Southampton · London and the South East
Electronic leak detection in Thornhill, Southampton
Electronic leak detection across Thornhill, backed by more than 20 years’ experience. You get a clear report with photos.
- New roofs to check before paving or planting
- Water coming in under a flat roof
- Stains far from any visible defect
Electronic leak detection in Thornhill: what you get
Our ELD report shows where each breach was found with photos. It tells your roofer exactly where to repair instead of hunting for the leak. Repair costs aren’t part of the report; that is for your roofer to price. A retest after repairs can check the work, where the roof still suits the method. Results come in a written report with photos. We survey roof terraces and balconies, commercial flat roofs and liquid-applied waterproofing, and people most often book us about leaking laps in the waterproofing and new roofs to check before paving or planting.
In a smaller place like Thornhill, some flat roofs sit in the open, where wind can catch loose edges and trims. Felt and bitumen also age in strong sun. The signs are splits, blisters and edges coming away. A flat roof that still holds water days after rain is also worth a closer look.
The report records the flat roof membrane as we found it on the day. That makes it useful now and a handy reference later, such as when you want to compare after future work.
- Where
- Thornhill (SO19, SO18, SO30)
- Region
- Southampton
- Prices
- Quoted for your roof
- Your report
- A written report with photos, by email
- When we survey
- Weekdays and weekends
- Cover
- PI and public liability insurance
- Call
- 07833 053749
- Updated
- 27 October 2026
When to book a survey in Thornhill
Work on the roof can damage a membrane. Fixings, equipment and foot traffic can leave small holes.
Common reasons to book include:
- Failed seams and laps
- Punctures from foot traffic or tools
- Breaches around outlets and penetrations
- Water coming in under a flat roof
If you look after a shop, office or commercial unit, for example near Marlands Shopping Centre, outlets and upstands on commercial flat roofs are the places to check before trouble starts.
Questions to ask before you book
- Which viewpoints they use to see the roof
- Whether the roof space is looked at, where there is one
- Will the report include photos?
- Do they have a CAA Flyer ID and Operator ID for drone work?
Places near Thornhill
Also in Thornhill
Why it is worth a survey now in Thornhill
Cutting open a flat roof to find a leak can cause more damage. Electronic testing finds the hole first so your roofer knows where to work. Around Thornhill, a leak in an older house can soak into timbers and plaster, which is far harder to put right than the roof fault itself.
All our prices include VAT. We quote electronic leak detection for each roof, as the method and time depend on the roof. You’ll know the exact price before booking.
Why choose Independent Roof Survey in Thornhill
- Customer satisfaction of 98%
- More than 5,000 surveys completed
- Surveys seven days a week
- Thermal imaging and drones used where they help
Surveys for landlords and agents in Thornhill
Letting agents frequently book on a landlord’s behalf. We agree a time with the tenant beforehand.
With a portfolio of properties, surveys can be booked for more than one address. To arrange surveys for several addresses, phone 07833 053749 or email us.
How it works
The visit typically starts outside and finishes in the loft: first the slopes, edges and gutters from every safe viewpoint, then the loft space where it can be reached. All told, expect more time on a big roof than a small one, and the build-up of the roof makes a difference too. Parking around Thornhill is typically easier than in a town centre, but mention lanes, gates or long drives. Low roofs on bungalows can often be seen well from ground level, and the loft shows the rest.
- First, we confirm which roof areas are included.
- The surface is prepared for the chosen method.
- Testing runs across the agreed area.
- We mark the breach locations in our records.
- The report is sent for your roofer to act on.
How to prepare
- Tell us about parking before the day
- Make a note of anything you’d like us to look at
- If you are buying, check with the agent that we can get in
Book a survey
To arrange a survey, ring 07833 053749 or email us with the address and what you’d like to know about the roof. You will know the price before anything is booked.
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Practical tips
Here are a few things we’d tell any owner, before and after a survey:
- Ask contractors to protect the membrane
- Limit access to the roof
- Clear flat roof outlets regularly
- Consider ELD before paving or planting goes on
Questions about the results are welcome. We can talk you through the findings.
Check contractors protect the waterproofing when fitting equipment. Have the roof looked at after other work.
Prices for electronic leak detection in Thornhill
All our prices include VAT. What changes the price is:
- Whether it’s a home or a commercial building
- Extensions, dormers and garages with roofs of their own
- If the survey needs thermal imaging or a drone
- How complicated the roof is, with its valleys, chimneys and parapets
The cost of a survey depends on the roof: how big it is, how high it is, the number of separate roofs and how it can be reached and seen safely. Electronic leak detection is quoted for your roof, because the method depends on the roof.
Helping us price your survey
Before you get in touch, it’s useful to have:
- Any photos you have, taken from the ground or a window
- How the loft is reached, if there is one
- The address and postcode of the property
- What’s prompted the survey
We confirm the price for your survey before booking, so you know where you stand. We quote electronic leak detection for each roof, as the method and time depend on the roof. For a price for your roof, phone 07833 053749 or send us an email.
Your questions about electronic leak detection in Thornhill
Will you come out to Thornhill?
Yes. Thornhill is within the area we cover, which takes in towns, villages and rural addresses. Our area covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do roofs near the sea, like those around Thornhill, take more of a battering?
It can do. Within about 3 miles of the sea, as Thornhill is, metal fixings wear faster and gales find any loose ridge or slate.
Does electronic leak detection work on all membranes?
ELD doesn’t suit every roof. Certain membranes are conductive and some roofs lack the layer the test needs. We’ll tell you if yours is not suitable at the start.
Is the repair part of the test?
No, our part is finding the breaches. The report gives your roofer the locations.
How do I arrange electronic leak detection in Thornhill?
To arrange a survey, ring 07833 053749 or email us and let us know the address and what you want to find out. We will confirm the price and agree a day with you.
What insurance do you have?
Every survey is covered by professional indemnity and public liability insurance, and details are available on request.
Can you tell me if my roof has asbestos?
No. Asbestos surveys and sampling aren’t something we do. The report may flag materials that could contain asbestos on buildings built or refurbished before 2000.
Electronic leak detection in Thornhill: local notes
The coast is about 3 miles or less from Thornhill, and being near the sea means more wind and salt than a roof inland would face. Wind can catch loose edges and trims on a flat roof, and salt air is hard on metal trims, flashings and fixings. Thatch survives on some older buildings in Hampshire’s villages. Slate and clay tile are the usual coverings on older South East houses, with concrete tiles on many later estates. Flat roofs fill the gaps in between, on extensions, garages, dormers and business premises.
Take an older house close to St Christopher: the joins between later flat roofs and the old walls are where problems typically start. Landlords with a home close to Sholing station may find that a flat roof over a rented flat is easy to forget until the tenant reports a leak.
Thornhill is about 2 miles east of Southampton, in Southampton. We carry out electronic leak detection for homes and businesses in Thornhill and nearby. Our Southampton coverage includes Thornhill.
Postcode districts we cover here for electronic leak detection: SO19, SO18 and SO30. Whether your property is on Drove Road, Barry Road and Luton Road or anywhere close by, we can help. You’ll find Thornhill on the A334, which makes it straightforward to reach. Neighbouring places we cover for electronic leak detection include Harefield (1 mile north), Sholing (1 mile south-west), Bitterne (1 mile west), West End (1 mile north) and Chartwell Green (1 mile north). We also work in nearby towns such as Shirley (4 miles west), Regents Park (4 miles west), Maybush (5 miles west), Portswood (3 miles north-west), Coxford (5 miles west) and Freemantle (4 miles west). As one of the bigger places in Southampton, Thornhill has homes, rented property and businesses of every kind.
Around Thornhill
Around Thornhill, our work takes us to homes and buildings near Westwood Woodland Park, Woodlands Community College and Grove Park Business and Enterprise College and the streets around them. For rail, the closest station is Sholing station, about 1.4 miles south-west. Nearby you’ll also find Moorgreen Hospital (1.4 miles north-east) and Bitterne Local History Society Heritage And Research Centre (1.1 miles west). Open spaces near Thornhill include Netley Common.