Contact details
Phone: 07405 117 386
Mobile / WhatsApp: 07405 117 386
Email: info@merlinperformance.com
Location: 280B Bellingdon Road, Chesham, Buckinghamshire HP5 2NN
Get in touch
Contact Merlin Performance Tuning
Send your registration, postcode and the services you need. We will confirm what is suitable and come back with a quote.
Service area
Workshop and mobile service are available within 15 miles of Chesham, including nearby areas such as Amersham, Berkhamsted, Tring, Great Missenden, Little Chalfont and High Wycombe where suitable.
Opening hours
| Mon – Fri | 07:00 – 21:00 |
| Saturday | 07:00 – 18:00 |
| Sunday | 07:00 – 14:00 |
Open every day except Christmas Day & New Year's Day.
Workshop or we come to you
Visit us in Chesham, or book a mobile appointment anywhere within 15 miles — most tuning, diagnostics and aircon work can be done at your home or workplace. Original files are always backed up before any work begins.
Fastest response: WhatsApp us with your reg and postcode.
Why choose Merlin Performance Tuning
IMI certified, Viezu master tuner network
Remapping backed by Viezu's insurance-backed guarantee, 30-day money-back promise and lifetime software guarantee.
Bespoke, dyno-tested files
Every map is built for your exact vehicle and safety-validated on the dyno — never a generic file off a shelf.
Original file always backed up
Your stock map is saved before any work, so the car can be returned to standard at any time.
Rated 5.0 on Google
Workshop in Chesham or mobile to your door, 7 days a week, early till late.
Explore our services
Covered towns
We cover local areas including Chesham, Amersham, Berkhamsted, Tring, Hemel Hempstead, High Wycombe, Great Missenden, Little Chalfont, Chalfont St Giles, Chalfont St Peter, Chorleywood, Rickmansworth, Bovingdon, Kings Langley, Beaconsfield, Wendover, Holmer Green, Aylesbury, Watford and St Albans.
CheshamAmershamBerkhamstedTringHemel HempsteadHigh WycombeGreat MissendenLittle ChalfontChalfont St GilesChalfont St PeterChorleywoodRickmansworthBovingdonKings LangleyBeaconsfieldWendoverHolmer GreenAylesburyWatfordSt Albans
Mobile service depends on vehicle, service type and appointment availability.
Need a quote?
The fastest route is the quote form on the homepage. You can select multiple services and include your registration, postcode, phone and email.