ISO Approved

Safety is our Priority

An integral part of our business is our commitment to the health & safety of our employees. We adhere to all guidelines issued by the Health & Safety Authority and are fully compliant with Safety Legalisation. Dermot Casey Tree Care is ISO 45001:2018 Safety Management Accredited. All arboricultural activities are risk assessed and strategically planned to the highest standards to ensure the health and safety of our employees, our clients and the general public. All operations conducted on public roads are carried out in accordance to Chapter 8 of the Traffic Signs Manual. We employ an award-winning team of NPTC certified arborists – all with extensive industrial experience and know-how. Staff are trained to the highest arboricultural and safety standards and use the industrial best practice methodology and equipment. ESB Networks awarded Dermot Casey Tree Care a Platinum ‘A’ Safety rating in 2018, 2019 & 2020.  It is this innovative and progressive outlook that enables Dermot Casey Tree Care to proudly say that they are the safest tree surgery company in Ireland!

Environmental Awareness

Dermot Casey Tree Care deems environmental protection as a fundamental part of its business and is fully committed to the prevention of pollution and reduction of its carbon footprint. Dermot Casey Tree Care conducts all its working activities in an energy efficient and environmentally responsible manner and are fully compliant with all applicable legal legalisation with particular emphasis on bio-security. Dermot Casey Tree Care is ISO 14001:2015  Environmental Management Accredited.


Dermot Casey Tree Care prides itself on the quality of tree work provided to clients along with efficiency in undertaking and completing works. Tree felling is conducted in accordance with BS3998:2010 (Tree Work) and BS5837:2012 (Design, Demolition and Construction). Dermot Casey Tree Care is ISO 9001:2015 Quality Management Accreditation and all works undertaken by our teams will be performed at the highest standards. This dedication to our work has earned us a solid reputation for quality, reliability and professionalism.