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Quickly find and book Alternator Repairs in Portsmouth

Looking for a garage to fix your Alternator Repairs in Portsmouth?

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You can search for, compare and book the best Alternator Repairs deal in Portsmouth that best suits your needs, based on price, distance, availability and verified reviews. Book a garage quickly and easily with our online booking tool.


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No upfront registration required, simply enter your registration number and postcode, compare prices, choose a garage which is local to you in Portsmouth and book your Alternator Repairs.

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You can find the best deal in your area and you won’t pay a penny until all of the work is complete, at which point you will pay the garage directly.

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Our customer service team are always happy to help. If you want to speak to an expert mechanic about your vehicle today, call 0330 400 4439.

What motorists are saying about our garages in Portsmouth

What is a car alternator?

A car alternator keeps your car's battery charged, which is obviously important because a charged battery starts your car and powers everything electrical within it. It does so using a drive belt (sometimes referred to as a serpentine belt) to convert the mechanical energy of the car's rotating crankshaft into electricity through a process of induction.

What are the possible signs of a faulty alternator?

  • Your car is difficult or slow to start.
  • Growling, whirring, whining or squealing noises are emanating from your car's engine.
  • Your car’s interior and exterior lights seem too dim, blink erratically, gradually fade, suddenly get brighter or don’t come on at all.
  • The red light on your car’s dash with the image of a battery (or the words ALT or GEN) becomes illuminated.
  • Your speedometer has stopped working.
  • You can smell rubber burning.
  • Your car fails a multimeter test at a garage.

What is the cause of a faulty car alternator?

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

How long does a car alternator last?

  • On average, a car alternator can last for 8-12 years without needing for any repairs.

How much does it cost to repair a faulty alternator?

  • On average, it costs between £150-£300 to repair or replace a broken car alternator depending on the vehicle.
  • Refurbished car alternators are available but do not offer that much of a cost saving.

How and where can I get a car alternator repaired?

  • BookMyGarage is partners with over 9,000 garages in the UK so we can almost certainly find one to repair or replace your car.
  • Go to bookmygarage.com, enter your car registration and postcode, and then press the search button.
  • Sort the results by etc.
  • Call one of our expert mechanics on 03304 004439 for help and advice if needed.

Driving in Portsmouth

This waterfront city in Hampshire is the most densely populated city in the UK. This means that traffic can build at Portsmouth’s rush hour, but that it’s also packed with things to do and see for all ages.

Tourists are drawn to the area for its proximity to the sea, but Portsmouth’s naval history is also a prominent feature with numerous related attractions, such as The Historic Dockyard, the D-Day Museum, the Royal Naval Museum, and the Royal Marines Museum. A number of iconic ships adorn the dockyard such as the HMS Victory, the HMS Warrior and Henry VIII’s Tudor warship the Mary Rose. For those who can handle heights, there are marvellous views from the observation deck of the Spinnaker Tower, a sweep of glass and steel shaped like a sail, which lays claim to being Britain's tallest tower outside London.

Portsmouth has a prestigious literary history and is the birthplace of many celebrated authors from Sir Arthur Conan Doyle to Michelle Magorian, H.G. Wells to Neil Gaiman and most notably, Charles Dickens. The modest house in Old Commercial Road was his former abode and has been restyled to resemble the original Dickens family home.

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See garages for Alternator Repairs in Portsmouth

Drive-in Automotive Logo
Drive-in Automotive
1 stars2 stars3 stars4 stars5 stars13 Reviews
Durham Street, Portsmouth, PO1 1NA
COPNOR BRIDGE MOT CENTRE Logo
COPNOR BRIDGE MOT CENTRE
1 stars2 stars3 stars4 stars5 stars2 Reviews
UNIT 2, COPNOR BRIDGE BUSINESS CENTRE, MILTON ROAD, COPNOR, PORTSMOUTH, PO3 6AP
M&N Autos Ltd (Portsmouth) Logo
M&N Autos Ltd (Portsmouth)
1 stars2 stars3 stars4 stars5 stars1 Reviews
Unit 7b,culverin Square, Limberline Road, Hilsea, Portsmouth, PO3 5BU
Express Servicing Centre Logo
Express Servicing Centre
1 stars2 stars3 stars4 stars5 stars57 Reviews
Dundas Spur, Portsmouth, PO3 5NX
Griffin Motor Company Logo
Griffin Motor Company
1 stars2 stars3 stars4 stars5 stars11 Reviews
27 Limberline Spur, Portsmouth, PO3 5DZ
PGS Ltd Logo
PGS Ltd
1 stars2 stars3 stars4 stars5 stars49 Reviews
PGS Garage Services, Unit 1a, Hamilton Road, Cosham, Portsmouth, PO6 4QE

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