Every Service Matters2

Moss And Hall Engineering 
Hertford SG14 3NU
01992 551334


  • Opening hours: 08:00-17:00 Monday-Friday 08:00-12:00 Saturdays
  • 3 Warrenwood Ind Estate,
    , Hertfordshire SG14 3NU

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Established 1976. We are an MOT test centre based in Hertfordshire. We also offer servicing, diagnostics and full repairs on all makes and models.


Diagnostics and Repairs
Clutch/Gearbox work
Engine Rebuilds

Services offered:

  • Air Conditioning icon
    Air Conditioning
  • Auto Electrical icon
    Auto Electrical
  • Courtesy Cars or Drop Off Available icon
    Courtesy Cars or Drop Off Available
  • Engine Diagnostics icon
    Engine Diagnostics
  • Engine Rebuild icon
    Engine Rebuild
  • MOT icon
  • MOT Preparation icon
    MOT Preparation
  • Performance Restoration Service icon
    Performance Restoration Service

BG products stockist for:

  • BG EPR Engine Performance Restoration BG EPR Engine Performance Restoration

    BG EPR Engine Performance Restoration flush: A revolutionary formula with proven 'ring-clean' technology. BG EPR is a quick and effective blend of cleaners that will soften, emulsify and dissolve those hard to remove fuel gums that clog rings and will usually do it in 15 minutes. Compression will increase with removal of these deposits. Safe for use in petrol, diesel and rotary engines.

  • BG44K Fuel system cleaner BG44K Fuel system cleaner

    BG 44K Fuel System Cleaner: Regarded by many as the best fuel system cleaner of its kind. BG 44K cleans fuel injectors, valves, O2 sensors and the combustion chamber. It will also have a cleaning effect on the catalytic converter. Contains high level of Polyether Amine, recognised as an effective treatment for removing carbon deposits.

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