Agricultural drainage
Dan McNally starts out in agricultural drainage in County Monaghan.

A family business since 1958
From agricultural drainage and railway decommissioning to wind turbine decommissioning, McNally’s has moved with Ireland’s changing infrastructure.
Where it started
Dan McNally started in 1958, in agricultural drainage, then railway decommissioning. The office is still on Dawson Street. McNally’s is the EU and global company in the Forsyth of Denny group.
Dan McNally starts out in agricultural drainage in County Monaghan.
The company moves into railway decommissioning, with bigger machines and harder logistics.
The first crane is bought, and the company moves into crane hire.
The business is incorporated as Dan McNally Limited.
A new generation of management takes the company into heavy cranage and specialist lift engineering.
A 400-tonne crane erects 600kW Vestas turbines. It is the beginning of more than 25 years in wind energy.
McNally’s offers its first combined crane and installation package to a wind turbine manufacturer.
Sister company Windhoist is set up to combine heavy cranage with mechanical and electrical installation, so one contract covers the cranes and the erection crews. Around the same time, the team decommissions eight turbines at Drumlough Hill, Co. Donegal, including site management and civil works.
McNally’s cranes go to work in Australia for the first time, alongside sister company Windhoist, the first in the country to offer both the cranes and the crews to erect turbines (Access Briefing, 2008).
Cranes & Access profiles the team’s experience on difficult Irish and UK wind sites and its integrated approach to turbine work. Source: Cranes & Access, August/September 2011, pp. 16–23 (PDF).
The group acquires Forsyth of Denny, the crane hire company based in Denny, Stirlingshire (Vertikal, 2016).
McNally’s cranes take down the last turbines at Bellacorick, Co. Mayo. It was Ireland’s first commercial wind farm and had generated since 1992. The site is redeveloped as Oweninny Wind Farm Phase 3.
A crane and installation package to install three Nordex Delta4000 turbines at Carrigdangan wind farm, Co. Cork.
McNally’s supports the full wind lifecycle, from installation, major component exchange, facilitating repowering and decommissioning through to end-of-life dismantling and component recycling, with mobile crane capacity up to 700 tonnes.
More than 6,150 wind turbines erected, from Ireland and the UK to Australia, Morocco and the Falklands.
Machine firsts
Machines and methods McNally’s brought to Ireland and the UK first. Where a trade press report backs a claim it is linked; the rest are the company’s own account and have not been independently verified.
Then and now
The low-loaders are how a heavy crane reaches a difficult site.
On site
Wind turbine installations, heavy lifts and vessel work from the project archive.




From the archive
An eight-page industry article covering McNally’s wind experience, crane strategy and approach to difficult sites. Fleet references in the article are historical.