Finding a reliable professional
Look for professionals who
- have independent ratings or testimonials
- introduce themselves and their work - no stock photos
- have a transparent pricing structure
- inform customers when using non-genuine or used spare parts
- issue receipts
- provide some guarantee on the repair
For some appliances and devices, professionals need to charge a "bench fee" or a diagnosis fee. As a customer, you should consent in writing and in advance to a "bench fee"
London repair businesses
we cannot vouch for these businesses, but they appear to adhere to the points above