Illustration for Boat Compound and Wax Cost

The quote that started this

In 2025, a boat owner in the Pacific Northwest asked a boating forum whether $2,000 was outrageous. Their boat was just under 20 feet, very chalky, and scuffed where it had rubbed a float. It needed a wash, heavy compound, maybe some wet sanding, then wax. The detailer charged $60 an hour and guessed about 30 hours. That’s about $1,800 in labor, or roughly $100 a foot.

Cheaper quotes had come in, mostly from car detailing shops. Replies were split. Some said the price was fair for the work, and one thought 30 hours sounded long for a boat that size. What settles it is the gelcoat’s condition.

Oxidation sets the price

Length is the multiplier. The gelcoat’s condition sets the rate.

One Seattle detailer sorts boats into three levels. Light oxidation still has some shiny areas. Medium looks mostly faded or splotchy. Heavy is matte with no shine, maybe chalky. A Delmarva detailer adds a quick test: run a hand across clean, dry gelcoat. White chalky residue on your palm means oxidation, and that takes machine correction.

A gelcoat compound maker’s finishing guide matches the work to those levels. Light oxidation gets a light cutting polish with wax. Medium gets a medium cutting compound with wax. Chalky, heavily oxidized gelcoat may need sanding first, then a heavy cutting compound. More passes cost more. The Florida detailer’s list says a second compound pass raises the price.

Gelcoat condition Typical work Listed prices (where) 20-foot boat
Clean, still glossy Wash and wax Norwest Marine, Pawcatuck, CT: $16/ft hullside up to 20 ft. Rogers LOTO Detailing, Lake of the Ozarks, MO: $14/ft hand wax exterior. Florida Boat Detailing, Central FL: $24/ft premium wash and wax $280–$480
Some oxidation One compound pass, then wax Florida Boat Detailing: $45/ft, one pass, under 25 ft. Rogers LOTO Detailing: buffing “typically” $25/ft $500–$900
Chalky, heavy oxidation Compound, polish, then wax or sealant Catalyst Marine Services, Delmarva: $50–$75/ft. Deckhand Detailing, Seattle: from $50/ft, whole boat. Viking Boat Services, Lake of the Ozarks: buff and wax from $50/ft $1,000–$1,500
Past chalky Wet sanding, then compound and polish Catalyst Marine Services: quoted in person. Florida Boat Detailing: extra passes cost more Quoted after inspection

The table shows the spread even on one lake. At Lake of the Ozarks, one shop lists buffing at about $25 a foot and another starts buff and wax at $50. Get two quotes from the same lake before you call one a rip-off.

What a fair quote spells out

The same per-foot number can buy very different jobs. Ask the detailer to put these in writing:

  • Which surfaces. One Connecticut marina’s wax rate is hullside only. The Seattle rate covers the whole boat. The Delmarva detailer says towers, hardtops and lots of stainless add hours.
  • How many compound passes. The Florida detailer’s $45 a foot covers one pass of compound and one coat of wax. A second pass costs more.
  • Where it stops. If the boat is in the water, the same price list works from the waterline up. It excludes barnacle removal and the chine.
  • Per foot or by the hour. The Connecticut marina bills compounding at $80 an hour, not per foot. Ask for an hours estimate either way.
  • Fees and deposits. The Florida detailer may add a marina fee. It wants 50% down on jobs over $1,000. A Lake of the Ozarks shop charges 30% after inspection, before work starts.
  • Color and layout. The Delmarva detailer puts dark gelcoat at the top of each band. It takes more passes to look clean.

Car detailers vs boat specialists

A car shop can do good boat work, but gelcoat isn’t clear coat. The Seattle detailer always uses a machine buffer for compounds. It says hand work leaves an uneven, splotchy finish. It quotes two to four days for a 30- to 50-foot boat. If a quote is much lower, ask how many hours it assumes and which marine compound they use.

Also ask what happens if they cut through. A small-boat maker’s care sheet says a pro should repair damage that pierces the gelcoat. Water can harm the laminate underneath. If you hire a car detailer who’s new to boats, point them to our guide on adding boat work to a car detailing business.

How long the shine lasts

The compound maker pairs every level with wax. The boat maker’s care sheet says to wax after compounding and at least twice a year. The Florida detailer says its polymer wax lasts about 3 months in exposed conditions. The Delmarva detailer says carnauba wax lasts 2 to 4 weeks in its summer heat. A polymer sealant lasts 3 to 6 months.

Shade is the cheap part. The same care sheet says to keep gelcoat out of the sun or under a canvas cover when not in use. It warns that non-porous sheet plastic can trap moisture. If you wrap for winter, follow our pre-shrink-wrap clean. Pontoon owners should read about chalky pontoon panels instead. Aluminum isn’t gelcoat.

How we check every number: methodology.

Sources

Based on 10 sources · How we price

Checked 2026-10-09.