Ceramic • Correction • Protection — Cardiff

Obsessed with the finish.

01

The Standard

Most valets wash cars. We restore light.

Paint isn't flat — it's a lens. Every swirl mark, every holographic haze left by a rushed hand polish scatters the light your car should be throwing straight back at you.

Inside our Hadfield Road studio we measure paint depth, correct it under colour-true lamps and seal it in ceramic. One car at a time, booked in advance, finished when it's right — not when the clock says so.

  • 120-ptpre-detail inspection
  • 1 carin the studio at a time
  • 5 yrsceramic protection
02

Packages

Choose your finish.

Every booking starts with a walk-round and paint inspection. Prices confirmed before a single panel is touched.

T.01

The Maintenance

£45

The fortnightly standard for cars we've already corrected — and the proper wash everyone else deserves.

  • pH-neutral snow foam pre-wash
  • Two-bucket contact wash, plush mitts
  • Wheels, arches & door shuts
  • Interior vacuum & trim wipe-down
  • Glass polished inside & out
  • Three-month spray sealant

Approx. 2 hours

T.02

The Revival

£290

A full reset for the daily driver — decontaminated, machine-polished and sealed, inside and out.

  • Full chemical & clay decontamination
  • Single-stage machine enhancement
  • Deep interior extraction & steam
  • Leather conditioned, fabric guarded
  • Tyres, trim & arches dressed
  • Six-month paint sealant

Approx. 1 day

T.03

The Onyx Ceramic

from £549

The flagship. Multi-stage correction, then a true ceramic coating cured under infrared — the finish this studio is named for.

  • Multi-stage paint correction
  • 9H ceramic coating, infrared-cured
  • Five-year hydrophobic protection
  • Wheels off — faces & barrels coated
  • Glass, trim & exhaust tips sealed
  • First maintenance wash included

Approx. 2–3 days

03

The Difference

Correction isn't a buzzword.

Drag the divider. Same panel, same light — before and after a two-stage machine polish.

Black coupé in the studio after paint correction — deep gloss, sharp reflections
04

The Method

Four stages.
No shortcuts.

Stage 01

Decontaminate

Snow foam, citrus pre-wash, iron fallout remover and a full clay treatment strip away everything bonded to the paint. We never polish over contamination — we remove it first.

Stage 02

Correct

Paint depth is measured panel by panel, then machine compounding removes swirl marks, scratches and oxidation — permanently, not hidden under filler glazes.

Stage 03

Refine

A finishing polish jewels the surface to a true mirror gloss. Every panel is wiped back with isopropyl so we inspect the bare result — no oils, no tricks.

Stage 04

Protect

A 9H ceramic coating is applied panel by panel and cured under infrared lamps. Hydrophobic, chemical-resistant and warrantied for up to five years.

The Onyx Auto Spa studio in Cardiff — a black coupé under colour-corrected lighting
05

The Studio — Hadfield Road, Cardiff

Built for one car
at a time.

A climate-controlled unit with colour-corrected lighting that hides nothing. Filtered water, dust extraction and an infrared curing arch — the conditions a finish like this demands. Collection and delivery available across South Wales.

06

Word Gets Around

Client testimonials

“They pulled three years of swirl marks out of my M4 and sealed it in glass. The paint looks deeper than the day I collected it from the dealer.”
Rhys Morgan — Penarth
“I watched them spend twenty minutes on a door shut. Twenty minutes. That's when I knew the car was in the right hands.”
Elin Hughes — Cardiff Bay
“Booked The Revival before selling my Golf R. It went in two days, over asking. The detail paid for itself twice over.”
Daniel Price — Barry
07

Bookings — South Wales

Book your detail.

029 2132 0584

Visit

Unit 7, Hadfield Road
Cardiff CF11 8AQ
Wales
bookings@onyxautospa.co.uk

Hours

  • Mon — Fri08:30 — 18:00
  • Saturday09:00 — 16:00
  • SundayClosed

Areas Served

  • 01Cardiff
  • 02Penarth
  • 03Barry
  • 04Newport
  • 05Bridgend

© 2026 Onyx Auto Spa. Fully insured. Detailing only — no shortcuts taken, none offered.

Website by Studio — South Wales