Kent · London and the South East
Electronic Leak Detection in Grubb Street
Electronic leak detection in Grubb Street from an independent, experienced roof surveyor. More than 20 years and over 5,000 surveys.
- Water coming in under a flat roof
- Leaks through a covered membrane
- Damp inside with no sign on the roof
Electronic leak detection for homes and businesses in Grubb Street
Electronic leak detection works on many flat roof membranes, on homes, blocks and commercial buildings. It helps trace a leak you already have or to test a new membrane before it is covered. Each roof is quoted on its size and build-up. Testing can be carried out on weekdays, Saturdays or Sundays when conditions allow. Tell us about your roof to find out more. We survey liquid-applied waterproofing, flat roof membranes and roof terraces and balconies, and the problems we’re asked to look at most are leaks under green or ballasted roofs and leaking laps in the waterproofing.
Flat roofs on exposed homes in small places like Grubb Street take more wind and rain, so edges, upstands and laps take a beating. Older felt roofs, frequently around 15–20 years in life, show it first. Rubber and GRP last longer, though trims and joints still need a look. Exposed edges are usually the first part of a flat roof to go.
The report records the flat roof membrane as we found it on the day. It is useful straight away, and a good reference for later, like when you want to compare after future work.
- Place
- Grubb Street (DA2)
- Wider area
- Kent
- Price
- Quoted for your roof
- Reports
- Written, with photos, emailed to you
- Appointments
- Weekdays, Saturdays and Sundays
- Insured
- Professional indemnity and public liability
- Telephone
- 07833 053749
- Updated
- 27 October 2026
How the survey changes by roof type
Inverted and paved roofs
Inverted roofs have the insulation on top of the waterproofing, which affects testing.
Bituminous membranes
Bitumen roofs can frequently be tested electronically though the layers below matter.
What electronic leak detection looks like in Grubb Street
Many older homes in Kent have handmade clay tiles, including Kent peg tiles held by pegs through two holes, and tile-hanging on their upper walls. Kent’s older buildings take in oast houses and timber-framed Wealden hall houses as well. Flat roofs fill the gaps in between, on extensions, garages, dormers and business premises. The wider area around Grubb Street has a long history of building, with Lullingstone Castle about 5 miles south-west. Older roofs in the wider area can hide decades of patch repairs, so the detail matters, and any change of roofing material on a listed home needs checking with the council first.
If you look after a building like Greenlands Primary School, schools and public buildings often have big flat roofs, and their outlets and upstands need regular checks. Landlords with a home close to Longfield station may find that the flat roof over a let home is worth a look before it becomes a tenant complaint.
Grubb Street is about 3 miles south-west of Northfleet, in Kent. In Grubb Street, as across Kent, every roof gets the same careful survey. Grubb Street is one of the towns and villages in Kent where we work. We also survey roofs in Maidstone.
Surveys in DA2 are booked the same way as anywhere else. Neighbouring places we cover for electronic leak detection include Green Street Green (1 mile north), Westwood (1 mile north-east), St Margarets (1 mile west), South Darenth (1 mile west) and Bean (1 mile north). We also work in nearby towns like Maidstone (14 miles south-east), Dartford (4 miles north-west), Sevenoaks (10 miles south-west), Gravesend (5 miles north-east), Tonbridge (14 miles south) and Northfleet (3 miles north-east).
What’s near Grubb Street
Typical jobs here are in homes near Longfield Chalk Bank, Railway Tavern and Longfield Academy and the streets around them. For rail, the closest station is Longfield station, about 1 mile south-east of the centre. A little further out are Stone Castle (2.6 miles north) and Darent Valley Hospital (2.3 miles north-west). The countryside around Grubb Street includes Sawyers Lake.
What affects the price in Grubb Street
When we price a survey, we consider:
- Any need for thermal images or a drone flight
- How big the roof is
- Height and safe access
- Features like valleys, chimneys, dormers and parapets
Larger roofs, taller buildings and commercial roofs take longer, so they’re priced to match. The price is confirmed before you book.
Helping us price your survey
The more you tell us, the easier it is to price the survey. When you contact us, let us know:
- Pictures from the garden or a window, if you have them
- The type of building and roof, like pitched or flat
- Dates you are working to, such as exchange
- The property’s address and postcode
Getting a price is simple: just call 07833 053749 or send us an email, tell us about the property and we will explain which survey suits. The price is agreed up front.
Towns and villages near Grubb Street
What else we do in Grubb Street
FAQs for Grubb Street
How do I find out if my home in Grubb Street is listed?
For listing, use Historic England’s list; for conservation areas, ask the council. It matters most if you are planning to re-roof in a different material.
Will you come out to Grubb Street?
Yes, Grubb Street is covered. We work right across London and the South East, from towns to the smallest villages. Longer journeys are simply planned beforehand.
Will you fly a drone over my roof?
Where it helps and the rules allow, yes. 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.
Does electronic leak detection work on all membranes?
ELD doesn’t suit every roof. Certain membranes are conductive and some roofs lack the layer the test needs. If your roof won’t work, we’ll say so at the start.
How long does electronic leak detection take?
The roof’s size and build-up decide how long it takes. We’ll give you an idea when we quote.
What’s in the survey report?
It explains what we saw, what it means and what we’d suggest, backed by photographs. It also says if any part of the roof couldn’t be seen safely.
Do you test for asbestos?
No. We can flag materials that might contain asbestos, but only a specialist asbestos surveyor can confirm it. It may be present in buildings built or refurbished before 2000.
DIY checks: what’s safe
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.
It’s useful to keep a record: when leaks happen, ground-level photos and any past roof work. Share it with us as you book and it will help the survey.
The survey, step by step
We photograph the roof as we go, so the report shows exactly what we saw. Close-ups come from the safest viewpoint available. A typical visit takes a length of time set by the roof’s area and construction, which we set out in the quote. Older rural homes like those around Grubb Street can have a main roof, lower lean-to roofs and outbuildings all joined together. Each part is looked at from wherever it can safely be seen.
- First, you tell us about the roof build-up and where water is showing.
- The roof is assessed to see if electronic testing will work on it.
- We pick the low-voltage or high-voltage method that suits the roof.
- Testing runs across the roof to locate breaches in the membrane.
- We send a report with photos of each breach so your roofer can repair it.
Preparing for the visit
- Let us know where we can park nearby
- Unlock side gates and any roof access doors
- Make sure pets are kept safely away
How to book
Our phone lines are open seven days a week, including Saturdays and Sundays. To book or ask a question, phone 07833 053749 or email us.
Advice
Why get it checked now?
Not every leak is in the membrane. Testing shows whether the membrane is breached, so other causes can be checked. Older and listed buildings around Grubb Street may need consent and matching materials for repairs, so a defect found early gives time to plan the work properly.
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 choose Independent Roof Survey in Grubb Street
- More than 5,000 surveys completed
- Thermal imaging and drone inspection where they help
- Satisfaction rate of 98%
- An independent view of the roof
Take a look at our cost guide and our case studies.
Signs you need electronic leak detection in Grubb Street
Flat roof membranes can be punctured by foot traffic, dropped tools or debris. Some are too small to see but water still finds them.
Here are some of the things we see often:
- Holes left by work on the roof
- Waterproofing to test before it is covered
- Leaks showing away from the breach
- Water coming in under a flat roof
Shop and office owners around Bluewater may find that flat roofs over shops and units are easy to forget until water comes through a ceiling.
Before booking anyone
- When you will get the report
- Whether any drone flown is registered with the CAA
- Will they check the loft as well as the outside?
- Whether you can ask questions once you have the report