Overview
Our team at Zavza Seal completed a structural repair project in North Bellmore, NY. The work focused on a failing central wood beam in the crawl space that was causing the floor above to bulge and shift. The goal was to stabilize the structure, correct the uneven floor, and prevent long-term damage.
The Problem
The homeowner noticed that parts of the floor were lifting and felt uneven when walking. This was not just a surface issue. It was a deeper structural problem.
Our inspection showed that the central wood beam in the crawl space was undersized for the load it was carrying. The beam was made of three wood planks that were not strong enough for a 15 foot span. Over time, this caused the beam to bend.
To make things worse, a previous repair attempt used small wood shims placed on bricks with no proper support. These shims were misaligned and unstable. This created a weak point under the beam, leading to further movement.
We also measured a height difference of nearly 1 inch across the beam, confirming that the structure had shifted. If left untreated, the beam could continue to bend and eventually crack.
The Solution
We followed a careful code-compliant step by step plan to fix the issue safely and permanently.
First, we installed temporary shoring to support the structure. This allowed us to work without putting stress on the home.
We then saw cut sections of the concrete slab and excavated areas to create new reinforced footings. Each footing was built at 12 by 12 by 12 inches and reinforced with steel rebar for added strength. We poured high strength concrete with fiber to improve durability.
After the footings cured, we installed four concrete filled steel columns. Each column was secured with top and base plates and coated with rust resistant paint. These columns now provide strong vertical support for the central beam.
Next, we carefully lifted the beam slightly using bottle jacks. This was done slowly in small increments to avoid damage to the structure above. Once lifted, we removed the old shims and replaced them with solid pressure treated Douglas Fir lumber. This created a proper and stable connection between the beam and the new columns.
We also treated areas of rotted wood by removing damaged sections and applying a stop rot wood restorer. This helps strengthen the wood and protect it from future moisture damage.
As part of the additional work, we installed two new footings and added a double 2×12 girder along the foundation wall. This girder was placed directly under a load bearing wall to improve support.
Finally, we reinforced the floor joists under the fireplace by adding matching wood members and securing them with joist hangers.
Materials and Benefits
We used structural steel columns, reinforced concrete, pressure treated lumber, and high quality wood restoration products.
These materials work together to provide strong and long lasting support. The new system prevents further bending, reduces stress on the structure, and helps keep the floor level.
The repair also protects the home from future structural issues and improves overall safety.
The Result
After the work was completed, the floor was significantly more level and stable. The structural support system is now strong and properly installed.
The homeowner no longer feels movement or uneven areas when walking. The crawl space is now secure, and the risk of future damage has been greatly reduced.
Structural issues in crawl spaces are often hidden but can lead to serious problems over time. Fixing them early helps avoid major repairs and keeps your home safe.