Surrey · London and the South East
Electronic leak detection in Caterham, Surrey
Electronic leak detection to pinpoint holes in flat roof membranes for Caterham, from an experienced roof surveyor. Every survey comes with a written report and photos.
- Gaps at membrane joints
- A flat roof leak that can’t be traced
- Leaks through a covered membrane
Electronic leak detection in Caterham: what you get
Some flat roofs cannot be tested electronically. Some membranes conduct electricity themselves and some roofs do not have a suitable layer beneath the membrane. If your roof isn’t suitable, we’ll tell you at the start. Any details you have about the membrane and build-up help us decide, including drawings, specifications or the roofer’s paperwork. It avoids arranging a test that cannot give results. We’re often asked to look into punctures from foot traffic or tools and breaches around outlets and penetrations, on liquid-applied waterproofing, commercial flat roofs and roof terraces and balconies.
Houses around a town like Caterham frequently have a flat roof somewhere, over an extension, garage, porch or dormer. Older ones are frequently felt, which frequently lasts around 15–20 years, while newer ones may be EPDM rubber or GRP fibreglass. Ponding water, splits along the edges and lifting upstands are the usual warning signs. Standing water days after rain frequently shows a flat roof needs attention.
The report is written in plain words, so you don’t need to be a roofer to follow it. Photos show what each point refers to, with the urgent items made clear.
- Location
- Caterham (CR3)
- Wider area
- Surrey
- Cost
- Quoted for your roof
- Your report
- A written report with photos, by email
- When we survey
- Weekdays and weekends
- Insured
- Professional indemnity and public liability
- Phone
- 07833 053749
- Updated
- 27 October 2026
Signs you need electronic leak detection in Caterham
New membranes can have defects from installation. ELD on a new roof can show holes before they cause leaks.
Common reasons to book include:
- Leaking laps in the waterproofing
- Damage from equipment installers
- New roofs to check before paving or planting
- Breaches around outlets and penetrations
Anyone responsible for a site like Hillcroft Primary School will know that ponding and blocked outlets on a wide flat roof are worth catching before the next wet season.
Before you book any roof surveyor
- How long the report takes to arrive
- How much experience they have with roofs like yours
- Whether they hold professional indemnity and public liability insurance
- What exactly goes into their report
Honest limits
We only report whatever is safely visible on the day, so some things are outside what a survey can do:
- Water entering through details rather than the membrane
- Areas we can’t reach or that can’t be tested
- Carrying out the repair work
If you’re not sure which survey you need, ring 07833 053749 or send us an email and we will give you a straight answer. What a survey covers and does not.
What we look at
- Green roofs
- Single-ply roofs
- Commercial flat roofs
- Flat roof membranes
- Liquid-applied waterproofing
- Roof terraces and balconies
Electronic leak detection in Caterham: local notes
The wider area around Caterham has a long history of building, with Titsey Place about 4.7 miles east. If yours is one of the older homes, expect a mix of original materials and later repairs on the roof, and the council can say whether a home is in a conservation area. Older houses across Surrey often have handmade clay tiles, and many have tile-hanging. Some old buildings in Surrey and Sussex have Horsham stone slab roofs. Mixed in with those pitched roofs are plenty of flat ones, over rear extensions, dormers, garages and shops.
If you own a rental within reach of Caterham station, flat roofs over rear additions and dormers in rented property are worth checking between tenancies. The streets around a church such as Sacred Heart Church are frequently among the oldest in a place, and if yours is one of the older homes nearby, any flat roof added at the back or on a dormer is likely to be far younger, and less durable, than the main roof.
Caterham is about 11 miles south-west of Orpington, in Surrey. We survey roofs in Caterham and the surrounding area as part of our work across London and South East England. Our Surrey coverage includes Caterham. Our Crawley page covers surveys nearby.
Surveys in CR3 are booked the same way as anywhere else. That includes homes and businesses on High Street, London Road and Park Road and the roads around them. Being close to the B2030 and B2031, Caterham is easy for us to reach. We also cover Woldingham Garden Village (2 miles east), Tyler's Green (2 miles south-east), Woldingham (3 miles east), Godstone (3 miles south) and Church Town (3 miles south-east). Within a short drive, we also cover Epsom (8 miles north-west), Horley (8 miles south-west), Redhill (5 miles south-west), Ewell (8 miles north-west), Reigate (6 miles south-west) and Walton-on-Thames (15 miles north-west).
What’s near Caterham
Locally, jobs take us to homes and businesses close to Sunnydown School, The King And Queen Public House and de Stafford School and the streets around them. The nearest railway station is Caterham station, roughly 0.7 miles south-east of the centre. Well-known places in the area include Bletchingley Castle (3.4 miles south) and East Surrey Museum (0.6 miles south-east). The countryside around Caterham includes South London Downs National Nature Reserve and Mercers Lake.
Practical tips
Most of what helps is simple and safe from the ground. A few suggestions:
- Find the breach before more patching
- Note where leaks show inside and when
- Check trades protect the waterproofing
- Test new membranes before covering them
If we think the leak is not coming through the membrane, the report says so, so other causes can be checked.
Ask trades working on the roof to protect the membrane when fitting equipment. Have the roof looked at after other work.
Caterham questions
Does a conservation area affect roof work in Caterham?
Start with Historic England’s list for listing and your council for conservation areas. Either can affect what roof work is allowed, so it’s worth checking before planning any.
Is there anything to prepare before you come to Caterham?
It’s useful to clear access to the loft, and to let us know about leaks, damp patches or recent work. Let us know about parking and access in Caterham too.
How much does electronic leak detection cost?
Each roof is quoted on its size and build-up. Send us details of the roof, and ring 07833 053749 or use the contact form for a quote.
Do you survey roofs on blocks of flats?
Yes, if the freeholder or managing agent agrees access. We look at the parts we are given access to, and the report makes that clear.
What insurance do you have?
We’re covered by professional indemnity and public liability insurance, for every survey we carry out.
Do you use drones?
Yes, where it’s applicable. Whether we can fly on the day depends on the weather and the airspace rules, and we check for restrictions near airports before flying. We are a CAA-registered drone operator.
Does ELD work under paving or planting?
It can be possible, depending on the roof. Covered roofs limit the methods we can use, so we check the build-up first.
How the survey works
Every roof is different; as a rough guide, the survey takes longer on a large roof than a small one, with the construction of the roof playing a part too. You are welcome to ask questions while we are there. For a home in Caterham, the main things we need are a way into the loft, a route to the back garden and somewhere to park. If you will not be there yourself, let us know who will let us in.
- 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.
Getting ready for the survey
- Unlock side gates and any roof access doors
- Make a note of anything you’d like us to look at
- If the roof is shared, arrange access with whoever manages the building
Getting a price
Our phone lines are open seven days a week, including Saturdays and Sundays. For a price or to book, phone 07833 053749 or send us an email.
Read more
Should I look at the roof myself first?
After heavy rain, check ceilings and the tops of walls for new stains. Take a photo and write down when you saw it.
What you can’t do safely is get up close. Slates, tiles, flat roofs and rooflights can give way. That is where a survey comes in, using safe viewpoints and a drone where applicable.
Also near Caterham
Also in Caterham
What affects the price in Caterham
Prices vary from roof to roof, for these reasons:
- Chimneys, valleys, parapets and other details
- The roof’s overall size
- How tall the building is and how easy the roof is to see
- Any need for thermal images or a drone flight
All our prices include VAT. Electronic leak detection is quoted for your roof, because the method depends on the roof. You will know the price for the job before you book.
What to let us know when you get in touch
Here’s what helps us most when you get in touch:
- Where the property is, with the postcode
- Your timetable, such as an exchange date
- Any photos you have, taken from the ground or a window
- Where water is showing inside, if it is
Most bookings start with a short call: call 07833 053749 or email us. You’ll have a price before anything is arranged.