Greater London · London and the South East
Electronic leak detection in Wanstead, Greater London
Independent electronic leak detection in Wanstead. We’ve completed more than 5,000 surveys across London and South East England.
- Leaks through a flat roof with no obvious cause
- Leaks showing away from the breach
- Leaks under green or ballasted roofs
Electronic leak detection for homes and businesses in Wanstead
We carry out electronic leak detection on flat roofs in Wanstead and across London and the South East. A visit normally takes as long as needed for the roof’s area and construction, which we set out in the quote. Every roof is quoted on its size and build-up. The results come in a written report with photos. If you are worried about stains far from any visible defect and new roofs to check before paving or planting, we can find out what’s behind it, whatever the roof.
London has a lot of flat roofs: rear additions, dormers, roof terraces and the roofs of blocks and offices. They’re covered in felt, asphalt, EPDM rubber, GRP fibreglass or single-ply membranes, and each fails in its own way. In Wanstead, as anywhere in London, the right approach depends on what the roof is made of. Many older flat roofs are felt or asphalt, and many newer ones EPDM rubber or GRP.
We keep jargon out of it: if work is needed, the report says so clearly.
- Location
- Wanstead (E11, E18)
- Region
- Greater London
- Cost
- Quoted for your roof
- Your report
- A written report with photos, by email
- Survey days
- Weekdays and weekends
- Insured
- Professional indemnity and public liability
- Telephone
- 07833 053749
- Last updated
- 27 October 2026
Wanstead questions
Do you cover Wanstead?
We do. Every survey there gets the same written report with photographs, and visits run on weekdays and weekends.
Is my home in Wanstead listed or in a conservation area?
Your council is the best source, with Historic England’s list for listed buildings. A change of roofing material may need consent in either case.
Can you inspect my roof with a drone?
Yes, where it’s applicable. Our sub-250g drone is flown by a CAA-registered operator with a Flyer ID and Operator ID, and every flight depends on the airspace and the weather.
Will you walk on the roof?
Only if it is safe. We inspect what can safely be seen: from ground level, from windows and vantage points, from the loft space, from the roof itself where safe and by drone where applicable. The report says if anything couldn’t be seen.
How long will testing take?
It depends on the size of the roof and its build-up. You’ll know roughly how long before we start.
Can you survey at the weekend?
We survey on any day from Monday to Sunday, during the day. Just say which days work for you.
What happens next?
You’ll receive the report by email, and you decide the next step: use it with a seller, an insurer, a roofer or a managing agent.
What this survey cannot tell you
Our findings are based on what we can see safely on the day, so some things are outside what a survey can do:
- Leaks from plumbing or windows
- Some conductive membranes
- Repairing the breaches (that is for your roofer)
If you’re not sure which survey you need, call 07833 053749 or drop us an email and we’ll give you a straight answer before you book. The full list of what we check.
What this survey covers
- Green roofs
- Roof terraces and balconies
- Flat roof membranes
- Commercial flat roofs
- Liquid-applied waterproofing
- Single-ply roofs
What we do, step by step
Expect us to ask a few questions before we start, about the roof’s history, any leaks and past repairs. The inspection then takes as long as needed for the membrane area and the build-up, and we’ll give you a guide when quoting. In a London conversion, the way into the roof space is frequently from a communal landing or the top flat. If that applies to your building, it’s useful to agree access with the neighbours or the managing agent first. Everything else is planned around the building, not the postcode.
- We start by finding out what the roof is made of and where it leaks.
- The roof is assessed to see if electronic testing will work on it.
- The testing method is chosen to suit the membrane and build-up.
- The roof is tested and any breaches are located.
- The breaches are recorded with photographs in a report for your roofer.
Getting ready for the survey
- Show us where any leaks or stains appear
- Jot down any questions you want answered
- Keep pets in another room
Getting a price
Photos help, if you have them. Pictures from the ground or a window are fine. To send them or to book, phone 07833 053749 or email us.
Read more
Can I check my roof myself?
During heavy rain, look at the gutters from the ground or a window. Overflowing water can point to a blockage or a sagging run.
A DIY look is useful, but it is not a survey. From the ground, valleys, flashings and the backs of chimneys are frequently out of sight.
For landlords and managing agents
We also survey roofs for businesses and commercial landlords, from shops and offices to industrial units. Bigger roofs take more time, so they’re priced to suit.
Managing agents and residents’ management companies use roof surveys to plan maintenance. The report sets out what needs attention now and what can wait, which helps with budgets and planning.
Why it’s worth a survey now in Wanstead
Patching where you think the leak is often misses it. Testing shows where the membrane is actually breached. Many older London roofs have only old felt under the slates, or no underlay at all, so once the slates or flashings let water past, little stops it reaching ceilings. Left unchecked, water soaks into timber and plaster and the damage spreads.
The cost of a survey depends on the roof: its size, its height, how many sections it has and how safely it can be seen. Electronic leak detection is quoted for your roof, because the method depends on the roof.
Why choose Independent Roof Survey in Wanstead
- Visits on any day of the week
- A sub-250g drone, flown with a CAA Flyer ID and Operator ID
- Every finding written up with photos
- Two decades and more of roof surveys
Read our cost guide and what we found on two real jobs.
Nearby places to Wanstead
Other services in Wanstead
When to book a survey in Wanstead
Other trades on the roof can puncture the waterproofing. Fixings, equipment and foot traffic can leave small holes.
Problems we come across often include:
- Leaks through a flat roof with no obvious cause
- Waterproofing to test before it is covered
- Leaks that return after repairs
- Holes around roof penetrations
Shop and office owners around 17 & Central may find that outlets and upstands on commercial flat roofs are the places to check before trouble starts.
What to check before booking
- Whether you can ask questions once you have the report
- Which limits apply to the survey
- Whether any drone flown is registered with the CAA
- Is VAT included in the price?
Flat and commercial roofs around Wanstead
In outer London, interwar semis with hipped, tiled roofs sit alongside older slate-roofed terraces. Hips, bay roofs and later loft conversions are typical of those semis, if your home is one of them. Flat roofs fill the gaps in between, on extensions, garages, dormers and business premises. The wider area around Wanstead has a long history of building, with Valentines Mansion about 1.6 miles east. Older roofs in the wider area can hide decades of patch repairs, so the detail matters, and a listed home or one in a conservation area may need consent for changes of material.
The streets around a church such as Wanstead United Reformed Church are often among the oldest in a place, and if yours is one of the older homes nearby, the flat roofs on later extensions tend to wear out long before the main roof. For landlords with property near Leytonstone High Road station, a flat roof over a rented flat is easy to forget until the tenant reports a leak.
Wanstead is about 2 miles south of Woodford, in Greater London. Surveys in Wanstead work the same way as everywhere we cover: a careful inspection, photos and a written report. Our area takes in places right across Greater London. Our London page covers surveys nearby.
All of E11 and E18 is within our area for electronic leak detection, from the main roads to the quietest streets. That includes homes and businesses on High Street, Grove Park and The Avenue and the roads around them. Being close to the A1008, Wanstead is simple for us to get to. Nearby, we also carry out electronic leak detection in Snaresbrook (1 mile north-west), Redbridge (1 mile east), Bushwood Area of Leytonstone (1 mile south-west), Aldersbrook (1 mile south) and South Woodford (1 mile north). Larger places within reach include London (8 miles south-west), City of Westminster (9 miles south-west), Marylebone (9 miles south-west), Kensington (11 miles south-west), St Pancras (7 miles south-west) and Shoreditch (6 miles south-west).
Landmarks near Wanstead
Typical jobs here are in homes near Forest School, The George pub and Valentines Park and the streets around them. For rail, the closest station is Leytonstone High Road station, roughly 1.4 miles south-west of the centre. Other landmarks nearby include 17 & Central (2.3 miles west) and Redbridge Museum (2.4 miles south-east). The countryside around Wanstead includes Hollow Pond and Ainslie Wood.