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Hertfordshire · London and the South East

Electronic leak detection in Brent Pelham, Hertfordshire

Find out the condition of the flat roof membrane at your property in Brent Pelham from an independent roof surveyor. Visits run on weekdays and weekends, in the daytime.

  • Punctures from foot traffic or tools
  • Repairs that haven’t stopped the leak
  • New membranes needing a check before handover

Electronic leak detection in Brent Pelham

Electronic leak detection in Brent Pelham

We carry out electronic leak detection on flat roofs in Brent Pelham and across London and South East England. A visit normally takes more time on a big roof than a small one, and the build-up of the roof makes a difference too. Every roof is quoted on its size and build-up. The results come in a written report with photos. We survey commercial flat roofs, flat roof membranes and green roofs, and the problems we’re asked to look at most are gaps at membrane joints and leaks through a flat roof with no obvious cause.

Some older homes in villages like Brent Pelham are listed or in a conservation area, which can shape what a new flat roof may look like. Check with the council before planning any change of material. Knowing the roof’s condition is the starting point. Changes that affect a listed building’s special interest need listed building consent.

You can share the report with anyone who needs it: your solicitor, the seller, your insurer, a roofer or the building’s managing agent, whichever applies.

Illustration of a flat roof grid with a leak pinpointed by concentric circles
Where
Brent Pelham (SG9)
Region
Hertfordshire
Prices
Quoted for your roof
Report
A written report with photos, by email
When we survey
Weekdays, Saturdays and Sundays
Cover
Professional indemnity and public liability
Telephone
07833 053749
Updated
27 October 2026

When you need someone else

Before booking, it’s worth knowing what a survey won’t do:

  • How wet the insulation is
  • Sections we cannot safely access
  • Roofs whose membrane or build-up isn’t suitable

If in doubt, ring 07833 053749 or send us an email and we’ll recommend the right survey before you book. What a survey covers and doesn’t.

Roof types and parts we check

  • Liquid-applied waterproofing
  • Single-ply roofs
  • Flat roof membranes
  • Green roofs
  • Commercial flat roofs
  • Roof terraces and balconies

Do you need electronic leak detection in Brent Pelham?

Seams are a common weak point in flat roof waterproofing. Small openings at laps can leak for months before it shows.

Here are some of the things we see often:

  • A flat roof leak that cannot be traced
  • Waterproofing to test before it’s covered
  • Leaking laps in the waterproofing
  • Leaks under green or ballasted roofs

If you live in an older home near Church of St Mary, any flat roof added at the back or on a dormer is likely to be far younger, and less durable, than the main roof.

What to check before booking

  • If they fly a drone, whether they hold a CAA Flyer ID and Operator ID
  • Which limits apply to the survey
  • Whether the loft is part of the inspection
  • Whether the price includes VAT

What a good roof survey covers

What happens if roof problems are left?

Repeated call-outs for the same leak add up. A clear record of where the breaches are helps break that cycle. In a small place like Brent Pelham, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.

Bigger, taller and commercial roofs take more time to survey, so they’re priced to match. You’ll know the figure before booking.

What you get with us

  • Visits on any day of the week
  • Insured for professional indemnity and public liability
  • Two decades and more of roof surveys
  • Customer satisfaction of 98%

Take a look at what a roof survey costs and our case studies.

FAQs for Brent Pelham

Is Brent Pelham in the area you cover?

Yes, Brent Pelham is one of the places we work. The survey and report are the same in Brent Pelham as anywhere else, and visits run on weekdays and weekends.

Does a conservation area affect roof work in Brent Pelham?

The council and Historic England’s list are the places to check. It is worth checking before planning roof work, as both can affect what’s allowed.

Is my roof suitable for ELD?

Not every roof is suitable. Certain membranes are conductive, and some build-ups lack a suitable layer below. We’ll tell you if yours isn’t suitable before testing.

What does electronic leak detection do?

ELD passes a small electrical current across the roof to locate holes in the membrane. A breach lets the current through, which shows us where the hole is.

Does ELD include fixing the breach?

No, the test finds the breaches and your roofer repairs them. The report gives your roofer the locations.

How much does electronic leak detection cost?

We quote for each roof individually. Let us know about the roof and where it leaks, and ring 07833 053749 or use the contact form for a quote.

How long will testing take?

It depends on the size of the roof and its build-up. We will give you an idea when we quote.

How it works

After the inspection, everything we found is written up as a photo-illustrated written report, sent to you by email. 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. In a small place like Brent Pelham, access is normally the main thing to plan. Mention any outbuildings, barns or garages you want included, and anything about the roof you already know. Visits can be on weekdays, Saturdays or Sundays.

  1. First, you let us know about the roof build-up and where water is showing.
  2. We check that the membrane and build-up suit electronic leak detection.
  3. We pick the low-voltage or high-voltage method that suits the roof.
  4. Testing runs across the roof to locate breaches in the membrane.
  5. We send a report with photos of each breach so your roofer can repair it.

Getting ready for the survey

  • Make sure we can get to the back of the property
  • If you are buying, let the agent know when we’re coming
  • For a flat or shared roof, check access with the freeholder or managing agent

Booking a survey

Photos help, if you have them. Take them safely from the ground or a window, and please don’t climb up for a closer look. To send them or to book, phone 07833 053749 or drop us an email.

Book your survey

Related advice

Different roofs, different checks

Green and ballasted roofs

Roofs with planting or ballast hide the membrane. Some methods can work through these layers but it depends on the layers.

EPDM rubber roofs

Whether an EPDM roof can be tested depends on the membrane and build-up. We check this first.

What you can safely check yourself

Keep a simple record: when leaks happen, ground-level photos and any past roof work. Send it with your enquiry.

After strong wind, take a look from the pavement or garden: pieces of tile or slate on the ground, a gap in the ridge or a lifted flashing are all worth noting. Do not go up yourself.

Electronic leak detection around Brent Pelham

Listing and conservation areas can both shape what roof work is allowed on an older home. Your council and Historic England’s list will tell you where you stand, before anyone quotes for re-roofing. Across the South East, older homes tend to have slate or clay tiles, and many later ones concrete tiles. Mixed in with those pitched roofs are plenty of flat ones, over rear extensions, dormers, garages and shops.

In and around Brent Pelham, as anywhere, a roof is easiest to deal with when its problems are found early.

Brent Pelham is about 7 miles north-west of Bishop's Stortford, in Hertfordshire. Brent Pelham gets the same service as everywhere else we work: a careful inspection, photographs and a written report. Our Hertfordshire coverage includes Brent Pelham. For surveys nearby, see our Chelmsford page.

Postcode districts we cover here for electronic leak detection: SG9. We cover properties on Pump Hill and The Causeway and the roads around them. Main roads around Brent Pelham include the B1038, so getting to you is simple. Neighbouring places we cover for electronic leak detection include Furneux Pelham (2 miles south), Great Hormead (2 miles west), Daw's End (2 miles north-west), Anstey (2 miles north-west) and Lower Green (2 miles north). Within a short drive, we also cover Stevenage (12 miles west), Bishop's Stortford (7 miles south-east), Hitchin (15 miles west), Hoddesdon (15 miles south), Hertford (13 miles south-west) and Letchworth (13 miles west).

Around Brent Pelham

We work in homes and buildings around The Black Horse Public House, among other places. Nearby you will also find Anstey Hales Farm (2 miles north-west).

Map of Brent Pelham © OpenStreetMap contributors
20+ yearsRoof survey experience
5,000+ surveys98% customer satisfaction
Drones and thermal imagingCAA-registered drone operator
Fully insuredProfessional indemnity and public liability
Reports from £150Prices include VAT