Contact Us    


51 Years as a family-run Business   New Car Stock


Derek Slack Fleet Servicing

Why choose Derek Slack Motors?

My father Derek, a time served mechanic, started business in 1973 servicing & repairing vehicles long before his first car sale, I too followed the same path gaining the mechanical knowledge critical to underpin a career in the motor industry. This is why servicing, repairs & MOT’s to cars, vans & pick-ups have formed the cornerstone of our business and are jobs we endeavour to complete to the highest standard.

1973 was a long time ago, we now have two workshops with 13 bays, 9 ramps (up to 5 tonnes), plus an MOT bay, fully equipped with the latest diagnostic equipment, air con re-gassing for R134a & R1234yf, four wheel alignment, ADAS radar recalibration, tyre changing & balancing, electronic brake bleeding, Electric Vehicle charging & a large on site Parts Department.

We have the resources and expertise to maintain any fleet of vehicles, regardless of make and provide bespoke fleet management. We subscribe to the popular 1Link & Fleet Assist billing platforms. We service a number of local fleets, anything from three car companies to larger organisations with more structured requirements like Cleveland Police. Ensuring our client’s fleets are well maintained, eliminates vehicle down-time, cutting expenditure, maximising productivity and increasing efficiency. Use our decades of experience to reduce your fleet’s downtime & increase your drivers productivity & your bottom line by using a single, trusted, family motor retailer to supply your business or organisation with a top-class fleet solution.

Tony Slack - Managing Director


Meet the Service Team

Meet the Derek Slack Motors Service Team. The unsung heroes who work tirelessly to keep your vehicles on the road. As demand for our services grows, so does our team, who between them possess many years of experience & technical knowledge.

When you rely on something as much as your fleet, it’s reassuring to know everything’s working exactly as it should. Our factory trained technicians have access to the latest diagnostic equipment and use only high quality parts designed for longevity and to reduce wear and tear. They have the latest technology at their fingertips, endeavouring to repair your vehicle correctly, first time, every time, saving you both time and money in the long run. 1link Service Network has become the industry standard for the provision of the complete service, maintenance and repair function, through the definition of supplier networks, service booking, electronic authorisation and payment processing for cars, LCVs, trucks and plant. Starting with the definition of the overall supplier network and then specifying an individual repairer, you can create a booking online for future SMR work. Subsequently a cost estimate and an authorisation request will be generated electronically, followed by on-line authorisation, or via the integral 1link rules based authority engine, and then receive an electronic invoice for payment.

Emergency Servicing

Derek Slack Motors provide the maintenance contact for Middlesbrough Police. The contracts are awarded by the Office of the Police and Crime Commissioner. Barry Coppinger, Cleveland’s Police and Crime Commissioner, said: “Police vehicles have to be on the road every day of the year and the contract allows us to work with Derek Slack Motors who provide a fast, priority service. We need suppliers who can MOT and service cars as well as provide ad hoc repairs, which can be extensive. Getting involved with local partners is something which we are keen to foster and maintain.”

Police Fleet Servicing
Cleveland Police awarded the fleet maintenance contract to Derek Slack Motors after rigorous scrutiny of our equipment and tehnical expertise, ensuring we had the skills to look after the Force’s varied stock of more than 300 vehicles including BMWs, Peugeots, Vauxhalls and Škodas.


Recently we supplied Cleveland Fire Brigade with 14 new Škoda Octavia Scout Estate Cars. Karen Winter, Director of Corporate Services said, ‘This deal has allowed us to standardise our fleet and provide vital vehicles to our Flexible Duty Officers, so they are able to respond to incidents quickly and safely and in all types of conditions, as these cars have 4x4 ability. It is very important to Cleveland Fire Brigade that we work with local businesses and ensure that we are getting value for money across all aspects of our business. This addition to our fleet allows us to continue supporting safer, stronger communities across Cleveland.’

Managing Director, Tony Slack, visited Endeavour House to ensure the safe delivery of the vehicles. He said, ‘We are delighted to continue our 20 year relationship with Cleveland Fire Brigade to supply, service and maintain vehicles and support our local Fire Brigade in keeping our communities safe.’


Do you know what a constant velocity gaiter is? Or a dual mass flywheel?

You will with our new workshop videoing program.

Should our Technicians find a fault while working on one of your vehicles, they will now text you a link to a video that takes you virtually to our workshop, allowing our technician to show you the work needed while it’s still on the ramp. This makes it quick & simple to understand what’s required, breaking down confusing jargon and allowing you to make more informed decisions quickly.

Derek Slack Motors Ltd is authorised and regulated by the Financial Conduct Authority for credit broking and insurance distribution activities under reference number 309295 – we are a credit broker not a lender.