
Boat acid wash for hull & bottom in Toronto.
Brown waterline, mineral scale, mussel residue and stains that a pressure washer won’t move. We acid wash hulls and bottoms after haul-out, at your marina, yard or on the trailer at home, then neutralize, rinse and protect. From $500.
- Right after haul-out, before it dries
- Metal parts and trailer protected
- Wax or polish after, on request
Clean down to the outdrive.
The same cruiser after the wash: bottom, running gear and props clean. Short clip, no sound.
Growth and scale off, a clean bottom.
A cruiser on stands after haul-out: heavy growth and scale below the waterline, then the same bottom after our acid wash.

Brown waterline gone, right in the driveway.
A Crownline bowrider on its trailer at the owner’s house: stained, yellowed hull before, clean after the acid wash.

Boat acid wash in one minute
What is a boat acid wash? A marine hull cleaner with mild acids is applied to the gelcoat below and around the waterline to dissolve mineral scale, tannin and rust stains, the brown waterline and what is left after zebra mussels. It is left to work for a short time, then neutralized and rinsed off, so the hull is clean again without heavy scrubbing or sanding.
- What it removes
- Brown or yellow waterline, mineral scale and calcium, mussel residue, rust and tannin stains on fiberglass and gelcoat.
- When
- Best right after haul-out, while growth is still soft. Also before shrink wrap, before a sale and before spring launch.
- Price
- From $500 + HST. The price depends on the condition of the hull, how much growth and scale there is, and the size of the boat. Quote from photos.
- Where
- Anywhere: on the hard at your marina or yard, or on the trailer at home. No travel fee from Oakville to the Scarborough Bluffs.
What’s included in a hull & bottom acid wash.
Scope confirmed from photos. Every boat gets the same careful process: prep, acid wash, neutralize, rinse.
Prep & Pressure Wash (Core)
- Loose growth, slime and dirt pressure washed off
- Outdrives, props, trim tabs and metal fittings covered or masked
- Trailer and cradle pads protected where possible
Acid Wash (Core)
- Marine hull cleaner applied to the hull and bottom
- Waterline, boot stripe and bottom treated as needed
- Short dwell time, then worked by hand on heavy spots
Neutralize, Rinse & Protect
- Neutralized and rinsed thoroughly so no cleaner stays on the hull
- Final inspection of the waterline and transom
- Optional: wax, polish or ceramic after the wash
Every boat is different. The price depends on the condition of the hull, how much growth and scale there is and the size of the boat. Send a few photos and we quote before any work starts.
What Lake Ontario leaves on your hull.
Fresh water, but not clean water: minerals, tannins and mussels leave marks a normal wash can’t remove.
Brown waterline
The “mustache” line from minerals, tannins and oil. It dissolves with a hull cleaner instead of being scrubbed into the gelcoat.
Mineral scale
Hard, chalky crust below the waterline on boats left in all season.
Zebra & quagga mussels
After the mussels are scraped off, the residue they leave behind is what the acid wash takes care of.
Rust & tannin stains
Streaks from fittings, trailers and leaves on the gelcoat.
Before shrink wrap
Clean the hull before it is wrapped so stains don’t set all winter: boat shrink wrap.
Before a sale
A clean waterline makes a big difference in listing photos: pre-sale detailing.
Strong enough to work, careful with everything else.
Hull cleaners with acids work fast, so the process matters as much as the product.
Check the hull
How heavy the growth and scale are, and what metal is close by.
Pressure wash first
Loose growth and slime off, so the acid works on the stains.
Protect metal & trailer
Outdrives, props, anodes and trailer parts covered or kept away from the cleaner.
Apply, wait, work
The cleaner dwells briefly; heavy spots are brushed by hand.
Neutralize & rinse
Everything rinsed off thoroughly; nothing left on the hull or the ground under it.
Protect if you want
Wax or polish after the wash keeps the hull cleaner next season.
When to book an acid wash.
Growth is easiest to remove while it is still wet. Once it dries on the hull it gets much harder.
Right after haul-out
The best moment: growth is still soft. Book it together with your haul-out date.
Before shrink wrap
Clean first, then wrap: the boat goes into winter clean.
Spring, before launch
If it wasn’t done in the fall, before bottom paint or launch.
Trailer boats
Boats that stay on a trailer and sit in the water for weekends can be done any time.
Pair it with what the hull needs next.
Most owners book the acid wash together with one more step in the same visit.
Acid wash + wax
Clean hull plus a protective wax, so stains don’t stick as easily: waxing & ceramic.
Acid wash + polish
For dull, chalky gelcoat after cleaning: gelcoat polishing.
Acid wash + bottom paint prep
Before new antifouling: bottom painting.
Acid wash + shrink wrap
One visit at haul-out: clean, then shrink wrap.
Every hull, wherever it sits.
Boats of every size: bowriders, cruisers, sailboats, center consoles, pontoons and trailer boats, at the marina, in the yard or at home. Marina-friendly workflow: we coordinate access and work cleanly around dock rules.
Boat owners say it better.
Real reviews from our Google profile. Swipe or hover to read more. See all reviews on Google →
Our company used them at the Toronto International Boat Show and their team is world class! They were more than willing to start at 5am and work late into the night to finish cleaning over 50+ products.
Pavlo and his team turned our oxidized dull looking 1991 CS34 into a sparkling masterpiece!
Pavlo and his team did bottom painting and hull polishing on our Hunter sailboat, and everything turned out amazing.
These guys are the ultimate professionals. Great communication, obvious expertise and experience and fabulous job. I would hire them again in a minute!
I recently had my Sea Ray 550 detailed and ceramic coated, and I couldn’t be more impressed.
Pavlo and his team did an absolutely outstanding job detailing our Yamaha FX Cruiser.
Boat sat all winter dirty and came out looking new after their great work.
I asked for a sticker removal on my boat, and they went above and beyond by waxing, detailing, and thoroughly cleaning it.
Boat acid wash across Toronto & the GTA.
No travel fee: Oakville and Bronte, all of Mississauga incl. Port Credit, Etobicoke, Mimico, Humber Bay, downtown Toronto and the Islands, East York, North York south of the 401 and Scarborough up to the Bluffs. Travel fee shown in your quote: North York north of the 401, Vaughan, Richmond Hill, Markham, Brampton, Pickering, Ajax, Whitby, Oshawa, Burlington, Hamilton, Guelph, Kitchener, Niagara, Barrie and Lake Simcoe. We also come to trailered boats, driveways and storage yards across the GTA.
Marinas & yacht clubs we work at.
Don’t see your marina? If your boat floats in the GTA, text us and we’ll tell you. Subject to each facility’s contractor rules.
Downtown Toronto & Toronto Islands13 locations
- Toronto Outer Harbour Marina
- Harbourfront Centre Marina
- Marina Quay West
- Marina Four
- Queens Quay West Marina
- Polson Pier Marina
- RCYC (Royal Canadian Yacht Club)
- Queen City Yacht Club
- National Yacht Club
- Aquatic Park Sailing Club
- Toronto Island Marina
- Hanlan’s Point Marina
- Keating Channel Marina
East Toronto & Scarborough9 locations
- Ashbridge’s Bay Yacht Club
- Ashbridge’s Bay Marina
- Bluffer’s Park Marina
- Bluffer’s Park Yacht Club
- Cathedral Bluffs Yacht Club
- Scarborough Bluffs Sailing Club
- Water Rats Sailing Club
- Toronto Hydroplane & Sailing Club
- Highland Yacht Club
West Toronto & Etobicoke6 locations
- Mimico Cruising Club
- Humber Bay Park Marina (East & West)
- Etobicoke Yacht Club
- Lakeshore Yacht Club
- Mooredale Sailing Club
- Humber Bay Sailing Centre
Mississauga & Port Credit5 locations
- Port Credit Harbour Marina
- Port Credit Yacht Club
- Lakefront Promenade Marina
- St. Lawrence Park Boat Launch
- Credit Village Marina
Oakville & Bronte5 locations
- Oakville Harbour Marina
- Oakville Yacht Squadron
- Bronte Harbour Yacht Club
- Bronte Outer Harbour Marina
- Sixteen Mile Creek Public Docks
Burlington & Hamilton7 locations
- LaSalle Park Marina
- Burlington Sailing & Boating Club
- Royal Hamilton Yacht Club
- Hamilton Bay Sailing Club
- Macassa Bay Yacht Club
- Fifty Point Marina
- Harbour West Marina
Pickering, Ajax, Whitby, Oshawa & Clarington9 locations
- Frenchman’s Bay Marina (Pickering)
- Frenchman’s Bay Yacht Club
- Ajax Yacht Club
- Whitby Marina
- Port Whitby Marina
- Oshawa Harbour Marina
- Oshawa Yacht Club
- Port Darlington Marina (Clarington)
- Newcastle Marina
York Region & Lake Simcoe6 locations
- Keswick Marina
- Jackson’s Point Harbour
- Pefferlaw Marina
- Beaverton Yacht Club
- Friday Harbour Resort Marina (Innisfil)
- Barrie Marina
Niagara Region & St. Catharines5 locations
- St. Catharines Marina
- Port Dalhousie Pier Marina
- Port Weller Marina
- Niagara-on-the-Lake Sailing Club
- Grimsby Yacht Club
Georgian Bay & beyond (by arrangement)7 locations
- Port of Orillia
- Lagoon City Marina
- Penetanguishene Town Dock
- Midland Bay Sailing Club
- Bay Port Yachting Centre (Midland)
- Parry Sound Town Dock
- Sugarloaf Marina (Port Colborne)
Private docks & condo marinas4 locations
- Toronto private docks (Harbourfront, Islands)
- Condo marinas (Tip Top Lofts, Waterclub, Quay West and more)
- Custom residential docks (Mississauga Rd, Bronte, Oakville, King City)
- Trailered boats, driveways and storage yards across the GTA
Boat acid wash: your questions.
What is a boat acid wash?
How much does a boat acid wash cost in Toronto?
Is acid washing safe for gelcoat?
Will it remove zebra mussels?
When is the best time to acid wash a boat?
Can you do it on the trailer at my house?
Boat acid wash, in plain words.
Terms, explained
Boat acid wash
Hull and bottom cleaned with a marine acid cleaner, then neutralized.
Hull acid wash
Waterline and topsides stains removed from gelcoat.
Boat bottom cleaning
Growth, scale and residue removed from a fiberglass bottom.
Waterline stain removal
The brown “mustache” line dissolved, not scrubbed.
Zebra mussel residue
What is left after mussels are scraped off.
Haul-out hull cleaning
The wash done right after the boat comes out.
Hauling out? Get an acid wash quote.
Send a photo of the bottom and waterline, your boat length and where it is: marina, yard or trailer.
- Clear quote before any work starts
- No travel fee from Oakville to the Scarborough Bluffs
- Before and after photos
Every service, one mobile team.
Everything your boat needs, done at your marina by the same team.
Shrink wrapFrom $23/ft, spring unwrap included→
Shrink wrap pricesCalculator by boat type and length→
Patio & equipment wrapPatio sets from $395, trailers, equipment→
Gelcoat polishingOxidation removal from $65/ft→
Ceramic coating & waxLong-lasting gloss and UV protection→
Bottom paintingPrep, barrier coat, antifouling→
Hull & deck cleaningAlgae, waterline stains, grime→
Interior & odor removalCabin, upholstery, mildew, head→
Gelcoat repairChips, cracks, worn areas→
Teak cleaningClean, brighten, protect→
Canvas & enclosuresClear vinyl and isinglass care→
Engine bay & bilgeDegrease, odor control→
Decal removalOld graphics off, clean finish→
Caulking & resealingHelp prevent leaks at joints and hardware→
Jet ski detailingWash, polish, protect→
Weekly cleaningMaintenance all season→
Pre-season prepLaunch-ready, post-season cleanup→
Pre-sale detailingPhoto-ready for listing→
Gift certificateAny amount, digital delivery→A clean bottom before winter.
Send a photo of the hull and bottom. We quote from photos and can combine it with wax or shrink wrap.

