Hertfordshire · London and the South East
Electronic Leak Detection in Roe Green
Wondering about the flat roof membrane at a property in Roe Green? You can book electronic leak detection in Roe Green and across Hertfordshire, with plain-English findings.
- Repairs that haven’t stopped the leak
- Leaks through a covered membrane
- Failed seams and laps
How electronic leak detection works in Roe Green
Roofs covered with paving, ballast or planting need more thought. What sits on the membrane can affect which method will work, and some may need lifting. We talk this through before we quote. Drawings or details of the roof’s layers are useful, as they show what lies beneath the surface. We’ll tell you if the roof cannot be tested. Typical surveys look at leaks under green or ballasted roofs and leaks through a flat roof with no obvious cause, on flat roof membranes, liquid-applied waterproofing and roof terraces and balconies.
Older buildings in small places like Roe Green may be listed or in a conservation area, and that can affect how an extension roof or dormer is re-covered. Check with the council before planning any change of material. Finding out what state the roof is in gives you the facts to plan with. Changes that affect a listed building’s special interest need listed building consent.
The report does not just list problems. It explains what we found, why it matters and what we recommend.
- Where
- Roe Green (SG9)
- Region
- Hertfordshire
- Cost
- Quoted for your roof
- Your report
- Emailed report with photos and recommendations
- When we survey
- Weekdays and weekends
- Cover
- PI and public liability insurance
- Call
- 07833 053749
- Updated
- 27 October 2026
What electronic leak detection looks like in Roe Green
In this part of the South East, older roofs are mostly slate or clay tile and many newer ones concrete tile, with flat-roofed extensions, dormers and garages common everywhere. Flat roofs on extensions, dormers, garages and business units are found alongside them almost everywhere. An older home may be listed, or stand in a conservation area. Historic England’s list shows listed buildings, and the council can say whether a street is in a conservation area. Re-roofing in different materials may need permission there.
If you own a rental within reach of Ashwell & Morden station, flat roofs on let property tend to be checked only when they fail, which is the costly way round. If you look after a building such as Sandon Junior Mixed and Infant School, a large flat roof with a good many outlets and rooflights has many places where a membrane can fail.
Roe Green is in Hertfordshire. We cover Roe Green and the rest of Hertfordshire, as part of our work across London and South East England. Roe Green is one of the places in Hertfordshire we cover for electronic leak detection. You can also see our page for Milton Keynes.
Here we cover the SG9 postcode area for electronic leak detection. If you’re just outside Roe Green, we cover Sandon (1 mile north-east), Green End (1 mile east), Rushden (1 mile south-west), Buckland (3 miles east) and Chipping (3 miles south-east). Within a short drive, we also cover Stevenage (7 miles south-west), Bishop's Stortford (13 miles south-east), Welwyn Garden City (14 miles south), Hitchin (8 miles west), Hertford (13 miles south) and Letchworth (6 miles west).
Near you in Roe Green
For rail, the closest station is Ashwell & Morden station, about 3.2 miles north of the centre. Nearby you will also find Clothall Castle (3.1 miles south-west). Not far away are Hawkins Wood.
FAQs for Roe Green
Do you carry out roof surveys in Roe Green?
Yes. We work right across London and the South East, and Roe Green is part of that. Just phone 07833 053749 or email us and let us know about the property.
Does a conservation area affect roof work in Roe Green?
We cannot confirm that for you, but Historic England’s list and your council can. Both listing and conservation areas can limit changes of roofing material.
Do you test for asbestos?
No. Our report may flag materials that could contain asbestos, but only a specialist asbestos surveyor can confirm it. Buildings built or refurbished before 2000 may contain it.
What does the report include?
It explains what we saw, what it means and what we’d suggest, backed by photos. It also says if any part of the roof couldn’t be seen safely.
Is it a structural engineer’s report?
No. We’re roof surveyors, not structural engineers, and it doesn’t include calculations. If we see signs that need an engineer’s opinion, we will recommend one.
What if it rains on the day?
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. We will rearrange with you if the weather isn’t right.
What do I do with the report?
You receive the written report by email, with photographs and recommendations. You can use it to talk to a seller, an insurer, a roofer or a managing agent, whichever applies.
What happens on the day
Before we start, tell us why you’ve booked: 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. The visit typically takes more time on a big roof than a small one, with the construction of the roof playing a part too. Rural addresses near Roe Green 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.
- You tell us about the roof and where water is showing.
- We check whether the membrane and build-up suit ELD.
- 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
- If it isn’t your property yet, arrange access through the agent
- Jot down any questions you want answered
Getting a price
We confirm the price for your roof before you book, so you know the cost up front. We quote electronic leak detection for each roof, as the method and time depend on the roof. To book, ring 07833 053749 or use the contact form.
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Landlord and commercial surveys in Roe Green
Roof problems in a rented home affect tenants as well as the building. A survey helps you spot issues early and plan the work.
An agent can book and manage the survey for a landlord, and the report can go to both. We agree a time with the tenant beforehand.
Common roof problems in Roe Green
A breach can be left during installation. Testing before the roof is covered or handed over helps find them.
It is worth booking a survey if you’ve seen:
- Leaks under green or ballasted roofs
- Leaks through a flat roof with no obvious cause
- Punctures from foot traffic or tools
- Patched roofs that still leak
For an older house near a landmark like Church of All Saints, later flat-roofed additions are common on older houses, and their edges and upstands often show the first signs of wear.
Choosing a roof surveyor
- Do they have a CAA Flyer ID and Operator ID for drone work?
- Will they check the loft as well as the outside?
- Which parts of the roof they’ll actually see
- What the report includes, and whether it has photos
What else we do in Roe Green
What we can’t see
We only report what can safely be seen on the day, so some things are outside what a survey can do:
- Leaks from plumbing or windows
- Areas we cannot reach or that can’t be tested
- Moisture spread under the membrane
Not sure which survey suits your roof? You can phone 07833 053749 or drop us an email and we’ll tell you before booking. The full list of what we check.
What this survey covers
- Green roofs
- Flat roof membranes
- Roof terraces and balconies
- Commercial flat roofs
- Single-ply roofs
- Liquid-applied waterproofing
Before and after the survey
A survey works best with a little help from you, before and after. Tips:
- Don’t leave water getting in
- Test new membranes before covering them
- Share any drawings of the roof
- Use boards when working on the roof
If water has been getting in, insulation under the membrane may be wet. Your roofer can advise on that and other checks can help judge it.
Ask trades working on the roof to protect the membrane when fitting equipment. Have the roof looked at after other work.
Leave it or get it looked at?
Water trapped under a membrane can soak insulation and decking. Locating it early helps limit the damage. Older cottages and farmhouses around Roe Green can have roof timbers that have been there a very long time, and water through a failed covering can rot timber if it is left.
What a survey costs comes down to the roof itself: how big it is, how high it is, the number of separate roofs and how it can be reached and seen safely. Electronic leak detection is quoted for your roof, because the method depends on the roof.
Why us?
- Drone flown under a CAA Flyer ID and Operator ID
- PI and public liability insurance
- More than 5,000 surveys completed
- Drones and thermal imaging where it applies
Read our cost guide or our case studies.