How Much Does Narrowboat Hull Welding Cost in Maidstone?

What affects the price

Four things drive most of the cost on a Medway narrowboat repair: how much of the hull needs touching, the steel thickness you are starting from, whether the boat needs lifting out of the water, and access.

Boats moored at Maidstone itself, or further along toward Allington, usually need taking to a yard with a slipway or hoist, since there is no dry dock in the town centre. That lift-out, sometimes called coming out, typically adds a separate yard fee on top of welding labour, and this is often the part owners forget to budget for when comparing quotes.

A small patch over one pitted area is a very different job to replacing a full section of bottom plate, and a welder who has actually surveyed the boat in the water or on a cradle will always give you a more accurate figure than one quoting blind over the phone.

Typical price ranges

These figures are guides only. Every hull is different, and a proper quote should follow a hands-on inspection, ideally once the boat is out of the water and the old blacking has been removed so the bare steel can be seen.

• Small patch repair, one or two pitted areas up to around 300mm across: roughly £250 to £500 per patch, plus access
• Overplating a section of hull, welding new steel over worn but not holed plate: roughly £80 to £150 per linear metre, depending on plate thickness
• Baseplate or full side overplating on a 57 to 70 foot boat: often £2,500 to £6,000 or more for welding alone
• Dry docking, slipway or hoist-out fees near Maidstone: typically £150 to £400, separate from welding
• Hull survey before work begins: usually £200 to £400 if not already done

Rust, pitting and when welding is actually needed

Not every patch of surface rust needs a welder. Light pitting that has not eaten through more than around 20 to 30 percent of the original plate thickness can often be managed with grit blasting and fresh blacking rather than steel work, and an honest welder will say so rather than recommending welding for its own sake.

Where thickness readings come back below roughly 3mm on a hull that started at 6 to 10mm, or where there is active pinholing, welding becomes the sensible option because paint and blacking can no longer be relied on to keep water out. Boats that have sat on a mud berth near Maidstone through wet winters, or that have had electrolysis from poor bonding to shore power, tend to show this kind of wear earlier than boats kept afloat on clear moorings.

Getting a fair quote in Maidstone

Because there is no dry dock inside Maidstone itself, most hull welding for boats based here involves a trip to a yard with lifting facilities, commonly along the Medway toward Rochester, or road transport for smaller boats. Ask any welder you contact whether their quote includes this haulage and lift-out, or whether it is extra, since that single item can change a figure by several hundred pounds.

A written quote should separate labour, steel, and yard or haulage fees, and should state the steel thickness being used for any overplating. If one quote looks unusually low next to the others, check whether it actually includes getting the boat out of the water at all.