Understanding Modular Home Underpinning Costs
Different foundation types, such as pier and beam or concrete slab, influence the overall cost of underpinnings.
Soil stability and site accessibility can add to or reduce installation costs.
Choosing between standard and premium materials affects durability and price.
| Factor | Average Cost Range |
|---|---|
| Pier and Beam Foundation | $8,000 - $15,000 |
| Concrete Slab Foundation | $10,000 - $20,000 |
| Basement Foundation | $20,000 - $40,000 |
| Site Preparation | $2,000 - $7,000 |
| Permitting and Inspection | $1,000 - $3,000 |
| Soil Stabilization | $1,500 - $5,000 |
| Foundation Reinforcement | $3,000 - $8,000 |
The cost of modular home underpinnings varies based on foundation type, site conditions, and material choices. Pier and beam foundations tend to be more affordable but may require additional maintenance over time. Concrete slabs offer durability and a lower long-term maintenance profile, though initial costs are higher. Site-specific factors such as soil stability and accessibility can significantly influence installation expenses, potentially increasing costs if extensive site preparation is required.
Footings, piers, and support beams inside the foundation structure impact overall costs.
Materials like concrete, cinder block, or insulated panels influence pricing.
Proper drainage systems and waterproofing are essential for foundation longevity and affect costs.
| Service | Average Price Range |
|---|---|
| Foundation Inspection | $300 - $700 |
| Soil Testing | $400 - $1,200 |
| Pier and Beam Installation | $9,000 - $14,000 |
| Concrete Slab Pouring | $10,000 - $20,000 |
| Basement Construction | $25,000 - $50,000 |
| Foundation Reinforcement | $3,000 - $8,000 |
| Waterproofing Services | $2,000 - $5,000 |
| Drainage System Installation | $1,500 - $4,000 |
| Site Clearing and Grading | $1,000 - $3,000 |
| Permitting and Inspection Fees | $1,000 - $3,000 |