JPF Amplification operates out of 5 Denmark St , London.

We specialize in valve (tube) guitar and bass amplifiers, and have extensive experience of all the major brands, including Fender, Marshall, Orange, Ampeg, Blackstar etc.

Please do NOT bring transistor amps into our workshop without contacting us first to see if we can help you. We now only work on transistor amps that we can get support / spares for.

Our labour charge is £64/hr labour for amp repairs + parts.

There is a minimum charge of £64, which is one hour’s labour, after which we charge by the half-hour (£32 / half-hour).

Normally we will just go ahead with amp repairs, however if the repair looks like it will be uneconomic (ie a substantial proportion of your amp’s value) we will contact you before undertaking the work.

We charge a fixed price for pedal repairs, which is from £28 + parts, but we will let you know before we undertake a repair. For example to repair a 70’s EH Memory Man, we may charge more. We will let you know the labour charge before we undertake any pedal repairs.

We operate a “no fix no fee” policy, so if we can’t fix your amp/pedal there is no charge. More about us.