Onyx Performance Ltd
About Onyx Performance Ltd
Serving motorists in Slough and across Berkshire, Onyx Performance Ltd is a registered UK automotive business. Based at UNIT F2 DESERONTO TRADING ESTATE, ST. MARYS ROAD, the garage handles everything from routine oil changes and MOT tests to complex mechanical repairs across the full range of car and light van types.
Services
Onyx Performance Ltd provides a comprehensive range of automotive services to keep your vehicle roadworthy and running efficiently, including:
- MOT testing — the mandatory annual roadworthiness inspection required under UK law for vehicles aged 3 years and over
- Full and interim car servicing — oil and filter changes, fluid tgc-ups, spark plug replacement and multi-point safety checks
- Brake inspection and repair — pads, discs, callipers and brake fluid flush
- Engine diagnostics — fault code reading, warning light investigation and engine repair
- Tyre fitting, balancing and wheel alignment
- Clutch and gearbox repairs
- Exhaust system repair and replacement
- Air conditioning service and recharge
- Battery testing and electrical fault finding
Registration & Location
Onyx Performance Ltd operates from Slough (SL3 7EW), typically covering a service radius of 20–30 miles across Berkshire. The business is registered at Companies House under company number 12413175, confirming its status as a legitimately registered UK business operating in the automotive maintenance and repair sector. All data displayed on this profile — including the company name, registered address and incorporation details — is sourced directly from the Companies House public register, published under the UK Open Government Licence.
To request a free, no-obligation quote for your vehicle repair or service in Slough, use the button at the top of this page. Describe your vehicle issue and the type of work required, and our partner network will connect you with qualified mechanics who can respond within 48 hours.
Typical car repair costs in Berkshire
These are average prices for car servicing and repairs in Berkshire. Actual costs from Onyx Performance Ltd may differ depending on your vehicle and the work involved.
| Service | Typical cost | Duration |
|---|---|---|
| MOT test | £35 – £55 | 45–60 min |
| Interim service | £85 – £160 | 1–2 hours |
| Major service | £200 – £350 | 3–5 hours |
| Brake pads replacement | £100 – £220 | 1–2 hours |
| Suspension repair | £150 – £400 | 2–4 hours |
| Head gasket replacement | £500 – £1,500 | 6–10 hours |
| Engine diagnostic | £40 – £90 | 30–60 min |
| Gearbox service (auto) | £150 – £300 | 2–3 hours |
Prices are indicative for Berkshire (2025–2026). Actual costs depend on your vehicle. Always get at least 3 quotes before committing.
Car garages in Slough, Berkshire
Our directory lists 236 verified car garages in Slough, Berkshire. This competitive market keeps prices fair — we recommend getting at least 3 quotes before committing to any work.
Whether you need a full car service, an MOT, or emergency repairs, Slough has qualified mechanics ready to help. Get in touch with Onyx Performance Ltd to discuss your requirements.
Location
FAQ about Onyx Performance Ltd
What services does Onyx Performance Ltd offer?
Onyx Performance Ltd offers a full range of automotive services in Slough, including MOT testing, car servicing, engine diagnostics, brake repairs and tyre fitting.
How do I get a free quote?
Use the quote button above to tell us about your vehicle and required work. Qualified mechanics will respond within 48 hours — free and no obligation.
What is the service area around Slough?
Onyx Performance Ltd is based in Slough (SL3 7EW) and typically covers a 20-30 mile radius across the county of Berkshire.
Is Onyx Performance Ltd a registered UK business?
Yes — Onyx Performance Ltd holds Companies House registration number 12413175. You can verify this directly on the public register.