Kent · London and the South East
Swanley Electronic Leak Detection
We take a careful look at the flat roof membrane at your property in Swanley, and put it all in a written report with photos.
- Leaks through a flat roof with no obvious cause
- Waterproofing to test before it’s covered
- Breaches hidden under paving or planting
Electronic leak detection in Swanley
Green roofs, ballasted roofs and roofs under paving are harder to test. What sits on the membrane can affect which method will work, and some may need lifting. We will discuss it with you when we quote. Drawings or details of the roof’s layers are useful, as they show what lies beneath the surface. We will tell you if the roof can’t be tested. We’re frequently asked to look into leaks that return after repairs and holes left by work on the roof, on liquid-applied waterproofing, roof terraces and balconies and green roofs.
Outbuildings, garden rooms and garages in places like Swanley often have flat roofs of their own. They’re easy to forget, but water through a garage roof can spoil whatever is stored inside. It’s worth mentioning them as you book, so the visit can include them, along with the main flat roof. Felt, rubber and GRP coverings on garages and outbuildings age in just the same way as the main roof’s.
You can share the report with anyone who needs it: a seller or estate agent, an insurer, a roofer, a builder or a managing agent, whichever applies.
- Place
- Swanley (BR8)
- Region
- Kent
- Cost
- Quoted for your roof
- Reports
- Written, with photos, emailed to you
- When we survey
- Weekdays and weekends
- Insured
- Professional indemnity and public liability
- Call
- 07833 053749
- Last updated
- 27 October 2026
The survey, step by step
Before we start, let us know why you’ve booked: a purchase, a leak, a storm, new work or simply peace of mind. It helps us focus on what matters most to you. Most visits take longer on a large roof than a small one, with the construction of the roof playing a part too. A visit to a smaller place like Swanley is no different on the day: outside, inside and from any safe vantage point, in that order. It’s useful to show us anything you’ve already noticed.
- You let us know about the roof and where water is showing.
- We check whether the membrane and build-up suit ELD.
- We choose a low-voltage or high-voltage method to match the roof.
- We test the roof and locate any breaches.
- You get a report with photos of each breach.
Getting ready for the survey
- Leave a clear route to the loft
- Unlock side gates and any roof access doors
- Dig out any old roof reports or invoices
Arrange a survey
To book a survey, phone 07833 053749 or email us with the address and what you’d like to know about the roof. You will know the price before anything is booked.
Related advice
Other services in Swanley
What affects the cost of electronic leak detection
Every roof is different, so prices are confirmed before booking. These are the things that affect it:
- House, block, shop or office
- How many separate roofs there are, such as extensions, dormers and garages
- If the survey needs thermal imaging or a drone
- Chimneys, valleys, parapets and other details
For a price for your roof in Swanley, phone 07833 053749 or email us with the address and some details. We’ll confirm the figure before booking.
Booking your survey
What helps most when you contact us:
- Whether there’s a loft hatch, a shared roof or tricky access
- Where water is showing inside, if it is
- The address and postcode of the property
- The style of property, from a terrace to a block
Photos help, if you have them. Take them safely from the ground or a window, and please don’t climb up for a closer look. To get started, call 07833 053749 or send us an email.
What you can safely check yourself
What you can’t do safely is get up close. Roofs are fragile and slippery. That part is for a survey, using safe viewpoints and a drone where applicable.
During heavy rain, look at the gutters from the ground or a window. Overflowing water can point to a blockage or a sagging run.
Landlords, agents and block managers in Swanley
Businesses and commercial landlords can book us too, including offices, shops and units. Larger roofs take longer, and they’re priced for the size.
Roof problems in a rented home affect tenants as well as the building. A survey helps you spot issues early and plan the work with less disruption.
Your questions about electronic leak detection in Swanley
Will you come out to Swanley?
Yes, smaller places are covered as well as towns. We survey roofs across London and the South East. Just mention lanes, gates or anything else about the route as you book.
Is Swanley in the area you cover?
Yes. We cover the whole of London and South East England, and Swanley is part of that. Just ring 07833 053749 or use the contact form and let us know about the property, and we will talk through which survey suits.
Do you survey on Saturdays and Sundays?
Surveys can be booked for any day of the week: weekdays, Saturdays and Sundays. Just let us know the days that suit you.
What does electronic leak detection do?
The waterproofing membrane normally stops an electrical current, so wherever there is a hole, it passes through. That lets us find breaches that are too small to see.
Do I need to be at home?
Someone needs to let us in if we’re looking inside or in the loft. Access is agreed with you as you book.
Are you structural engineers?
No. Visible signs like deflection or sagging are recorded, but calculations and an engineer’s opinion are outside what we do. The report will say if you need an engineer.
Does this replace a RICS home survey?
No. We look at the roof, not the whole building, so it is not a RICS Level 2 or Level 3 survey. It can sit alongside a RICS survey if you want both.
Signs you need electronic leak detection in Swanley
Other trades on the roof can puncture the waterproofing. Engineers fitting equipment, solar panels or aerials may leave damage behind.
Look out for signs like these:
- Leaks through a flat roof with no obvious cause
- Leaks showing away from the breach
- Leaks through a covered membrane
- Gaps at membrane joints
For site and facilities teams at buildings like St Bartholomew's Catholic Primary School, ponding and blocked outlets on a wide flat roof are worth catching before the next wet season.
Before booking anyone
- Do they have a CAA Flyer ID and Operator ID for drone work?
- Their insurance cover
- Whether VAT is in the quoted price
- When you will get the report
Leave it or get it looked at?
Water trapped under a membrane can soak insulation and decking. Locating it early helps limit the damage. Blocked gutters on homes around Swanley overflow and soak walls. Dealing with the cause is simple; drying out a wall is not.
Every price we give includes VAT. We quote electronic leak detection for each roof, as the method and time depend on the roof. You will know the price for your roof before you book.
Why choose Independent Roof Survey in Swanley
- Thermal imaging and drones used where they help
- Independent findings on the roof’s condition
- CAA-registered drone operator (Flyer ID and Operator ID)
- A written report with photos
Read what a roof survey costs or what we found on two real jobs.
Flat roofs in Swanley
Lullingstone Castle, about 2.9 miles south, is one of the historic houses in the wider area around Swanley. If your home is one of the older ones, expect a mix of original materials and later repairs on the roof, and any change of roofing material on a listed home needs checking with the council first. Across Kent, older roofs are often handmade clay or peg tiles, and tile-hanging on upper walls is a familiar sight. You’ll also find oast houses and timber-framed Wealden hall houses among the county’s older buildings. Flat roofs fill the gaps in between, on extensions, garages, dormers and business premises.
For landlords with property near Swanley station, flat roofs on let property tend to be checked only when they fail, which is the costly way round. Take an older house close to St Mary the Virgin: the joins between later flat roofs and the old walls are where problems usually start.
Swanley is about 3 miles east of Orpington, in Kent. Swanley is one of many places we visit across Kent. Swanley is one of the places in Kent where we work for electronic leak detection. We also survey roofs in London.
Every address in BR8 is covered for electronic leak detection, from the main roads to the quietest streets. You will find streets such as London Road, Station Road and High Street, all of which we cover. Swanley sits on or near the A20 and B258, so getting to you is simple. If you are just outside Swanley, we cover Crockenhill (1 mile south-west), Kevington (2 miles south-west), Derry Downs (3 miles west), St Mary Cray (3 miles west) and St Paul's Cray (3 miles west). Within a short drive, we also cover Dartford (4 miles north-east), Sevenoaks (8 miles south), Gravesend (9 miles east), Tonbridge (14 miles south), Northfleet (8 miles east) and Kings Hill (13 miles south-east).
Near you in Swanley
Around Swanley, our work takes us to homes and buildings near Orchards Academy and the streets around them. Swanley has its own railway station: Swanley station. Other landmarks nearby include London Borough of Bromley Museum (3.2 miles south-west) and Queen Mary's Hospital (3.4 miles north-west). Green spaces nearby include The Warren and Summer Hill.