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Alternator Repairs in London

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4.6* on Trustpilot

*Based on Trustpilot: out average rating
4.6 out of 5 from 5572 reviews.

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4.6/5 based on over 5572 Trustpilot reviews*
* Based on Trustpilot: our average rating 4.6/5 from 5,572 reviews.
Dynes Motor Group Logo
Dynes Motor Group
391- 395 Erith Rd, Erith, DA8 3LT
1137 Reviews

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General Repair FROM £86

Dynes of Bexleyheath have an extremely skilled, experienced and qualified team of fully trained technicians who are able to help you with all of your car servicing needs. Please use our online booking system in order to book your vehicle in with our team for servicing.

Combined Motor Services Hornchurch Logo
Combined Motor Services Hornchurch
(Romford & Upminster) 187-189 Hornchurch Rd, Hornchurch, RM12 4TE
791 Reviews
No Pass No Fee MOT for April 2021

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General Repair FROM £65

Combined Motor Services Hornchurch At Combined Motor Services we pride ourselves with the excellent services we can provide to all our customers. Not only do we give your vehicle a high-standard of service and care, but our customer service is second to none and we are here to help you get your veh...

Orchard Garage (Offers) Logo
Orchard Garage (Offers)
Unit 6 Chantry Court, Plumpton Way, Wrythe Lane, Carshalton, SM5 2DG
552 Reviews
Family run businessMembers of the Motor Codes schemeCollection and delivery available

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General Repair FROM £78

Orchard Garage is an independent family run business, based in Wrythe Lane Carshalton. We are members of the Motor Codes scheme, one of three, approved garage schemes endorsed by The Trading Standards Institute. We are also members of the Good Garage Scheme, Motor Codes and the MOT Council.

Neves Test Centre Ltd Logo
Neves Test Centre Ltd
25-35, Birkbeck Road, Sidcup, DA14 4DD
669 Reviews

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General Repair FROM £63

An authorised MOT centre, we deliver reliable, quality testing and certification for your vehicle. Our qualified and experienced mechanics also carry out repairs and servicing, and we can provide a collection and delivery service if this is required, particularly in the event of a breakdown or accid...

Fergussons Auto Services (Sutton) Logo
Fergussons Auto Services (Sutton)
Unit 10, iO Centre, Minden Road, Surrey, SM3 9BL
960 Reviews
AA approved

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General Repair FROM £71

Whether for a vehicle service, an urgent repair, or to undergo an MOT, people have long found Fergussons’ Sutton garage the go-to choice. The same is true if they require clutch, brake, tuning or diagnostic work. Our top-notch friendly and professional team will give you the professional service you...

S W B Autos Ltd Logo
S W B Autos Ltd
Rear of 688, London Road, Sutton, SM3 9BY
694 Reviews
Members of RMI, Approved GaragesDiscount for NHS, Fire & PoliceMonthly Payment Options

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General Repair FROM £68

Welcome to S. W. B. Auto's. We have been trading in North Cheam for over 45 years as a Service and MOT Centre for all makes and models. We carry out MOT's on site and have a wide range of tyres should you need. Our Highly trained Technicians are on hand to over see your vehicle needs and get you ba...

What is a Car Alternator?

Your alternator keeps your car’s battery charged, allowing you to start your vehicle and power your electronics. It uses your car’s drive belt to convert the mechanical energy from the crankshaft into electricity. If your alternator fails and stops charging the battery, you can struggle to keep your car moving. That’s why you should always book an alternator repair as soon as you notice a problem.

 

When Do I Need to Book an Alternator Repair?

You should book an alternator repair near you if you notice any of the following warning signs:

  • Your car is difficult or slow to start
  • You hear a whirring, whining or squealing noise from the engine
  • Your car's interior and exterior lights look dim, blink erratically, gradually fade, suddenly get brighter or don't come on at all
  • Your battery warning light comes on
  • Your speedometer stops working.
  • You can smell rubber burning.
  • Your car fails a multimeter test at a garage.

 

How Much Does an Alternator Cost in the UK?

 

Alternator Repairs cost between £100 and £700 in the UK. The average is between £150 to £300 and, while refurbished car alternators ar available, they don't offer that much of a saving.

 

What Causes the Need for a New Alternator?

 

Your alternator is a very durable component, but you can end up needing a replacement if either of the following happens:

  • The brush, a component which maintains constant electrical contact with the spinning alternator, becomes worn.
  • Your voltage regulator fails. This makes sure that the electrical charge is passed to the battery at the correct voltage.

 

Can I Fit a New Alternator Myself?

 

Yes, you can fit a new alternator yourself. However, you should not attempt the process unless you are experienced and know what you are doing. Not only can you cause extra damage to your vehicle, but a live battery can also give you a nasty shock if you don’t disconnect it properly.

To fit a new alternator yourself, you must follow this process:

  1. Disconnect the battery. You must disconnect the terminals in the right order and ensure it is completely disconnected before continuing.
  2. Disconnect the wires from the back of the alternator. Label the wires as you go so you can reconnect them all in the right place.
  3. Remove the belt from the pulley.
  4. Remove the bolts. These connect the alternator to the bracket. Once these are loose, you are then able to get the old alternator out of the car.
  5. Make sure you have the correct replacement alternator. The last thing you need is the wrong sized part.
  6. Reverse the removal steps to install the new alternator.

 

Enter Your Reg and Postcode to Compare and Save on an Alternator Repair Near You

 

If an alternator replacement sounds like too much hard work, enter your reg and postcode to find a garage near you to complete the work instead. You can filter by reviews, labour rate, distance or availability - whatever matters to you the most. Once you’ve compared deals and picked the most suitable garage, you can select your preferred date and time to complete the booking.

You never pay a penny until after your chosen garage has completed your alternator repairs and there are no hidden extras either. When you compare garages near you through BookMyGarage, you can save up to 70% vs booking an alternator replacement direct.

 

Enter Your Reg and Postcode to Compare Deals From Local Garages

 

How Long Does an Alternator Replacement Take?

 

On average, an alternator replacement takes between 1-2 hours. However, this can vary depending on what make and model of vehicle you drive.

 

How Long Does an Alternator Last?

 

If you look after your alternator by driving sensibly, it can last 8-12 years without needing any repairs. Book a car service regularly to keep your car in good condition and avoid putting unnecessary stress on your alternator.

 

Driving in London

London is the most densely populated region in the UK, and so it presents challenges for motorists who need to get around the capital fast. On average, drivers in the London commute zone waste an extraordinary 82 hours a year to traffic congestion. Fifteen of the 25 most congested roads in the country are in London: Bedford Road in Clapham has been rated the worst, with Uxbridge Road in Southall and South Ealing and Eversholt Street in Camden also in the top 10.

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