We’ve all had that dreaded experience of turning our key in the ignition and finding out that the car won’t start. In this type of situation, a flat battery is the most common cause.
But not to worry, Lawfix Automotive offers fast, affordable and reliable Car Battery Replacement Services, right here at our Cardiff Garage. Whether you own a small hatchback or a family estate, our expert mechanics can be relied on to replace your battery and get you back on the road the same day.
Struggling to get to our garage? We offer a complementary collection and drop-off service as part of our service! Get in touch via phone, email or the on-screen enquiry form now and one of our experts will be in touch!
EXCELLENT Based on 39 reviews Posted on Google Heather JonesTrustindex verifies that the original source of the review is Google. Excellent service and happy with jobPosted on Google Vishal Rao DhaipuleTrustindex verifies that the original source of the review is Google. Joey is excellent in what is does. also, does the job quickly and hassle free. He is the right man for the right job. 👌☺️Posted on Google Sharon DaviesTrustindex verifies that the original source of the review is Google. ⭐️⭐️⭐️⭐️⭐️ I can’t recommend Law-Fix Automotive Ltd enough! Joe managed to book my car in straight away and carried out a really thorough inspection before purchase. He even sent me a detailed video of the underside (something I’d never normally get to see), talking me through everything clearly and in a way I could understand. He also gave it an extensive test drive and ran full diagnostics to check for any hidden issues. The communication was outstanding, the service above and beyond, and the pricing very fair. An honest, professional garage I’d recommend to absolutely everyone!Posted on Google Tomos GwynTrustindex verifies that the original source of the review is Google. Excellent service from start to finish from Joe - would highly recommend! 👊Posted on Google James EdmondTrustindex verifies that the original source of the review is Google. Joe is such a great guy. 100% trust him to keep my campervan running smoothly so I never have to stress about any van maintenance ever again I just leave it to him 😂. I always recommend him to all my friends and family 10/10Posted on Google Michael JonesTrustindex verifies that the original source of the review is Google. I recently used the garage for a clutch replacement. Joe is a courteous, friendly and very knowledgeable mechanic. He explained the problem to me thoroughly, setting-out details of the work to be done, together with a cost estimate (which was a really accurate prediction). The work was carried quickly and efficiently. A major, positive service provided in the Cardiff area is that a customer’s car is picked up from their home and returned when work on the car is completed. What a bonus that is!! Thank you, Joe, for a very a very hassle-free experience.Posted on Google Joe CameronTrustindex verifies that the original source of the review is Google. Joe's a top bloke! Sorted my car issues quickly and was kept me updated throughout all of the process! Highly recommend!Posted on Google Adam OakleyTrustindex verifies that the original source of the review is Google. Joe's a top guy, wouldn't use anyone else 👍🏼Posted on Google M DTrustindex verifies that the original source of the review is Google. Called Joe to look at a coolant leak on my Smart car, Joe got me booked in straight away and instantly found the leak. Problem was fixed within a few hours and was sent two videos detailing the issue. Very good price and excellent service, will be coming back.Posted on Google Colin ParkerTrustindex verifies that the original source of the review is Google. Absolutely 💯% brilliant service,kept me informed via video,would definitely recommend Law-Fix AutomotiveVerified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
Stranded with a dead battery? We all know how frustrating an issue this is. When your car breaks down, your first priority is getting it back on the road at the lowest possible cost.
Here at Lawfix Auto, we’ll come and collect your vehicle and take it to our Cardiff Garage for testing and inspection. We’ll run a full diagnostic check to confirm whether the issue is with your battery or another electrical component.
If a full battery replacement is required, we’ll get the job done the same day at the best price in Cardiff!
There are some pretty typical reasons behind why a battery fails. These are:
Age – A standard car battery typically lasts 3 to 5 years, depending on vehicle usage. After this timeframe, the risk of needing a replacement heightens.
Frequent Short Trips – Vehicles that are always taking small trips put stress on the alternator and don’t give it the time it needs to recharge properly.
Extreme Temperatures – Extreme heat or cold in the peak of winter and summer puts stress on your battery, heightening the risks of breakdown.
When it comes to dead car batteries, there are some key signs that yours needs a change. These include:
The engine is struggling to turn over
Dashboard battery warning lights are coming on
Flickering headlights
Constantly having to jump-start your car
Problems with car electrics (radio/windows/etc)
If you notice any of these signs, feel free to book in with us for a quick battery testing service, where we can identify the root cause of the issues you are facing.
Car battery replacement prices in Cardiff usually depend on your vehicle, the required battery type, and whether your car uses stop-start technology. At Lawfix Automotive, we’ll confirm the correct battery for your make and model before we begin the work, so you know the price in advance.
| Battery Replacement Service | Price Guide | What’s Included |
|---|---|---|
| Battery Health Check | Free with replacement / from £25 standalone | Battery condition check, voltage test and advice on whether a replacement is needed |
| Standard Battery Replacement | From £150 | Supply and fitting of a standard replacement car battery |
| Stop-Start Battery Replacement | From £180 | Supply and fitting of an AGM or EFB battery for stop-start vehicles |
| Premium Battery Replacement | From £220 | Higher-capacity battery replacement for larger vehicles, vans and cars with higher electrical demand |
| Battery and Charging System Check | From £60 | Battery test, alternator output check and basic electrical inspection |
| Battery Fitting Only | From £35 | Fitting of a customer-supplied battery, subject to compatibility |
| Collection and Drop-Off Service | Free | Free local collection and return of your vehicle where available |
For an accurate quote, send us your registration number or give us a call with your vehicle make and model. We’ll check the correct battery type, confirm availability and let you know the fitted price before any work is carried out.
Frequent short journeys can stop your battery from fully recharging, especially if you only drive for a few minutes at a time. Longer journeys give the alternator more time to recharge the battery properly.
Interior lights, headlights, dashcams, chargers and other electrical devices can drain your battery if left running while the engine is off. Always double-check that everything is switched off before leaving your vehicle.
Cold weather puts extra strain on car batteries, especially older ones. If your battery is more than three years old, it’s worth getting it tested before winter to reduce the risk of a breakdown.
If your engine is taking longer than usual to turn over, your battery could be losing strength. Booking a quick battery check early can help you avoid being stranded with a completely flat battery.
Loose or corroded battery terminals can affect how well your vehicle starts and charges. If you notice corrosion around the terminals, book your car in so the connections can be checked safely.
If your battery keeps dying after being recharged or replaced, the issue may not be the battery itself. A faulty alternator, poor connection or electrical drain could be causing the problem.
Call us, send an enquiry or provide your registration number so we can check the correct battery type and confirm availability.
We test the battery and charging system to make sure the fault is not being caused by the alternator, poor connections or another electrical issue.
If a replacement is needed, we confirm the correct battery and fitted price before carrying out the work.
We remove the old battery, fit the correct replacement and check the vehicle starts and charges properly before you leave.
Super affordable battery replacement pricing. Price matched across Cardiff.
We keep you regularly updated and send progress photos.
No waiting forever. We tell you the date you can expect your car back and we stick to it.
We can collect straight from your door, saving you the stress of sorting a lift back home!
Typically, every 3-5 years. If you’re struggling with battery issues within this timeframe, book in for a car battery testing appointment.
Usually costs between £150 and £300, depending on the make and model of your vehicle. If you give us a call and let us know the make and model, we can provide an accurate quotation for a battery replacement service.
You can, however, risk breaking down and becoming stranded. It’s better just to address the issue head-on before it dies completely.
It’s very fast. It usually takes us less than 45 minutes to replace the battery unit.
Yes, our car battery testing service will also test your alternator.
Absolutely. Our experienced mechanics can replace car batteries for all car makes and models.
Yes, extreme heat and cold can harm your vehicle’s battery.
Lawfix Autos offers very affordable cat battery testing and will waive the cost if you carry out your replacement work with us.
No, unfortunately not. However, we do offer a free collection and drop off service.
Yes, we offer free local collection and drop-off. If your vehicle will not start because of a flat battery, contact us with your location and vehicle details, and we’ll come out and collect ot for you.
Not always. A flat battery can be caused by the battery itself, but it can also be caused by alternator faults, poor connections, parasitic drain or another electrical issue. That’s why we test the battery and charging system before recommending a replacement. We’ll diagnose the root cause of the issue and let you know what it is before we undertake any work.
Yes. If your battery keeps going flat, we can check the battery condition, alternator output, charging system and signs of electrical drain. This helps us find out whether you need a new battery or whether another fault is causing the issue.
Yes, we can supply and fit the correct battery for your vehicle. Send us your registration number and we’ll check the correct battery type, confirm availability and provide a fitted price before carrying out the work.
In some cases, yes. The battery must be the correct type and specification for your vehicle. If you already have a replacement battery, contact us with your vehicle details and battery information so we can confirm whether it is suitable before fitting.
Some modern vehicles need battery coding or registration after replacement, especially vehicles with stop-start systems or advanced battery management. We’ll advise what your vehicle needs before fitting the new battery.
If a new battery goes flat again, the issue may be with the charging system, alternator, wiring or an electrical drain. Contact us and we’ll advise the next step. We always recommend testing the battery and charging system first to reduce the risk of replacing the wrong part.
Yes, if we replace your battery, we can dispose of the old battery safely. Car batteries should not be placed in general waste because they contain materials that need proper handling.