07863 791632 gavwarn@yahoo.co.uk Mon–Sat 9am – 8pm · Closed Sunday AboutServices Areas Our WorkReviewsContact07863 791632Get Free Quote HomeService AreasTredegarBlaenau Gwent · NP22 # ECU Remapping inTredegar — straight along the Heads of the Valleys. Tredegar is fifteen minutes east of us on the A465. From Dukestown and Sirhowy down to Georgetown and Cefn Golau, we'll turn up with the kit and have you sorted on the kerb. Get My Free Remap Quote 07863 791632 15 minutes from Merthyr · NP22 covered · No callout fee Free, no-obligation quote ## Get a price in Tredegar Reply within working hours · Same-day quotes Local to Tredegar ## Why we know Tredegar inside-out. Tredegar sits at the top of the Sirhowy valley, and the A465 puts it inside fifteen minutes of our Trefechan workshop. That short hop means NP22 customers get treated almost identically to Merthyr ones — quick lead times, flexible booking windows, and the same diagnostic-first approach that the home-town diary gets. Tredegar driving is mostly steep. The drop down to the town clock, the climb back out toward Rassau, and the long pull on the A465 itself — all of that loads a diesel turbo in ways the factory ECU map wasn't really designed for. We see plenty of cars that feel sluggish low down and only wake up at 2,800 rpm. A reshaped low-end calibration sorts exactly that. Response time Most NP22 jobs are booked within 3–5 working days. Urgent diagnostic or engine-light work is often same-day or next-day. Properties we work at Long terraced rows through Tredegar town and Georgetown, post-war estate housing in Sirhowy and Cefn Golau, scattered farms above Dukestown, plus the Rassau industrial estate at the top of the valley. Most common service needs Stage 1 economy remaps on diesel commuters heading down the A465 toward Newport, van tuning for trade fleets at Rassau industrial estate, plus EGR and DPF diagnostics on short-trip town vehicles. Where we're based 35 The Birch Way, Trefechan, Merthyr Tydfil CF48 2HA — About 15 minutes east of Merthyr along the A465 Heads of the Valleys. Services available in Tredegar ## Everything we tune, calibrate and diagnose in Tredegar. Every service below is delivered mobile to your Tredegar driveway, workplace or yard — same workshop-grade kit, same calibration files, no compromise. ### ECU Remapping in Tredegar Custom-tuned ECU files for power, economy or both. Learn more ### Stage 1 Remap in Tredegar Bolt-on power & torque gains on a standard engine. Learn more ### Stage 2 Remap in Tredegar Calibrated for hardware upgrades — intake, exhaust, intercooler. Learn more ### ECU Diagnostics in Tredegar Full fault-code reads, live data and root-cause diagnosis. Learn more ### ECU Tuning in Tredegar File optimisation for response, smoothness and fuel return. Learn more ### Engine Light Removal in Tredegar Diagnose, fix and clear stubborn warning lights — properly. Learn more ### Truck Remapping in Tredegar HGV & LCV tuning for torque, MPG and driveability. Learn more ### Tractor Remapping in Tredegar Agricultural ECU tuning — more pulling power, less fuel. Learn more ### Plant, ATV & Bike Remapping in Tredegar Quads, buggies, motorbikes and plant machinery. Learn more ### DPF Cleaning & Diagnostics in Tredegar Blocked DPF diagnosis, forced regen and proper repair. Learn more ### Van Remapping in Tredegar LCV tuning for loaded pulling power and better MPG. Learn more ### Economy Remapping in Tredegar Fuel-first calibration for commuters and fleets. Learn more ### Mobile Remapping in Tredegar We come to your driveway, yard or workplace. Learn more ### ECU Repair in Tredegar ECU fault diagnosis, repair, cloning and replacement. Learn more Why customers in Tredegar pick us ## Concrete trust signals — not marketing fluff. 15 min From our workshop Straight along the A465. NP22 is close enough that we'll often pair it with a Merthyr day. NP22 Whole borough on the route Tredegar town, Sirhowy, Georgetown, Dukestown, Cefn Golau, Rassau — covered with no separate fee. Diagnostic first Never just clear codes Engine-light work always starts with a proper scan, live data and adaptation read — not a quick wipe and hope. Lifetime Software support Every file is backed by lifetime software support — if something changes, we'll sort it. Problems we see in Tredegar ## The local conditions that wreck a stock map. Generic maps don't account for Tredegar's specific mix of roads, climate, property types and vehicles. These are the issues we diagnose and fix here every week. ### Long A465 commute wear Daily runs down to Newport or Cardiff cycle DPFs and EGRs hard. We diagnose actual condition first — never write a file on top of an unknown fault. ### Steep Sirhowy climbs exposing stock turbo lag The pull back up from town to Rassau makes flat-spots obvious. A reshaped torque curve fixes the gear-hunting without changing peak figures. ### Rassau yard vans on heavy duty cycles Trade vans operating out of Rassau industrial estate do harder mileage than the factory map assumes. Custom fuelling restores MPG. ### Older trade fleet diesels with patched history Plenty of NP22 Vivaros and Transits come to us with previous quick-fix attempts. We test from cold and rebuild a clean baseline before any tune. Our process in Tredegar ## Every Tredegar job runs the same disciplined sequence. The same five steps, in the same order, every single time. Predictable, repeatable, fully reversible. - 1 ### Free quote by reg Send your registration and what you're after. We come back — typically within 24 hours — with a price and the next available slot in Tredegar. Price is confirmed once we know the exact vehicle and location. - 2 ### Pre-tune diagnostic On arrival we read fault codes, live data and adaptations. If something's wrong, we tell you before any file change. - 3 ### Back up factory file Original calibration stored against ECU serial, date and mileage — so the vehicle is always recoverable. - 4 ### Write tested calibration We load a calibration tested on the exact engine/gearbox combo — not a generic shared map. - 5 ### Road-test & hand back Short controlled road-test on the nearest A-road, post-tune scan, and the keys back in under 90 minutes. The detail ## Tredegar coverage, vehicle profiles and local context. Tredegar is on the same A465 corridor as our workshop, so it's effectively a home-market town. The lead times, flexibility and diagnostic standard match what Merthyr customers get. Talk to Gavin Quickest way to get a price for Tredegar is a 60-second phone call. 07863 791632 ### NP22 areas we cover most weeks Tredegar town centre, Georgetown, Cefn Golau, Sirhowy, Dukestown, Rassau, Peacehaven, Glyn-helyg. All NP22 served without a travel fee. ### Why mobile remapping suits Tredegar Most jobs happen on the customer's kerb in 60–90 minutes. No half-day drive to Newport or Cardiff, no courtesy car, no taxi back. ### Vehicle profiles in NP22 Strong diesel commuter contingent, big presence of Transit and Sprinter trade vans, plenty of older Defenders and pickups on the rural fringe above Dukestown, plus a growing pool of Mercedes and BMW estates. FAQ — Tredegar ## Straight answers about remapping in Tredegar. Anything not covered here? Call Gavin on 07863 791632. ### Do you cover Tredegar? ### How fast can you reach me in Tredegar? ### Is there a callout fee in NP22? ### Do you cover Rassau industrial estate? ### How much is a Stage 1 remap? ### Can I undo a remap? ### How do I pay? ### Will a remap affect my insurance? ### Do you do DPF, EGR or AdBlue work? Nearby areas we cover ## Also covering the towns around Tredegar. Remapping in Ebbw ValeRemapping in Merthyr TydfilRemapping in Bargoed Back to homepage· Contact / book ## Ready to book your remap in Tredegar? Send your reg and what you're after — we'll come back the same day with an exact price and the next available Tredegar slot. Call 07863 791632Get My Free Remap Quote 5+ years remapping · Original file backed up · 100% reversible · Mobile across Blaenau Gwent ECU remapping & diagnostics across South Wales. Calibrated power, sharper response, real-world MPG — done properly. Follow on Facebook ### Services - ECU Remapping - Stage 1 Remap - Stage 2 Remap - ECU Diagnostics - ECU Tuning - Engine Light Removal ### Areas - Merthyr Tydfil - Swansea - Cardiff - Newport - Chepstow - Bridgend ### Contact - 07863 791632 - gavwarn@yahoo.co.uk - 35 The Birch Way, Trefechan, Merthyr Tydfil, CF48 2HA - Mon–Sat 9am – 8pm · Closed Sunday - Leave a Google review © 2026 Future Remapping. 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