Roof Leak Detection

1-hour priority attendance
Local roofing experts
Fixed price leak repairs
Half hour rates from £54.00 + VAT

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If you are unfortunate enough to have water stains or even water dripping from a ceiling and suspect a leaking roof is the source of the problem, you’ll want to resolve the issue quickly.

However, sometimes, faults in a roof are so small that even an experienced roofer will search in vain to find them. Even if a leak is found close to the visible signs of water damage, there’s no guarantee there aren’t other pinhole leaks that remain undetected.

Our roof leak specialists use various high-tech testing methods to find faults in any roof covering. These methods are reliable for accurately locating the source of a leak and detecting multiple leaks in a single visit.

Roof leak detection services

Recruiting for leak detection specialists

Detecting leaks in different roof coverings usually requires a range of tests. Multiple tests are usually used as part of a thorough roof leak investigation.

The methods our roof leak detection specialists use include:

High voltage electronic leak detection test
Thermal imaging cameras
Moisture meters
Moisture analysis kits
Tracer gas tests
Tracer dye tests

Recent customer reviews

Good professional service, with friendly staff. Everything was handled efficiently. We had a leak in the roof, the leak detection specialist found the leak, then the roofer fixed it within a week. It could have been sooner though if I wasn't busy.

David, Shepherd's Bush, W12
The leak detection on our flat roof was carried out very methodically with respect for my property. An excellent service.

Anne-Marie, East Grinstead, RH19
Francis came over on time, and did a fantastic job investigating a leak in the roof. He was very professional, an excellent communicator and was able to identify the source of a few problems very quickly. I would recommend Aspect on the basis of the visit today.

Daniel, Ascot, SL5
The roofer took care to identify the source of the leak examining the roof and the loft space. He explained the scope of works necessary to deal with the problem clearly which included replacement tiles and installing vented tiles. He was very efficient in the way he did the job.

Mark, Epping, CM16
Very conscientious and pleasant personel and engineers. Managed to locate a leak in our flat roof that others had not been able to find. Very neat and professional job. Left the site very tidy.

Jane, Amersham, HP7
I had a leak investigated and repaired on the roof by Marius and could not be any happier with the work that he did. He was very professional and polite and left everything spotless. I will gladly recommend aspect and Marius for all roof works.

Jeffrey, Crowborough, TN6

WATCH: How we detect leaks

A visual inspection of pitched roof tiles or slates will usually highlight the causes of water ingress. In other parts of a roof can be harder to detect and sometimes require specialist leak detection equipment.

This video shows how some advanced detection methods are used to locate a hard-to-find roof leak.

How to find a water leak

Trade accredited experts

We’re proud to be registered with the NFRC, the UK's largest and most influential roofing trade association. The NFRC promotes quality work by accredited roofing contractors.

In addition to manufacturer warranties of up to 25 years, we offer a 10-year guarantee on new roof-covering installations. We also provide a 12-month workmanship guarantee on roofing repairs for peace of mind.

With over 20 years of experience, we come highly recommended for providing a service you can trust.

Roof leak detection rates

Our roof leak detection attendances are charged in half-hour increments (1-hour min.).

Roof Leak Detection Rates

From £54.00 + VAT on weekdays
From £69.75 + VAT on evenings and weekends
From £90.00 + VAT for late nights (9pm to 7am)

Duration Discounts

A discount to the half-hourly rate will be applied to your invoice if our roofer is on-site for extended hours:

Half day (4 hours & more) = 5% off
Full day (8 hours & more) = 10% off

Emergency Roof Leak Detection

There is no extra charge for emergency calls. We aim to have a roof leak detection expert on-site within one hour of your booking.

Our pricing

From £42.75 per half-hour
One hour minimum
£10 off when you book online
Fixed pricing for planned work

Check our rates

Contact us

We’re available 24/7
Use our callback form
Tell us what you need
We’ll call you within 15 mins

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Flat roof leak detection

The high-voltage electronic test we use to detect the source of water ingress through flat roof coverings is very reliable. The device indicates when a hole in the roof membrane allows water to pass through to the hard deck.

It’s a cost-effective way to find multiple leaks in a degrading roof. It can be used on any type of flat roof, except some metal roofs. However, the roof surface must be dry to conduct a high-voltage leak detection survey, which is also known as a “dry test.”

No hidden extras

What you get from Aspect

Experienced & vetted tradespeople
24 hour availability for all trades
Dedicated technical support team
Aspect Guarantee on workmanship
Peace of mind from trade accreditation

Occasional extra costs

Parts and materials used
Collection of parts and materials

We won’t charge you for

Cost of parking
Fuel or travel time
Congestion Charge
ULEZ charge

Areas we cover

As a guide, we have roofers available to work in all 32 London boroughs and the City of London, as well as every other postcode district that’s within the M25.

If you need one of our roofers just outside the M25 we might still be able to help. Call our scheduling team to check availability. They’re ready to take your call 24 hours a day, 365 days a year.

Check the areas we cover

Can’t find the information you’re looking for?

Aspect - accredited roofing contractors in London and the Home Counties

Our other roofing pages

Our expert roofers can be booked for a wide range of tasks. Read more about the range of services we provide here: –

Flat & felt roof repairs; we can fix any type of flat roof problem, from damaged roof coverings or drainage issues to faulty flashings or brickwork
Roof inspection survey; if you’re unsure of the condition of your roof, we’ll provide a thorough survey detailing any maintenance work needed
Broken gutter repairs; defective guttering and drainage isn’t just an inconvenience, it can result in serious damp problems inside a property
Gutter cleaning services; we use specialist vacuuming equipment to make gutter clearing quick and easy, and ideal for hard to access gutters
24/7 emergency call outs; with a large team of roofing contractors in London we can usually have someone with you to help the same day
Glass roof cleaning service; our PureWater, streak-free, cleaning system allows us to clean glass roofs plus hard to access windows and soffits

Knowledge articles

Gutter guards & maintenance

Gutter guards might seem an easy option for roof maintenance. However, regular checks and cleaning are needed to prevent blockages and protect against water damage to roofline timbers and roofing repairs... Roof drainage advice
The cost of a new tile roof

Our roofing experts have answered the most common questions around the cost of a new roof. Call our Customer Service team to arrange an accurate free of charge estimate visit to replace your roof... Roof replacements
Common issues found on roof surveys

When was the last time you had a detailed survey of your roof? Our roofers explain the most common issues found when they survey a roof, and why it pays to know the condition of your roof covering... Tile roof surveys