Hertfordshire · London and the South East
Electronic leak detection in Throcking, Hertfordshire
Electronic leak detection across Throcking, backed by more than 20 years’ experience. You get a clear report with photographs.
- Leaks that return after repairs
- Punctures from foot traffic or tools
- Stains far from any visible defect
What you can safely check yourself
Keep a simple record: dates of leaks, photos from the ground and any work done on the roof. Share it with us when you book and it will help the survey.
Fresh stains on ceilings or walls after rain are worth noting. Photograph them and note the date, which helps when we check the roof.
Electronic leak detection for homes and businesses in Throcking
You get a report showing the location of each breach, with photographs. Your roofer can then repair those points rather than guessing. Repair costs are not 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. Typical surveys look at leaks showing away from the breach and waterproofing to test before it’s covered, on liquid-applied waterproofing, commercial flat roofs and flat roof membranes.
In a small place like Throcking, a flat roof can stand in the open, which is hard on edges, upstands and joins in the covering. Older felt roofs, frequently around 15–20 years in life, show it first. EPDM rubber and GRP coverings last longer, but their edges and joints still need checking. Exposed edges are usually the first part of a flat roof to go.
The report is yours to share with whoever needs it: your solicitor, the seller, your insurer, a roofer or the building’s managing agent, whichever applies.
- Place
- Throcking (SG9)
- Wider area
- Hertfordshire
- Prices
- Quoted for your roof
- Report
- Written, with photos, emailed to you
- When we survey
- Weekdays and weekends
- Cover
- Professional indemnity and public liability
- Phone
- 07833 053749
- Last updated
- 27 October 2026
Rented homes, blocks and businesses
Freeholders and residents’ companies use a roof report to plan and budget, putting the urgent items at the top.
If the property is let, the agent or a tenant can let us in, at a time agreed in advance. Surveys run on weekdays and at weekends, which helps when tenants work during the week.
How the survey changes by roof type
Inverted and paved roofs
Paving and terraces cover the membrane. Whether it can be tested depends on the build-up.
Single-ply membranes
Many offices and units have single-ply roofs. Seams and penetrations are typical breach points.
What electronic leak detection looks like in Throcking
England has around 10,000 conservation areas and about 500,000 listed buildings. If your home is listed, changes that affect its special interest need listed building consent, and in a conservation area re-roofing in different materials may need permission, so check with the council. Across the South East, older homes tend to have slate or clay tiles, and many later ones concrete tiles, with flat-roofed extensions, dormers and garages common everywhere. Next to the main roofs there’s usually a flat roof somewhere, whether on an extension, a garage or a commercial unit.
Take a building like Freman College: a large flat roof with a good many outlets and rooflights has many places where a membrane can fail. The streets around a church such as Holy Trinity Church are frequently among the oldest in a place, and if you own one of the older houses nearby, flat-roofed rear additions and dormers added over the years are worth checking.
Throcking is about 6 miles north-east of Stevenage, in Hertfordshire. Houses, flats, blocks and commercial buildings in Throcking can all book electronic leak detection, with a written report and photographs every time. Our Hertfordshire coverage includes Throcking. Chelmsford is in our area too.
We survey roofs across the SG9 postcode area for electronic leak detection. Nearby, we also carry out electronic leak detection in Cottered (1 mile south-west), Chipping (1 mile north-east), Buntingford (2 miles east), Aspenden (2 miles south-east) and Layston (2 miles east). Larger places within reach include Stevenage (6 miles south-west), Bishop's Stortford (11 miles south-east), Welwyn Garden City (12 miles south-west), Hitchin (9 miles west), Hoddesdon (14 miles south) and Hatfield (15 miles south-west).
Landmarks near Throcking
Nearby you’ll also find Clothall Castle (4.1 miles west). Not far away are Hawkins Wood.
Other services in Throcking
Honest limits
Without opening up the roof, some things stay hidden, and that sets some limits:
- Leaks from walls, copings or rooflights
- Repairing the breaches (that is for your roofer)
- Sections we can’t safely access
Not sure which survey suits your roof? You can ring 07833 053749 or email us and we will tell you. What our survey covers.
Roofs we survey in Throcking
- Liquid-applied waterproofing
- Commercial flat roofs
- Single-ply roofs
- Flat roof membranes
- Roof terraces and balconies
- Green roofs
What affects the price in Throcking
Every roof is different, so prices are confirmed before booking. This is what makes a difference:
- Roof area
- How complicated the roof is, with its valleys, chimneys and parapets
- Commercial roofs and larger buildings
- Any need for thermal images or a drone flight
All our prices include VAT. We quote electronic leak detection for each roof, as the method and time depend on the roof. You will know the price for the job before booking.
What to tell us when you contact us
When you call or email, these details help:
- Your postcode, so we can check access and travel
- What kind of property and roof it is
- Pictures of the roof from a safe spot, if you have them
- Any deadline, like an exchange date
To arrange a survey, ring 07833 053749 or email us with the address and what you’d like to know about the roof. You’ll know the price before anything is booked.
What we do, step by step
The visit has one job: to look at the flat roof membrane as closely as is safe and record what we find. Everything we note and photograph goes into the written report. The visit normally takes as long as needed for the size of the roof and how it’s built, which we set out in the quote. In a small place like Throcking, access is typically the main thing to plan. Let us know about outbuildings, past repairs and any leaks you’ve noticed. Visits can be on weekdays, Saturdays or Sundays.
- We start by finding out what the roof is made of and where it leaks.
- We confirm whether the roof is suitable for electronic testing.
- The testing method is chosen to suit the membrane and build-up.
- Testing runs across the roof to locate breaches in the membrane.
- The breaches are recorded with photos in a report for your roofer.
Getting ready for the survey
- For flats, check roof access has been agreed
- Have keys ready for side gates, garages or roof access doors
- Gather any invoices or paperwork from past roof work
Book a survey
Getting a price is simple: just ring 07833 053749 or email us, let us know about the property and we’ll suggest the right survey. We confirm the price before anything is booked.
Advice
Throcking questions
Does a conservation area affect roof work in Throcking?
Start with Historic England’s list for listing and your council for conservation areas. It is worth checking before planning roof work, as both can affect what’s allowed.
Do you cover smaller places like Throcking?
Yes, smaller places are covered as well as towns. We work right across London and South East England. Just mention lanes, gates or anything else about the route when you book.
Can every flat roof be tested?
ELD does not suit every roof. Certain membranes are conductive, and some build-ups lack a suitable layer below. If your roof will not work, we’ll say so before testing.
How long will testing take?
It usually takes longer on a large roof than a small one, and the build-up of the roof makes a difference too.
Do you test for asbestos?
No. Asbestos surveys and sampling are not something we do. Where a material might contain it, such as old cement sheets on a building from before 2000, the report flags it, with a recommendation to have a specialist asbestos surveyor check before it is disturbed.
How do I arrange electronic leak detection in Throcking?
It is easiest to phone 07833 053749 or email us. Let us know the address and a little about the roof. We survey on any day of the week.
Will I get photos?
Yes. Photographs are part of every report.