Mobile Home Vapor Barrier Installation Cost | CountBricks

Understanding Mobile Home Vapor Barrier Installation Cost

Installing a vapor barrier in the crawl space of a mobile home is crucial to prevent moisture-related issues. In 2025, the cost for this installation varies based on material and labor. Here's a breakdown of current costs:

• Economy 6-mil poly barrier installed: $1,200 – $1,800
• Professional-grade 10-mil reinforced barrier installed: $1,700 – $2,600
• Premium 15-20 mil encapsulation system: $3,100 – $4,000

Key Cost Drivers

Several factors influence the cost of vapor barrier installation:

1. Material Thickness & Manufacturing Standard

Thicker barriers, like a 20-mil liner, offer better durability and cost around $0.55 per square foot.

2. Crawl Space Accessibility

Limited access can increase labor costs. Spaces under 24 inches require more time and effort.

3. Moisture & Mold Remediation

Additional costs of $1.25 – $2.00 per square foot may apply for water removal and mold treatment.

4. Geographic Labor Rates

Labor costs vary significantly by region, with coastal areas often being more expensive.

DIY vs. Hiring a Professional

Considering a DIY approach? Here's a cost comparison:

• DIY material kit for 1,000 sq ft: $450 – $650
• Tool rental and supplies: $120 – $180
• Labor: Two weekends if you have help

Hiring a professional adds 20-30% to material costs but offers faster completion and a workmanship guarantee.

Hidden Savings of a Proper Vapor Barrier

Proper installation can lead to significant savings:

• 12% reduction in HVAC energy use
• 30-50% fewer subfloor repairs over ten years
• Improved indoor humidity levels

Financing and Tax Incentives

Some states offer tax credits for encapsulated barriers. CountBricks tracks these incentives and can include them in your proposal.

Frequently Asked Questions

How long does a vapor barrier last?

A 10-mil liner lasts about 15 years, while a 20-mil can last over 25 years.

Do I still need ventilation once the barrier is installed?

Yes, either mechanical dehumidification or perimeter vents are required.

Can CountBricks create a take-off from my blueprints?

Yes, upload your blueprints to CountBricks for a quick take-off.

Next Steps

For a detailed estimate, start a free trial at CountBricks.com.

A CountBricks Case Study: Cutting Costs by 18% in Savannah, GA

Coastal Manufactured Homes partnered with CountBricks to reduce costs by 18% on a 24-unit renovation. By documenting site conditions, they optimized labor and material costs, saving $445 per unit.

Five Pro Tips for Faster, Cheaper Installs

• Schedule in late summer for lower humidity
• Pre-cut sheets to reduce waste
• Use bright liners for better visibility
• Add a termination strip for rodent protection
• Log photos for quality assurance

Integrating Vapor Barrier Work into a Broader Renovation

Sequence tasks to avoid double labor costs:

1. Perform plumbing and wiring upgrades first
2. Finish insulation or duct sealing next
3. Install the vapor barrier last

Leverage CountBricks for Ongoing Maintenance Revenue

CountBricks sends inspection alerts and tracks moisture data, offering upsell opportunities.

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