Surrey · London and the South East
Electronic leak detection in Old Malden, Surrey
Independent electronic leak detection in Old Malden. We’ve completed more than 5,000 surveys across London and the South East.
- Leaks showing away from the breach
- Breaches hidden under paving or planting
- Holes around roof penetrations
Do you need electronic leak detection in Old Malden?
Seams are a common weak point in flat roof waterproofing. Small openings at laps can leak long before anyone notices.
Here are some of the things we see often:
- Damage from equipment installers
- Damp inside with no sign on the roof
- Leaks through a covered membrane
- New roofs to check before paving or planting
Landlords with a home close to Tolworth station may find that flat roofs on let property tend to be checked only when they fail, which is the costly way round.
What to check before booking
- Their report turnaround times
- Which parts of the roof they’ll actually see
- Their track record with similar roofs
- Are they insured for the work?
About our electronic leak detection in Old Malden
A leak in a flat roof frequently shows up a long way from where the water gets in. So the stain inside rarely sits under the hole. Electronic leak detection tests the membrane itself and locates the breach. We test and report, and the repair is for your roofer. On suitable roofs, it replaces guesswork with a located breach. We then send you the results in a written report. If you’ve noticed breaches hidden under paving or planting and repairs that haven’t stopped the leak, a survey will tell you what’s going on.
In smaller places like Old Malden, flat roofs are mostly on extensions, garages, porches and dormers. They’re small, but a leak over a kitchen extension can do a lot of harm. What it’s covered in, and how well it was laid, decides what it needs, from felt and asphalt to EPDM rubber and GRP. Ponding, splits and lifting edges are the signs to look for from a window.
Every survey ends with a written report, with photos, sent by email. It sets out the condition of the flat roof membrane, any defects and our written recommendations.
- Where
- Old Malden (KT19, KT4, KT5)
- Wider area
- Surrey
- Prices
- Quoted for your roof
- Your report
- Written, with photos, emailed to you
- Appointments
- Weekdays and weekends
- Cover
- PI and public liability insurance
- Call
- 07833 053749
- Last updated
- 27 October 2026
Different roofs, different checks
EPDM rubber roofs
ELD on EPDM depends on the product and the layers. We check this first.
Single-ply membranes
Many offices and units have single-ply roofs. Laps and fixings are where holes often appear.
Towns and villages near Old Malden
More services for Old Malden
The survey, step by step
Safety comes first on every visit. Everything that can be seen safely is inspected, and anything we cannot see is noted in the report. The survey usually takes a time that depends on the size of the roof and how it’s built, which we’ll explain when we quote. Being in a smaller place like Old Malden does not change how the visit works: outside, inside and from any safe vantage point, in that order. It helps to show us anything you’ve already noticed.
- You tell us about the roof and where water is showing.
- We check whether the membrane and build-up suit ELD.
- We choose a low-voltage or high-voltage method to match the roof.
- We test the roof and locate any breaches.
- You get a report with photos of each breach.
Before the survey
- Tell us about parking before the day
- Make a note of anything you’d like us to look at
- Buyers: confirm access with the estate agent or seller
Booking a survey
Every survey is priced before it is booked, so you know where you stand. We quote electronic leak detection for each roof, as the method and time depend on the roof. To book, phone 07833 053749 or send us an email.
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Landlords, agents and block managers in Old Malden
For a freeholder or residents’ company, a roof report is a sound basis for a maintenance plan, with the most urgent items set out first.
Letting agents and landlords in Old Malden book surveys as well as householders. The report gives you a dated record of the flat roof membrane, with photos, useful for planning maintenance.
Questions from Old Malden
Is Old Malden in the area you cover?
Yes, Old Malden is within the area we cover. We work right across London and the South East. Just call 07833 053749 or send us an email and let us know about the property.
Will you come out to Old Malden?
We do. Villages and rural addresses get the same survey as a town house.
How experienced are you?
We have more than 20 years’ experience and have completed over 5,000 surveys.
How long does electronic leak detection take?
It depends on the size of the roof and its build-up. You will know roughly how long before we start.
Do I have to be there for the survey?
It depends on what we need to see. Inside the building and in the loft, we need someone to let us in; we will agree the details as you book.
How much does electronic leak detection cost?
We quote for each roof individually. Let us know about the roof and where it leaks, and phone 07833 053749 or use the contact form for a quote.
Are you structural engineers?
No. We point out what can be seen, such as sagging or deflection, but we do not carry out calculations or give an engineer’s opinion. If we think you need an engineer, the report says so.
When you need someone else
Our survey is not a RICS Level 2 or Level 3 survey, a structural engineer’s report or an asbestos survey. It also has these limits:
- Roofs whose membrane or build-up isn’t suitable
- Sections we cannot safely access
- Repairing the breaches (that is for your roofer)
If you are not sure which survey you need, call 07833 053749 or drop us an email and we will give you a straight answer. What a survey covers and doesn’t.
What this survey covers
- Flat roof membranes
- Green roofs
- Roof terraces and balconies
- Single-ply roofs
- Commercial flat roofs
- Liquid-applied waterproofing
Practical tips
A survey works best with a little help from you, before and after. Some tips:
- Share any drawings of the roof
- Get leaks traced quickly
- Check new waterproofing before handover
- Clear flat roof outlets regularly
Wet insulation may need attention after a leak. That is something to discuss with your roofer, and moisture readings can help.
Consider testing a new membrane before it’s covered. It’s easier to find holes before more layers are added.
Local flat roofs in Old Malden
Historic houses such as Fitznells Manor, about 1.8 miles south-east, show how far back building in the area around Old Malden goes. Older homes in the wider area often have features worth a closer look, like lead valleys, tall stacks and roofs that have been patched over the years, and any change of roofing material on a listed home needs checking with the council first. Many older homes in Surrey have handmade clay tiles and tile-hung upper walls. Some old buildings in Surrey and Sussex have Horsham stone slab roofs. Flat roofs fill the gaps in between, on extensions, garages, dormers and business premises.
If you live in an older home near Parish Church of St Mary the Virgin, the joins between later flat roofs and the old walls are where problems normally start. If you look after a shop, office or commercial unit, for example near Bentall Centre, the flat roofs over shops and commercial units are worth checking before a leak, not after.
Old Malden is about 2 miles north-west of Ewell, in Surrey. Surveys in Old Malden work the same way as everywhere we cover: a careful inspection, photos and a written report. Old Malden is one of the towns and villages in Surrey we cover for electronic leak detection. You can also see our page for London.
Every address in KT19, KT4 and KT5 is within our area for electronic leak detection, from the main roads to the quietest streets. That includes homes and businesses on Curtis Road, Rowden Road and Grafton Road. We also cover the places around Old Malden: Worcester Park (1 mile east), Tolworth (1 mile north-west), Stoneleigh (1 mile south-east), Berrylands (1 mile north-west) and Chessington (2 miles south-west). Larger places within reach include Woking (14 miles west), Epsom (3 miles south), Horley (14 miles south), Redhill (10 miles south-east), Egham (13 miles west) and Reigate (10 miles south).
What’s near Old Malden
Around Old Malden, our work takes us to homes and buildings near Richard Challoner School, The Plough Inn Public House and Hogsmill LNR, among other places. The closest station to Old Malden is Tolworth station, about 0.5 miles west. Well-known places in the area include Bentall Centre (3 miles north-west) and Tolworth Hospital (0.9 miles west). For a walk, there’s The Lake and Kingston Hill Road area.