Table of Contents
Higher Parts Costs and Specialist Tools
EVs rely on a handful of high‑value components—battery packs, electric motors, power electronics, and sophisticated software—that are far more expensive than the parts found in a conventional internal‑combustion engine. The AX Repair Index, which tracks repair costs across the UK, shows that the average EV repair bill is £6,363, compared with £5,338 for an ICE vehicle—a 19.2 % premium. The index also records that EV repairs take 25 days on average, versus 23 days for combustion‑powered cars, an 8.7 % increase in workshop time. These figures reflect not only the cost of the parts themselves but also the need for specialised diagnostic tools and calibration procedures that are required even for minor fixes.
"The growth of electric vehicles is creating new opportunities and challenges for the accident repair sector. While the gap between EV and ICE repairs is narrowing as repairers gain experience and technology improves, our AX Repair Index shows that electric vehicles still place a greater overall burden on the repair process. This is partly due to more costly EV parts and because they usually require calibration even for small repairs." - Scott Hamilton‑Cooper - (see original)
Hidden Damage and Battery Complexity
Unlike a petrol car, where the engine bay is largely exposed, an EV’s most valuable component—the battery—is buried beneath the floorpan. A seemingly minor collision can damage the high‑voltage charging port, inverter, or cabling, all of which are integrated into a single unit. In a recent crash test, senior test engineer Sean Hoad explained that repairing the damaged front charge port would cost about £4,000, and additional hidden damage could push the bill even higher. Because insurers often deem such repairs uneconomical, many EVs are written off after a single incident, further inflating the perceived cost of ownership.
"Repairing all of that, he says, would cost about £4,000, and there is other damage to consider as well, so the chances are an insurer would not bother getting it fixed." - Sean Hoad - (see original)
Design for Weight and Integration Challenges
EV manufacturers prioritize weight reduction to maximise range, which leads to a high degree of component integration. Parts are often glued or bonded together rather than fastened with bolts, making it difficult to isolate and replace a single damaged element. Dan Harrowell, a principal advanced technologies engineer, notes that this design philosophy means that a minor fault can necessitate the replacement of an entire system, driving up both parts and labour costs.
"There's a real focus on keeping weight down, because electric vehicles are heavy. To save some weight, there's a lot of integration of components. They're glued together, rather than using fixings, which is great to reduce weight, but not great for repair, because you have to replace whole systems rather than individual components." - Dan Harrowell - (see original)
Labor, Training, and Parts Availability
Repair shops face a shortage of technicians trained in EV diagnostics and high‑voltage safety. The AX Repair Index reports that 99 % of the UK repair network is now accredited to work on EVs, yet the learning curve remains steep. Moreover, parts for newer models are often scarce, leading to longer wait times and higher costs. Thatcham Research finds that EVs cost 30 % more to repair and take 14 % longer to fix than petrol or diesel cars, a gap that insurers translate into higher premiums.
Insurance Implications and Market Growth
Insurance companies factor repair costs into premium calculations. In the UK, EV insurance can be 10–25 % higher than for conventional vehicles, depending on make and model. The Society of Motor Manufacturers and Traders (SMMT) reports that 473,000 battery electric vehicles were registered in 2025, representing 23.4 % of all new car registrations. As the EV fleet expands, the industry is under pressure to streamline repair processes, reduce parts costs, and improve technician training to bring insurance costs down.
Closing section: 80–120 words.While electric vehicles promise cleaner roads and quieter streets, the higher cost of repairs remains a hurdle for many owners. The industry is already taking steps—standardised battery modules, modular component design, and expanded technician training—to make repairs faster and cheaper. As the market matures and economies of scale take hold, the gap between EV and ICE repair costs is expected to narrow. Until then, drivers should factor repair expenses into their total cost of ownership and consider extended warranties or insurance plans that cover high‑voltage components.