Cost of Subfloor Replacement
Replacing a subfloor is a crucial step in ensuring the stability and longevity of your flooring. The cost varies based on several factors including material choice, room size, and labor complexity. Understanding these elements helps in planning a comprehensive budget for your project.

Larger rooms require more materials and labor, increasing overall costs. Complex layouts with multiple corners or irregular shapes can also add to the expense.

Different materials such as plywood, oriented strand board (OSB), or cement board vary in cost and durability, impacting the total replacement price.

Extensive damage or rot may necessitate additional repairs or removal of underlying structures, influencing the overall cost.
Factor | Estimated Cost |
---|---|
Standard Room (150 sq ft) | $1,200 - $2,000 |
Removal of Old Subfloor | $300 - $700 |
Material (Plywood or OSB) | $30 - $50 per sheet |
Labor Costs | $50 - $70 per hour |
Additional Repairs | $200 - $1,000 |
The total cost of subfloor replacement can range significantly based on the specifics of your project. On average, homeowners might spend between $1,200 and $4,000 for a standard room, including materials and labor. Factors like the extent of damage, choice of materials, and complexity of the space influence the final price. For larger or more complex areas, costs can escalate due to additional labor and materials required.
In addition to the basic replacement, certain internal components such as insulation, vapor barriers, or underlayment may add to the overall expense. Proper assessment and planning with a professional can help ensure accurate budgeting and a successful project outcome.

Adding vapor barriers can cost between $100 and $300, depending on the size of the area and material choice. It helps prevent moisture issues beneath the new subfloor.

Insulation costs typically range from $0.50 to $2 per square foot, playing a role in temperature regulation and soundproofing.

Specialized fasteners and adhesives can add about $50 to $150 to the total cost, ensuring a secure and durable installation.
Related Service | Average Price |
---|---|
Floor Joist Repair | $300 - $1,200 |
Subfloor Reinforcement | $200 - $800 |
Underlayment Installation | $1 - $3 per sq ft |
Floor Leveling | $500 - $2,000 |
Moisture Barrier Installation | $150 - $400 |
Floor Inspection and Assessment | $100 - $300 |
Old Floor Removal | $200 - $600 |
Interior Demolition for Floor Replacement | $300 - $1,000 |
Concrete Subfloor Repair | $400 - $2,000 |
Structural Beam Reinforcement | $1,000 - $3,500 |