Costs to repaint the bottom of a boat vary by hull size, condition, and paint type. This guide focuses on the cost to apply underwater hull coatings, with practical ranges for U S buyers and clear drivers behind price swings. Buyers should expect major cost segments to be materials, labor, and time on site.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Project Scope | $1,200 | $2,800 | $5,500 | Small boat in good condition |
| Materials | $800 | $1,800 | $3,200 | Primer, epoxy barrier, antifouling paint |
| Labor | $1,000 | $2,400 | $4,000 | Labor for prep and coating |
| Equipment | $200 | $600 | $1,000 | Sprayers, masking, supplies |
| Disposal & Permits | $50 | $150 | $450 | Hull cleanup, local rules |
Overview Of Costs
Typical cost ranges for painting the bottom of a boat depend on hull length, condition, and coating selection. A small runabout in good shape may cost from two thousand to three thousand dollars for a basic bottom paint job. A mid sized cruising boat often falls in the three thousand to six thousand dollar range. Large vessels or premium coatings can push total bills above ten thousand dollars. The per unit cost per foot can run from roughly $15 to $40 per linear foot, depending on labor rates and coating complexity.
Cost Breakdown
Understanding the major cost components helps identify savings opportunities. The following table shows the typical 4 to 6 cost buckets, with a practical total and a sample per unit for reference. Assumptions include standard marine coatings, accessible hull, and normal water conditions.
| Materials | Labor | Equipment | Permits | Contingency | Taxes |
|---|---|---|---|---|---|
| Epoxy barrier coat, antifouling paint, primers | Hull prep, masking, application | Sprayers, brushes, rollers, PPE | Local disposal permit if required | Typically 5–15% of materials and labor | Sales tax varies by state |
| Totals | Varies by hull length and condition | Includes touch ups if needed | Minimal on most jobs | Includes unforeseen touch ups | Applied at checkout |
What Drives Price
Key variables include hull length, condition of the surface, and the type of bottom coating chosen. Boats under 25 feet with sound gel coat typically cost less. For boats in the 25–40 foot range, paint thickness, curing times, and surface preparation add cost. Premium antifouling with high copper content or advanced biocides raises price versus standard non antifouling coatings. Seaworthy prep such as sanding to bare fiberglass or removing old coatings adds hours and material use.
Pricing Variables
Practical ranges by hull size and coating type provide guidance. For a small vessel under 20–25 feet with mild wear, expect total between $1,200 and $2,800. For mid range boats 25–40 feet with typical wear, $2,800 to $6,000 is common. For large yachts or premium coatings, prices can exceed $8,500 up to $12,000 or more, depending on access and specialty coatings. Some shops quote per foot rates such as $15–$35 per linear foot for standard work plus fixed prep fees.
Regional Price Differences
Prices vary by region due to labor markets and coating availability. In the Northeast metro areas, expect higher labor costs and shorter seasonal windows, raising the top end by roughly 10–20 percent compared to the national midrange. The Southeast tends to be more affordable for simpler prep and quick turnarounds, with savings around 5–15 percent. Rural coastal markets may fall between these bands with moderate price variation of 0–10 percent.
Labor & Installation Time
Prep time drives a large portion of the bill. A typical hull prep phase includes cleaning, sanding, and masking before priming. For a small boat, labor may run 6–12 hours; for a larger 30–40 foot hull, crews may require 20–40 hours. Labor rates commonly range from $60 to $120 per hour depending on region and shop. Efficient crews and weather windows can reduce days on site and total labor costs.
Additional & Hidden Costs
Surprises often come from surface condition and access. If old coatings must be removed down to the substrate, costs jump. Sandblasting or chemical removal can add to the bill. Hardware removal, masking, and temporary launching or haul out coordination may incur extra fees. Delivery, disposal, and fuel surcharges can appear as line items at the end of a bid.
Real World Pricing Examples
Three scenario cards illustrate typical outcomes. Assumptions include standard prep, midrange coating, and ordinary access. The numbers are illustrative and may vary by marina and season.
Basic Scenario
Boat length 20–24 feet; old coating lightly worn; simple masking. Materials about 900; Labor about 1,400; Equipment 150; Permits 50; Contingency 200; Taxes 60. Total around 2,760. Assumptions: region inland, standard single color coat, no hull repairs.
Mid-Range Scenario
Boat length 28–34 feet; surface requires moderate prep; standard antifouling. Materials 1,400; Labor 2,200; Equipment 350; Permits 100; Contingency 400; Taxes 120. Total around 4,570. Assumptions: coastal region, two color scheme, mid tier coating.
Premium Scenario
Boat length 40–50 feet; heavy wear, old bottom removed, premium antifouling with biocides. Materials 2,200; Labor 3,600; Equipment 700; Permits 200; Contingency 800; Taxes 250. Total around 7,750. Assumptions: busy marina, complex masking, high end coating.
Assumptions: region, specs, labor hours
