1.Overview
Rectification is not just about “straightening the house”; the core goal is to restore structural safety and stability. Through systematic operations such as “settlement-stopping pile foundations + straightening displacements + structural reinforcement,” the house can not only return to normal use but often achieve a more stable foundation than its original state.
1. Why Can Long-Term Safety Be Ensured After Rectification?
⑴、Tilt rate restored to the SNI 8460:2017 safety range
After rectification, the overall tilt rate of the house will be controlled within 2‰ (1.5‰ for public buildings), fully complying with national standards. The structural forces shift from “twisted eccentricity” back to “vertical balance,” eliminating additional internal forces caused by tilting and restoring beams and columns to their designed stress state.
⑵、Essential improvement in foundation bearing capacity
Deep Foundation Stabilization: Utilizing static pressed piles to penetrate through shallow soft soil layers and reach the hard bearing stratum. This is equivalent to equipping the building with a “steel skeleton,” completely blocking the threat of soil creep—common in areas like Jakarta and Surabaya—to the foundation.
Waterproofing and Sand Fixation: To address the issue of groundwater undercutting during the rainy season, high-pressure grouting is applied around the foundation to seal it, preventing rainwater from further eroding and softening the foundation soil.
⑶、Comprehensive Structural Damage Repair
Method: Grouting and reinforcement with carbon fiber/steel mesh are applied to existing settlement cracks in walls, beams, and columns.
Effect: The repaired crack areas often exhibit higher strength than the original concrete, restoring the structural load-bearing capacity and seismic performance to meet design requirements, enabling normal resistance to external impacts such as common earthquakes, heavy rain, and soil micro-movements in Indonesia.
3. Three Major Functional Restorations After Rectification
⑴、Restoration of Residential and Commercial Functions
The indoor floor is restored to a level surface, and doors and windows (Kusen) automatically reset with smooth operation. For factory buildings, after the floor flatness is restored, high-precision production equipment can be reinstalled and operate normally.
⑵、Mechanical and Electrical Integration with Drainage System:
Drainage during Indonesia’s rainy season is crucial. After rectification, the indoor and outdoor drainage gradients were re-established, completely resolving issues of sewage backflow and waterlogging (Banjir) caused by tilting.
⑶、BuildingUsageLifespanRestoration：
Under the condition of no illegal additional floors and no extreme geological disasters, the lifespan of buildings after rectification and reinforcement can match their original design period (usually 50 years), while significantly reducing daily maintenance costs caused by continuous settlement.
IV. The “Revival” of Law and Compliance
Building safety must comply with PBG/SLF (Proof of Building Reliability) regulations.
Compliance Assessment: Severely tilted buildings cannot obtain SLF and may face fines or even forced demolition. After rectification is completed, with indicators returning to standards, owners can apply for or renew SLF by submitting a professional reinforcement report, ensuring the asset has legal operation, mortgage, and transaction qualifications.
FiveSummary: Safety Rating After Professional Rectification
Settlement stopping + rectification is the most scientific “life-extending” method for tilted houses. “Rather than calling it repair, it’s more like a complete transformation.”
| Inspection Items | Status After Correction and Reinforcement | Untreated Tilt Condition (High Risk) |
| Foundation Stability | Pile Foundations Reach Hard Soil, No Longer Affected by Soft Soil Fluctuations | With the continuous rainfall during the rainy season, the risks become uncontrollable. |
| Seismic Resilience | Crack closure reinforcement with compliant seismic resistance | Stress concentration caused by tilting, highly prone to collapse at the epicenter |
| SLF Compliance | Complies with SNI standards, legally preserving asset value | Classified as non-compliant/hazardous structure, significant asset depreciation |
| Functional Use | Smooth operation of doors/windows, unobstructed drainage, stable equipment | Water leakage, jamming, loss of production precision |
We offer not just leveling, but comprehensive foundation treatment and structural reinforcement, making your home stronger than ever when facing challenges like earthquakes and heavy rains.
Does your home require an annual safety inspection (SLF) report submission? We can provide monitoring data and reinforcement evaluation reports that meet government requirements, assisting you in smoothly passing the review.