Hertfordshire · London and the South East
Electronic Leak Detection in Radwell
Electronic leak detection to pinpoint holes in flat roof membranes across Radwell, using drones and thermal imaging where it applies. Get in touch for a price.
- New membranes needing a check before handover
- Holes left by work on the roof
- Water coming in under a flat roof
Honest limits
This is not a RICS building survey, a structural engineer’s report or an asbestos survey. Other limits to bear in mind:
- Leaks from walls, copings or rooflights
- Carrying out the repair work
- How wet the insulation is
If you are not sure which survey you need, phone 07833 053749 or send us an email and we’ll give you a straight answer before booking. The full list of what we check.
What this survey covers
- Single-ply roofs
- Flat roof membranes
- Roof terraces and balconies
- Commercial flat roofs
- Liquid-applied waterproofing
- Green roofs
Electronic leak detection for homes and businesses in Radwell
You get a report showing the location of each breach, with photos. Your roofer can then repair those points rather than guessing. Repair costs are not part of the report, so your roofer prices the work. A retest after repairs can check the work, where the roof still suits the method. You get a report with photographs. We survey flat roof membranes, roof terraces and balconies and green roofs, and common reasons people get in touch are new roofs to check before paving or planting and punctures from foot traffic or tools.
Flat roofs on exposed homes in small places like Radwell take more wind and rain, which is hard on edges, upstands and joins in the covering. Older felt roofs, often around 15–20 years in life, show it first. EPDM rubber and GRP coverings last longer, but their edges and joints still need checking. On an exposed roof, the edges tend to go first.
Findings are set out part by part, from the coverings down to the gutters, with a note and a photo for each point. It records what’s sound as well as what is not.
- Location
- Radwell (SG7)
- Region
- Hertfordshire
- Cost
- Quoted for your roof
- Report
- A written report with photos, by email
- When we survey
- Weekdays and weekends
- Insured
- PI and public liability insurance
- Phone
- 07833 053749
- Page updated
- 27 October 2026
Flat and commercial roofs around Radwell
Hinxworth Place, about 2.4 miles north, is one of the historic houses in the wider area around Radwell. Older roofs in the wider area can hide decades of patch repairs, so the detail matters, and the council can say whether a home is in a conservation area. Older houses in the South East frequently have slate or clay tile roofs, while many later estates have concrete tiles, and flat-roofed additions turn up almost everywhere. Flat roofs fill the gaps in between, on extensions, garages, dormers and business premises.
Landlords with a home close to Baldock station may find that a flat roof over a rented flat is easy to forget until the tenant reports a leak. If you live in an older home near Church of All Saints, the flat roofs on later extensions tend to wear out long before the main roof.
Radwell is about 2 miles north of Letchworth, in Hertfordshire. We survey roofs in Radwell and the rest of Hertfordshire. Our area takes in places right across Hertfordshire, from the larger towns to small villages. For surveys nearby, see our Milton Keynes page.
Electronic leak detection in SG7 are booked the same way as anywhere else. Local streets include Radwell Lane and The Limes. Other places close to Radwell include Stotfold (1 mile west), Stotfold Common (2 miles north-west), Fairfield (2 miles west) and Astwick (2 miles north-west). Further out, we also cover Stevenage (7 miles south), Welwyn Garden City (14 miles south), Harpenden (15 miles south-west), Hitchin (5 miles south-west), Hertford (15 miles south) and Ware (15 miles south-east).
Around Radwell
Locally, jobs take us to homes and businesses close to The Knights Templar School, Norton School and The Chequers Public House, among other places. The nearest railway station is Baldock station, about 1.2 miles south-east. A little further out are Bygrave House (2 miles east) and Fairfield Hospital (1.9 miles west). Open spaces near Radwell include Arlesey Old Moat and Glebe Meadows.
How we price electronic leak detection
Prices vary from roof to roof, for these reasons:
- The number of roofs, including extensions and garages
- House, block, shop or office
- How tall the building is and how easy the roof is to see
- Any need for thermal images or a drone flight
Every price we give includes VAT. Electronic leak detection is quoted for your roof, because the method depends on the roof. You will know the price for the job before you book.
What to tell us when you contact us
If you can, have these to hand when you contact us:
- What made you get in touch
- Where the property is, with the postcode
- Anything about access we should know
- Dates you are working to, such as exchange
If you’re buying, it’s useful to book soon after your offer is accepted, so there is time to use the report before exchange. For any other survey, just phone 07833 053749 or email us when you are ready.
Different roofs, different checks
Inverted and paved roofs
Inverted roofs have the insulation on top of the waterproofing, which affects testing.
Green and ballasted roofs
Testing before planting or ballast goes on is simpler.
Rented homes, blocks and businesses
We survey roofs for letting agents and landlords as well as homeowners. The report gives you a dated record of the flat roof membrane, with photos.
Buyers’ agents can book surveys on behalf of their clients. Reports are emailed, so they’re easy to pass on.
Also near Radwell
Also in Radwell
Your questions about electronic leak detection in Radwell
Will you come out to Radwell?
We do. Villages and rural addresses get the same survey as a town house, with the route planned beforehand.
Is my home in Radwell listed or in a conservation area?
Start with Historic England’s list for listing and your council for conservation areas. Either can affect what roof work is allowed, so it’s worth checking before planning any.
How quickly is the report sent?
The Premium Survey report comes the same day, the Standard within 24–48 hours and the Basic within 48 hours. Each one is emailed.
Can you give me structural calculations?
No. We’re roof surveyors, not structural engineers. If we see signs that need an engineer’s opinion, we will recommend one.
Will you fly a drone over my roof?
Yes, where it is applicable. Our sub-250g drone is flown by a CAA-registered operator with a Flyer ID and Operator ID, and the airspace and weather are checked before every flight.
How do I book a survey in Radwell?
To arrange a survey, ring 07833 053749 or send us an email and tell us the address and what you’d like to know. We will confirm the price and agree a day with you.
Is this an asbestos survey?
No. Our report may flag materials that could contain asbestos, but confirming it is a job for a specialist asbestos surveyor. Buildings built or refurbished before 2000 may contain it.
What happens on the day
Every roof is different, but as a rough guide the survey takes longer on a large roof than a small one, with the construction of the roof playing a part too. You’re welcome to ask questions while we’re there. Somewhere as small as Radwell, access is frequently the only tricky part. Let us know about outbuildings, past repairs and any leaks you’ve noticed. Visits can be on weekdays, Saturdays or Sundays.
- We start with what you know about the roof and the leak.
- The roof is assessed for suitability first.
- We choose a low-voltage or high-voltage method to match the roof.
- The membrane is tested and breaches are found.
- A report with photos shows where each breach is.
Getting ready for the survey
- Tell us where we can park nearby
- Jot down any questions you want answered
- Keep pets inside or away from the areas we are looking at
Getting a price
Surveys can be booked for weekdays, Saturdays or Sundays. To arrange a day that suits you, call 07833 053749 or email us.
Read more
Do you need electronic leak detection in Radwell?
If a flat roof keeps leaking after patching, the hole may be elsewhere. Electronic testing helps pinpoint it.
Common reasons to book include:
- Leaks under green or ballasted roofs
- Leaks at pipes, outlets or fixings
- A flat roof leak that cannot be traced
- Repairs that haven’t stopped the leak
Anyone responsible for a site like Norton St Nicholas CofE (VA) Primary School will know that schools and public buildings frequently have big flat roofs, and their outlets and upstands need regular checks.
Before booking any roof surveyor
- Whether you can ask questions once you have the report
- If they fly a drone, whether they hold a CAA Flyer ID and Operator ID
- Is VAT included in the price?
- How long the report takes to arrive