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Electrical and Mechanical  'one-stop-shop' engineering maintenance and installation service.

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Latest News

09 Feb

Mon Maintenance Services Ltd CALLS FOR S…

On 12/01/15 Mon Maintenance Services Ltd, from Anglesey, North Wales will today compete for the title of ‘National Public Champion’ in this year’s European Business Awards as the public vote...

01 Sep

Mon Maintenance Services Ltd named Natio…

MON MAINTENANCE SERVICES LTD from ANGLESEY, WALES has today been named as a National Champion for THE U.K in The European Business Awards sponsored by RSM; a prestigious competition supported...

08 Nov

MMS Become Fit 4 Nuclear

Mon Maintenance Services below have taken part in the Fit For Nuclear programme and benchmarked their performance against the standards demanded by the industry’s top tiers. Fit For Nuclear (F4N) is a unique...

06 Oct

Daniel Williams reaches the final in the…

Daniel Williams, once again going the extra mile, has been reached the finals in the National Skills Academy Nuclear's Regional (Wales) Apprentice of the year awards to be held on...

04 Aug

MMS Wins Judges Choice Business Award

The Cartrefi Conwy Judges' Choice Award went to Mon Maintenance Services Ltd, which was created by redundant workers at Anglesey Aluminium. Stephen Evans, director at Môn Maintenance, said: “We are delighted...

About us

Specialising in Mechanical, Electrical, Commercial and Catering Gas, Welding and Fabrication, we provide a Quality Comprehensive "one stop shop" installation and maintenance service. All our services compliment the each other and all departments work closely together to give the full package and excellent value.

Here at Môn Maintenance Services our reputation and range of services have made us preferred supplier and contractor of choice to many large blue chip organisations. We supply as main and sub-contractors, offer all our services on a reactive and proactive package basis and are available 24/7 for call outs.


Why use us?

Cost effective • Quick Response • Reduced Downtime • Quality • Proactive • Low Costs • All trades in one place • 24/7 service



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“I don’t employ a maintenance team, as an SME, I simply cannot afford to. However I have a factory full of quiet specialist and technically challenging equipment. What do I do when things go wrong? Call Mon Maintenance Services, is the simple answer.”

“MMS have provided the right skills at short notice when needed, and will come when they say they will! A prompt and honest level of service. Fast turnaround has helped us to maintain continuity of production regardless.”

“Personable, Expert, On Time - The quality of the personnel that Mon Maintenance has supplied us is very high.”