Hertfordshire · London and the South East
Electronic leak detection in High Wych, Hertfordshire
Electronic leak detection to pinpoint holes in flat roof membranes across High Wych, with drones and thermal imaging where they help. Call or email for a price.
- Leaks under green or ballasted roofs
- Breaches around outlets and penetrations
- New membranes needing a check before handover
About our electronic leak detection in High Wych
Our ELD report shows where each breach was found, with photos. Your roofer can then repair those points rather than guessing. Repair costs aren’t part of the report, so your roofer prices the work. A retest after repairs can check the work if the build-up allows. Results come in a written report with photos. If you’ve noticed stains far from any visible defect and leaks under green or ballasted roofs, a survey will tell you what’s going on, on commercial flat roofs, flat roof membranes and green roofs alike.
Flat roofs on exposed homes in small places like High Wych take more wind and rain, so edges, upstands and laps take a beating. Felt roofs, which often last around 15–20 years, normally show it first. Rubber and GRP last longer, though trims and joints still need a look. On an exposed roof, the edges tend to go first.
You can share the report with anyone who needs it: a seller or estate agent, an insurer, a roofer, a builder or a managing agent, whichever applies.
- Location
- High Wych (CM21)
- Wider area
- Hertfordshire
- Price
- Quoted for your roof
- Reports
- Emailed report with photos and recommendations
- Survey days
- Monday to Sunday, daytime
- Insured
- Professional indemnity and public liability
- Call
- 07833 053749
- Updated
- 27 October 2026
How we price electronic leak detection
We confirm the price for the job before you book. These are the things that affect it:
- The size of the roof
- How tall the building is and how easy the roof is to see
- Commercial roofs and larger buildings
- The shape of the roof and its details
Bigger, taller and commercial roofs take more time to survey, so they’re priced to match. You’ll know the figure before booking.
What to let us know when you contact us
There’s no need for technical words. It’s enough to let us know:
- Pictures from the garden or a window, if you have them
- The property’s address and postcode
- Your timetable, such as an exchange date
- Access details, such as a loft hatch or a shared roof
Every survey is priced before it is booked, so you know the cost up front. Electronic leak detection is quoted for your roof, because the method depends on the roof. To book, ring 07833 053749 or use the contact form.
Why get it checked now?
Some breaches are too small to see. ELD picks up breaches a visual check might miss, on suitable membranes. In a place like High Wych, a barn or garage roof left to fail puts whatever is inside at risk. It’s worth including them in a survey before a winter does the damage.
Every price we give includes VAT. Electronic leak detection is quoted for your roof, because the method depends on the roof. We confirm the price for your roof before booking.
Why choose Independent Roof Survey in High Wych
- Thermal imaging and drones used where they help
- Surveys seven days a week
- An independent look at the roof
- 98% of customers satisfied
Take a look at our cost guide and two real surveys.
What we look for on each type of roof
Single-ply membranes
Single-ply membranes are common on commercial and newer roofs. Seams and penetrations are typical breach points.
Green and ballasted roofs
Green roofs and ballasted roofs cover the waterproofing. Some methods can work through these layers but it depends on the layers.
Electronic leak detection around High Wych
Much Hadham Palace, about 3.9 miles north-west, is one of the historic houses in the wider area around High Wych. On older houses around here, roofs often carry the marks of earlier repairs, from replaced slates to new lead, and the council can say whether a home is in a conservation area. Older houses in the South East often have slate or clay tile roofs, while many later estates have concrete tiles. Alongside them, flat-roofed extensions, dormers, garages and commercial units are common almost everywhere.
If you live in an older home near Parish Church of St James the Great, flat-roofed rear additions and dormers added over the years are worth checking. For landlords with property near Harlow Mill station, a flat roof over a rented flat is easy to forget until the tenant reports a leak. If you look after a building such as High Wych Church of England Primary School, a large flat roof with lots of outlets and rooflights has many places where a membrane can fail.
High Wych is about 3 miles north of Harlow, in Hertfordshire. In High Wych, as across Hertfordshire, every roof gets the same careful survey. High Wych is one of the places in Hertfordshire we cover for electronic leak detection. Chelmsford is in our area too.
Here we cover the CM21 postcode area for electronic leak detection. Streets in the area include Mansfield, High Wych Lane and Broadfields. Neighbouring places we cover for electronic leak detection include Sawbridgeworth (1 mile east), Lower Sheering (2 miles east), Allen's Green (2 miles north), Spellbrook (2 miles north-east) and Sheering (3 miles east). Within a short drive, we also cover Stevenage (15 miles north-west), Bishop's Stortford (4 miles north), Welwyn Garden City (14 miles west), Hoddesdon (7 miles south-west), Cheshunt (10 miles south-west) and Hatfield (15 miles west).
Local landmarks in High Wych
Typical jobs here are in homes near The Half Moon Public House, Leventhorpe and Gibberd Garden. High Wych’s nearest station is Harlow Mill station, about 1.3 miles south of the centre. Well-known places in the area include Harlow Mill (1.3 miles south) and Princess Alexandra Hospital (3 miles south-west). For a walk, there is Sawbridgeworth Marsh.
Tips from our surveys
A few practical points come up again and again on our surveys. They’re worth knowing whatever the roof:
- Share any drawings of the roof
- Ask contractors to protect the membrane
- Check new waterproofing before handover
- Get leaks traced quickly
If we think the leak isn’t coming through the membrane, the report says so, with a suggestion of what to check next.
Clear flat roof outlets regularly. Standing water puts more pressure on any weak point.
How it works
Every visit follows the same pattern: we listen to what’s been worrying you, look at the roof from every safe viewpoint, take photos as we go and record our findings for the written report. Most visits take more time on a big roof than a small one, and the build-up of the roof makes a difference too. Rural addresses near High Wych can be hard to find from a postcode alone, so a few directions, or a note of a nearby landmark, help us arrive on time. The visit itself is the same as anywhere else.
- We start with what you know about the roof and the leak.
- The roof is assessed for suitability first.
- The test method is chosen to suit the roof.
- We test the roof and locate any breaches.
- You get a report with photos of each breach.
Preparing for the visit
- Unlock side gates and any roof access doors
- Have any questions written down, so nothing gets missed
- Mention any parking restrictions on your street
Booking a survey
To book a survey, ring 07833 053749 or email us with the address and what you’d like to know about the roof. You will know the price before anything is booked.
Advice
DIY checks: what’s safe
After heavy rain, check ceilings and the tops of walls for new stains. Photograph them and note the date, as it helps a surveyor trace the cause.
The one thing to avoid is getting up close. Roofs are fragile and slippery, and falls from height are serious. That is where a survey comes in.
Nearby places to High Wych
More services for High Wych
Common questions in High Wych
Do you cover smaller places like High Wych?
Yes, High Wych is on our map. A small place gets exactly the same survey as a big one, with the route planned beforehand.
Does a conservation area affect roof work in High Wych?
For listing, use Historic England’s list; for conservation areas, ask the council. It matters most if you’re planning to re-roof in a different material.
Do you carry professional indemnity insurance?
Every survey is covered by professional indemnity and public liability insurance, and we can provide details if a managing agent needs them.
How do I arrange electronic leak detection in High Wych?
To arrange a survey, ring 07833 053749 or use the contact form and tell us the address and what you’d like to know. We’ll confirm the price and agree a day with you.
What’s the price of ELD?
We quote electronic leak detection for each roof, as the method and time depend on the roof. Size, build-up and access all affect the price. To get a quote, phone 07833 053749 or email us.
Will you repair the leak?
No. ELD is testing only. You get the breach locations with photos for your roofer to repair.
Does ELD work under paving or planting?
In some cases. The layers on top and the build-up below decide it and parts may need to be lifted. We’ll discuss it before we quote.