Vapor barrier cost at Home Depot is typically about $25-$180 for a roll of polyethylene sheeting, depending on thickness and coverage. A crawl-space project can cost $150-$700 for DIY materials or roughly $1,000-$4,000 with professional installation; area, ground condition, sheet thickness, and labor are the main price drivers.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Poly sheeting roll | $25 | $70 | $180 | Price varies by thickness and roll size |
| DIY materials, 1,000 sq ft | $150 | $350 | $700 | Includes overlap, tape, and some fasteners |
| Professional crawl-space installation | $1,000 | $2,200 | $4,000 | Typical accessible space; repairs cost extra |
| Installed price per sq ft | $1.00 | $2.20 | $4.00 | Labor and site conditions affect rate |
What Home Depot Vapor Barrier Materials Usually Cost
Home Depot sells polyethylene film in different widths, lengths, and thicknesses, with local inventory and prices changing by store. A basic 6-mil roll may cost around $25-$80, while larger or thicker rolls can run $80-$180 or more. These are practical retail ranges, not guaranteed current shelf prices.
For a small repair or a shed floor, one roll may be sufficient. A 1,000-square-foot crawl space usually needs more than 1,000 square feet of film because seams need overlap and edges need to extend up foundation walls. Budget for roughly 10%-20% extra coverage beyond the measured floor area.
Assumptions: Standard polyethylene film, ordinary retail availability, and no unusual delivery charge.
How Poly Sheeting, Tape, and Labor Shape the Quote
A complete estimate may include more than the plastic roll. Seaming tape, fasteners or termination bars, utility knife blades, and protective gear add to the supply bill. Professional quotes may also include cleanup, surface preparation, hauling, and a minimum service charge.
| Quote item | Typical price | How it is charged | What changes it |
|---|---|---|---|
| Polyethylene sheeting | $0.05-$0.25 | Per sq ft of film | Mil thickness, roll size, coverage |
| Seam tape and fasteners | $25-$120 | Per project | Seam count and wall attachment |
| Installation labor | $50-$100 | Per hour | Access, crew size, local rates |
| Old barrier removal | $0.25-$1.00 | Per sq ft | Debris, moisture, disposal needs |
| Ground preparation | $100-$600 | Per project | Debris, sharp stones, minor leveling |
Labor commonly accounts for a large share of a contractor-installed job. A simple accessible crawl space may take a two-person crew 6-12 hours; tight clearance, many piers, or wall attachment can extend the schedule. A 12-hour job at $75 per labor hour represents $900 in labor before materials and overhead.
Thickness and Crawl-Space Size Change the Material Bill
Six-mil film is a common budget choice for basic ground coverage, while 10- to 20-mil reinforced products cost more but resist punctures better. Heavier material may be useful where workers must crawl over it or the soil has sharp debris. It does not correct drainage or standing-water problems by itself.
Area affects both the number of rolls and the time required to fit sheets around piers. A 500-square-foot space may need about 550-600 square feet of film after overlap; a 1,500-square-foot space could require approximately 1,650-1,800 square feet. Check actual roll dimensions and usable coverage before comparing per-roll prices.
Wall coverage also changes the calculation. Extending film 6-12 inches up foundation walls uses more material than covering only the soil, while extensive wall coverage or sealed seams can require additional tape and attachment supplies.
Installed Pricing for a 1,000-Square-Foot Crawl Space
For a clear price comparison, the following examples assume ground coverage, basic seam overlap, and ordinary access. Local quotes can differ substantially, especially where inspection, moisture control, or repairs are included.
| Job scenario | Materials | Labor and extras | Estimated total |
|---|---|---|---|
| DIY, 6-mil film, clean soil | $150-$350 | $0-$100 for tools or delivery | $150-$450 |
| Contractor, 6-mil film, accessible | $250-$500 | $750-$1,200 | $1,000-$1,700 |
| Contractor, reinforced film, obstacles | $500-$900 | $1,300-$2,200 | $1,800-$3,100 |
The lowest total generally assumes a clean, dry, accessible space and ground-only coverage. A quote that includes wall fastening, pier wrapping, old plastic removal, or moisture remediation should not be compared directly with a basic ground-cover price.
What Removal and Ground Prep Add to a Crawl-Space Job
Replacing an existing barrier can add $250-$1,000 for removal and disposal across a typical residential crawl space. The lower end applies to loose, relatively clean plastic; wet, torn, or contaminated material may take longer to bag and haul away.
Minor cleanup and leveling can add $100-$600. Persistent water, damaged insulation, mold treatment, or drainage work can push the total far higher and should appear as separate quote items. Ask whether the estimate includes disposal, surface preparation, and wall attachment rather than assuming they are bundled.
DIY Materials Versus Professional Installation
DIY makes sense for a simple floor with adequate headroom and no active water problem. Materials for 1,000 square feet may run $150-$700, but the work involves measuring, cutting, overlapping seams, and fastening edges without leaving gaps. Protective clothing and a headlamp may add $20-$100 if not already owned.
Professional installation may cost about $1,000-$4,000 for a typical crawl space, with difficult access or extensive sealing increasing the price. A contractor can also identify conditions that prevent a barrier from performing well, but the scope should specify exactly what gets covered and sealed.
How Regional Labor Rates Affect the Installed Price
Labor tends to be higher in major metropolitan markets than in lower-cost rural areas. As a budgeting adjustment, urban quotes may be 10%-25% above a national-style estimate, while some rural markets may come in 5%-15% below it. These differences are not universal; contractor availability and travel distance also matter.
Season and scheduling can affect availability more than the price of the plastic itself. Request two or three itemized local estimates, and compare the same film thickness, square footage, wall coverage, removal work, and warranty terms.
Ways to Lower the Vapor Barrier Price Without Cutting Coverage
Measure the crawl-space floor and note piers, access openings, and wall height before buying supplies. Planning sheet direction and seam locations can reduce waste, but skimping on overlap or using too little material for the walls can create gaps that defeat the purpose of the installation.
Choose thickness based on expected foot traffic and soil conditions rather than automatically buying the heaviest film. Clear loose debris before installation when safe, and ask contractors to price removal, repairs, and optional upgrades separately. Compare complete installed scopes, not just the price of a Home Depot roll.