The top defense for masonry chimneys

Chimney crowns shaped to move water away

Crown resurfacing, crack repair and complete crown replacement with proper slope, overhang, flue clearance and water-shedding details.

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The crown covers the top of a masonry chimney and protects the wall system below it. Thin wash coats, flat surfaces and missing overhangs hold water where freeze-thaw damage begins. We separate repairable surface defects from crowns that need full removal and reconstruction.

System options

Crown systems and repair options

A coating can preserve a stable crown, but it should not be used to hide major movement or failed concrete.

01

Elastomeric crown coating

Best forStable crowns with small surface cracks and sound edges

A flexible, weather-resistant coating applied after cleaning and crack preparation. It is a maintenance system, not a structural replacement for loose or deeply fractured concrete.

02

Localized crown repair

Best forLimited edge, joint or penetration defects

Repairs defined failed areas and restores water-shedding transitions when the main crown remains secure. Compatibility and bond preparation are critical to longevity.

03

Cast-in-place concrete crown

Best forFailed, flat, undersized or severely cracked crowns

The old crown is removed and a reinforced, sloped crown is formed with an overhang and drip detail. Flue expansion space and sealing are addressed around each tile or liner termination.

04

Precast crown or custom top slab

Best forProjects suited to a fabricated top with controlled dimensions

A designed unit can provide consistent shape and finish when chimney dimensions and lifting access allow. Joints and flue penetrations remain part of the waterproofing design.

What to look for

Common signs of crown failure

  • Visible cracks run across the top surface
  • Pieces are loose or missing at the crown edge
  • The top is flat and allows water to stand
  • Brick below the crown is spalling or stained
  • Sealant around flue tiles is separated
What the scope can include

A complete written scope

  1. Crown surface and edge condition review
  2. Flue tile or liner termination assessment
  3. Loose material removal and substrate preparation
  4. Repair coating or full forming based on selected system
  5. Final seal and water-shedding detail inspection
How the work moves

Our service process

  1. Determine whether the crown is stable enough to repair
  2. Select coating, localized repair or replacement
  3. Protect the roof and prepare the existing top
  4. Install the selected crown system and flue seals
  5. Document the completed slope, edges and termination
From selection to final review

A clear project path, with expectations in writing.

01

Inspection & documentation

We inspect accessible conditions, take measurements and document the parts of the system that shape your repair or installation options.

02

System options & written scope

You receive practical material and system choices, a defined scope of work and clear exclusions where hidden conditions may exist.

03

Contract, deposit & scheduling

Once you select your system:

  • We sign a clear, written contract
  • A 30% deposit is collected
  • We schedule your project
04

Installation & progress documentation

We protect the work area, install the approved scope and document important conditions and completed details as the project moves forward.

05

Cleanup & final inspection

We clean the property thoroughly. Most exterior construction sites are approximately 90-99% clean the same day. For qualifying multi-day masonry and exterior projects, our next-day closeout can include:

  • A final inspection
  • An additional magnetic sweep
  • Final drone photos when conditions and location allow
  • A complete quality-control review

Exact payment milestones, closeout steps and return visits are stated in the written contract for the selected project.

Service questions

Details worth understanding.

Final specifications depend on the inspected conditions, appliance listing, selected manufacturer and applicable local requirements.

Is chimney crown sealer the same as waterproofing the brick?+

No. Crown coatings are formulated for the horizontal top surface. Masonry water repellent is a separate breathable treatment for vertical brick and mortar.

Can a cracked crown always be resurfaced?+

No. If the crown is loose, moving, deeply fractured or missing proper geometry, replacement is usually more reliable than a surface coating.

Start with the right inspection

Schedule Your Chimney Inspection or Service!

Share the property location, appliance type and the problem you want evaluated. We will help identify the right next step.

Service areaNorth & Central New Jersey
Call for an estimate(862) 587-2214