Service, Repairs & MOT

Alternator repair in Guildford

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

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

£396.52

Average price for this repair in Guildford 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 Guildford

Our top pick

RAC Mobile Mechanic in Guildford

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 Guildford

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

Bellfields Auto Services

5.0/5

We are proud that we have been in Guildford for over 45 years. We are a family run business owned by Philip Morgan. Philip was employed by the company in the summer of 2001 and worked closely with the incumbents to modernise and improve the company while striving to maintain the family ethics that have been the foundation of the business - being friendly, courteous and honest with our customers. The business moved premises in 1996 from the Woking road to its present position on the Slyfield industrial estate.
Link House, North Moors, Slyfield Industrial Estate, Guildford, GU1 1SE

Pkgarage Accident Repair Ltd.

4.9/5

At PKGARAGE ACCIDENT REPAIR 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

Motormasters

3.7/5

Our hand - picked team of technicians has extensive training and experience in working on many makes and models of vehicle. We service, repair and carry out MOT testing by appointment, we also do all makes servicing & mechanical repairs, air conditioning, ABS brakes, batteries, clutches, diagnostic services, engine management, exhausts, suspension, steering, tyres and wheel alignment. Here at Motormaster Vehicle Services & Repairs, we pride ourselves in a high standard of work, carried out under clean, tidy conditions. We really do care about our customers – and their cars – and are proud to know that most of our new clients are brought to us by word-of-mouth recommendation.
Unit 12, Bookham Ind Est, Church Road, KT23 3EU

Swiftest Motors Ltd

3.7/5

Swiftest Motors of Aldershot are a friendly and honest independent garage dedicated to providing sensational service to you and your vehicle. We are here to build solid and trusting customer relationships based on providing a truly excellent service with great value. We want to prove to you that we will go the ‘Extra Mile’ to gain your custom and, more importantly, retain it. As a proud member of the RAC Approved Garage Network our mission is to always provide you with the highest quality of auto repair and exceptional customer service. Our skilled team of highly qualified motor engineers will always get you back on the road as quickly and efficiently as possible.
Swiftest Motors Ltd., 17 Blackwater Way, Aldershot, GU124DN

Farncombe Service Station

3.0/5

Farncombe Service Station
Meadrow, Godalming, GU7 3HT

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.