Surrey · London and the South East
Electronic leak detection in Cobham, Surrey
Find out the condition of the flat roof membrane at your property in Cobham from an independent roof surveyor. We visit on weekdays and at weekends.
- Leaks through a flat roof with no obvious cause
- Breaches hidden under paving or planting
- Waterproofing to test before it is covered
Flat roofs in Cobham
In Surrey, older roofs are often handmade clay tile, with tile-hanging on many upper walls. Horsham stone slab roofs survive on some old buildings in Surrey. Alongside them, flat-roofed extensions, dormers, garages and commercial units are common almost everywhere. With The Homewood about 1.2 miles north, Cobham sits in an area with a long building history. Period homes nearby can have lead valleys, tall chimneys and a patchwork of past repairs, and any change of roofing material on a listed home needs checking with the council first.
If you look after a building like St Andrew's CofE Primary School, a large flat roof with plenty of outlets and rooflights has many places where a membrane can fail. If you live in an older home near Church of St Andrew, the joins between later flat roofs and the old walls are where problems typically start.
Cobham is about 6 miles west of Epsom, in Surrey. Roofs in Cobham get the same thorough look as anywhere else in Surrey. We cover towns and villages across Surrey, large and small. You can also see our page for Guildford.
Surveys in KT11 work the same way as everywhere else we cover. Streets in the area include High Street, Summerhays and Fairfield Park, and we cover them all. Neighbouring places we cover for electronic leak detection include Stoke D'Abernon (1 mile south-east), Oxshott (2 miles east), West End (2 miles north), Pachesham Park (3 miles east) and Esher (3 miles north-east). Larger places within reach include Guildford (10 miles south-west), Woking (8 miles west), Camberley (14 miles west), Epsom (6 miles east), Horley (15 miles south-east) and Redhill (12 miles south-east).
Local landmarks in Cobham
We work in homes and buildings around The Running Mare pub and West End Common, among other places. For rail, the closest station is Cobham & Stoke Dabernon station, about 1.1 miles south. Other landmarks nearby include Elmbridge Museum (3 miles north-east) and Chessington Castle Hill (4.9 miles east). Green spaces nearby include Jubilee Wood and Claremont Lake.
Electronic leak detection for homes and businesses in Cobham
Water can travel under a flat roof membrane before it shows inside. That makes leaks hard to trace by eye. ELD tests the waterproofing directly, to find where it has been breached. We test and report and leave the repair to your roofer. On suitable roofs, it replaces guesswork with a located breach. We then send you the results in a written report. We survey flat roof membranes, liquid-applied waterproofing and roof terraces and balconies, and people most frequently book us about leaks under green or ballasted roofs and stains far from any visible defect.
Flat roofs in smaller places like Cobham can be more exposed, particularly where nothing shelters them, where wind can catch loose edges and trims. Felt and bitumen also age in strong sun. The signs are splits, blisters and edges coming away, along with water that sits after rain. A flat roof that still holds water days after rain is also worth a closer look.
After the visit, you get a photo-illustrated written report, sent by email. It explains the condition of the flat roof membrane, the defects we found and what we recommend.
- Where
- Cobham (KT11)
- Region
- Surrey
- Prices
- Quoted for your roof
- Reports
- Emailed report with photos and recommendations
- Survey days
- Monday to Sunday, daytime
- Insured
- PI and public liability insurance
- Phone
- 07833 053749
- Last updated
- 27 October 2026
What we’re asked to look at in Cobham
Flat roof membranes can be punctured by foot traffic, dropped tools or debris. Many are tiny but water still finds them.
People typically book a survey after spotting one of these:
- Water coming in under a flat roof
- Leaks under green or ballasted roofs
- Holes left by work on the roof
- Waterproofing to test before it is covered
For landlords with property near Cobham & Stoke Dabernon station, flat roofs on let property tend to be checked only when they fail, which is the costly way round.
Questions to ask before you book
- If they fly a drone, whether they hold a CAA Flyer ID and Operator ID
- What exactly goes into their report
- How soon the report will arrive
- Whether you can ask questions once you have the report
How it works
After the inspection, everything we found is written up in a report with photos, emailed to you. As for time on site, most surveys take longer on a large roof than a small one, with the construction of the roof playing a part too. Some parts of a survey depend on the weather, so a visit to Cobham is booked with the forecast in mind: the parts that need calm, dry weather are planned around it.
- We agree the area to be tested.
- We get the roof ready for testing.
- 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.
Getting ready for the survey
- Leave side gates unlocked
- If you’re buying, check with the agent that we can get in
- Jot down any questions you want answered
Book a survey
A quick phone call is normally the easiest start: ring 07833 053749 or send us an email. The price is agreed before a date is set.
Related advice
Places near Cobham
More services for Cobham
Why get it checked now?
A visual inspection can miss tiny holes. ELD picks up breaches a visual check might miss where the roof suits it. Around Cobham, leaves and moss in gutters lead to overflowing water and damp walls, particularly where trees overhang. Dealing with the cause is simple; drying out a wall is not.
Larger roofs, taller buildings and commercial roofs take longer, so they’re priced to match. You will know the figure before booking.
What you get with us
- Covered by professional indemnity and public liability insurance
- Photos and a written report every time
- Two decades and more of roof surveys
- 5,000+ surveys completed
Your questions about electronic leak detection in Cobham
Do you cover Cobham?
Yes, Cobham is within the area we cover. We survey roofs across London and South East England. Just call 07833 053749 or drop us an email and tell us about the property, and we’ll talk through which survey suits.
Will you come out to Cobham?
Yes, Cobham is covered. We cover the whole of London and South East England, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
What’s in the survey report?
It works through the roof part by part, in writing and with photos, and ends with what we recommend. The most urgent items are made clear.
Do you survey roofs on blocks of flats?
Yes. Shared roofs just need a little more planning. Mention it when you contact us and we will plan the survey around it.
Do you use drones?
Where it helps and it’s safe, yes. Flights depend on the weather on the day and airspace rules, including flight restriction zones near airports. We hold a CAA Flyer ID and Operator ID.
Does this replace a RICS home survey?
No. We check the roof, not the whole building, and it is not a RICS Level 2 or Level 3 survey. Many buyers have both.
Do you need to get into the loft?
If the survey needs it and the loft space can be reached safely, yes. Please clear anything stored under the hatch, and if the loft cannot be reached safely, the report says so.
What we cannot see
Our survey isn’t a RICS Level 2 or Level 3 survey, a structural engineer’s report or an asbestos survey. Other limits to bear in mind:
- Repairing the breaches (that’s for your roofer)
- Areas we cannot reach or that can’t be tested
- Leaks from walls, copings or rooflights
If you’re not sure which survey you need, phone 07833 053749 or send us an email and we’ll give you a straight answer. What our survey covers.
Roofs we survey in Cobham
- Green roofs
- Single-ply roofs
- Commercial flat roofs
- Roof terraces and balconies
- Flat roof membranes
- Liquid-applied waterproofing
Should I look at the roof myself first?
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 ground level.
After strong wind, take a look from the pavement or garden: broken slates or tiles in the garden, gaps along the ridge or loose lead are signs to note. Leave anything above ground level to a survey.
What a survey costs
The price reflects the time and kit the roof needs. That comes down to:
- If the survey needs thermal imaging or a drone
- The height of the building and how the roof can safely be seen
- Extra roofs, like extensions, dormers or garages
- The size of the roof
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
Getting the details right at the start saves time. Please include:
- Photos of the roof, taken safely from the ground or a window
- Dates you are working to, such as exchange
- Where the property is, with the postcode
- Where any leaks, stains or damp patches show inside
Photos help, if you have them. Pictures from the ground or a window are fine. To get started, phone 07833 053749 or use the contact form.