Hertfordshire · London and the South East
Electronic Leak Detection in Lower Sheering
Wondering about the flat roof membrane at a property in Lower Sheering? We carry out electronic leak detection in Lower Sheering and across Hertfordshire.
- Breaches around outlets and penetrations
- Repairs that haven’t stopped the leak
- Leaks under green or ballasted roofs
Signs you need electronic leak detection in Lower Sheering
New membranes can have defects from installation. Testing before the roof is covered or handed over helps find them.
Problems we come across often include:
- Breaches hidden under paving or planting
- Patched roofs that still leak
- Stains far from any visible defect
- Failed seams and laps
If you look after a building such as Fawbert and Barnard Infants' School, large flat roofs, common on schools and other public buildings, need their outlets, upstands and coverings checked regularly.
Choosing a roof surveyor
- Their report turnaround times
- What the survey will not cover
- What experience they bring
- Is VAT included in the price?
Electronic leak detection for homes and businesses in Lower Sheering
There are different ELD methods. Low-voltage methods usually need a wet roof surface and high-voltage methods need the membrane dry and exposed. The right method depends on the membrane and the build-up of the roof, and we’ll explain our choice. We’ll say if your roof doesn’t suit either method at the outset. We survey flat roof membranes, green roofs and roof terraces and balconies, and common reasons people get in touch are failed seams and laps and breaches around outlets and penetrations.
In a small place like Lower Sheering, a flat roof can stand in the open, 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.
Findings are set out part by part, from the coverings down to the gutters, each with a short note and a photograph. You will see the good as well as the bad.
- Place
- Lower Sheering (CM21, CM22)
- Wider area
- Hertfordshire
- Price
- Quoted for your roof
- Your report
- Emailed report with photos and recommendations
- Appointments
- Monday to Sunday, daytime
- Cover
- Professional indemnity and public liability
- Phone
- 07833 053749
- Updated
- 27 October 2026
What we do, step by step
It’s useful to start with what’s prompted the survey: buying, a leak, storm damage, new work or just wanting to know where things stand. That way we can focus on what matters to you. Most visits take a time that depends on the size of the roof and how it’s built, which we’ll explain when we quote. Older roofs in small places like Lower Sheering can have low, tight loft spaces, so it’s useful to know whether there is a loft hatch and how easy it is to reach. Only areas that can be reached safely are inspected.
- We ask about the roof, its age, its membrane and where leaks appear inside.
- We check that the membrane and build-up suit electronic leak detection.
- The method depends on the membrane and what sits above and below it.
- Testing runs across the roof to locate breaches in the membrane.
- The breaches are recorded with photographs in a report for your roofer.
Before we arrive
- Let us know where we can park nearby
- If the roof is shared, arrange access with whoever manages the building
- If you are buying, check with the agent that we can get in
Arrange a survey
Booking is simple: just call 07833 053749 or use the contact form, let us know about the property and we will recommend the right survey. We confirm the price before anything is booked.
Related advice
Your questions about electronic leak detection in Lower Sheering
Is my home in Lower Sheering listed or in a conservation area?
Historic England’s list shows listed buildings, and the local council can tell you about conservation areas. Listed building consent is needed for changes that affect a listed building’s special interest, and conservation areas can limit changes of roofing material.
Is Lower Sheering in the area you cover?
Yes. We work right across London and the South East, and Lower Sheering is part of that. Just ring 07833 053749 or send us an email and let us know about the property, and we’ll talk through which survey suits.
Is this a RICS survey?
No. It’s a specialist roof survey, not a RICS Level 2 or Level 3 building survey. It focuses on the roof and can sit alongside a RICS survey.
Does the weather affect the survey?
It can, depending on the survey. Drone flights need calm, dry weather, and thermal imaging works best after a sunny day, with a dry roof and little wind. If the conditions aren’t right, we’ll talk to you about another date.
Can you tell me if my roof has asbestos?
No. Our report may flag materials that could contain asbestos, but confirming it is a job for a specialist asbestos surveyor. It may be present in buildings built or refurbished before 2000.
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 climb onto every roof?
Only when it is safe. Safe viewpoints, the roof space and a drone where it applies cover most of what’s needed, and the report notes anything we couldn’t see.
Towns and villages near Lower Sheering
More services for Lower Sheering
What electronic leak detection doesn’t cover
A survey is a proper look at the flat roof membrane, but it can’t do everything. The main limits are:
- Build-ups without a suitable layer below
- Fixing the holes we find
- Moisture spread under the membrane
If you’re not sure which survey you need, ring 07833 053749 or drop us an email and we’ll give you a straight answer. What a survey covers and does not.
What we check
- Roof terraces and balconies
- Flat roof membranes
- Liquid-applied waterproofing
- Commercial flat roofs
- Green roofs
- Single-ply roofs
Rented homes, blocks and businesses
Landlords, agents and building managers in Lower Sheering and across Hertfordshire can book any of our surveys. To discuss a property or a block, call 07833 053749 or email us.
A roof problem in a let property affects your tenants as well as the building. A survey shows what needs attention, so you can plan the work around your tenants.
Before and after the survey
These tips come from what we see on roofs every week:
- Tell us about the membrane and build-up if you know it
- Get leaks traced quickly
- Keep a note of leaks after rain
- Consider ELD before paving or planting goes on
Keep the report with the roof’s records. It is a dated record of the membrane’s condition.
Act on leaks quickly. Water under a membrane can spread.
Flat roofs in Lower Sheering
In this part of the South East, older roofs are mostly slate or clay tile and many newer ones concrete tile. Next to the main roofs there’s normally a flat roof somewhere, whether on an extension, a garage or a commercial unit. About 4.2 miles north-east lies Barrington Hall, a reminder of how long the area around Lower Sheering has been built on. 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.
For landlords with property near Sawbridgeworth station, a flat roof over a rented flat is easy to forget until the tenant reports a leak. Take an older house close to Parish Church of Great St Mary's: flat-roofed rear additions and dormers added over the years are worth checking.
Lower Sheering is about 3 miles north-east of Harlow, in Hertfordshire. If you are in Lower Sheering, booking works exactly as it does anywhere else: a call or an email, a price, then a date. Lower Sheering is one of the towns and villages in Hertfordshire we cover. Our Chelmsford page covers surveys nearby.
Electronic leak detection in CM21 and CM22 are booked the same way as anywhere else. Local streets include Back Lane, Vantorts Road and Forebury Avenue. Close by, we survey roofs in Sawbridgeworth (1 mile west), Sheering (1 mile east), High Wych (2 miles west), Gaston Green (2 miles north) and Spellbrook (2 miles north). Within a short drive, we also cover Bishop's Stortford (4 miles north), Welwyn Garden City (15 miles west), Hoddesdon (8 miles south-west), Cheshunt (11 miles south-west), Hertford (10 miles west) and Ware (8 miles west).
Landmarks near Lower Sheering
Around Lower Sheering, our work takes us to homes and buildings near Leventhorpe, Gibberd Garden and King William IV Public House and the streets around them. Lower Sheering has its own railway station: Sawbridgeworth station. Other landmarks nearby include Harlow Mill (1.9 miles south-west) and Mark Hall Cycle Museum (2.6 miles south-west). For a walk, there is Portingbury Hills and Sawbridgeworth Marsh.
Can I check my roof myself?
Look up at the roof after a storm, from the ground: 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.
Watch the gutters in a downpour, from a window or the ground. Water spilling over the edge can point to a blockage or a sagging run.