London Guitar Repairs

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London Guitar Repairs London Guitar Repairs, specialist in stringed instrument care. Juan was born and raised in Buenos Aires, Argentina.

Founded by guitar technician Juan Ignacio Diaco Vidal, with 24 years’ experience building and repairing guitars, including work at Denmark Street workshops and sessions at Abbey Road Studios. At the age of nine he started teaching himself how to play guitar, bass, keyboards and drums; before joining local bands and performing around the country. After studying sound engineering at the Universidad Nacional de Lanús, he worked as a live sound engineer and separately on a number of music productions in his home studio. He also trained as a luthier/guitar technician, building and repairing stringed instruments alongside his father, using his surname Diaco as a brand. In 2014 Juan moved to London to develop his skills and connections. His passion and commitment to music led him to working at guitar repair workshops around the capital city, including Camden Town and the well-known Denmark Street. Here he repaired guitars for artists like the legendary Jarvis Cocker (Pulp), Mercury Prize-winner Michael Kiwanuka, Grammy-winners Mumford & Sons, and King Krule. He later taught Brit Award-winners Bastille how to play the traditional rhythms of his home country. At the same time, he played with a host of different bands as a guitarist, and even busked around town. Juan was hired to work as a guitar technician at Abbey Road on live recording sessions.

American Vintage ’56 Stratocaster®, Aged White Blonde (2014)✓ Fret levelling on the maple fretboard✓ Fret ends smoothed✓...
09/10/2026

American Vintage ’56 Stratocaster®, Aged White Blonde (2014)

✓ Fret levelling on the maple fretboard
✓ Fret ends smoothed
✓ Nut edges rounded, slots filed and lubricated
✓ Tremolo springs muted with foam
✓ Machine heads and string tree lubricated
✓ Action and intonation adjusted
✓ Neck pocket shimmed on one side to balance the spacing between the low and high E strings and the fretboard edges
✓ Setup completed with ELIXIR Strings Nanoweb 10–46 strings

Fender

Grover Jackson, 1996 (Japan)✓ Fret levelling, filing and smoothing, including fret ends and sides✓ Full setup in Drop C ...
20/09/2026

Grover Jackson, 1996 (Japan)

✓ Fret levelling, filing and smoothing, including fret ends and sides
✓ Full setup in Drop C with Ernie Ball 12-62: truss rod, action, intonation and nut height
✓ Neck shimmed to raise the Floyd Rose bridge and achieve the correct action
✓ Floyd Rose saddles set to properly follow the fretboard radius
✓ Low C and G saddles filed to allow the strings to sit correctly
✓ Low C machine head slot filed for proper string fit
✓ Low C locking saddle screw shortened to clear the body once intonation was set
✓ Electronics cleaned and pots and toggle switch lubricated
✓ Strap buttons tightened
✓ Machine heads tightened and lubricated
✓ Floyd Rose springs muted with foam
✓ Neck cavity shimmed to gain height for better Floyd Rose performance

Grover Jackson Official Floyd Rose GUITAR TECH BDub

Spent some time at STUDIO A _ B48 in Barcelona visiting my friend Tomás Aristimuño, at the studio where he works.Tomás...
26/08/2026

Spent some time at STUDIO A _ B48 in Barcelona visiting my friend Tomás Aristimuño, at the studio where he works.

Tomás is an amazing sound engineer, musician and, above all, a great person.

I had the pleasure of helping him get the best performance out of his Fender Jazz Bass and Fender Telecaster. Always a pleasure working on instruments with someone who really cares about sound.

La mejor, hermano 🫂

BRIDGE__48

2002 Ibanez JEM MIJ 🇯🇵Another beautiful Japanese built instrument serviced.This one received:✓ Full setup (action, inton...
28/07/2026

2002 Ibanez JEM MIJ 🇯🇵

Another beautiful Japanese built instrument serviced.

This one received:

✓ Full setup (action, intonation & neck relief adjustment)
✓ Fresh set of Ernie Ball Regular Slinky 9–42 strings
✓ Fretboard cleaned & conditioned
✓ Fret ends smoothed
✓ Machine heads tightened & lubricated
✓ Nut slots lubricated
✓ Pickup heights levelled to match output
✓ Full hardware inspection

A huge thank you to Chris Adams for trusting me with three guitars to service. It truly means a lot… thank you for your continued support!

London Guitar Repairs
Pre-booked appointments only.

Ernie Ball

1981 Ibanez Artist AR100 MIJ, Japan 🇯🇵A beautiful Japanese-built classic, now finished and playing beautifully.Thanks, R...
27/07/2026

1981 Ibanez Artist AR100 MIJ, Japan 🇯🇵

A beautiful Japanese-built classic, now finished and playing beautifully.

Thanks, Rupert Coulson (Blythe Roop), for trusting me with your guitar.

✓ Setup (action, intonation & neck relief adjustment)
✓ Pickups height adjusted
✓ Fretboard treatment
✓ Machine heads tightened & lubricated
✓ Nut edges rounded & slot height adjusted
✓ Bridge saddles lubricated
✓ Bridge stud modification
✓ Electronics cleaned & checked (jack socket & 3-way toggle tightened)
✓ Full clean & polish
✓ Fresh set of D’Addario EXL110 10–46 strings

Always a pleasure bringing great instruments back to their best.



Ian D'Addario and Company

Gibson Les Paul Standard - Heritage Cherry Sunburst✓ Setup✓ D’Addario 9–42 strings fitted✓ Nut edges rounded and slots l...
26/07/2026

Gibson Les Paul Standard - Heritage Cherry Sunburst

✓ Setup
✓ D’Addario 9–42 strings fitted
✓ Nut edges rounded and slots lubricated with graphite
✓ Machine heads tightened and lubricated
✓ Action, relief & intonation adjusted
✓ Fretboard cleaned and conditioned
✓ Complete clean and polish

Gibson D'Addario and Company

Address

566 Cable Street
London
E1W3HB

Opening Hours

Monday 12pm - 6pm
Tuesday 12pm - 6pm
Wednesday 12pm - 6pm
Thursday 12pm - 6pm
Friday 12pm - 6pm

Telephone

+447917338390

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