Sailaway vs Fully Fitted Narrowboat: Which Should You Choose?
You have decided you want a new-build narrowboat. Now you face a question that trips up almost every first-time buyer: do you go sailaway or fully fitted?
The difference sounds straightforward. A sailaway gives you the steel shell, engine, and basic systems. A fully fitted boat is complete and ready to live on from day one. But the decision goes deeper than that, and getting it wrong costs tens of thousands of pounds and months of stress.
This guide explains exactly what you get with each option, what each really costs, and how to work out which route makes sense for you.
What Is a Sailaway Narrowboat?
A sailaway narrowboat is a completed steel hull fitted with the core mechanical and safety systems, but with no interior fit-out. You take delivery of a boat you can move under its own power, but not yet live on.
Typically, a sailaway includes:
The welded steel shell (baseplate, sides, cabin sides, roof)
Main engine and gearbox
Fuel tank
Rudder and tiller (or centre control)
Basic electrical system (alternator, battery bank, shore power connection)
Blacking on the hull below the waterline
Windows and doors (openings prepared or fitted)
Gas locker
What it does not include:
Kitchen (galley)
Bathroom and toilet system
Bedroom layout and storage
Heating system and radiators
Flooring, ceiling lining, wall insulation and cladding
Cabinetry and joinery
Water tanks (sometimes) and plumbing
12V and 240V electrical fit-out
Navigation lights and instrument panel (sometimes)
You then either fit the interior yourself, hire a fit-out specialist, or arrange a separate fit-out with another yard.
What Is a Fully Fitted Narrowboat?
A fully fitted narrowboat, sometimes called a "turnkey" or "complete" build, is ready to live aboard on the day you collect it. The builder designs and installs every element of the interior to your specification, including all systems, finishes, furniture, and fittings.
At JD Narrowboats, a fully fitted build means we handle everything from first sketch to final snagging. You choose your layout, specify your galley, select your heating system, and agree every finish. We build the whole boat in-house at our Shardlow workshop, and you take delivery of a boat that works exactly as you planned it.
Nothing is handed off to a third party. Nothing is left for you to organise later.
The Real Cost Difference
This is where buyers often get a nasty surprise.
A sailaway shell from a reputable UK builder currently starts at around £50,000 to £80,000 for a 57ft boat. That figure looks attractive. But the interior fit-out costs more than most people expect.
A professionally fitted interior on a 57ft narrowboat runs from £40,000 to £80,000 or more, depending on the quality of systems, appliances, joinery, and insulation. Add the two together and you are frequently looking at the same price, or more, than a fully fitted bespoke build, with significantly more time and stress involved.
The cost comparison tends to look something like this for a 57ft liveaboard spec:
Sailaway route:
Sailaway shell: £55,000 to £75,000
Professional fit-out: £45,000 to £80,000
Project management, delays, contingency: £5,000 to £15,000
Total: £105,000 to £170,000+
Fully fitted bespoke build:
Complete build, all in: £130,000 to £170,000+
The gap is often smaller than it first appears, and that is before you factor in the time, the decisions, and the risk.
The Hidden Costs of the Sailaway Route
Beyond the fit-out bill itself, the sailaway route carries costs that are easy to underestimate.
Time between shell and liveable boat. A professional fit-out takes three to six months. During that period, you may need to pay mooring fees for a boat you cannot use. If you have sold your home or given notice on a rental, that creates real pressure.
Managing multiple contractors. You will need to coordinate plumbers, electricians, gas engineers, joiners, and painters. Each has their own lead times. Delays compound. On a fixed-price fully fitted build, all of that is the builder's problem to solve.
Decisions without guidance. Fitting out a sailaway means making dozens of technical decisions without the benefit of a builder who has done it hundreds of times. What insulation thickness? What heating system? What toilet configuration? These choices matter for years.
Warranty complexity. On a fully fitted bespoke build from a single builder, your warranty is clear. On a sailaway with a third-party fit-out, responsibility can become blurred if something goes wrong. Who is liable for a damp problem: the shell builder or the fit-out yard?
Who Is the Sailaway Route Right For?
The sailaway route genuinely suits a small group of buyers. You are in that group if:
You have strong practical skills and time. Some buyers genuinely enjoy doing their own fit-out, or have trades backgrounds that make it viable. If you can do the joinery, plumbing, and electrical work yourself to a competent standard, the sailaway route can save money and give you a deeply personal result.
You are buying a holiday boat, not a home. If the boat is for weekends and holidays rather than full-time living, a simpler, lower-cost fit-out may meet your needs without compromise.
You have very specific requirements that no single builder covers. This is rare, but some buyers have highly unusual layout requests, or want to integrate bespoke systems that they prefer to source and fit themselves.
For most people reading this, particularly those planning full-time or extended cruising in retirement, the sailaway route adds complexity without a meaningful saving.
Who Is the Fully Fitted Route Right For?
Most retirees planning boat life benefit from a fully fitted build. Here is why.
You are making a six-figure decision that you will likely live with for a decade or more. The design needs to be right from the start, because unpicking a poorly planned galley or a heating system that cannot warm a 60ft boat costs thousands to fix.
A good bespoke builder does not just build to your instruction. They challenge assumptions, point out what works and what does not, and help you design a boat around how you will actually use it, not how you think you will use it on day one. That guidance has real value, and it only comes with a full build relationship.
At JD Narrowboats, we have been building bespoke boats since 2003. We have seen what retirees actually need after five years of full-time cruising, which is often different from what they thought they needed at specification stage. That experience shapes every consultation.
What JD Narrowboats Offers
We build fully fitted bespoke narrowboats at our Shardlow workshop in Derbyshire. Every boat is designed from scratch around the customer's lifestyle, cruising plans, and practical needs.
Our steel shells are built to a specification we are confident in: 10mm baseplate, 6mm lower sides, 5mm cabin sides, and 4mm roof. This is the same standard we have applied since we opened, because the hull is the one part of a narrowboat you cannot easily change later.
We install every system in-house. No outsourcing. No handoffs to third parties. And we welcome customers to visit during the build at our Shardlow wharf, so you can see exactly how your boat is taking shape.
Every completed build carries an 18-month warranty. We also carry out a boat safety certificate from day one as standard, which gives you an independent set of eyes over the work before you take delivery. New builds are covered by a declaration of conformity for the first four years, after which a standard boat safety certificate (currently around £300 with our inspector) applies.
If you want to understand more about how the build process works start to finish, our post on how long it takes to build a narrowboat covers the full timeline.
Sailaway From JD Narrowboats: Is That an Option?
Yes. We offer sailaway builds for customers who have a clear plan for the fit-out stage and want the security of a JD-built shell. Our sailaway boats are built to the same steel specification and quality standard as our full bespoke builds.
If you are considering this route, we would always recommend a conversation first. We can help you understand the realistic total cost and timeline, and make sure the sailaway specification gives you a solid foundation for whatever comes next.
You can find more information on our sailaway narrowboat page.
The Question Worth Asking
Before you decide between sailaway and fully fitted, ask yourself one question: do you want a project, or do you want a boat?
Both are valid answers. But they lead to very different purchases. If you want to arrive at your mooring, pour a cup of tea, and start living the life you planned, a fully fitted bespoke build is almost certainly the right choice.
If you want to roll your sleeves up, make every decision yourself, and build the interior around your own hands-on input, a sailaway gives you that freedom.
Most buyers thinking about retirement afloat are looking for the first. They want peace of mind, not a second job.
Thinking about a bespoke narrowboat build? We are happy to talk through your plans, no pressure, no sales pitch. Call us on 01332 792271 or book a consultation at our Derbyshire workshop.
Common Questions About Sailaway vs Fully Fitted
Can I get finance on a sailaway narrowboat? Some lenders will finance a sailaway, but the terms vary. Fully fitted boats with a clear valuation are generally easier to finance. Speak to a marine finance specialist before committing to either route.
Does a sailaway come with a warranty? The shell and mechanical systems are covered by the builder's warranty. The fit-out warranty depends on who carries it out and what contract you agree with them.
How long does a fit-out take after buying a sailaway? A professional fit-out on a 57ft boat typically takes three to six months, depending on the yard's workload and the complexity of your specification. Doing it yourself takes considerably longer.
Is a sailaway cheaper overall? It depends entirely on how you fit it out and at what standard. For a basic holiday boat, yes. For a full liveaboard spec comparable to a bespoke build, the savings are usually modest and the additional stress is significant.
Sources and further reading:
Canal and River Trust: https://canalrivertrust.org.uk
British Marine Federation guidance on new builds: https://www.britishmarine.co.uk
Boat Safety Scheme: https://www.boatsafetyscheme.org