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 Widnes

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

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

£441.04

Average price for this repair in Widnes 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 Widnes

We’ll come to you at home or work

RAC Mobile Mechanic in Widnes

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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 Widnes

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

IN'n'OUT Autocentres Liverpool

At IN’n’OUT Autocentres we offer fixed prices MOTs and Servicing for any make and model of car with no hidden extras. We are proud to be a ‘Which? Trusted Trader’ so we are really a garage you can trust. We also have a 5 Star Trustpilot reviews rating. We provide OEM parts and 12 months warranty on all parts and servicing. We only use premium Castrol oils in all servicing. Our services are all completed ‘while-u-wait’ so you have never have the inconvenience of losing your car for the day. You can watch your car as it is being worked on through the viewing window or sit back and relax in our clean and comfortable customer lounges with FREE Wi-Fi and coffee and read the latest magazines. Check out our latest reviews and BOOK NOW!!
Speke Hall Road, Liverpool, L24 9HW

A P Fleet Services Ltd

Established In 2011, AP Fleet Services Ltd is the leading vehicle body shop in the North West. We offer MOT’s for class 4 and class 7 and offer servicing and mechanical repairs to vehicles. Our dedicated team have a wealth of experience and our onsite facilities are fully equipped to meet your vehicle’s needs.
Unit B, Lea Green, Ind Est, Lea Green Rd, Saint Helens, WA94QD

Georgesons Knowsley

Georgesons MOT and Service Centre is proud to offer comprehensive servicing and vehicle repairs for car owners across Merseyside and Knowsley. From simple oil changes to complex repairs, our team of expert technicians are dedicated to keeping your vehicle running smoothly and efficiently, using the latest specialist diagnostic equipment. With services ranging from MOTs, Major and Minor Servicing, Wheel Alignments, and Air Conditioning re-gas, we're here to handle all your car care needs with precision and professionalism. We can update manufacturers' digital service records, keeping your records up-to-date. With nearly 70 years in the business, Georgesons has earned its place as Merseyside's most trusted car dealership.
Georgesons Knowsley, 42 Randles Road, Knowsley, L349HX

Fastlane Autocare - The Fast Fit Centre

Tyres, car parts, car repairs, vehicle diagnostics and much more - all from our auto mechanic experts Are you looking for a car mechanic garage in St Helens to repair, service or maintain your car? The Fastfit Centre team is on hand to help you with all of your car repair and servicing needs. We offer quality services and repairs at competitive prices for all customers at our garage based in the St Helens area of Merseyside. The FastFit Centre offers a wide range of car repairs and services; including, but not limited to: tyre replacements and puncture repairs, full servicing for any vehicle, diagnostics using the latest software and main dealer specific technology, engine re-builds, electrical re-wiring, dash-cam installations, general car repairs and MOTs. We carry out each repair and service using quality parts and main-dealer, level specialist equipment. As an independent garage and leading stockist of tyres, parts and car accessories, we are able to offer our customers the very best service at unbeatable prices. We are also able to service and repair any vehicle which is still under warranty.
Fastlane Autocare, 232-254 Boundary Road, St Helens, WA102PZ

I C Automotive LTD

We are an established local independent garage and are proud to be members of Autofirst Network – a nationwide network of independent garages operating to the Network’s 6 core values of Capability, Consistency, Care, Clarity, Cost Effectiveness and Customer Focus. For your added peace of mind we are members of the Motor Ombudsman service which is approved by The Trading Standards Institute. In short, we are a local garage you can trust offering you the support and service guarantees of a national network, giving you complete peace of mind. We offer an interest free payment plan through Payment Assist which takes the worry out of having to find all the funds to repair your car at the one time and offers you to pay this over 4 equal amounts with the first 1/4 coming out the day you sign up for the repair. Terms and conditions apply. Speak to a member of staff for more details. All free health checks are to be dropped off by 8:30am as this is a free service, We ask you not to be late. Thank You
Unit 1 Glover Street, St Helens, WA103LF

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.