• Emission Control offers from stock, a full range of HJS Systems that are compliant for TFL LEZ 3 & 4
  • Emission Control is HJS ’s key UK partner for the distribution of both Additive Based Systems such as Active Regeneration and Platinum Coated Systems with cutting edge proven technology that is fully guaranteed and backed by a world leading brand.
  • HJS and Emission Control recommend AR (Active Regeneration) Systems for intra urban stop–start applications and Platinum Coated Systems for vehicles working on medium to long haul journeys.
  • Our specialists will discuss with you in detail, your specific fleet requirements to find the correct system to suit your duty cycle from 110 Brake Horse Power to 500 Brake Horse Power in both standard and bespoke formats.
  • We offer free advice on installation and after sales support including spare parts, FBC supply and DPF cleaning services all on one site.
  • Professional installation of HJS Systems can be arranged subject to extra charge.
  • Approved examiners will inspect and sign off that the system has been installed in line with the manufacture’s recommendations and will also assist in the completion of the Vosa paperwork that needs to be submitted by vehicle owners for validation of your new HJS System.

  • Emission Control are Bosch GB’s official launch partner for Ad Blue Denoxtronic 1&2 module repair service for your Euro 5 selected catalytic reduction engines. Emission Control offers you a comprehensive service exchange programme that is backed by a guaranteed quality and service from a world leading brand.
  • Genuine Bosch NOx sensors, injectors and filters are available along with a free advice line.

LEZ Supplier



Setting the standard for filter cleaning
• DPF Cleaning & Testing
• Spare parts for LEZ systems
• Additives


denoxtronic systemlez