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Hull Gauge
Recomputed 5 Nov 2026, 03:30 UTC

Builder

Mainship prices and resale values

A used Mainship asks a median of £79,500 across 184 boats observed. The range loses value at about the same rate as comparable boats from other builders.

Median asking price of 184 boats listed since Sep 2020, in today's prices · Firm · asking, not sold

Loses a year, across the range
5.8%
of asking price for each year of age · level with other builders (same mix of types: 5.9%) · from 175 boats in 15 models
Published models
15 + 11 awaiting data
Boats observed
184
01

The range

Every model by the build years of the boats we have seen, grouped by range. The figure is the median asking price. Dashed models have too few boats to publish yet.

Trawler Motor boats · 6 models

Pilot Motor boats · 4 models

  • Pilot 30£42,500
  • Pilot 34£96,500
  • Pilot 34 Rum Runner II, 2 boats observed, built 2004–2005, not yet published
  • Pilot 31, 3 boats observed, built 2009–2010, not yet published

Mediterranean Motor boats · 2 models

  • Mainship 39 Mediterranean, 3 boats observed, built 1989–1992, not yet published
  • Mainship 41 Mediterranean, 3 boats observed, built 1989–1990, not yet published

Nantucket Motor boats · 1 model

Other models Motor boats · 13 models

Bars: build years of the boats we have seen (the middle 90%), not production runs, except where a source is citedpublished · median asking pricefewer than five boats, not publishedno recorded end (or start) year: the bar stops at the newest (or oldest) boat seen
02

Which hold value best

Share of asking price lost for each year of age. Shorter is better. The tick marks the same type of boat from other builders. Models need 20 boats across six build years, and a consistent fit, to be ranked.

The Pilot 34 is the only Mainship model with enough boats to rank: it loses 5.3% a year of age.

Bar: share of asking price lost for each year of age, from zero to 6% · tick and “type”: the same type of boat from other builders · asking prices, not sold
03

Against other builders

The five builders whose boats most overlap with Mainship's by type and length, on the same basis.

BuilderModelsBoatsMedian askingLoses a year
Sealine43401£122,500 Firm3.5%
Cabo13193£199,500 Firm4.4%
Luhrs16127£81,500 Firm5.0%
Silverton31342£69,500 Firm5.7%
Mainship15184£79,500 Firm5.8%
Formula41659£119,500 Firm7.8%
04

Every model

Sort by any column. Medians are asking prices, not sold prices. Models with fewer than five boats are listed with their count but no figure yet. Built is the span of build years among the boats we have seen.

Every Mainship model we have observed
Pilot 34Power11.0 m2000–200825£96,500 Firm5.3%
Mainship 40 Sedan BridgePower12.4 m1992–199919£51,500 Indicative—
Pilot 30Power—1998–200818£42,500 Indicative—
Mainship 390 TrawlerPower12.1 m1997–200417£99,500 Indicative—
Mainship 430 TrawlerPower13.1 m1999–200716£170,000 Indicative—
Mainship 34 TrawlerPower10.6 m1978–198315£24,000 Indicative—
Mainship 34 Trawler (2005–2008)Power10.9 m2005–200814£148,500 Indicative—
Mainship 400 TrawlerPower12.2 m2003–200813£168,000 Indicative—
Mainship 37 Motor YachtPower11.6 m1995–19989£60,500 Indicative—
Mainship 350 TrawlerPower12.1 m1997–19999£86,000 Indicative—
Mainship 34 Mark IIIPower10.4 m1983–19877£32,500 Provisional—
Mainship 31 Sedan BridgePower9.4 m1994–19986£30,000 Provisional—
Mainship 36 Double CabinPower11.0 m1985–19886£28,000 Provisional—
Mainship 34 Motor YachtPower11.1 m1996–19975£53,500 Provisional—
Nantucket 40 Double CabinPower12.2 m1984–19885£36,500 Provisional—
Mainship 47 Motor YachtPower14.3 m1995–19984awaiting data—
Mainship 39 MediterraneanPower11.9 m1989–19923awaiting data—
Mainship 41 MediterraneanPower12.5 m1989–19903awaiting data—
Pilot 31Power9.7 m2009–20103awaiting data—
Mainship 34 Trawler Mk IPower10.4 m1977–19782awaiting data—
Mainship 35 Open BridgePower10.7 m1989–19912awaiting data—
Mainship 40 ExpeditionPower12.6 m2008–20092awaiting data—
Mainship 430 Aft CabinPower13.1 m1999–20062awaiting data—
Pilot 34 Rum Runner IIPower10.4 m2004–20052awaiting data—
Mainship 41 Grand SalonPower13.4 m19901awaiting data—
Mainship 395 TrawlerPower12.0 m20111awaiting data—
05

Questions about Mainship prices

How much does a used Mainship cost?

A used Mainship asks a median of £79,500 across 184 boats listed since Sep 2020, in today's prices. The middle half ask between £40,500 and £114,500. These are asking prices, not sold prices.

Does a Mainship hold its value?

Across the range, a used Mainship loses about 5.8% of its asking price for each year of age, against 5.9% for the same types of boat from other builders. The Pilot 34 holds value best, at 5.3% a year.

Why is a Mainship model missing a price?

We publish a model once five boats have been listed. 11 models are listed above with their count so far, including the Mainship 47 Motor Yacht, the Mainship 39 Mediterranean and the Mainship 41 Mediterranean, and will get a published figure when they reach five.