Hertfordshire · London and the South East
Electronic Leak Detection in Croxley Green
Electronic leak detection to pinpoint holes in flat roof membranes in Croxley Green, carried out by an experienced roof surveyor. Every survey comes with a written report and photos.
- Waterproofing to test before it’s covered
- Leaks showing away from the breach
- Breaches hidden under paving or planting
Electronic leak detection in Croxley Green: what you get
Our ELD report shows where each breach was found with photos. Your roofer can then repair those points instead of hunting for the leak. We do not estimate repair costs; that is for your roofer to price. A retest after repairs can check the work if the build-up allows. Results come in a written report with photos. We survey single-ply roofs, commercial flat roofs and green roofs, and people most often book us about leaks under green or ballasted roofs and stains far from any visible defect.
Somewhere as small as Croxley Green, flat roofs tend to be on extensions, garages and converted outbuildings. They need the same care as any town roof: outlets, upstands, edges and the covering itself. The journey and access are planned beforehand. If there are outbuildings or garages with flat roofs, mention them as you book.
If any part of the flat roof membrane couldn’t be seen safely, we say so in the report. You will know exactly what was inspected and what wasn’t.
- Place
- Croxley Green (WD3, WD18)
- Wider area
- Hertfordshire
- Price
- Quoted for your roof
- Report
- Emailed report with photos and recommendations
- Survey days
- Weekdays and weekends
- Cover
- Professional indemnity and public liability
- Phone
- 07833 053749
- Last updated
- 27 October 2026
Should I look at the roof myself first?
A DIY look is useful, but it isn’t a survey. From ground level, valleys, flashings and the backs of chimneys are frequently out of sight, and those are details a survey looks at closely.
During heavy rain, look at the gutters from the ground or a window. Water spilling over the edge can be a sign of a blockage or a gutter that has dropped.
The survey, step by step
We look at the roof from outside and, where it is relevant and there is safe access, from inside the roof space too. Inside, we look for staining, damp, gaps and signs of movement, as far as the space allows. The whole visit usually takes a length of time set by the membrane area and the build-up, and we’ll give you a guide when quoting. Rural addresses near Croxley Green can be hard to find from a postcode alone, so a few directions are welcome. After that, the survey runs as it would anywhere.
- 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.
- The report is sent for your roofer to act on.
Preparing for the visit
- Tell us about parking before the day
- Have keys ready for side gates, garages or roof access doors
- Make a note of anything you’d like us to look at
How to book
You can call us seven days a week, including Saturdays and Sundays. For a price or to book, call 07833 053749 or drop us an email.
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Electronic leak detection in Croxley Green: local notes
About 4.2 miles north-west lies Chenies Manor House, a reminder of how long the area around Croxley Green has been built on. Older homes in the wider area frequently have features worth a closer look, like lead valleys, tall stacks and roofs that have been patched over the years, and the council can say whether a home is in a conservation area. In this part of the South East, older roofs are mostly slate or clay tile and many newer ones concrete tile. Flat roofs fill the gaps in between, on extensions, garages, dormers and business premises.
For businesses in and around places such as Charter Place, a flat roof over a business is out of sight and out of mind until it leaks. If you let a flat or house near Rickmansworth station, 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 St Oswald's Parish Church, the flat roofs on later extensions tend to wear out long before the main roof.
Croxley Green is about 1 mile north-east of Rickmansworth, in Hertfordshire. We carry out electronic leak detection in Croxley Green for houses, flats, blocks and commercial buildings, with a written report and photographs every time. Our area takes in places right across Hertfordshire, from the larger towns to small villages. For surveys nearby, see our London page.
We survey roofs across the WD3 and WD18 postcode area for electronic leak detection and the streets around it. If you need electronic leak detection at a property on New Road, Harvey Road and Bateman Road or anywhere close by, we can help. Other places close to Croxley Green include Holywell (1 mile east), Rickmansworth (1 mile south-west), Batchworth (1 mile south-west), Chorleywood West (2 miles west) and Moor Park (2 miles south). Larger places within reach include Hemel Hempstead (7 miles north), St Albans (9 miles north-east), Welwyn Garden City (15 miles north-east), Harpenden (12 miles north), Hatfield (12 miles north-east) and Borehamwood (7 miles east).
Near you in Croxley Green
In Croxley Green, that means homes and buildings near Croxley Danes School, Rickmansworth School and The Red House. Croxley Green’s nearest station is Rickmansworth station, roughly 1.3 miles west of the centre. Well-known places in the area include Hertfordshire Fire Brigade Museum (2.4 miles east) and Hilfield Castle (4.7 miles east). The countryside around Croxley Green includes Chorleywood Common and Tumbling Bay.
Tips that help
From years of surveys, a few habits stand out:
- Keep foot traffic on flat roofs to a minimum
- Note where leaks show inside and when
- Check new waterproofing before handover
- Don’t let outlets block
Keep the report with the roof’s records. It is a dated record of the membrane’s condition.
Act on leaks quickly. The longer water gets in, the more insulation and decking can be affected.
FAQs for Croxley Green
Do you cover Croxley Green?
Yes, Croxley Green is within the area we cover. Our area covers London and South East England. You can phone 07833 053749 or drop us an email with the address and a few details, and we will talk through which survey suits.
Does a conservation area affect roof work in Croxley Green?
The council and Historic England’s list are the places to check. Either can affect what roof work is allowed, so it’s worth checking before planning any.
How many surveys have you done?
We’ve completed more than 5,000 surveys, over more than 20 years, and 98% of clients are satisfied.
How much time does ELD need?
Testing usually takes more time on a big roof than a small one, and the build-up of the roof makes a difference too.
How do I book a survey in Croxley Green?
To book, ring 07833 053749 or email us with the address, the type of property and what’s prompted the survey. We will confirm the price and find a day that suits.
Will you walk on the roof?
Only when it’s safe. Some roofs are too steep or fragile to walk on safely. Safe viewpoints, the loft and a drone where it applies let us see the rest, and the report records anything we couldn’t see.
Do I need to be at home?
Someone needs to let us in if we’re looking inside or in the loft. We will talk about access when booking.
Landlord and commercial surveys in Croxley Green
With a portfolio of properties, surveys can be booked for more than one address. To discuss a number of properties, ring 07833 053749 or email us with the addresses.
Where a roof is shared: we need access agreed with whoever owns or manages the building. Tell us about it when booking and we’ll plan the survey around it.
Nearby places to Croxley Green
More services for Croxley Green
Different roofs, different checks
Inverted and paved roofs
We’ll tell you if your inverted or paved roof isn’t suitable.
Liquid-applied waterproofing
Small holes in liquid waterproofing may leak. Where the roof suits it, testing can find them.
What affects the price in Croxley Green
All our prices include VAT. The things that change the price are:
- Extra roofs, like extensions, dormers or garages
- The shape of the roof and its details
- Whether thermal imaging or a drone is needed
- Building height and the viewpoints available
Bigger, taller and commercial roofs take more time to survey, so they’re priced to match. The price is confirmed before booking.
What we need to know
You do not need to know any roofing terms. Just let us know:
- Access details, such as a loft hatch or a shared roof
- Any photos you have, taken from ground level or a window
- Your timetable, like an exchange date
- The reason for the survey, such as buying, a leak or storm damage
Surveys can be booked for weekdays, Saturdays or Sundays. To arrange a day that suits you, phone 07833 053749 or drop us an email with the address and the days you’d prefer.