Car Water Leak Specialsts

Rain Water Leak Detection Service

Providing rain water leak detection and repair services for over 30 years.

We offer rain water leak finding and fixing, carpet drying, and mould decontamination. We can even collect your vehicle.
Our customers come from Essex, London, Kent and even further.

Expert Car Water Leak Detection & Repair

Sunroof leaking water every time it rains? Then it's pretty obvious where your leak is.

Smell stale water? Carpets damp? Mould visible? Not so obvious where your leak is!

This is often the case for most of the water leaks we deal with at New Again, where there's no obvious cause of the leak but something tips you off and you know you have a water ingress problem on your hands. Somewhere! Another common culprit is condensation on the windows. Electrical problems can also possibly indicate that water is leaking in.

Most vehicles will have just one water leak, although in some cases a small minority may possibly have several. This is common in vehicles that have experienced body damage, a recent respray or older vehicles where rubbers and seals may have perished. Sometimes it's not really possible to know that there are additional leaks until the first leaks are identified and fixed.

We have a range of methods for detecting leaks, and we also deal with mould, odours and the drying of your vehicle too.

Drying the carpet underlay. Although the carpets often just seemed damp, it isn't unusual for us to extract 6-10 litres of dirty rainwater from floor pans and footwells.

Car Water Leak Repair

If you know where your leak is and just want it repaired we can help. Over 35 years we have fixed thousands of leaky cars, so if it's a leaky sun roof or water is comming through a brake light into the boot, chances are we have seen that problem before and know just what to do to resolve the issue ecconomically. We will document what we have done and guarantee all our work.

Leak Repairs Hourly Rate
Repair work is carried out at our standard hourly labour rate plus cost of parts and materials. All our repairs are guaranteed for one year, new replacement parts are guaranteed for three years.
We will provided you with a PDF report, with photos, detailing the work done.
Including VAT

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"Gary and his team did an amazing job. Really, new again. Well named. They deserve seven stars out of five." ~ Paul Foley   

Car Water Leak Diagnosis Service

Diagnosing leaks is often a very complicated business, even if you think you have found problem, so we aim to make it as clear as possible for our customers.

Diagnosis service includes:-

  • UVL Wet Thermo-Fogging using anti-microbial - because mould tends to grow inside wet cars. Surface treatment making the vehicle safe for us to work on and for you to drive away in.
  • Leak Detection - Locating the source of the problem using the following techniques: 28 Point Inspection (to find all common issues), windscreen check, Fog, Coloured Ink, Sonic Sensors, Moisture Sensors and/or Micro-Cameras.
  • Video Report - Taken to document our findings and detail our recommendations. This is emailed/ texted directly to you.
  • Free Estimate - Providing you with our breakdown on repairing and drying your vehicle where possible.

Water Leak Diagnosis Service & Repair Prices:

Water Leak Diagnosis Price
UVL anti-microbial fogging - prevents/kills mould and mildew, worth £60.
Video Report - walk-through showing leak and explaining the estimate.
Detailed Written Estimate*
Based on approx. 2 hrs standard diagnostic service for straight forward vehicles.
Including VAT

* Addition diagnostic labour needs to be charged at our standard hourly rate for vehicles that have been involved in accidents and/ or need panels & DIY sealant removed etc. in order to locate the problem. In incidences where the dealership needs involvement (for example removing the dashboard to locate the problem), we will liaise with the costumer regarding any additional costs.

Leak Repairs Hourly Rate
Repairs are priced per estimate following our diagnostic service. Repair work is carried out at our standard hourly labour rate plus cost of parts and materials. All our repairs are guaranteed for one year, new replacement parts are guaranteed for three years.
We will provided you with a PDF report, with photos, detailing the work done.
Including VAT

Call Today!

"Fantastic service and really fair, transparent pricing. Had to drive 2 hours to get there but it was worth it. They managed to quickly diagnose a leak that 2 garages had failed to find. Would definitely recommend." ~ Clare Spencer   

What happens next?

Fixing Water Leaks

Had your diagnosis inspection? Next stage is to repair.

Usually, our customers like to go straight ahead with repairs following on from their reports, but we understand it may be a lot to digest. We have a 2-hour grace period before we have to move onto other jobs so we really appreciate your efforts to check the report and consent to repairs before this happens.

We aim to get you back on the road as quickly as possible with minimum fuss but occasionally we may need to be in touch if your vehicle needs recourse through your windscreen or insurance company to fix the repair. We'll keep your updated.


Drying your vehicle, decontamination & dealing with odours is a crucial step. Vehicles take a considerably long time to dry naturally and excess water and damp conditions poses as potential safety hazards to your vehicle and yourself.

This stage will be included on your estimate, for more information on our Drying & Odour services, see below.

Top 22 Leaky Cars

In no particular order, this is a list of cars we tend to work on most. Most of them have known issues.
  • Alfa-Romeo: 147, 156, GTV
  • Audi: TT, A4, A8, A6, Q5
  • BMW: Z3, X5, Mini Cooper, 5 Series, 6 Series, 7 Series
  • Citoren: Saxo, C1, DS3
  • Fiat: 500, Punto, Uno, Multipla, Bravo, Brava
  • Ford: Focus, Fiesta, Titanium, Kuga, B-Max, V-Max, S-Max, Transit Connect
  • Honda Civic
  • Land Rover: Range Rover Evoque, Discovery
  • Lexus 300H, RX400H
  • Mazda: MX5
  • Mercedes: SL, Smart Car
  • Mitsubishi: Shogun
  • Peugeot: 106, 107, 108, 207, 306, 307, 406, 308
  • Porsche: Boxter, 911 convertible
  • Renault: Clio, Espace, Scenic, Mégane
  • Saab: 9-3, 9000, 900
  • Seat: Mii, Leon, Ibiza
  • Škoda: Citigo, Superb
  • Toyota: Rav4, Aygo, Yaris
  • Vauxhall: Corsa, Astra, Vectra
  • Volkswagen: Beetle, Golf, Up, Passat, Jetta, T5, T6
  • Volvo: C30, C70, C60

Odour Removal

Once rainwater gets into your car, there is a good chance that it will result in mould, mildew and bad odours. Often it will be a warm swampy odour that tips you off to the fact that you have a leak.

We shampoo the flooded area and then use enzymes to kill the bacteria that causes bad smells.

Odours can be very difficult to deal with,and the solution is dependent on the original source of the odour. We have different levels of odour removal and decontamination services for you to choose from, but we’ll always guide you with our recommendations to help eliminate the problem.

Drying Cars

When you have damp, soggy or wet carpets it's easy to assume it's only about a cup full of water in your foot well, but with the carpet underlay sodden, it's more likely to be over a gallon, sometimes two or three! This could take months to dry out naturally over the winter, and unless the water is removed it's highly likely that other problems will occur.

To remove the water we would either remove the carpets or lift them (see photo slideshow above) where we’d then use an extractor to remove the water, followed by de-humidifiers, air-movers and finally pipe in warm air to get the car dry.

Odour Removal / Decontamination Prices:

Service Prices
Pairing Thermo-Fog £60.00
Pairing Thermo-Fog + Bio-active or Antimicrobial £130.80
Double Fog + Antimicrobial + Targeted Injections £222.00
All prices inclusive of VAT

For more, please see our Odour-Removal / Decontamination menu.

Car Drying Prices:

Service Prices
2hr power blow dry piped dry air £36.40
Commercial Hot Blower/Dehumidifier: Overnight 15hrs £135.40
Dismantling/fitting - standard hourly rate £72.00
All prices inclusive of VAT

Water Leaks Offer



Booked in with us to fix your water leak? Want to give your vehicle those finishing touches while we already have it? Take advantage of our coatings upgrade offer!

Our range of coatings start at quality long life waxes and go all the way up to 10-year graphene and ceramic sealants. We will give you an upgrade on whatever coating you decide to purchase so your vehicle can experience an exterior makeover too!

*Offer does not apply if you have the Leak Diagnosis Service only. The offer applies to customers that have the work carried out on the full estimate which comes with the Leak Diagnosis Service.


Use Code: WaterLeaks

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Common Problems Caused by Water Contamination

The most immediate problem with a footwell full of water is the threat it poses to your car's electrical systems.

Modern cars are packed full of computers, modules, sensors and wiring, many of these are hidden under the seats and carpets.

Most of these systems are reasonably well water-proofed, or are at least splash proof, so we don't want to overstate the danger, it's not a foregone conclusion that it will ruin all your electrics, but that said, they aren't designed to withstand prolonged damp let alone submersion and they can be very costly to put right. Air bag control units are probably the most likely to be effected which raises safety issues.

electrics hidden under carpet
Electrical modules and wiring under the carpets of an average car. In some prestige and executive models, the quantity of wiring is staggering.

The second problem is that the contamination from dirty rain water is likely to lead to damp problems throughout the whole interior of your car.

If you are waiting for the car to dry out naturally, you're in for a long wait, as unfortunately the water really has nowhere to go.

You will soon notice condensation on the windows causing visibility problems, in winter this can lead to frost forming on the inside as well as the outside of the windows. The general dampness of the car can soon lead to the growth of fungus, mould and mildew and an overall damp, musty smell.

mould growing on seat
Mould growing on damp seats.

New Again

Can We Help You?

"We can offer specialist advice on the best Car Water Leak Service to suit your requirements"

When bringing your car to New Again, we often ask you to explain exactly the reason for having your car Protected, Detailed or Repaired. Once we understand exactly what it is you are trying to achieve, we will appraise your vehicle using our detailed appraisal check-sheet allowing us to identify areas of concern and tailor specific services that match your requirements and budget.

If you are not sure what service you need and would like to speak to one of our technicians, simply request a callback by filling in the form on our contact page.

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