26 August 2025

Annual overhaul plans 2025/26

Update 26 August 2025

This year's annual maintenance period has increased from 668 overhaul days in 2024-2025 to 768 days. This reflects the reality of the age profile of the fleet which means more time and more intensive maintenance is required to ensure vessels are ready for the year ahead. We have shared the plan for vessels in the tables below.  

Background to overhaul and maintenance period and plan  

Maintenance and overhaul of every vessel is essential to ensure all required works can be carried out to reduce risk of in-service breakdowns. We have planned the maintenance period with the maximum level of detail and consideration – based on our team’s knowledge of the vessels and we will continuously monitor the progress over the period. Like last year, several vessels will be subject to an extended annual maintenance period, to meet the requirements for a peak of scheduled maintenance and survey work, which is commensurate with the fleet age profile. 

Monitoring progress of maintenance  

Our teams have planned the annual maintenance period with as much detail and consideration as possible, based on their knowledge of the vessels - and we are closely monitoring the progress of each maintenance period. We will ensure that colleagues, customers and communities are kept up to date as soon as we're aware of any challenges or changes to service. 

Working with communities  

This year's plan has been created building on lessons learned from previous years and is the best outcome possible for the network. We have closely listened to community feedback and we’re utilising the most suitable and preferred vessels wherever possible.  

You can view the overhaul and maintenance plan and schedule for all vessels in the tables below

Major Vessels 

Route Vessel Deployment Dates
Ardrossan/Troon-Brodick​ MV Glen Sannox (Troon) 20 October - 25 October 2025
MV Glen Sannox (Troon) and MV Alfred (Troon) 26 October - 2 November 2025
MV Glen Sannox (Troon) and MV Isle of Arran (Ardrossan) 3 - 8 November 2025
Vessel TBC (Troon) and MV Isle of Arran (Ardrossan) 9 November - 21 November 2025 (AM)
Vessel TBC (Troon) 21 November (PM) - 6 December 2025
MV Glen Sannox (Troon) and vessel TBC (Troon) 7 December 2025 - 26 March 2026
 Kennacraig-Islay  MV Finlaggan (single vessel) 20 October 2025 – 26 March 2026
Further consideration of second vessel once MV Isle of Islay and MV Loch Indaal come into service. 
Mallaig-Armadale MV Lochnevis All winter 
Mallaig-Small Isles MV Lochnevis All winter
Mallaig / Oban-Lochboisdale MV Lord of the Isles 20 October 2025 – 5 November 2025 
MV Isle of Mull (combined Castlebay service) 6 – 17 November 2025
MV Isle of Mull 18 – 22 November 2025
MV Isle of Arran 23 November – 9 December 2025
MV Lord of the Isles 10 December 2025 – 3 January 2026
MV Isle of Mull  4 – 29 January 2026
MV Lord of the Isles 30 January – 23 February 2026
MV Isle of Mull (combined Castlebay service) 24 February – 3 March 2026
MV Isle of Mull 4 – 26 March 2026
Oban-Craignure MV Loch Frisa (single vessel) 20 October 2025 – 9 December 2025
MV Loch Frisa and MV Isle of Arran 10 December 2025 – 15 March 2026
MV Isle of Arran (single vessel) 16 – 26 March 2026
Oban-Castlebay  MV Isle of Mull 20 October – 5 November 2025
MV Isle of Mull (combined Lochboisdale service) 6 November – 17 November 2025
MV Isle of Lewis 18 November 2025 – 31 January 2026
MV Isle of Mull  1 February – 23 February 2026
MV Isle of Mull (combined Lochboisdale service) 24 February – 3 March 2026
MV Isle of Lewis 4 March – 26 March 2026
Oban-Coll/Tiree MV Clansman 20 October 2025 – 3 January 2026
MV Lord of the Isles 4 January – 27 January 2026
MV Clansman 28 January – 24 February 2026
MV Lord of the Isles 25 February – 26 March 2026
Oban-Colonsay MV Clansman 20 October 2025 – 3 January 2026
MV Lord of the Isles 4 January – 27 January 2026
MV Clansman 28 January - 24 February 2026
MV Lord of the Isles 25 February – 26 March 2026
MV Isle of Arran will operate the service on Mondays except those Mondays where she is required elsewhere on the network. On these days the Monday service will be provided by MV Clansman. 
Uig-Tarbert/Lochmaddy MV Alfred 20 October – 24 October 2025
MV Hebrides 25 October 2025 – 24 February 2026 
MV Clansman 25 February – 25 March 2026
MV Hebrides From 26 March 2026
Ullapool – Stornoway (Ro-PAX) MV Isle of Lewis 20 October – 16 November 2025
MV Loch Seaforth 17 November 2025 – 26 March 2026
Ullapool – Stornoway (Freight Service) MV Hebrides 20 October – 23 October 2025
MV Isle of Arran 24 October – 1 November 2025
Vessel tbc (MV Arrow) 2 November – 15 November 2025
MV Loch Seaforth From 16 November 2025
Wemyss Bay – Rothesay MV Argyle and MV Coruisk 20 October – 10 November 2025
MV Bute and MV Coruisk 11 November – 2 December 2025
MV Bute and MV Argyle 3 December 2025 – 26 March 2026

 

Small Vessels 

Route 

Vessel Deployment 

Dates 

Barra-Eriskay 

MV Loch Alainn 

20 October 2025 - 10 November 2025 

MV Loch Bhrusda 

11 November 2025 – 3 December 2025 

MV Loch Alainn 

4 December 2025 – 26 March 2026 

Berneray-Leverburgh 

MV Loch Portain 

20 October 2025 – 30 January 2026 

MV Loch Bhrusda 

31 January 2026 – 22 March 2026 

MV Loch Portain 

23 – 26 March 2026 

Colintraive-Rhubodach 

 

MV Loch Fyne 

20 – 29 October 2025 

MV Loch Dunvegan 

30 October 2025 – 26 March 2026 

Fionnphort-Iona 

MV Loch Buie 

Until 21 October 2025 

MV Loch Riddon 

22 October 2025 – 12 November 2025 

MV Loch Buie 

13 November 2025 – 26 March 2026 

Gallanach-Kerrera 

MV Carvoria 

No overhaul impact 

Gourock-Dunoon 

MV Argyll Flyer and MV Ali Cat 

Until 25 October 2025 

MV Argyll Flyer 

26 October 2025 – 10 November 2025 

MV Argyll Flyer and  MV Ali Cat 

11 November 2025 – 20 February 2026 

MV Argyll Flyer 

21 February 2026 – 9 March 2026 

MV Argyll Flyer 

10 March 2026 – 26 March 2026 

MV Argyll Flyer and MV Ali Cat 

27 March 2026 onwards 

Gourock-Kilcreggan 

MV Chieftain 

20 October 2025 until 20 February 2026 

MV Ali Cat  

21 February 2026 – 9 March 2026 

MV Chieftain 

10 March 2026 – 26 March 2026 

Largs-Cumbrae 

MV Loch Shira 

20 October 2025 – 18 January 2026 

MV Loch Fyne 

19 January 2026 – 6 February 2026 

MV Loch Shira 

7 February 2026 – 26 March 2026 

Lochaline-Fishnish 

MV Lochinvar 

20 October 2025 – 13 March 2026 

MV Loch Fyne 

14 March 2026 – 26 March 2026 

Oban-Lismore 

MV Loch Striven 

20 October 2025 – 12 November 2025 

MV Loch Riddon 

13 November 2025 – 1 December 2025 

MV Loch Striven 

2 December 2025 – 26 March 2026 

 

Tarbert-Portavadie / Lochranza 

MV Loch Tarbert 

20 October 2025 – 27 October 2025 

MV Catriona 

28 October 2025 – 3 December 2025 

MV Loch Fyne 

4 December 2025 – 23 December 2025 

MV Catriona 

24 December 2025 – 26 March 2026 

Tayinloan-Gigha 

MV Loch Ranza 

20 October 2025 – 2 January 2026 

MV Loch Linnhe 

3 January 2026 – 21 January 2026 

MV Loch Ranza 

22 January 2026 – 26 March 2026 

Sconser-Raasay 

MV Hallaig 

No overhaul impact 

Tobermory-Kilchoan 

MV Loch Linnhe 

20 October 2025 – 02 December 2025 

MV Loch Riddon 

02 December 2025 – 26 March 2026 

 


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