Leaning Chimney Repair and Foundation Stabilization in Bellmore, NY
A leaning chimney is more than a cosmetic problem. It can be a sign that the foundation supporting the chimney has begun to settle, allowing the structure to shift away from the home. If left untreated, the movement can continue and lead to larger structural repairs.
Our team at Zavza Seal recently completed a chimney stabilization project for a homeowner in Bellmore, NY. The chimney showed signs of settlement, deteriorating mortar joints, and weather-related damage. The homeowner wanted a permanent solution that would stabilize the chimney while protecting it from future moisture damage.
The Problem
The homeowner noticed that the chimney appeared to be leaning slightly away from the house. Small gaps had developed where the chimney met the exterior wall, and several mortar joints showed signs of cracking and deterioration.
During our inspection, we confirmed that the chimney foundation had settled over time, allowing the structure to shift. The existing sealants around the expansion joints had also deteriorated, creating areas where water could enter the masonry.
The chimney crown showed signs of aging, allowing moisture to penetrate the brickwork during rain and snow. Over time, water infiltration can weaken mortar joints and accelerate damage caused by freezing and thawing during New York winters.
To prevent additional movement and restore the chimney, both the foundation and masonry required professional repair.
Our Solution
The first step was to stabilize the chimney’s foundation.
Our crew carefully excavated around the chimney foundation and installed two new heavy duty helical piles with engineered foundation brackets. Each pile was advanced into stable supporting soil until reaching a minimum ultimate capacity of 20 tons. Once installed, the brackets transferred the chimney’s weight onto the new deep foundation system, helping prevent further settlement.
After the foundation stabilization was complete, the excavation was backfilled and restored to the original grade.
Next, we focused on repairing the masonry.
We removed the old deteriorated sealants from the movement joints before installing new backer rods, structural epoxy, and high performance waterproof joint sealants. This helped restore flexibility while preventing water from entering the repaired joints.
Our team then ground out approximately one half inch of deteriorated mortar from the chimney joints before repointing the entire chimney using a durable light beige mortar that closely matched the existing masonry.
To further protect the chimney, we removed the damaged crown and installed a new cement chimney crown. A properly constructed crown helps direct rainwater away from the masonry instead of allowing it to penetrate the brickwork.
As the final step, we applied a professional waterproofing sealant across the entire chimney. This breathable treatment helps repel water while still allowing trapped moisture inside the masonry to escape naturally.
The Result
The completed project successfully stabilized the chimney and addressed the conditions that had contributed to its deterioration.
With the new helical pile system supporting the chimney foundation, the homeowner now has confidence that additional settlement has been prevented. The fresh mortar joints, new chimney crown, and waterproofing treatment provide added protection against rain, snow, and seasonal weather changes.
In addition to improving the chimney’s structural stability, the repairs restored its appearance and helped extend the life of the masonry.
The homeowner now has a safer, stronger chimney that is better protected against future movement and moisture damage.
Why Chimney Foundation Repairs Should Never Be Delayed?
A leaning chimney often develops gradually, making it easy to overlook during its early stages. However, even small amounts of movement can place stress on the masonry, create openings for water intrusion, and lead to more expensive repairs over time.
Professional inspections can determine whether the movement is caused by foundation settlement, deteriorated mortar, moisture damage, or a combination of these factors. Addressing the root cause early often helps prevent additional structural movement while protecting the rest of the home.
At Zavza Seal, every chimney repair begins with a detailed inspection so we can recommend solutions based on the actual condition of the structure. Whether the project requires foundation stabilization, masonry restoration, waterproofing, or all three, our goal is to provide repairs that deliver long-term performance.
Need Chimney Foundation Repair in Bellmore, NY?
If you have noticed a leaning chimney, cracked mortar joints, gaps between the chimney and your home, or signs of water damage, Zavza Seal is here to help.
Our experienced team provides chimney foundation stabilization, helical pile installation, masonry restoration, waterproofing, and structural repair services throughout Bellmore, Long Island, and the surrounding communities. We focus on identifying the source of the problem and delivering long-lasting repairs that help protect your home for years to come.
Suggested External Resources
- Chimney Safety Institute of America (CSIA)
- International Code Council (ICC) Building Safety Resources