Service, Repairs & MOT

Alternator repair in Swansea

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

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

£381.39

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

Trustpilot rating for all RAC Mobile Mechanics.

Why choose the RAC for an alternator repair?

At the RAC, we've got over 125 years' experience helping UK drivers. We have the skills and knowledge to keep your vehicle running.

Plus, with RAC Mobile Mechanics, you can avoid the hassle of taking your vehicle to a garage when you need a repair. We’ll come to you, at your home or work.

Close up of an RAC Mobile Mechanic underneath a car

Our top pick in Swansea

Our top pick

RAC Mobile Mechanic in Swansea

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.

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

Book a diagnostic

For when you know something isn’t right, but you’re not sure what – our mobile mechanics are here to help.

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.

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

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.

Try one of our RAC Approved Garages

Manselton MOT Centre

5.0/5

Manselton MOT & Service Centre is a family run vehicle service and testing station, focused on providing you with truly outstanding garage services at the right price. At Manselton MOT & Service Centre, our experts can perform various garage services on your car or van. We can work on all makes and models of cars and light commercial vehicles. We will run tests to pinpoint the problem, fix the issue for you, and perform general maintenance on the rest of the vehicle to keep you running longer. Our general car and van servicing also covers tyre fitting and engine management. We aim to be your one-stop-shop for all of your automotive needs.
Unit 3 Cambrian Yard, David Street, Manselton, SA58NX

Keep Driving Auto Ltd

4.9/5

Here at Keep Driving Auto we provide a first rate, friendly garage service. Serving the Swansea area, located in Llansamlet within easy reach of both the city Centre and Swansea Enterprise Park.
Unit 7 St Lukes Court, Clarke Way Swansea Enterprise Park, Llansamlet, Swansea, SA17ER

C G AUTO REPAIRS

4.7/5

Here at C&G AUTO REPAIRS we have over 20 years experience in Diagnostics and repairs on all make and model vehicles. we can do anything from timing belt renewals to clutch replacement, DPF cleaning. you name it we can give you a quote At Eurorepar Car Service, we’re all about keeping you and your car moving with confidence. As a trusted network of local garages, we provide high-quality car maintenance and repairs tailored to your needs – all at competitive prices. With our exclusive Brakes for Life program and a 2-year parts and labour warranty, you can drive away knowing you’re covered for the long haul.* Ask your Eurorepar Car Service Centre to fit Eurorepar branded parts to qualify. Claims under the 2-year parts and labour warranty must be made at a Eurorepar Car Service Centre. Discover expert care, unbeatable value, and peace of mind – all under one roof. Ready to experience the Eurorepar difference? Request a quote or give us a call today! *Terms and conditions apply.
Unit F1, Sa1 Business Park, Langdon Road, SA18DB

Eastlake Garage

4.7/5

We are a well-established company which has been in operation since 2010. As well as being a fully stocked garage, we also have fully stocked mobile workshop vans and we carry out both in house and mobile repairs and servicing for our customers in and around South Wales. As part of our ongoing expansion of our company we can now offer a 24-hour callout service within the Mid Glamorgan area - other areas are covered but charges are applicable. We are AA and RAC certified to carry out their breakdown and repair work as well as being Trading Standards approved and members of the Motor Ombudsman adhering to their strict code of conduct at all times. We are also Afilliated with the IMI We can offer our customers a free vehicle collection and delivery service within 20 miles of the garage, and we also offer discounts to NHS and Emergency Service staff members upon valid photographic identification.
Eastlake Garage, Gaens Quarry, Porthcawl Road, South Cornelly, Bridgend, CF334RN

Gorseinon Tyre & Service Centre.

4.3/5

Gorseinon Tyre & Service Centre is a family run business and we have over 30 years experience within the motor trade offering our customers high quality service at affordable prices. We specialise in servicing all makes of cars and vans and we have the latest diagnostic tools to quickly identify and resolve your vehicle problems. We have two garages located in walking distance from one another. Our Tyre garage and our Main Workshop and MOT station. We stock a large amount of tyres so no appointment is necessary - just call in and we will take care of it. We offer a friendly waiting area for customers. In addition to this we also specialise in exhausts, batteries, clutches, brakes, car repairs, engine diagnostics, auto electrical. We offer a local drop off and collection service to our customers so if you are living in the area of working and can’t get back- please just give us a call and we will take care of it!
Old Brisco Yard Gorseinon Road, Penllergaer, Swansea, SA49GE

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 is 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.