An RAC Mobile Mechanic using a diagnostic machine inspecting a car for an alternator repair.A mechanic using a diagnostic machine to inspect a car vehicle engine
Service, Repairs & MOT

Alternator repair in Walton

Book an RAC Mobile Mechanic and we’ll come to you at home or work.

  • 12-months parts guarantee
  • Honest pricing
  • Exceptional customer service

£452.26

Average price for this repair in Walton in the last 30 days^

Trustpilot rating for all RAC Mobile Mechanics.

Why choose the RAC for an alternator repair?

With RAC Mobile Mechanics, you can avoid the hassle of taking your vehicle to a garage. They can do an alternator repair on your driveway, so you don't even need to leave the house.

All our alternators are OEM standards, that means we only use parts that meet your vehicle manufacturer’s strict quality criteria, ensuring top quality and reliability. With a 12-month guarantee, you can trust our replacement alternators to last. The price includes fitting – no hidden costs. Just friendly, honest experts.

Close up of an RAC Mobile Mechanic underneath a car

Our top pick in Walton

We’ll come to you at home or work

RAC Mobile Mechanic in Walton

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At the RAC, we’ve got over 125 years’ experience in offering complete peace of mind® to our members. We’re best known for our breakdown service. And now – our new RAC Mobile Mechanics are here to help make every day motoring easier. If you need a service or repair, they’ll come to you at your home or work.

An RAC Mobile Mechanic using a diagnostic machine inspecting a car for an alternator repair.

Book an alternator repair

If your car’s battery keeps dying or electrical systems are acting up, it could be a faulty alternator. Your alternator should charge the battery properly, and if it doesn’t, you could need an alternator repair.

We use original equipment manufacturer (OEM) standard parts, which means every new part will be the same standard and same quality as the original part it replaced.
Our mobile mechanics are friendly, honest, and backed by the RAC.
Close up of an RAC Mobile Mechanic running a vehicle diagnostic check

Vehicle diagnostic check

£99

We’ll spend up to 30 mins checking your car’s onboard management system for faults. We’ll talk you through repairs needed and provide a full report. If any further work is needed, we’ll agree this with you before we start. Any additional work after the first 30 minutes will be priced at £20 per 15 minutes. We’ll agree this with you before proceeding.

We’ll look for any mechanical or electrical problems. If we need to, we’ll also check your car’s onboard engine management system. Depending on your car and issue, this will usually include: – Engine – Power steering – Brakes – Transmission – Exhaust system – Fuel injection system – Cooling system and air flow – Sensors
If we detect any issues, we'll talk through what needs to be repaired. We’ll give you a no-obligation quote to fix it on the spot, if we can. Or we’ll recommend a local RAC Approved Garage, and give you a full error report to take there.

Average cost of an alternator repair by car make^

The cost to repair your car alternator will depend on the car you drive. According to RAC data, the average cost to repair a car alternator is £458. But you can check out the average price of an alternator repair for your specific car make here.

Make

Average Price

Ford

£435

Volkswagen

£466

Vauxhall

£436

Nissan

£478

Toyota

£417

BMW

£495

Peugeot

£469

Renault

£477

Mercedes-Benz

£525

Citroen

£445

^Average price quoted for RAC Mobile Mechanics from 01/01/25 to 31/03/25.


And it’s not just alternator repairs that we do in Walton

Mobile mechanics bring the garage to you, saving you the hassle of getting your car to a garage. If you need a service or repair, they’ll come to you at your home or work.

A close up of an RAC mobile mechanic looking under the hood of a car

Try one of our RAC Approved Garages

Kingsbury Hampton

At Kingsbury Hampton, we’ve been proudly serving our customers for over 125+ years. Founded on strong family values and a passion for excellence, we’ve grown into trusted experts in the automotive industry. Our long-standing commitment to quality service and customer satisfaction is at the heart of everything we do. Whether you’re a new customer or a familiar face, we value every visit and strive to deliver the highest standard of care, every time.
45 - 49 Station Road, Hampton, Greater London, TW122BU

ARJ SERVICING

Our car repair service is your trusted partner for automotive maintenance and repairs. With a team of skilled technicians and state-of-the-art facilities, we prioritise precision and efficiency. From routine maintenance to complex repairs, we ensure your vehicle receives top-notch care, enhancing its performance and longevity. Our transparent approach includes detailed diagnostics and cost estimates before any work begins. Customer satisfaction is our priority, and we strive to exceed expectations with timely service and competitive pricing. Entrust your vehicle to us for reliable and professional car repairs that keep you safely on the road. If you want to find out more about what our expert team can do for you, contact us today.
Moated Farm Drive, Addlestone, Kt15 2Dw, The Barn, Moated Farm Drive, Addlestone, KT152DW

Mercury Cars (Ashford) Ltd

Mercury Cars (Ashford) Ltd
648 London Road, Ashford, TW15 3AW

HiQ Tyres & Autocare Ashford (Heathrow)

We are HiQ Tyre Expert Ashford London (Heathrow), your trusted local tyre expert and mobile service provider. Since opening our doors in 2018, we've proudly served the Ashford London (Heathrow) and surrounding communities within centre and mobile tyre replacement. We provide a full range of services to keep your vehicle in peak condition. From servicing to tyre fitting, wheel alignment, exhausts, brakes, and more, we have the expertise to handle all your automotive needs. Our team of qualified technicians use the latest equipment and technology to ensure every job is done right the first time. Our centre is located on the Feltham Road in Ashford London, but we are also conveniently located close to Heathrow Airport, Feltham, and Sunbury on Thames.
123 Feltham Road Ashford, Middlesex, TW151AB

Pkgarage Ltd.

At PKGARAGE Ltd. you are guaranteed the best service as well as cheapest labour prices. You can call or text us at any time in order to get the best car service you need. We specialise in mechanical and electrical car services as well as check ups. Our garage is fully equipped, in order to provide the best service for you.
Pkgarage Ltd., 5, Abbot Close West Byfleet, Byfleet, KT147JN

Frequently asked questions about car alternator repairs

Driving with a bad alternator isn't a good idea. A failing alternator can make the battery drain fast, leading to a breakdown. Electrical parts may also stop working, which can be unsafe. It’s best to get the alternator checked and fixed or replaced as soon as you can.

When the alternator fails, the battery won't charge and will drain. This can make the car stall and prevent it from starting. Electrical parts like lights, radio, and power windows may stop working. Get help from a mechanic right away to avoid more damage.

Alternator reconditioning means fixing an old alternator by replacing worn-out parts. This can be cheaper than buying a new one, but it may not last as long as a new alternator.

The cost of an alternator varies by the type of car and the quality of the alternator. To know exactly how much, you should talk to your local mechanic.

Yes, alternators can be repaired if the damage isn't too bad. If the alternator is very damaged, it may be better to replace it.

Replacing an alternator is often worth it if the alternator is old or very damaged. A new or rebuilt alternator can work better and prevent future problems. Talk to a mechanic to help make the best choice.

Alternators usually last between 80,000 and 150,000 miles. But it can vary based on where and how you drive, and maintenance. Regular check-ups and fixing problems early can help it last longer.

Some alternator repairs or replacements may be covered under the car’s warranty, especially if the car is still new. Check your warranty details or talk to your mechanic to see if it's covered.

They’re often not covered by standard car insurance policies because they're thought to be part of your vehicle's upkeep. But, if it's damaged in an accident, it might be covered.

You need an alternator replacement when it's very damaged or has worn-out parts that can't be fixed. If it's not keeping the battery charged or causes electrical issues, you'll need to replace it.