and salt-air pop-outs from the crown edge. If you find chunks, the crown is actively degrading.
- A crack you can fit a coin edge into. Hairline cracks are normal and can be sealed with CrownCoat. A crack wide enough for a nickel or a quarter means the crown has already started opening up, and the HeatShield Crown Repair system is the right spec.
- Musty smell from the fireplace after rain. That’s water soaked into the brick and soot, which mold likes. Even a small crown crack can keep the chimney interior damp enough to smell for weeks.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included
In Long Beach, a full HeatShield crown repair job usually lands between $650 and $1,450 installed. Here’s what moves the number:
- Crown size – a single-flue crown on a standard run is at the low end. Larger, multi-flue crowns or unusually thick crowns take more material and more time.
- Crack count and depth – more cracks, more grinding and more sealant.
- Access – rooftop access, slope, and chimney height all affect labor time. A steep roof in Belmont Shore or Naples adds setup work versus a walkable pitch in Bixby Knolls.
- Prep work – if the old sealant needs to be ground out, that’s time. If the crown needs a new scratch coat under the HeatShield system, that’s material plus time.
Every estimate we give includes parts, labor, cleanup, and the written guarantee. You get the number on paper before we start. The invoice you approve is the invoice you pay – no add-ons for “unexpected material costs.” If a covered crown repair fails within one year of service, we come back and fix it at no charge under the 365-Day Done Right Promise. (562) 317-7262 gets you a live dispatcher, any hour.
DIY or Call Us?
If you want to figure out whether the crown is the problem before spending anything, you can check two things safely from the ground with binoculars: look for visible cracks wider than a hairline, and look for white mineral staining on the brick below the crown. That’s honest information, and it’s free.
What you shouldn’t do is get up on the roof with a bucket of big-box sealant. A chimney crown repair done wrong is a safety issue, not a cosmetic one. The crown is your chimney’s only rain shield, and the repair has to be watertight against Long Beach’s winter rains, salt air, and occasional Santa Ana heat. A bad patch job looks fixed for six months and then fails right when you need it most. HeatShield’s system also involves mixing and applying a two-part sealant to spec, on a sloped surface, usually at height. That’s not a Saturday project.
If the crown’s cracked and you want it done right the first time, call (562) 317-7262 for a written estimate. We’ll inspect, show you photos of what we found, and give you the number before anything starts. Clean flue, honest report – that’s the whole job.
FAQs
A HeatShield crown repair installed to spec will typically last 10 – 15 years in Long Beach’s coastal climate, longer if the chimney is regularly inspected and the surrounding brick is kept in good shape. Salt air and UV are the two main things that wear down any crown surface in Long Beach, so we tell customers to have the crown looked at during every annual chimney inspection. Call (562) 317-7262 to schedule one, and we’ll quote crown repair at the same visit if it’s needed.
Yes, cracked crowns can be repaired, and HeatShield’s ceramic sealant is designed exactly for that unless the crown is missing whole chunks or has degraded past the point of being stable. In Long Beach, we replace a crown only when it’s beyond saving – most of the repairs we do are crack-filling, resurfacing, and resealing, not replacement. To know which category your crown falls into, call (562) 317-7262 for a free inspection.
A standard HeatShield crown repair on a single-flue Long Beach chimney takes about 2 – 4 hours, including surface prep and a cure window for the sealant to set. If the crown needs more extensive grinding or a recoat with CrownCoat, that can push the job to most of a day. You’ll get a time estimate with the written price before we start. Call (562) 317-7262 to book the inspection that gets the clock started.
Yes, our trucks regularly carry HeatShield Cerfractory Crown Repair sealant and bonding primer, along with CrownCoat for shallow surface work. That means most Long Beach crown repairs can be done on the same visit as the inspection. If your crown needs something outside the standard kit, we’ll tell you before you pay anything and get the material ordered. Call (562) 317-7262 and we’ll confirm what’s on the truck that day.
Written by Hank Delano, Owner, Flint Chimney Co Long Beach at Flint Chimney Co Long Beach, serving Long Beach and nearby areas.