Hertfordshire · London and the South East
Electronic Leak Detection in Chorleywood
Find out the condition of the flat roof membrane at your property in Chorleywood from an independent roof surveyor. We visit on weekdays and at weekends.
- A flat roof leak that can’t be traced
- Gaps at membrane joints
- Holes around roof penetrations
Chorleywood: your questions answered
Do you cover Chorleywood?
Yes. We cover the whole of London and South East England, and Chorleywood is part of that. Just ring 07833 053749 or send us an email and let us know about the property.
Is Chorleywood within the area you cover?
Yes, smaller places are covered as well as towns. We cover the whole of London and South East England. Just mention lanes, gates or anything else about the route when you book.
Does the weather affect the survey?
A survey can usually go ahead in light rain. Heavy rain or strong wind can ground a drone and make the roof unsafe, so we will agree a new date if the weather isn’t suitable.
What insurance do you have?
Professional indemnity and public liability insurance cover our surveys. If you need details for a managing agent or a building owner, just ask.
How much time does ELD need?
It usually takes longer on a large roof than a small one, and the build-up of the roof makes a difference too.
How long have you been surveying roofs?
Over 5,000 surveys so far, across 20+ years of surveying roofs, with 98% customer satisfaction.
Do you carry out surveys on Saturdays and Sundays?
Surveys can be booked for any day of the week: Monday to Friday, Saturdays and Sundays. Tell us which days suit you as you book.
Electronic leak detection for homes and businesses in Chorleywood
A leak in a flat roof often shows up a long way from where the water gets in. So the stain inside rarely sits under the hole. Electronic leak detection tests the membrane itself and locates the breach. We test and report, and the repair is for your roofer. On suitable roofs, it replaces guesswork with a located breach. The results then follow in a written report with photos. If you’re worried about new roofs to check before paving or planting and leaks through a covered membrane, a survey will tell you what’s going on, whatever the roof.
In smaller places like Chorleywood, flat roofs are mostly on extensions, garages, porches and dormers. Even a small flat roof can let lots of water into the room below. Knowing the covering and how it was laid tells you what to expect from it, from felt and asphalt to EPDM rubber and GRP. From an upstairs window, look for standing water, splits and edges coming away.
What you get is a clear record of the flat roof membrane on the day we saw it. It’s useful right away, and a good reference for later, for example when you want to check whether anything has changed.
- Where
- Chorleywood (WD3)
- Region
- Hertfordshire
- Price
- Quoted for your roof
- Reports
- Emailed report with photos and recommendations
- Appointments
- Weekdays, Saturdays and Sundays
- Insured
- PI and public liability insurance
- Telephone
- 07833 053749
- Last updated
- 27 October 2026
Also near Chorleywood
Also in Chorleywood
Honest limits
Our survey is not a RICS Level 2 or Level 3 survey, a structural engineer’s report or an asbestos survey. It also has these limits:
- Leaks from plumbing or windows
- Some conductive membranes
- Fixing the holes we find
Not sure which survey suits your roof? You can call 07833 053749 or use the contact form and we will tell you. The full list of what we check.
What we check
- Commercial flat roofs
- Roof terraces and balconies
- Green roofs
- Liquid-applied waterproofing
- Single-ply roofs
- Flat roof membranes
What we look for on each type of roof
Inverted and paved roofs
A terrace or paved roof hides the waterproofing. Suitability depends on the layers.
Green and ballasted roofs
Roofs with planting or ballast hide the membrane. Some methods can work through these layers but it depends on the layers.
What we do, step by step
Where it is relevant and can be reached safely, the loft space is checked as well as the outside. Inside, we look for staining, damp, gaps and signs of movement. The whole visit normally takes a time that depends on the size of the roof and how it’s built, and we’ll give you a guide when quoting. Being in a smaller place like Chorleywood doesn’t change how the visit works: we look from the ground, from windows, from the loft and from the roof where it’s safe. It helps to show us anything you’ve already noticed.
- We agree the area to be tested.
- We get the roof ready for testing.
- We work across the roof with the test equipment.
- We mark the breach locations in our records.
- You receive the results to pass to your roofer.
Before the survey
- Leave a clear route to the loft
- Note where any stains or damp appear
- Let us know about parking before the day
Getting a price
We confirm the price for your roof before you book, so you know where you stand. Electronic leak detection is quoted for your roof, because the method depends on the roof. For a price for your roof, call 07833 053749 or send us an email.
Related advice
Electronic leak detection in Chorleywood: local notes
The wider area around Chorleywood has a long history of building, with Chenies Manor House about 2.1 miles north-west. Period homes nearby can have lead valleys, tall chimneys and a patchwork of past repairs, 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, with flat-roofed extensions, dormers and garages common everywhere. Flat roofs fill the gaps in between, on extensions, garages, dormers and business premises.
For site and facilities teams at buildings such as Christ Church Chorleywood CofE School, large flat roofs, common on schools and other public buildings, need their outlets, upstands and coverings checked regularly. If you own a rental within reach of Chorleywood station, flat roofs over rear additions and dormers in rented property are worth checking between tenancies. The streets around a church such as Christ Church are frequently among the oldest in a place, and if yours is one of the older homes nearby, flat-roofed rear additions and dormers added over the years are worth checking.
Chorleywood is about 5 miles west of Watford, in Hertfordshire. We carry out electronic leak detection for homes and businesses in Chorleywood. Chorleywood is one of the towns and villages in Hertfordshire we cover for electronic leak detection. London is in our area too.
Electronic leak detection in WD3 work the same way as everywhere else we cover. Local streets include South Cottage Drive, South Cottage Gardens and South Park Avenue, all of which we cover. With the A404 close by, Chorleywood is simple for us to get to. Other places close to Chorleywood include Heronsgate (1 mile south-west), Maple Cross (2 miles south), Chenies (2 miles north-west), Horn Hill (2 miles south-west) and West Hyde (3 miles south). Within a short drive, we also cover Watford (5 miles east), Hemel Hempstead (7 miles north), St Albans (10 miles north-east), Harpenden (13 miles north-east), Hatfield (14 miles north-east) and Borehamwood (10 miles east).
Local landmarks in Chorleywood
Around Chorleywood, our work takes us to homes and buildings near St Clement Danes School, Rickmansworth Park and Black Horse Artichoke Dell pub. Chorleywood’s nearest station is Chorleywood station, about 0.7 miles west of the centre. A little further out are Harefield Hospital (3.2 miles south) and Chiltern Open Air Museum (2 miles south-west). For a walk, there is Chorleywood Common and Tumbling Bay.
Prices for electronic leak detection in Chorleywood
A few things affect what a survey costs:
- If the survey needs thermal imaging or a drone
- Building height and the viewpoints available
- Whether it’s a home or a commercial building
- The shape of the roof and its details
Bigger, taller and commercial roofs take more time to survey, so the price reflects that. The price is confirmed before booking.
Helping us price your survey
The more you tell us, the easier it is to price the survey. When you contact us, tell us:
- Any photos you have, taken from the ground or a window
- Any marks or damp showing indoors
- The style of property, from a terrace to a block
- Any deadline, such as an exchange date
Buyers should book once an offer has been accepted, so there is time to use the report before exchange. For any other survey, just call 07833 053749 or use the contact form when you are ready.
Leave it or get it looked at?
Patching where you think the leak is often misses it. ELD shows the actual breach points. In an older home around Chorleywood, water from a roof defect can get into timber and plaster, and that is a much bigger job than the original defect.
Every price we give includes VAT. We quote electronic leak detection for each roof, as the method and time depend on the roof. You’ll know the price for your roof before booking.
What you get with us
- Weekday and weekend surveys
- Over 5,000 surveys carried out
- Satisfaction rate of 98%
- Plain-English reports with photos
Take a look at what a roof survey costs and two real surveys.
Landlord and commercial surveys in Chorleywood
For a freeholder or residents’ company, a roof report is a sound basis for a maintenance plan.
We survey roofs for landlords and letting agents as well as householders. A report with photos gives you a clear record of the flat roof membrane.