Hertfordshire · London and the South East
Graveley Electronic Leak Detection
Get a clear view of the flat roof membrane at a property in Graveley. We visit on weekdays and at weekends.
- Damp inside with no sign on the roof
- Waterproofing to test before it’s covered
- Water coming in under a flat roof
Leave it or get it looked at?
Leaks left running can wet the insulation and deck. Locating it early helps limit the damage. For older village homes like those around Graveley, the right replacement materials are not always easy to find quickly. Spotting a problem early leaves room to find them.
Bigger, taller and commercial roofs take more time to survey, so the price reflects that. The price is confirmed before booking.
Why book us in Graveley
- Independent findings on the roof’s condition
- 98% customer satisfaction
- Plain-English reports with photos
- A sub-250g drone, flown with a CAA Flyer ID and Operator ID
Take a look at what a roof survey costs and two real surveys.
Electronic leak detection in Graveley: what you get
There are different ELD methods. Low-voltage methods typically need a wet roof surface, while high-voltage testing needs a dry, exposed membrane. The right method depends on the membrane and the build-up of the roof, and we will explain our choice. If neither method suits your roof, we will tell you at the outset. If you’re worried about leaks through a covered membrane and leaks at pipes, outlets or fixings, a survey will tell you what’s going on, whatever the roof.
Older buildings in small places like Graveley may be listed or in a conservation area, and that can affect how an extension roof or dormer is re-covered. If you are planning work, check with the council first. Knowing the roof’s condition is the starting point. Listed building consent is needed for changes that affect a listed building’s special interest.
The report works through the roof section by section, from the main slopes down to the gutters and outlets, with a note and a photo for each point. You’ll see the good as well as the bad.
- Location
- Graveley (SG4)
- Region
- Hertfordshire
- Prices
- Quoted for your roof
- Report
- Emailed report with photos and recommendations
- Appointments
- Weekdays, Saturdays and Sundays
- Insurance
- PI and public liability insurance
- Call
- 07833 053749
- Last updated
- 27 October 2026
What electronic leak detection doesn’t cover
In fairness, there are limits to any roof survey:
- Moisture spread under the membrane
- Build-ups without a suitable layer below
- Parts of the roof covered by fixed equipment
Not sure which survey suits your roof? You can phone 07833 053749 or send us an email and we’ll tell you. The full list of what we check.
What this survey covers
- Green roofs
- Single-ply roofs
- Roof terraces and balconies
- Liquid-applied waterproofing
- Commercial flat roofs
- Flat roof membranes
Electronic leak detection in Graveley: local notes
Older houses in the South East often have slate or clay tile roofs, while many later estates have concrete tiles, with flat-roofed extensions, dormers and garages common everywhere. Alongside them, flat-roofed extensions, dormers, garages and commercial units are common almost everywhere. About 4.4 miles south lies Knebworth House, a reminder of how long the area around Graveley has been built on. If your home is one of the older ones, expect a mix of original materials and later repairs on the roof, and any change of roofing material on a listed home needs checking with the council first.
For an older house near a landmark such as Church of St Mary, the joins between later flat roofs and the old walls are where problems usually start. For landlords with property near Stevenage station, flat roofs over rear additions and dormers in rented property are worth checking between tenancies. Anyone responsible for a site like Graveley Primary School will know that schools and public buildings often have big flat roofs, and their outlets and upstands need regular checks.
Graveley is about 2 miles north-west of Stevenage, in Hertfordshire. We provide electronic leak detection for householders, landlords and businesses in Graveley and nearby. Graveley is one of the towns and villages in Hertfordshire we cover. Milton Keynes is in our area too.
Here we cover the SG4 postcode area for electronic leak detection. Streets in the area include High Street, Oak Lane and Ashwell Close, all of which we cover. If you’re just outside Graveley, we cover Todd's Green (1 mile south-west), Great Wymondley (1 mile north-west), Little Wymondley (1 mile west), Titmore Green (1 mile south-west) and Lower Titmore Green (1 mile south-west). Within a short drive, we also cover St Albans (14 miles south), Welwyn Garden City (10 miles south), Harpenden (10 miles south-west), Hitchin (3 miles west), Hoddesdon (15 miles south-east) and Hatfield (12 miles south).
Local landmarks in Graveley
Typical jobs here are in homes near Waggon And Horses Public House, Church of Saint Nicholas and The John Henry Newman School. Graveley’s nearest station is Stevenage station, roughly 2.4 miles south of the centre. A little further out are Wymondley Castle (1.1 miles west) and Stevenage Museum (2.4 miles south). The countryside around Graveley includes Purwell Ninesprings.
Questions from Graveley
Is Graveley in the area you cover?
Yes, Graveley is one of the places we work. Every survey there gets the same written report with photographs.
Is Graveley within the area you cover?
Yes. Graveley is within the area we cover, which takes in towns, villages and rural addresses. We work right across London and the South East. Just mention lanes, gates or anything else about the route as you book.
Do I have to be there for the survey?
It depends on what we need to see. Inside the building and in the loft, we need someone to let us in.
Will you fly a drone over my roof?
Where it helps and the rules allow, yes. We hold a CAA Flyer ID and Operator ID and fly a drone under 250g, and the airspace and weather are checked before every flight.
How do I arrange electronic leak detection in Graveley?
Just ring 07833 053749 or drop us an email. We will ask a few questions, confirm the price and agree a date, weekday or weekend.
How much time does ELD need?
Testing typically takes a time that depends on the size of the roof and how it’s built, which we set out in the quote.
How many surveys have you done?
We’ve been surveying roofs for over 20 years and have completed over 5,000 surveys.
Prices for electronic leak detection in Graveley
The price reflects the time and kit the roof needs. That comes down to:
- Any need for thermal images or a drone flight
- Extensions, dormers and garages with roofs of their own
- Building height and the viewpoints available
- The shape of the roof and its details
What a survey costs comes down to the roof itself: its size, its height, how many sections it has and how safely it can be seen. Electronic leak detection is quoted for your roof, because the method depends on the roof.
What we need to know
If you can, have these to hand when you get in touch:
- What’s prompted the survey
- Pictures of the roof from a safe spot, if you have them
- The property’s address and postcode
- Any stains, drips or damp patches you’ve seen indoors
If you have photos of the roof, send them over. Take them safely from ground level or a window. To send them or to book, phone 07833 053749 or email us.
Towns and villages near Graveley
Also in Graveley
How it works
Expect us to ask a few questions before we start, about the roof’s history, any leaks and past repairs. Then the inspection itself takes a length of time set by the membrane area and the build-up, and we’ll give you a guide when quoting. Cottages and farmhouses around Graveley frequently have roofs at several levels, with lean-tos and outbuildings attached. Each part is looked at from wherever it can be seen safely, and anything we cannot see is noted.
- You let us know about the roof and where water is showing.
- We check whether the membrane and build-up suit ELD.
- We choose a low-voltage or high-voltage method to match the roof.
- The membrane is tested and breaches are found.
- You get a report with photos of each breach.
Preparing for the visit
- Keep pets in another room
- Make sure the loft hatch can be reached
- Let us know about parking before the day
How to book
To book a survey, phone 07833 053749 or send us an email with the address and what you’d like to know about the roof. You’ll know the price before anything is booked.
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Tips from our surveys
A survey works best with a little help from you, before and after. Some tips:
- Note where leaks show inside and when
- Do not leave water getting in
- Keep outlets clear of debris
- Share any drawings of the roof
File the report with your roof paperwork. It shows the condition of the membrane on that date.
Don’t leave a flat roof leak running. The longer water gets in, the more insulation and decking can be affected.
Surveys for landlords and agents in Graveley
Buyers’ agents can book surveys on behalf of their clients. The report is emailed, so it can go straight to your client.
Businesses and commercial landlords can book us too. Bigger roofs take more time, and they’re priced for the size.