Alloy Wheel Crack Repairs for MOT Failures

A cracked alloy wheel is one of the most common reasons for an MOT failure. Even a small crack can cause your vehicle to fail safety checks, as it compromises the wheel’s strength and risks tyre blowouts. At Onyx Performance in Slough, we specialise in professional alloy wheel crack repairs to help you get your car MOT-ready quickly and safely.

Our skilled technicians use precision welding techniques to restore the wheel’s structural integrity. Unlike quick fixes or fillers, our repairs are safe, permanent and MOT-compliant, ensuring your wheels pass inspection with confidence.

Trusted by drivers, dealerships and fleet operators across Slough, Windsor, Uxbridge and Berkshire, we provide fast turnaround times and quality finishes. Once the crack is repaired, we can also refinish the wheel with powder coating or diamond cutting, so it looks as good as it performs.

Why Choose Onyx Performance?

As Seen on Carwow

We’ve been proudly featured on Carwow – a testament to the quality, professionalism, and performance-focused results that set us apart. Watch our feature here to see us in action.

Expertise You Can Trust

With years of experience and deep technical knowledge, our team understands performance vehicles inside and out – from custom remaps to high-end servicing.

Advanced Workshop & Tools

We operate from a state-of-the-art facility in Slough, equipped with cutting-edge diagnostics, dyno testing, and industry-leading tools for accurate, high-quality work.

Tailored Solutions for Every Vehicle

We don’t believe in one-size-fits-all. Every car gets a bespoke approach, ensuring the best results whether it’s a remap, upgrade, or routine service.

Trusted Nationwide

Performance enthusiasts from across the UK come to Onyx because they know they’ll receive premium-quality workmanship, careful attention to detail, and honest advice.

Complete Care, All in One Place

From tuning and servicing to tyres, trackers, and immobilisers – we offer a full suite of services under one roof, all with a strong focus on safety, reliability, and top-tier customer support.

Customer Reviews

    
 
 
       Posted on Google  
   
   Anil Soni 
 
 
 
 Trustindex verifies that the original source of the review is Google. Thank you guys for your professional, dedicated and honest opinion. You made my day by fixing my son's car so he could use it for DoE at very short notice. Max and Kay were brilliant and I would definitely recommend this garage as a organised and trustworthy business. Keep up the good work.
  
 
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   subin pradhan 
 
 
 
 Trustindex verifies that the original source of the review is Google. Took my BMW 440i to install downpipe and mid pipe. Top guys with good service and reasonable price. Will be going back for more work done.
  
 
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   J JareCki 
 
 
 
 Trustindex verifies that the original source of the review is Google. I just done Stage1 in my audi s3, car drive superb, excelent service, thanks Ben,Sam and Onyx team! Brilliant work
  
 
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   Dan May 
 
 
 
 Trustindex verifies that the original source of the review is Google. Honest and knowledgable! Rare these days - saves me hundreds by checking my Golf R properly. Will only use these guys from now on
  
 
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   Darren Dawes 
 
 
 
 Trustindex verifies that the original source of the review is Google. I took my jaguar xfr to these guys for a re map . Excellent service. They could not have been more helpful. Very knowledgeable they definitely know what they are doing. If your looking for a re map I would highly recommend you speak to them.
  
 
      Posted on Google  
   
   Hana 
 
 
 
 Trustindex verifies that the original source of the review is Google. I was recommended Onyx to get my diamond-cut alloys refurbished. I am located an hour away but the recommendation was important so decided to leave my car with these guys. First impressions, the team were very polite, friendly (Essan, Ben and the guys that actually did the refurb in the intense heat) The prices were competitive. And the quality of work was super. There was slight miscommunication post the sale (which happens) but I was pleased they resolved this to my satisfaction. One idea I would suggest is advising the customer 'before' the work starts that the TPF valves may need replacing so we have the option to decide whether to do it whilst the wheels are off anyway rather than post refurb to avoid scratching the newly done alloys. Otherwise happy with my overall experience.
  
 
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   Mark 
 
 
 
 Trustindex verifies that the original source of the review is Google. Amazing service
  
 
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   pavan khangura 
 
 
 
 Trustindex verifies that the original source of the review is Google. The best experience ever well organised clean friendly team and the experience was amazing A big up to the whole staff.

Book Alloy Wheel Crack Repairs for MOT Success in Slough

Don’t let a cracked alloy cause an MOT failure. Our expert welding service restores wheels to a safe, roadworthy standard. Contact Onyx Performance today to book your MOT crack repair in Slough and get back on the road without delay.

5-Star Google Reviews

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Why Choose Onyx Performance for Alloy Wheel?

Local Slough Experts

We’re a Slough-based alloy wheel refurbishment company with years of hands-on experience. Unlike generic national chains, we know the needs of local drivers and deliver a personal, reliable service tailored to our community.

All-in-One Repairs

From scuff and scratch removal to kerb rash repairs, corrosion treatments and diamond-cut finishes, we handle all types of alloy damage under one roof. Whatever condition your wheels are in, we can restore them to a showroom standard.

Premium Finishes

We use industry-leading equipment and high-quality coatings to guarantee long-lasting results. Our finishes are resistant to peeling, flaking and corrosion – keeping your alloys protected against UK weather and road salt.

Affordable Alternative

Why pay for expensive new wheels when you can refurbish at a fraction of the cost? Our affordable alloy wheel repair service in Slough gives your wheels a fresh look while saving you money.

Quick Turnaround

We know your car is important, so we aim to complete most refurbishments the same day. Even with a quick turnaround, we never compromise on quality – every wheel leaves our workshop finished to the highest standard.

Trusted Reputation

Onyx Performance is trusted by drivers, car enthusiasts and local dealerships across Slough. Our reputation is built on excellent customer service, reliable workmanship and results that exceed expectations every time.

Frequently Asked Questions

Can a cracked alloy wheel fail an MOT?

Yes – any visible crack in a wheel will cause an MOT failure, as it’s considered a safety risk.

Is welding an MOT-compliant repair?

Yes – when carried out by a qualified professional, alloy wheel welding is a safe and permanent solution that meets MOT standards.

Can all cracked alloys be repaired for MOT passes?

Most can – but if the crack is too severe or in a dangerous location, we’ll advise whether replacement is safer.

Do you cover MOT crack repairs outside of Slough?

Yes – while based in Slough, we also serve drivers from Windsor, Maidenhead, Uxbridge, Reading and West London.

Is it cheaper to repair a cracked wheel than replace it?

Yes – crack welding is a cost-effective solution, especially for luxury or performance cars where new alloys can be very expensive.

How long does the alloy wheel refurbishment process take?

Upto 3 working days depending on damage and service required.

Get a quick quote

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