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Who are we?

Based in Holyhead, Anglesey and established in 2009, Mon Maintenance Services Ltd (MMS) is an Electrical and Mechanical Engineering Maintenance Contracting Company.

MMS offer a 'one-stop-shop' engineering maintenance service with a range of maintenance skills and trades including Mechanical Fitting, Industrial, Marine and Domestic Electrical and Welding/Fabricating to world-class standards having worked to, achieved and maintained accredited Quality, Health and Safety and Environmental management system certification..

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We come highly recommended.

With over 170 years combined experience in a wide range of disciplines and sectors of Engineering and Maintenance, we offer the full package - Mechanical, Electrical, Machining and Welding Fabrication all under one banner; cutting down on procurement time and cost. "One company, one process".

We have a proven track record and a no no-nonsense approach, getting the job done safely, right first time, with no defects and on budget.

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Company Reg No - 07020805 VAT No - 985 2600 02