Kent · London and the South East
Electronic leak detection in Dartford, Kent
Electronic leak detection to pinpoint holes in flat roof membranes in Dartford, with drones and thermal imaging where they help. Call or email for a price.
- Breaches hidden under paving or planting
- Breaches around outlets and penetrations
- Failed seams and laps
Electronic leak detection for homes and businesses in Dartford
Electronic leak detection, or ELD, finds holes in flat roof waterproofing membranes. It uses a small electrical current which can only get through the membrane at a breach. It can find holes too small to spot by eye so your roofer knows exactly where to repair. The results come in a report with photos. If you’re worried about leaks that return after repairs and new roofs to check before paving or planting, we can find out what’s behind it.
Garages and porches on estates in towns like Dartford frequently have flat roofs. Cement sheet roofs on buildings from before 2000 may contain asbestos, so a specialist asbestos surveyor should check before they’re disturbed. Each kind of covering, from felt to rubber and GRP, is checked in its own way. Asbestos testing is not part of what we do, though a report may flag materials that could contain it.
The report doesn’t just list problems. For each finding, it explains what it is, why it matters and what we’d recommend, so you can plan your next steps.
- Place
- Dartford (DA1, DA2, DA5, DA13)
- Region
- Kent
- Cost
- Quoted for your roof
- Your report
- A written report with photos, by email
- Appointments
- Weekdays and weekends
- Insured
- PI and public liability insurance
- Telephone
- 07833 053749
- Last updated
- 27 October 2026
Why act early in Dartford
Patching where you think the leak is frequently misses it. Testing shows where the membrane is actually breached. Blocked gutters and downpipes on homes in Dartford overflow onto walls, and damp follows inside. At roof level, a loose tile or tired flashing does the same. Left alone, both only get worse.
What a survey costs comes down to the roof itself: its size, its height, how many sections it has and how safely it can be seen. We quote electronic leak detection for each roof, as the method and time depend on the roof.
What you get with us
- More than 5,000 surveys completed
- Customer satisfaction of 98%
- Over 20 years’ experience
- An independent look at the roof
See what a roof survey costs and what we found on two real jobs.
Electronic leak detection in Dartford: local notes
Hall Place and Gardens, about 2.8 miles west, is one of the historic houses in the wider area around Dartford. On older houses around here, roofs frequently carry the marks of earlier repairs, from replaced slates to new lead, 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. Kent’s older buildings take in oast houses and timber-framed Wealden hall houses as well. Flat roofs fill the gaps in between, on extensions, garages, dormers and business premises.
Take an older house close to Church of the Holy Trinity: any flat roof added at the back or on a dormer is likely to be far younger, and less durable, than the main roof. Landlords with a home close to Dartford station may find that the flat roof over a let home is worth a look before it becomes a tenant complaint.
Dartford is about 14 miles east of London, in Kent. We cover Dartford and the rest of Kent, as part of our work across London and the South East. Across Kent, we cover Dartford. London is in our area too.
We survey roofs across DA1, DA2, DA5 and DA13 for electronic leak detection and the streets around it. Streets in the area include High Street, Market Street and Temple Hill Square, all of which we cover. Dartford sits on or near the A2 and A206, so getting to you is simple. We also cover the places around Dartford: Temple Hill (1 mile north), Hawley (1 mile south), Stone (2 miles east), Clement Street (2 miles south) and Darenth (2 miles south-east). Larger places within reach include Sevenoaks (11 miles south), Gravesend (7 miles east), Northfleet (5 miles east), Swanley (4 miles south-west), Kings Hill (14 miles south-east) and Swanscombe (3 miles east). As one of the bigger places in Kent, Dartford has every kind of building, from houses and flats to offices.
Landmarks near Dartford
We work in homes and buildings around The Rose pub, Stone Lodge School and Leigh Academy. Dartford has its own railway station: Dartford station. Other landmarks nearby include Dartford Library (under half a mile west) and Bluewater (2.1 miles east). The countryside around Dartford includes Wansunt Pit and Sawyers Lake.
What happens on the day
Photos are taken throughout the visit, so the report shows exactly what we saw. We take close-ups from wherever is safe. Most surveys take more time on a big roof than a small one, with the construction of the roof playing a part too. For a home in Dartford, the main things we need are a way into the loft, a route to the back garden and somewhere to park. Someone needs to let us in, so tell us who that will be.
- We agree the area to be tested.
- The surface is prepared for the chosen method.
- We work across the roof with the test equipment.
- We mark the breach locations in our records.
- You receive the results to pass to your roofer.
How to prepare
- If you’re buying, check with the agent that we can get in
- Jot down any questions you want answered
- Tell us about parking before the day
Getting a price
For a price for electronic leak detection in Dartford, phone 07833 053749 or email us. Some details about the property and the roof help us price the survey accurately.
Related advice
How we price electronic leak detection
A few things affect what a survey costs:
- Height and safe access
- The roof’s overall size
- Any need for thermal images or a drone flight
- House, block, shop or office
To find out what your survey will cost, phone 07833 053749 or email us and tell us about the roof. We will confirm the figure before booking.
Helping us price your survey
The more you let us know, the easier it is to price the survey. When you contact us, let us know:
- Any photos you have, taken from the ground or a window
- Why you want a survey: buying, a leak, a storm or new work
- The type of building and roof, such as pitched or flat
- Anything about access we should know
To book a survey, ring 07833 053749 or use the contact form and tell us the address and what’s prompted the survey. We’ll confirm the price before booking.
Should I look at the roof myself first?
After heavy rain, check ceilings and the tops of walls for new stains. Photograph them and note the date, as it helps a surveyor trace the cause.
Watch the gutters in a downpour, from a window or the ground. Overflowing water can be a sign of a blockage or a gutter that has dropped.
Honest limits
Without opening up the roof, some things stay hidden, so a survey has limits:
- Carrying out the repair work
- The extent of water in the insulation
- Roofs whose membrane or build-up is not suitable
If you’re not sure which survey you need, ring 07833 053749 or send us an email and we will give you a straight answer before you book. What our survey covers.
What we look at
- Flat roof membranes
- Single-ply roofs
- Green roofs
- Roof terraces and balconies
- Liquid-applied waterproofing
- Commercial flat roofs
Common questions in Dartford
Does a conservation area affect roof work in Dartford?
Check Historic England’s online list first, then ask the council about conservation areas and any Article 4 direction. The answer matters most when a change of material is on the cards.
Is Dartford in the area you cover?
Yes. We survey roofs across London and South East England, and Dartford is part of that. Just phone 07833 053749 or use the contact form and let us know about the property, and we’ll talk through which survey suits.
Do you climb onto every roof?
Only if it is safe. We inspect everything that’s safely in view: from ground level, from windows, from inside the roof space, from the roof where it’s safe and by drone where it applies. The report says if anything couldn’t be seen.
Does someone need to be in?
Not always. An outside-only look can be arranged beforehand, but the loft and any rooms with damp need someone to let us in.
What happens after the survey?
The report comes by email, and you decide the next step: use it with a seller, an insurer, a roofer or a managing agent.
How fast do I get the report?
Basic reports arrive within 48 hours, Standard reports in 24–48 hours and Premium reports on the same day. All of them come by email, ready to forward.
Do you look in the loft space?
Where it is relevant to the survey and there is safe access, yes. A clear path to the hatch helps.
Towns and villages near Dartford
More services for Dartford
When to book a survey in Dartford
New membranes can have defects from installation. Testing before the roof is covered or handed over helps find them.
Things that often lead to a survey include:
- Leaks that return after repairs
- Stains far from any visible defect
- Damage from equipment installers
- Failed seams and laps
Anyone responsible for a site like Dartford Primary Academy will know that a large flat roof with a good many outlets and rooflights has many places where a membrane can fail.
Questions to ask before booking
- When you’ll get the report
- How long they’ve been surveying roofs
- What the survey will not cover
- Whether VAT is added on top