MMC Diving Services

"Since 1964"

24 hour Emergency Line: 01983 864 330

  • We operate as both main contractors and as specialist sub-contractors and would be pleased to discuss or tender for any marine civil engineering related projects that you are involved with.

  • We aim to provide the very best service available. We love what we do and this is transparent in our work and your results.

    MMC has a range of hydraulic, pneumatic tools and burning, welding equipment available. Please contact us to discuss your requirements.

  • We develop lasting relationships by exceeding expectations. We operate as both main contractors and as specialist sub-contractors and would be pleased to discuss or tender for any marine civil engineering related projects that you are involved with.


    MMC are specialist providers of access engineering solutions including rescue, rope access and confined space works. The combination of these services allows MMC to offer innovative solutions to various challenging tasks, often in hazardous and difficult working conditions.

    We believe that it is our commitment to safety and innovation, as well as our multi-skilled personnel.

  • Our equipment is maintained to a very high standard in our own workshops and is subject to our stringent in-house, planned maintenance procedures carried out by our skilled technicians.

    All maintenance, logs, inventories and certificates are networked, uploaded and viewable on every site.

  • We strive at all times to maintain our excellent safety record and our goal for all projects is to have no incidents or accidents to our personnel, co-workers or the public at large, protecting not just ourselves but the reputation of our clients.

  • Although we provide services to most marine industries our core activities and specialist skills are concentrated in six key sectors:

    • Renewable energy
    • Submarine cables
    • Marine civil engineering
    • Water and waste water
    • Defence, construction and demolition
  • Drilling, cutting, burning, welding and breaking equipment, inspection, testing and surveying equipment, Cardox rock, concrete material breaking and blasting system, maintenance, construction and demolition, support vessels, boats and barges, grouting and concreting, breakout and replacement, thickness NDT, tanks and ships, interpretive report writing on any survey or inspection.

  • We would welcome clients to visit our facilities to reassure themselves of our capabilities and to appreciate our total commitment to their requirements.

  • We have a 55 foot barge, accommodation for a full dive team and welfare facilities on board which include a galley, office, shower and heads with a purpose built drying room. One hull is a workshop with storage space.

    Self sufficient with a 52 kva 3 phase generator and available to rent. Please contact us for further information.


MMC Two Diver Road Trailer Dive Spread

MMC own x2 Ifor Williams’s road towable box trailers, Plug and play, quick to mobilise and easy to move around a site, our trailers are all serviced annually by an approved (ITA) International trailer association authorised external supplier, as part of our integrated management system, our plant and equipment including our dive spreads are stripped/serviced and packed with an inventory ready for the next job.

MMC Two Diver Road Trailer Dive Spread

This dive spread was designed for ease of mobilisation and transportation, a fully compliant tidy unit, complete with everything needed to undertake a dive job, from helmets, compressor, de-fib, medical kit, O2, spill kits, underwater camera and lighting units and a spares box to cover every possible eventuality.

This self-contained road towable dive spread takes up a small footprint, and yet everything listed below has a home within the spread and it can be locked and left safely onsite.

Umbilical’s are connected and hung on the back doors for ease when tendering rather than spread over the deck, we can supply either electric or petrol LP breathing compressors, or if preferable we can supply a 16 cylinder HP 300 Bar gas quad.

MMC Two Diver Road Trailer Dive Spread


  • X2 50 Litre 300 Bar HP Cylinder back up gas supply with Bullnose Valves.
  • Certified HP whips & CE marked whip checks.
  • 2 Diver HP/LP Control Panel.
  • X2 option to have 150/125/75 or 50 meter umbilical’s, including camera and lights.
  • X2 bell Jackets and weights.
  • X1 Kirby Morgan 37.
  • X1 KMB 28
  • C Vision camera system
  • Cat C offshore medical kit, x10 man first aid kit, burns kit, eye wash.
  • De-fib.
  • 20 Liter medical 02 7 Bibs.
  • Amron 111 coms back up unit.

MMC Two Diver Road Trailer Dive Spread


There are 6 air supply inlets, 2 off LP and 4 off HP. There is also a crossover valve in order to allow air to pass from Diver 1 to Diver 2 if required and vice versa. The depth gauges are 100 mm dia with a range 0-70 metres (0-230 feet). The panel pressure gauges are 63 mm dia. The pressure gauges are dry filled.

  • All the inlets and outlets are 3/8 & 1/4 NPT.
  • All LP valves are quarter turn ball valves and the HP valves are 1/4 inch needle valves.
  • The LP air supply has a max inlet working pressure of 21 bar.
  • HP air supply has a max inlet working pressure of 300 bar.
  •  The basic outside dimensions are 460 mm H x 800 mm W x 290 mm D.
  • Inlets: HP ¼” NPT Female LP ⅜” NPT Female.
  • Outlets: Divers Supply ⅜” NPT Female.
  • Divers Pneumo ¼” NPT Female.

MMC Two Diver Road Trailer Dive Spread

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Royal Institute Of Navigation Association of Diving Contractors UK Health and Safety Executive Construction Line Royal Ocean Racing Club Royal Society for the Prevention of Accidents accredited Achilles UVDB Sea Start Offical Divers Buy With Confidence Sea Shield Approved Applicators HCL Clamping Solutions Joscar Registered