Greater London · London and the South East
Electronic Leak Detection in Aldgate
Electronic leak detection in Aldgate, with over 20 years’ experience behind it. Every survey ends with a written report and photographs.
- Leaks at pipes, outlets or fixings
- Leaks that return after repairs
- Holes left by work on the roof
Electronic leak detection for homes and businesses in Aldgate
ELD can be carried out in more than one way. Low-voltage testing is typically done with the surface wet, while high-voltage testing needs a dry, exposed membrane. The right method depends on the membrane and the build-up of the roof and we explain which we will use. If neither method suits your roof, we’ll tell you at the outset. We survey roof terraces and balconies, commercial flat roofs and liquid-applied waterproofing, and the problems we are asked to look at most are new membranes needing a check before handover and holes left by work on the roof.
On a London roof terrace or a flat roof over a back addition, water frequently runs under the covering before it shows. Upstands against parapets, outlets and the edge where flat meets pitched are common entry points. In a block or conversion in Aldgate, the flat roof is frequently a shared part of the building.
The report is yours to share with whoever needs it: a seller or estate agent, an insurer, a roofer, a builder or a managing agent, whichever applies.
- Place
- Aldgate (E1, EC2A, SE1)
- Wider area
- Greater London
- Price
- Quoted for your roof
- Report
- Written, with photos, emailed to you
- Survey days
- Weekdays and weekends
- Cover
- PI and public liability insurance
- Phone
- 07833 053749
- Page updated
- 27 October 2026
Before and after the survey
Most of what helps is simple and safe from ground level. Our suggestions:
- Check trades protect the waterproofing
- Keep outlets clear of debris
- Get leaks traced quickly
- Test new membranes before covering them
After your roofer repairs the breaches, a retest can confirm them if the build-up allows.
Clear flat roof outlets regularly. Standing water puts more pressure on any weak point.
Can I check my roof myself?
Your own check is a good start, but it isn’t a survey. You will not see flashings, valleys or the backs of chimneys properly from the ground.
Look up at the roof after a storm, from ground level: pieces of tile or slate on the ground, a gap in the ridge or a lifted flashing are all worth noting. Don’t go up yourself.
Leave it or get it looked at?
Testing a new membrane before it is covered is easier than tracing a leak later. Covered roofs are harder to test. In Aldgate, as in much of London, water from a roof defect can reach a neighbour’s home as easily as yours: failed flashings and blocked valley gutters can send water into more than one home. Finding it early keeps the work smaller.
Larger roofs, taller buildings and commercial roofs take longer, so the price reflects that. You will know the figure before booking.
Why book us in Aldgate
- Covered by professional indemnity and public liability insurance
- Weekday and weekend surveys
- Thermal imaging and drone inspection where they help
- An independent view of the roof
Also near Aldgate
What else we do in Aldgate
The survey, step by step
You don’t need to do much on the day. Point out anything you’ve noticed, like stains, drips or loose pieces, and we will get on with the inspection. A typical survey takes longer on a large roof than a small one, and the build-up of the roof makes a difference too. Many London properties are flats or terraces with no side access, so the back of the roof is frequently seen from upstairs windows, from inside or, where a flight is allowed, from the air. Mention any building rules, key holders or managing agents when booking.
- We ask about the roof, its age, its membrane and where leaks appear inside.
- We check that the membrane and build-up suit electronic leak detection.
- The testing method is chosen to suit the membrane and build-up.
- Testing runs across the roof to locate breaches in the membrane.
- The breaches are recorded with photos in a report for your roofer.
Before the survey
- Have any questions written down, so nothing gets missed
- Leave side gates unlocked
- Clear the way to the loft hatch
Getting a price
If you have photos of the roof, send them over. Pictures from the ground or a window are fine, and please do not climb up for a closer look. To send them or to book, call 07833 053749 or use the contact form.
Read more
How we price electronic leak detection
Prices always include VAT. The things that change the price are:
- Whether thermal imaging or a drone is needed
- House, block, shop or office
- Chimneys, valleys, parapets and other details
- Building height and the viewpoints available
To find out what your survey will cost, phone 07833 053749 or use the contact form with the address and some details. The price is agreed before a date is set.
What we need to know
Before you get in touch, it’s useful to have:
- When you need the report by
- Pictures of the roof from a safe spot, if you have them
- Whether there’s a loft hatch, a shared roof or tricky access
- What made you get in touch
You can call us seven days a week. To book or ask a question, phone 07833 053749 or send us an email.
Electronic leak detection around Aldgate
Welsh slate on Victorian and Edwardian terraces is a familiar sight across inner London. From the street you may see only a parapet, with a butterfly roof and a valley gutter behind it draining to the back. Lead flashings, party-wall upstands and shared chimney stacks are typical of these houses, if yours is one of them. Alongside them, flat-roofed extensions, dormers, garages and commercial units are common almost everywhere. Within a mile and a half or so of Aldgate there are several hotels, and like offices and blocks, hotels often sit under flat roofs. For hotels and other commercial buildings, finding the cause of a flat roof leak quickly keeps rooms in use.
If you live in an older home near St James Duke's Place, flat-roofed rear additions and dormers added over the years are worth checking. Take a building like The Aldgate School: a large flat roof with lots of outlets and rooflights has many places where a membrane can fail. If you run a business near Gabriel's Wharf, a flat roof over a business is out of sight and out of mind until it leaks.
Aldgate is about 1 mile north-east of London, in Greater London. We carry out electronic leak detection in Aldgate for houses, flats, blocks and commercial buildings, with a written report and photographs every time. Our area takes in places right across Greater London, from the larger towns to small villages.
We cover every part of E1, EC2A and SE1 for electronic leak detection and the streets around it. We cover properties on Bush Lane, Swan Lane and Mark Lane. With the A3 and A10 close by, Aldgate is simple for us to get to. Other places close to Aldgate include Spitalfields (1 mile north-east), Bishopsgate (1 mile north-west), Tower Hill (1 mile south), Whitechapel (1 mile north-east) and City of London (1 mile west). Further out, we also cover City of Westminster (3 miles west), Marylebone (3 miles west), Kensington (5 miles west), Walthamstow (6 miles north-east), Hampstead (5 miles north-west) and Ruislip (15 miles west).
Local landmarks in Aldgate
Around Aldgate, our work takes us to homes and buildings near Bishopsgate Institute Special Collections and Archives, Fund Academy and East India Arms. You will also find London Enterprise Academy (0.6 miles east), St Mary-at-Hill (within half a mile south-west) and Finsbury Circus (0.5 miles north-west). There’s a railway station in Aldgate itself: London Fenchurch Street station. Well-known places in the area include Gabriel's Wharf (1.4 miles west) and Tower of London (within half a mile south). Open spaces near Aldgate include St. James's Park Lake and Lavender Pond.
Common questions in Aldgate
Do you look at commercial flat roofs near Aldgate, such as hotels?
Yes. As well as homes, we look at flat roofs on offices, hotels, blocks of flats and commercial units. Larger commercial roofs are quoted for the building.
Is my home in Aldgate listed or in a conservation area?
For listing, use Historic England’s list; for conservation areas, ask the council. The answer matters most when a change of material is on the cards.
Do I need to be at home?
If the survey includes the loft or the inside of the building, someone needs to let us in. We will talk about access when you book.
What insurance do you have?
Our surveys are covered by professional indemnity and public liability insurance. If you need details for a managing agent or a building owner, just ask.
What happens after the survey?
We email you the written report with photographs and recommendations. You can use it to talk to a seller, an insurer, a roofer or a managing agent, whichever applies.
Can you survey at the weekend?
Surveys can be booked for any day of the week: Monday to Friday, Saturdays and Sundays. Tell us which days suit you when you book.
Is this a RICS survey?
No. We’re experienced roof surveyors, and our survey covers the roof rather than the whole building. For the rest of the building, a RICS home survey is a separate job.
Landlord and commercial surveys in Aldgate
Shared roofs need a little more planning: access has to be agreed with whoever owns or manages the building. Mention it when you get in touch and we will plan the visit with that in mind.
With a portfolio of properties, you can book surveys for several addresses. To discuss a number of properties, ring 07833 053749 or send us an email with the addresses.