mobile automotive locksmith & ecu Tuning specialist in hartlepool

JH Auto Developments Ltd is based within the Hartlepool area offering a full range of

locksmith and bespoke services you are unable to find elsewhere.

Tuning Specialist

We offer a mobile remapping service that comes to you - by using this you dont need to take time off work as we bring our latest technology to you. Providing bespoke calibrations to ensure ultimate performance tailored to how you want it.

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Automotive locksmith

We are trained and qualified to provide a range of Locksmith services ranging from spare keys to non-destructive entry when all keys are lost. With our regulary updated equipment we can diagnose and repair immobiliser related issues.

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Fully Mobile Services

Pride is taken to offer all services mobile at a suitable location ensuring convernience for you. This makes us unique in the way we operate as it enables us to price competivitely while your vehicle has minimal time off the road.

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We are JH Auto Developments LTD.

bespoke automotive services

We are a Veteran owned business offering a Bespoke Automotive Service with the goal to provide an alternative to main dealers and expensive companies. By amending how we conduct our work through years of research and operating, we have designed a unique business, now providing most services that you are unable to find elsewhere.


Firstly, we are qualified Auto Locksmith's meaning we have the knowledge, training and confidence for all areas this may include such as programming spare or replacement keys, gaining entry without damage or programming immobiliser related modules.

Our speciality: Engine Control Unit (ECU) remapping to improve vehicle drive ability, performance and all-round responsiveness on petrol and diesel engine cars, vans, and trucks.

Utilising a range of modern equipment and tooling ensures great satisfaction and best customer experience especially with access to most dealer diagnostics software.



We will work around you

  • We make sure we can do the work before taking the task – if it is a new service, we will offer advice before proceeding. 
  • With us, we explain the risks upfront allowing an informed decision to be made before going ahead. In many cases we may be more expensive but when the task goes wrong, we don’t disappear.
  • Numerous companies or customers contact us to repair failures, were the customer chose others by price.

Why choose us?

  • Professional – Offering a quality service, the right image, time and financial investments ensures a service that will be remembered.
  • Reliable – Completing each job quickly is great but that must be followed while maintaining the high standards expected.
  • Experienced – Many years in the industry along with investment in training gives utmost competency. Be sure when problems occur the experience becomes vital.
  • Transparency – Here to help you, the customer; we are honest and what you see is what you get, all advice and work is genuine.

Find your vehicle

If you’re looking for a way to improve your vehicle’s performance, consider ECU remapping. This process involves recalibrating the engine control unit to optimise the way it runs.


We consider factors like your vehicle make and model, driving habits, and desired outcomes. This ensures we deliver the best possible results. Contact us today to schedule a consultation for ECU remapping for your vehicle. We’ll be happy to answer questions and help you get started.


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