Rain Water Leak Detection Service

We have been helping people with wet carpets for over 30 years.

We offer carpet drying, mould decontamination, rain water leak finding and fixing. We can even collect your Car.
Our customers come from London, the South East and even further.

Locating A Water Leak

If you have water dripping on your shoulder from a leaky sunroof every time it rains, then it's pretty obvious where your leak is.

But as often as not, you may find your car begins to smell of stale water and your carpets are wet/damp, but there's no obvious cause of the leak. Electrical problems can also be an indication that water is leaking into the car.

We have a range of methods for detecting leaks, and we can also deal with mould, odours and dry your car.

Most cars will have just one water leak, although in some cases there may be several water leaks in one area, like around a windscreen for example.

A small minority of cars possibly may have several water leaks and this is often the case with cars that have experienced body damage, a recent respray or older cars where rubbers and seals may have perished uniformly.

Sometimes it's not really possible to know that there are additional leaks until the first leaks are identified and fixed.

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 footwell.

3 Hour Water Leak Diagnosis Service

Diagnosing leaks is often a very complicated business so we aim to make it as quick and easy as possible for our customers. We break it up into three easy steps, diagnosis, repair and drying. We recommend this 3 Hour service as the first step in that process which will be best choice for the majority of cars.

This great value for money package includes:-

  • UVL Wet Thermo-Fogging using anti-microbial - because mould tends to grow inside wet cars. This surface treatment makes the car safe for us to work on and for you to drive away.
  • We hunt down your leak - You might already have a rough idea where your leak is coming from, either way we will hunt it down using Fog, Coloured Ink, Sonic Sensors, Micro-Cameras or whatever it takes to get the job done.
  • Databse Check - We check against our database for known and hidden issues, then test to see if your car has any of the same problems.
  • 28 Point Inspection - We then check other areas that are known to cause leaks, These include a windscreen check, scuttle area, drainage holes, door membranes, gutters and door rubbers.
  • 20 Minute Rain Test Arch - Your car is then parked under our custom built rain arch for a rain simulation test. If this final test indicates there might be additional areas of water ingress, and your car needs further testing beyond three hours, we will call you and give you the option for us to continue at our hourly rate.
  • Video Report - We take a video of our findings and recommendations. We can then email or text your video directly to you.
  • Estimate - You will be supplied with an all inclusive, no obligation estimate for repairs and drying, so you can decide what you want to do next.

Guarantee - For us to guarantee that your car is absolutely waterproof and leak free, we would have to spend many hours checking and reckecking. But you probably dont want to pay us to do that. On the other hand, most leaks can be found fairly quickly, and you would probably prefer us to stop looking once we have found what we were looking for, so this service is a compromise, designed save you money. We guarantee that you will not leave here without us having found your leak, even if it takes us longer than the three hours.

3 Hour Water Leak Diagnosis Service Prices:

Quick, simple and great value for money, this picks up the vast majority of problems and we believe this service is the best option for most cars*.

Inspection Price
3 Hour Water Leak Diagnosis Service
Includes 28 Point Inspection, Database Check, Rain Arch Test, Video Report & Estimate.
Plus Free UVL anti-microbial thermo-fogging Worth £60.
£150.00 inclusive

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"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   

*About nine out of ten cars have just one or two leaks -- maybe three. When cars get to a certain age, you might find that gromits and seals will shrink, adhesives fixing membranes dry out, or plastic clips become brittle and break, so if you have one thing, it's not uncommon to get a couple. However, one in ten cars will have sprung leaks all over the place. But don't worry if you are unlucky enough to have that tenth car, if more leaks appear, we won't charge you for this service all over again as there's no point going over old ground. Additional work can be done at our hourly rate.

What happens next?

Fixing Water Leaks

Step two is to fix whatever has caused the leak. In most cases, this is just a matter of cleaning out some guttering, unblocking a drainage hole or replacing gromits, seals, membranes or clips which have perished. Sometimes cracked lights or trimm might need to be replaced, windscreens require refitting, dashboards might need to be removed to access leaking pipes, and occassionally, when cars have had previous crash repair, we have needed to re-weld bulkheads.

Like you, we will have our fingers crossed that it's something easy and inexpensive because we don't enjoy removing dashboards any more than you enjoy paying for it.

If it's more than just cleaning some leaf debris out of your scuttle and repairs need to be done, they will be listed in the estimate. You might want us to do the work while we have the car, but you don't have to decide right away. You might want to take the car to your local mechanic or do the work yourself. It might need a windscreen refitting and you have recourse with the windscreen fitters.

There are many reasons why your car may leak, often we can fix them here, but if not there are plenty of companies right here in Chelmsford that can help. We will be happy to help advise you and liase with other companies if necessary.

The Final Step

Once the leaks have been found and fixed. The third and final step is drying your car, decontamination and dealing with odours.

Top 20 Leaky Cars

In no particular order, this is a list of cars we tend to work on most. Most of them have known issues.
  • Renault: Clio, Espace, Scenic, Mégane
  • Peugeot: 106, 107, 108, 207, 306, 307, 406
  • Fiat: Punto, Uno, Multipla, Bravo, Brava
  • Vauxhall: Corsa*, Astra, Vectra, Yaris,
  • Landrover: Discovery
  • Ford: Focus, Fiesta
  • Alfa-Romeo: 147, 156, GTV
  • Saab: 9-3, 9000, 900,
  • Toyota: Rav4, Aygo
  • Citoren: Saxo, C1
  • Mitsubishi: Pajero
  • Audi: A4, TT, A8, A6
  • Porsche: Boxter, 911 convertible
  • BMW: X5, Mini, 5 Series
  • Volkswagen: Beetle, Golf, Up, Eos
  • Mazda: MX5
  • Mercedes: SL, Smart Car
  • Seat: Mii, Leon, Ibiza
  • Škoda: Citigo
  • Volvo: C70

* With Vauxhall/Opel Corsa, nine times out of ten the problem is the seal on plates behind a servo and the driver's pedals. These will require replacement at a garage.

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 so we have a policy that if the service we recommend doesn't eliminate the odour, we allow you to upgrade to the next service and you only pay the difference.

Drying Cars

When you have damp, soggy or wet carpets it's easy to assume it's only about a cup full water in your foot well, but with the carpet underlay sodden, it's more likely it's over a gallon and could easily be 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) we then use an extractor to remove the water, we then use de-humidifiers, air-movers and pipe in warm air to get the car dry.

Odour Removal Prices:

Service Prices
Accident Clean-up from £29.70
Pairing Thermo-Fog £60.00
Double Fog + Antimicrobial + Targeted Injections £222

All prices include VAT

Car Drying Prices:

Service Prices
2hr power blow dry piped dry air £26.40
9000watt hot blower : overnight 15 hours £135.40

All prices include VAT

* Prestige cars with very thick underlay can take several days to dry

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.

Hourly Rates: Water Leak Diagnosis & Repair


Service Prices
Per hour (excluding parts) £49.00
Material costs per hour * £9.00

All prices include VAT

75% of leaks are detected in the first hour.

95% are detected within 2 hours.

After the inital hour, the price of identifying and fixing leaks is charged in 15 min blocks as they may only take a few minutes.

*For specialist machines and products such as solvents. Normal materials/sundries are in included in the hourly rate, eg detergents, masks & gloves.

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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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