Hertfordshire · London and the South East
Elstree Electronic Leak Detection
Electronic leak detection to pinpoint holes in flat roof membranes in Elstree. We’ve completed more than 5,000 surveys across London and South East England.
- Leaks through a covered membrane
- Repairs that haven’t stopped the leak
- Holes around roof penetrations
How it works
We check the roof from outside and, where it’s relevant and there’s safe access, from inside the loft space too. Inside, we look for staining, damp, gaps and signs of movement, as far as the space allows. The whole visit typically takes longer on a large roof than a small one, with the construction of the roof playing a part too. For a village or hamlet like Elstree, the journey is planned ahead of time: let us know about lanes, gates and parking. The roof is looked at from ground level, from windows, from the loft where there’s safe access and from the roof where it is safe.
- We start with what you know about the roof and the leak.
- 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.
Before we arrive
- Have any paperwork from past roof work to hand
- Let us know about parking before the day
- Make sure the loft hatch can be reached
Book a survey
To arrange a survey, call 07833 053749 or use the contact form with the address and what you’d like to know about the roof. You will know the price before anything is booked.
Related advice
About our electronic leak detection in Elstree
Our ELD report shows where each breach was found with photos. Your roofer can then repair those points rather than guessing. Repair costs aren’t part of the report; that’s for your roofer to price. Testing again after repairs can confirm the breaches have been dealt with if the build-up allows. Results come in a written report with photos. We survey flat roof membranes, single-ply roofs and commercial flat roofs, and the problems we are asked to look at most are leaks showing away from the breach and holes around roof penetrations.
Some older homes in villages like Elstree are listed or in a conservation area, which can shape what a new flat roof may look like. 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 is yours to share with whoever needs it: your solicitor, the seller, your insurer, a roofer or the building’s managing agent.
- Place
- Elstree (WD6)
- Wider area
- Hertfordshire
- Price
- Quoted for your roof
- Your report
- Emailed report with photos and recommendations
- Appointments
- Weekdays, Saturdays and Sundays
- Insured
- PI and public liability insurance
- Telephone
- 07833 053749
- Updated
- 27 October 2026
When you need someone else
It’s useful to know what a survey won’t do before you book:
- Areas we can’t reach or that can’t be tested
- Carrying out the repair work
- Leaks from plumbing or windows
If in doubt, ring 07833 053749 or use the contact form and we’ll suggest the right survey. What a survey covers and does not.
Roof types and parts we check
- Commercial flat roofs
- Single-ply roofs
- Green roofs
- Liquid-applied waterproofing
- Flat roof membranes
- Roof terraces and balconies
Different roofs, different checks
Inverted and paved roofs
Inverted roofs have the insulation on top of the waterproofing and that changes how testing works.
Bituminous membranes
Bituminous felt and modified bitumen membranes are common. Whether ELD suits them depends on the build-up.
FAQs for Elstree
Do you carry out roof surveys in Elstree?
Yes, Elstree is within the area we cover. We work right across London and the South East. You can ring 07833 053749 or drop us an email with the address and some details, and we’ll talk through which survey suits.
Is my home in Elstree listed or in a conservation area?
Your council is the best source, with Historic England’s list for listed buildings. Both listing and conservation areas can limit changes of roofing material, and councils can also use Article 4 directions.
How do I arrange electronic leak detection in Elstree?
Just phone 07833 053749 or email us with the address. After a few questions, we confirm the price and fix a day, weekday or weekend.
Can every flat roof be tested?
Not every roof is suitable. Some membranes conduct electricity and some roofs lack the layer the test needs. If your roof will not work, we’ll say so before testing.
How experienced are you?
We’ve been surveying roofs for over 20 years and have completed over 5,000 surveys.
Do I need to be at home?
Someone needs to let us in if we’re looking inside or in the loft. We’ll talk about access when you book.
How does ELD work?
ELD passes a small electrical current across the roof to locate holes in the membrane. A breach lets the current through so we can pinpoint it.
What we’re asked to look at in Elstree
New membranes can have defects from installation. Testing before the roof is covered or handed over helps find them.
We’re often asked to look at:
- Breaches around outlets and penetrations
- Damage from equipment installers
- Leaks through a covered membrane
- Stains far from any visible defect
Landlords with a home close to Elstree & Borehamwood station may find that the flat roof over a let home is worth a look before it becomes a tenant complaint.
Questions to ask before you book
- Which viewpoints they use to see the roof
- Whether any drone flown is registered with the CAA
- What the report includes, and whether it has photos
- What experience they bring
Places near Elstree
Also in Elstree
How we price electronic leak detection
Prices vary from roof to roof, and it comes down to:
- Extensions, dormers and garages with roofs of their own
- The size of the roof
- The type of building, from a house to a block or an office
- The shape of the roof and its details
For a price for your roof in Elstree, call 07833 053749 or email us and tell us about the roof. The price is agreed before a date is set.
Booking your survey
A few details help us suggest the right survey and price. When you get in touch, it helps to mention:
- Where any leaks, stains or damp patches show inside
- The kind of building and roof involved
- How the loft is reached, if there is one
- When you need the report by
We survey roofs on any day of the week. To find a date that works for you, call 07833 053749 or send us an email with the address and the days you’d prefer.
Electronic leak detection around Elstree
Historic houses such as Headstone Manor, about 4.1 miles south-west, show how far back building in the area around Elstree goes. If you own one of the older houses, 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. Slate and clay tile are the usual coverings on older South East houses, with concrete tiles on many later estates. Alongside them, flat-roofed extensions, dormers, garages and commercial units are common almost everywhere.
Take an older house close to Church of St Nicholas: any flat roof added at the back or on a dormer is likely to be far younger, and less durable, than the main roof. If you look after a building such as St Nicholas Elstree Church of England VA Primary School, a large flat roof with a good many outlets and rooflights has many places where a membrane can fail.
Elstree is about 2 miles south-west of Borehamwood, in Hertfordshire. Whether the building in Elstree is a house, a flat or a commercial unit, we can survey the roof. Elstree is one of the places in Hertfordshire we cover. There is also a page for London.
We work across WD6 for electronic leak detection. Streets in the area include High Street, West View Gardens and Summer Grove, and we cover them all. Neighbouring places we cover for electronic leak detection include Deacon's Hill (1 mile east), Edgware Bury (1 mile south-east), Broadfields Estate (2 miles south-east), Borehamwood (2 miles north-east) and Edgware (2 miles south-east). We also work in nearby towns such as Watford (5 miles west), Hemel Hempstead (10 miles north-west), St Albans (8 miles north), Welwyn Garden City (12 miles north-east), Harpenden (12 miles north) and Hoddesdon (14 miles north-east).
Local landmarks in Elstree
Typical jobs here are in homes near The Holly Bush pub, London Academy and Aldenham Country Park. Elstree’s nearest station is Elstree & Borehamwood station, roughly 1.1 miles north-east of the centre. Nearby you’ll also find Elstree and Borehamwood Museum (1.4 miles north-east) and Royal National Orthopaedic Hospital (0.8 miles south). Not far away are Darland's Lake and Edgware Way Grassland.
Before and after the survey
Here are a few things we’d tell any owner:
- Get leaks traced quickly
- Stay off the flat roof unless needed
- Check trades protect the waterproofing
- Find the breach before more patching
If we think the leak isn’t coming through the membrane, the report says so, so other causes can be checked.
Keep people off the flat roof unless they need to be there. Feet and dropped tools are a common cause of holes.