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Professional Under-House Void Filling & Subsidence Repair

Protect your property from soil subsidence and structural vulnerabilities. We provide expert void filling services for homes and buildings using high-quality precast concrete panels. Our solutions effectively prevent pest infestations, water accumulation, and further soil erosion, ensuring long-term structural integrity.

Service Highlights

Strong & Durable Securely sealed with premium reinforced concrete panels.
Engineer-Supervised Every project is assessed and overseen by professional engineers.
Long-Term Warranty Guaranteed quality of work for your ultimate peace of mind.

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ปัญหาที่ตามมา

What Causes Under-House Voids and How I CAN BUILD Fixes Them

Under-house voids are primarily caused by natural soil subsidence. In areas like Bangkok and its vicinity, the soft soil layers have a high settlement rate of approximately 10 centimeters per year. Furthermore, properties built on newly filled soil that hasn't fully compacted will experience continuous sinking, especially after 2-3 years of rainy seasons. As the soil continuously settles, the structural foundation becomes exposed, creating significant voids under the house.

If your home features a well-designed foundation system, the sinking soil will not damage the main structure. However, the exposed voids must be properly managed. ICANBUILD provides a permanent solution by securely installing reinforced concrete panels attached to the house beams. This method perfectly seals the voids and effectively prevents long-term soil subsidence issues beneath your home.

Team of Expert Engineers Every project is meticulously supervised and assessed by our professional engineering team.
End-to-End Service We provide comprehensive solutions, from initial site surveys and professional installation to thorough post-construction cleanup.

Service Information & Installation Process

Service Details & Pricing

Service Areas Bangkok, Nonthaburi, Samut Prakan, and Pathum Thani.
Starting Price 1,300 THB per meter (excluding VAT).
Site Survey Fee 500 THB (This fee is fully deductible from the total cost upon project agreement).
Warranty 3-Year comprehensive quality warranty.

4 Simple Steps to Secure Your Home

Free Initial Consultation Send us site photos and specific details via LINE for a free preliminary assessment by our experts.
On-Site Engineering Survey Schedule an appointment with our engineering team for a thorough structural evaluation at your property.
Quotation & Scheduling Review and approve the final quotation, then set the date for the installation service.
Professional Installation Our team executes the void filling using high-quality Prestressed Concrete Slabs, followed by a final quality check and complete site cleanup before handover.

Terms & Conditions

Our prestressed concrete slab void filling service is suitable for detached and semi-detached houses that are at least 1 year old.
The quoted prices do not include surrounding landscape improvements or other architectural modifications.

เปรี

Material Comparison for Void Filling

Precast Concrete vs. Conventional Slabs

Why is it crucial to use engineering-grade materials for under-house void filling? The comparison below highlights the significant differences in durability, structural safety, and long-term effectiveness between Precast Concrete Slabs and Conventional Materials.

Feature & Performance

Precast Concrete Slabs (Our Solution)

Strength & Durability

Highly durable, permanent solution that effectively withstands the pulling forces and settlement of soft soil.

Installation Depth

Highly customizable can be installed as deep as required depending on specific site conditions.

Structural Impact

Safe and efficient. It does not add excessive heavy loads to the attached main structure and can be easily replaced if needed.

Conventional Slabs / Boards

Strength & Durability

May provide an initially smooth finish but completely lacks the structural strength to resist soil movement.

Installation Depth

Cannot be installed deeply. Prolonged exposure to underground moisture causes rapid material degradation.

Structural Impact

Short lifespan and highly prone to moisture and pressure damage, often leading to frequent and costly repairs.

✅ Quality Guarantee Strong, durable, and built strictly to engineering standards. Every project is fully backed by a 3-Year Warranty.

Frequently Asked Questions (FAQ) - Under-House Void Filling

Frequently Asked Questions About Sealing the Side-of-House Gap

Q : How many days does the void filling installation process take?

A : Our installation process is highly systematic and efficient. On average, it takes our professional team just 1 day to complete a 20-meter length, providing a rapid solution with minimal disruption to your daily routine.

Q : How can I be sure the void covering slabs are securely attached and won't detach?

A : We utilize strict engineering standards, securely fastening the concrete slabs directly to the house beams using heavy-duty Stainless Steel Anchors. This precise anchoring process—extending securely from the base to the bottom of the beam—guarantees exceptional stability, preventing detachment and ensuring long-lasting durability against soil pressure.

Q : What are the exact thickness and depth specifications of the concrete slabs?

A : We use robust prestressed concrete slabs with a standard thickness of 5 centimeters for maximum strength. The installation depth varies depending on your home's ground beam level, but typically starts from a depth of 50 centimeters and goes deeper as needed to fully secure the settlement area.

Q : Can void filling be installed if my house has an underground termite piping system?
A : Absolutely. Our prestressed concrete slabs are carefully installed below the ground beam level, ensuring zero interference with your existing termite piping system. Additionally, our team meticulously maps out and bypasses septic tanks and drainage lines to prevent any long-term maintenance issues.

Q : How do you ensure the concrete slabs are deep enough to completely cover the voids?
A : Before installation begins, our expert team excavates the area to precisely measure the exact depth of the bottom ground beam. We then custom-cut the prestressed concrete slabs to match the specific depth and characteristics of your home's foundation, ensuring a perfect and completely sealed fit.

Proven Results The Benefits of Our Under-House Void Filling Service

Our before-and-after installation showcase highlights a complete transformation. We deliver long-term protection and exceptional value for your property through strict engineering standards.

Eliminate Water Pooling & Pests Securely sealing under-house voids prevents stagnant water accumulation and effectively blocks dangerous pests and reptiles from nesting beneath your home.
Premium Materials (Prestressed Concrete Slabs) We utilize high-strength prestressed concrete slabs designed to withstand long-term soil displacement, effectively preventing future soil erosion around your foundation.
Advanced Inspection Technology Our specialized diagnostic equipment allows us to thoroughly inspect hard-to-reach areas under your house, ensuring a precise and accurate assessment of hidden structural issues.
Supervised by Expert Engineers Rest easy knowing your home is in safe hands. From the initial survey to the final installation, every step is strictly managed by our professional engineering team.

Our Completed Void Filling Projects: Restoring Safety and Aesthetics

Transform hazardous under-house spaces into secure, structurally sound areas. Browse our gallery of actual completed projects to see the pristine results of our expert precast concrete installations. At I CAN BUILD, we pride ourselves on meticulous workmanship—ensuring a clean, beautiful, and completely safe environment upon every project handover. Say goodbye to soil subsidence worries for good.

Get Consultation & Site Evaluation

I Can Build Consultant and Engineering Co., Ltd. (Head Office)

21/346 Soi Ramkhamhaeng 142, Ramkhamhaeng Rd., Saphan Sung, Saphan Sung, Bangkok 10240