Greater London · London and the South East
Pinner Electronic Leak Detection
Electronic leak detection to pinpoint holes in flat roof membranes in Pinner, carried out by an experienced roof surveyor. You get a clear written report with photos.
- Water coming in under a flat roof
- Breaches around outlets and penetrations
- Leaks under green or ballasted roofs
Should I look at the roof myself first?
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.
After heavy rain, check ceilings and the tops of walls for new stains. Take a photo and write down when you saw it.
Electronic leak detection in Pinner: what you get
Our ELD testing covers flat roofs in Pinner and the rest of London and South East England. A visit normally takes more time on a big roof than a small one, with the construction of the roof playing a part too. We quote electronic leak detection for each roof, as the method and time depend on the roof. The results come in a written report with photos. We are frequently asked to look into damp inside with no sign on the roof and damage from equipment installers, on roof terraces and balconies, single-ply roofs and green roofs.
Water getting through a flat roof in London can travel under the covering and appear some way from the hole. Upstands against parapets, outlets and the edge where flat meets pitched are common entry points. In a block or conversion in Pinner, the flat roof is often a shared part of the building.
We keep jargon out of it: if work is needed, the report says so clearly, along with how urgent it is.
- Location
- Pinner (HA5)
- Region
- Greater London
- Price
- Quoted for your roof
- Report
- Emailed report with photos and recommendations
- Survey days
- Monday to Sunday, daytime
- Insured
- PI and public liability insurance
- Call
- 07833 053749
- Updated
- 27 October 2026
What electronic leak detection does not cover
It is a careful look at the flat roof membrane, not the whole story. The main limits are:
- Water entering through details rather than the membrane
- Areas we cannot reach or that cannot be tested
- Moisture spread under the membrane
If you are not sure which survey you need, call 07833 053749 or email us and we will give you a straight answer before you book. What a survey covers and does not.
Roof types and parts we check
- Roof terraces and balconies
- Commercial flat roofs
- Flat roof membranes
- Single-ply roofs
- Liquid-applied waterproofing
- Green roofs
Prices for electronic leak detection in Pinner
Several things affect the price of a survey:
- Building height and the viewpoints available
- Extra roofs, like extensions, dormers or garages
- The use of thermal imaging or a drone
- House, block, shop or office
The cost of a survey depends on the roof: its size, its height, how many sections it has and how it can be reached and seen safely. We quote electronic leak detection for each roof, as the method and time depend on the roof.
What we need to know
These details help when you get in touch:
- Pictures from the garden or a window, if you have them
- Anything about access we should know
- The type of building and roof, such as pitched or flat
- Your timetable, like an exchange date
We confirm the exact price before you book, so you know the cost up front. We quote electronic leak detection for each roof, as the method and time depend on the roof. For a price for your roof, call 07833 053749 or email us.
Places near Pinner
Also in Pinner
Different roofs, different checks
EPDM rubber roofs
Some EPDM membranes conduct electricity which can limit electronic testing. We will say if the test will not work.
Inverted and paved roofs
If the build-up rules out ELD, we will say so.
Flat and commercial roofs around Pinner
In outer London, interwar semis with hipped, tiled roofs sit alongside older slate-roofed terraces. If your home in Pinner is one of them, bay roofs, hips and later dormers each have their own details. Flat roofs fill the gaps in between, on extensions, garages, dormers and business premises. Headstone Manor, about 1.5 miles east, is one of the historic houses in the wider area around Pinner. If you own one of the older houses, expect a mix of original materials and later repairs on the roof, and the council can say whether a home is in a conservation area.
If you live in an older home near Christian Science Church, later flat-roofed additions are common on older houses, and their edges and upstands frequently show the first signs of wear. If you let a flat or house near Hatch End station, a flat roof over a rented flat is easy to forget until the tenant reports a leak. If you look after a shop, office or commercial unit, for instance near St. George's Shopping Centre, a flat roof over a business is out of sight and out of mind until it leaks.
Pinner is about 1 mile north-east of Ruislip, in Greater London. We carry out electronic leak detection in Pinner for houses, flats, blocks and commercial buildings, with a written report and photographs every time. Pinner is one of the places in Greater London we cover for electronic leak detection. You can also see our page for London.
We cover every part of HA5 for electronic leak detection and the streets around it. Whether your property is on Love Lane, Tudor Road and Marsh Road or anywhere close by, we can survey it. We also cover the places around Pinner: Pinner Green (1 mile north-west), Eastcote (1 mile south), North Harrow (1 mile south-east), Roxbourne (1 mile south) and Rayners Lane (2 miles south-east). Within a short drive, we also cover London (14 miles south-east), City of Westminster (12 miles south-east), Marylebone (12 miles south-east), Kensington (10 miles south-east), St Pancras (13 miles east) and Shoreditch (14 miles east).
What’s near Pinner
In Pinner, that means homes and buildings near Pinner High School, Heathfield School and The Oddfellows Arms. The nearest railway station is Hatch End station, about 1.4 miles north-east. Other landmarks nearby include Northwood and Pinner Cottage Hospital (1.3 miles north-west) and St. George's Shopping Centre (2.3 miles east). For a walk, there is Horse Shoe Bay and Northala Fields.
What we do, step by step
It helps to start with what’s prompted the survey: buying, a leak, storm damage, new work or just wanting to know where things stand. It helps us focus on what matters most to you. The visit typically takes a length of time set by the size of the roof and how it’s built, which we’ll explain when we quote. Many London properties are flats or terraces with no side access, so the back of the roof is often 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.
- First, we confirm which roof areas are included.
- The surface is prepared for the chosen method.
- Testing runs across the agreed area.
- Each breach found is located and recorded.
- You receive the results to pass to your roofer.
Preparing for the visit
- Note where any stains or damp appear
- Unlock side gates and any roof access doors
- If you’re buying, check with the agent that we can get in
Arrange a survey
Photos help, if you have them. Pictures from the ground or a window are fine; never climb up to get a better view. To get started, ring 07833 053749 or drop us an email.
Advice
Landlord and commercial surveys in Pinner
Freeholders and residents’ companies use a roof report to plan and budget, putting the urgent items at the top.
If you own several properties, surveys can be booked for more than one address. To arrange surveys for several addresses, ring 07833 053749 or send us an email.
Pinner questions
Does a conservation area affect roof work in Pinner?
For listing, use Historic England’s list; for conservation areas, ask the council. It matters most if you are planning to re-roof in a different material.
Do you carry out roof surveys in Pinner?
We do. The survey and report are the same in Pinner as anywhere else.
When does the report arrive?
Report times are set by the package. Basic is within 48 hours, Standard is 24–48 hours and Premium is the same day. If you have a deadline, like an exchange date, tell us as you book.
Do you carry professional indemnity insurance?
Our surveys are covered by professional indemnity and public liability insurance. Ask if you need details for a managing agent or building owner.
Do you look in the roof space?
Usually, if there’s one and it can be reached safely. From inside, the underside of the roof often shows damp, staining or daylight that can’t be seen from outside.
Is it the same as a RICS Level 2 or Level 3 survey?
No. It’s a specialist roof survey, not a RICS Level 2 or Level 3 building survey. It focuses on the roof, so it sits alongside a building survey rather than replacing it.
Is it a structural engineer’s report?
No. We point out what can be seen, like sagging or deflection, but we don’t carry out calculations or give an engineer’s opinion. If we think you need an engineer, the report says so.