Alternator Repair in London

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Is your battery not charging? Do your headlights dim when you press the accelerator? If so, you probably have an Alternator Fault.

A new alternator may be necessary to power your engine sufficiently and ensure safety.

Along with alternator repair, battery problems may also be an indication of starter motor failure.


Receive alternator prices for garages across London and get booked in today when you enter your registration in the form above!

Top garages for Alternator Repair in London (1,892 found)
Galaxy Auto Centre Garage
716 Jobs Completed
Welham Green
4.8 / 5

Galaxy Auto Centre Garage is based in Welham Green, Hertfordshire, AL9 7DY. We started trading in 2013, and now we have two ramps and two mechanics. We carry out servici

Westbourne Motors Mobile - Epsom
479 Jobs Completed
Epsom
4.3 / 5

The Westbourne brand is the South’s leading repairer for household names such as Green Flag, AA & RAC. For the majority of repairs we can offer a mobile service

Mechanics To Your Drive
3 Job Completed
Fawkham, Longfield
5.0 / 5

Welcome To The South East's Leading Independent Mobile Mechanics & Vehicle Servicing Centre. Mechanics you can trust, next-day service available at your chosen loc

SMS Motors
1585 Jobs Completed
Horton
4.6 / 5

SMS Autocare is dedicated to quality and value for money with the services we provide. We can offer full diagnostic testing, MOT and Service, mechanical repairs and much

ALL IN 1 MOTORS
883 Jobs Completed
Wexham, Slough
4.7 / 5

From servicing and repairs to body works and tyres we are a one stop shop for all. We also specialise in alloy wheel refurbishment, may it be diamond cut or standard pai

Marvelous Cars
340 Jobs Completed
Watford
4.8 / 5

Here at Marvelous Cars, we strive to provide the best vehicle repair and services to our customers. We are a mobile mechanic that provides on-the-go services wherever and

PKB Motor Company
122 Jobs Completed
Beckenham
4.9 / 5

We strive to become the best and most trusted local garage in Beckenham providing a main dealer, high level service at a price you can enjoy. All of our works are carri

Westbourne Motors Mobile - Slough
337 Jobs Completed
Slough
4.2 / 5

The Westbourne brand is the South’s leading repairer for household names such as Green Flag, AA & RAC. For the majority of repairs we can offer a mobile service

Sutton Mobile Mechanic
16 Jobs Completed
Wallington
4.9 / 5

Every car I work on I consider as my own and would ensure that quality, value and service is provided at all times. Sutton Mobile Mechanic brings you value, quality &am

247 Diagnostics Limited
47 Jobs Completed
Ilford
4.9 / 5

We are a mobile diagnostic company which has many years of experience. We offer from diagnostics, fault finding, programming ECU, programming keys, CAS UNIT repairs. DPF

Mobile Mechanics and Tyres
3112 Jobs Completed
Barnet
4.9 / 5

Services provided: -- Can build and assemble machines or mechanical components according to requirements -- Able to Inspect machines, engines, transmissions etc. an

Sierra Garage Limited
204 Jobs Completed
Grays
4.8 / 5

Sierra Garage Ltd are an independent workshop based in Essex. We believe in providing our customers with the very best customer experience, as we pride ourselves on our

Marks Motors - Bushey
78 Jobs Completed
Bushey
5.0 / 5

Marks Motors A friendly, independent motor mechanic based in Bushey, Hertfordshire. I have many years of extensive experience in the motor industry and I am fully ins

LEVOFIX LTD
236 Jobs Completed
London
4.9 / 5

I am a specialist car mechanic with a wide range of experience. I have been a mechanic for 15 years and have experience working on all car types. I love my job and enjoy

AG Garage
65 Jobs Completed
Leytonstone
5.0 / 5

AG Garage is a local family run independent garage, which has been established since 2005. We are based in Leyton Stone and are connected to major bus and train links.

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Alternator Repair in London
Frequently asked questions
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What is a car alternator?

The car's alternator performs a simple but vital job: to keep your car's battery charged. The battery is responsible for starting the car, spark plugs, lights, electrics, and sometimes power steering - quite a job - so it's essential that it's topped up - and that's what the alternator does.

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What are common problems with an alternator?

The alternator acts like a small generator: the engine spins, and the alternator turns that spinning motion into electricity. The most common problems are worn brushes (the component that maintains constant electrical contact with the spinning alternator) and a failing voltage regulator (which ensures that the charge is sent to the battery at the correct voltage.)

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What are the common symptoms of alternator problems?

Common signs of car alternator problems include the 'charge' or battery lights flashing on the dashboard, flickering or dimming headlights and interior lights and a growling or whining noise under the bonnet.

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What is the average alternator repair cost?

An alternator can be rebuilt as opposed to replaced, however in truth the difference in cost is often quite small. Either way the most common repair cost is around £150-200.

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How to test an alternator for problems

A simple way to test an alternator for problems is to do what's known as the headlight test. Park your car with the headlights on or run it in neutral, then rev the engine. If the headlights dim you could well have an alternator problem. A better test is to take your car to a garage, where a car alternator can be tested using a multimeter tool.

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What happens if my alternator breaks?

If your alternator fails, your car battery won't charge and, very soon, will have insufficient charge to start the car.

Average rating for  Alternator Repair in London bookings

4.65

172 reviews

Alternator Prices in London

Alternator repair prices can vary depending on your car due to differences in labour time and parts needed but you can expect to pay between £250-£300. Take a look below at the average quote on WhoCanFixMyCar.com for some of the top car makes.


Alternator Repair Cost by Car Make in London
Car MakeAverage PriceGet Quotes
Ford£327.69
Vauxhall£298.12
Volkswagen£295.12
Peugeot£375.44
Mercedes£457.30
BMW£363.46
Audi£379.58
Nissan£334.66
MINI£319.00
Renault£351.64
Volvo£386.00
Citroen£305.56

This table uses data from quotes provided on WhoCanFixMyCar.com between 28/07/2021 and 26/10/2021.

Gary from Complete Mechanics explains the workings of the alternator