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 (2,161 found)
Mobile Mechanics and Tyres
5125 Jobs Completed
Barnet
4.8 / 5

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

Holts Mobile Mechanic’s
12 Jobs Completed
Southall
5.0 / 5

Here at Holts Mobile Mechanic’s we strive to be the best. Our mobile garage on wheels will come to your door!. We provide professional, knowledgeable and trustworthy repa

Zafar Automotive Repairs
669 Jobs Completed
Sydenham
4.3 / 5

We are a Mobile Automotive Repairs Service. We have been in the industry respectfully for the last few years with a fully established network within London, Essex, Surrey

Mem's Mobile Mechanic Services
29 Jobs Completed
Sidcup, Blackfen
5.0 / 5

We come to you! Experienced MOT Tester & Mobile Mechanic with experience over 15 years. SERVICES OFFERED include : MOT Failure repairs Servicing including hybrid

AMZ Motors Ltd
33 Jobs Completed
London
4.2 / 5

Established in 2002, we offer a wide array of services for cars. With five ramps and parking area that can accommodate up to 30 cars, AMZ aims to satisfy every customer.

SR Mobile Repairs
45 Jobs Completed
London
3.7 / 5

Welcome to SR Mobile Repairs, we primarily offer a mobile service for all repairs we undertake at a location of your choosing. all work comes with 1 years parts and labou

Platinum Motoring Solutions Ltd.
972 Jobs Completed
Romford
4.9 / 5

Established in 2008 with over 7 years of experience, Platinum Motors is a well-known, locally run business based in Romford. We pride ourselves on providing an honest and

Mobile Roadside Mechanic
32 Jobs Completed
Greenwich
5.0 / 5

Your Trusted Mobile Roadside Mechanics in London and Surrounding Areas Welcome to Mobile Roadside Mechanics Team, your premier choice for expert mobile roadside mechan

Queensway Autos
778 Jobs Completed
Enfield
4.6 / 5

If you’re looking for repairs in Enfield that you can trust, Queensway Auto Repairs is the garage for you. We’re a local garage in the area, priding ourselves on our cust

London Autocare LTD
501 Jobs Completed
Sutton
4.6 / 5

Ower 10 years experience Accident Repairs Engine rebuilds Clutches Gearbox reconditioning Brakes Services ECU Remapp and programming Tyres

PKB Motor Company
814 Jobs Completed
Beckenham
4.7 / 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

SD Performance
39 Jobs Completed
ILFORD
4.6 / 5

At SD Performance we supply aftermarket parts for many brands. Including BMW, Mercedes & VW. Check out our website for more of our exclusive parts

CPS Automotive Ltd.
737 Jobs Completed
Byfleet
5.0 / 5

We are a family run business with over 15 years of experience in all vehicle makes and models. We have a good reputation and positive feedback throughout all of our custo

All Fords LTD
2779 Jobs Completed
Belvedere
4.8 / 5

ENGINES, GEARBOXES, CLUTCHES, TIMING BELTS, CHAINS, SERVICE, TYRES, MOT’s, BATTERIES, ELECTRIC & HYBRID VEHICLES All Fords Ltd specialises in servicing and repairi

Marks Motors | Mobile Mechanic
782 Jobs Completed
Bushey
5.0 / 5

Marks Motors | Mobile Mechanic A friendly, independent Mobile Motor Mechanic. We come to you, your home or place of work. I have many years of extensive experienc

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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

4.61

198 reviews

How much does Alternator Repair cost in London?

The cost of servicing, MOT and repairs differ across the country and Alternator Repair is not any different. Labour rates will be higher or lower depending on where in the country you are. Take a look below at the average quote in London for Alternator Repair on WhoCanFixMyCar.com for some of our top car makes.


Alternator Repair Cost by Car Make in London
Car MakeAverage PriceGet Quotes
Ford£368.10
Mercedes£497.29
Volkswagen£366.95
BMW£512.08
Vauxhall£361.33
Toyota£399.96
Nissan£377.43
MINI£405.78
Citroen£600.75
Renault£468.93
Volvo£413.90
Peugeot£357.51
Audi£497.00

This table uses data from quotes provided on WhoCanFixMyCar.com between 01/09/2023 and 30/11/2023.

Although the alternator is a relatively simple part, it plays a critical role in your vehicle’s operation, so it’s essential any alternator problems are diagnosed correctly and fixed.

Here are some of the most common signs that your alternator is on the blink:

  • The alternator warning light will be on – in most cases this is shaped like a battery but some cars will show ‘ALT’ or ‘GEN’
  • You may experience extremely bright or dimming headlights, or a speedometer that stops working
  • Drivers sometimes complain of a growling or whining noise before the alternator gives out
  • You may experience a smell of hot wires or burning rubber

The average alternator repair cost is between £200 and £300, depending on the model of your , so it’s important you make sure you find the best deal. And that’s where we can help.

Here’s how it works:

  • Simply enter your car registration number
  • Give us some details about your vehicle and the kind of repair work you require
  • We’ll send you a great selection of quotes from mechanics in your area
  • We use our network of 7,000 mechanics and garages across the UK to find you the best deal. You can then compare the quotes, read reviews from previous customers and book your alternator repair online.
  • Enter your registration to compare alternator repair prices, read reviews and book your car in online.
Gary from Complete Mechanics explains the workings of the alternator