Hertfordshire · London and the South East
Electronic Leak Detection in Holwellbury
We take a careful look at the flat roof membrane at your property in Holwellbury, with photographs and a written report.
- Water coming in under a flat roof
- Leaks through a covered membrane
- Waterproofing to test before it is covered
Electronic leak detection in Holwellbury
Electronic leak detection, or ELD, finds holes in flat roof waterproofing membranes. It works with an electrical current which can only get through the membrane at a breach. That lets us locate holes that are too small to see, so your roofer can repair them. The results come in a report with photos. If you’ve noticed new roofs to check before paving or planting and damage from equipment installers, we can find out what’s behind it.
In a small place like Holwellbury, 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. Rubber and GRP last longer, though trims and joints still need a look. Exposed edges are usually the first part of a flat roof to go.
The report doesn’t just list problems. For each finding, it explains what it is, why it matters and what we’d recommend, so you can plan your next steps.
- Where
- Holwellbury (SG5)
- Wider area
- Hertfordshire
- Prices
- Quoted for your roof
- Your report
- A written report with photos, by email
- Appointments
- Weekdays and weekends
- Cover
- PI and public liability insurance
- Telephone
- 07833 053749
- Last updated
- 27 October 2026
Why act early in Holwellbury
Water trapped under a membrane can soak insulation and decking. Finding the breach sooner limits that. Older cottages and farmhouses around Holwellbury can have roof timbers that have been there a very long time, where water from a failed roof can cause rot if it’s left.
For a price for your roof in Holwellbury, phone 07833 053749 or email us and let us know about the roof. We’ll confirm the figure before booking.
Why book us in Holwellbury
- Independent findings on the roof’s condition
- A written report with photographs
- CAA-registered drone operator (Flyer ID and Operator ID)
- 98% of customers satisfied
Read our cost guide and two real surveys.
Nearby places to Holwellbury
Other services in Holwellbury
What affects the cost of electronic leak detection
Every roof is different, so prices are confirmed before you book. This is what makes a difference:
- The shape of the roof and its details
- Roof area
- If the survey needs thermal imaging or a drone
- Building height and the viewpoints available
The cost of a survey depends on the roof: how big it is, how high it is, the number of separate roofs and how safely it can be seen. We quote electronic leak detection for each roof, as the method and time depend on the roof.
Booking your survey
Some details help us point you to the right survey and price. When you contact us, it’s useful to mention:
- Access details, such as a loft hatch or a shared roof
- Pictures of the roof from a safe spot, if you have them
- The reason for the survey, such as buying, a leak or storm damage
- The type of building and roof, such as pitched or flat
We survey roofs on any day of the week. To find a date that works for you, call 07833 053749 or email us with the address and the days you’d prefer.
Different roofs, different checks
EPDM rubber roofs
EPDM rubber roofs frequently last 30–50 years, but punctures and seam failures still happen.
Inverted and paved roofs
Inverted roofs have the insulation on top of the waterproofing, which affects testing.
Questions from Holwellbury
Does a conservation area affect roof work in Holwellbury?
You can check whether a building is listed on Historic England’s list, and your council can tell you if it is in a conservation area. If a 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.
Do you cover Holwellbury?
We do. The survey and report are the same in Holwellbury as anywhere else, and visits run on weekdays and weekends.
Does the report include photos?
Yes. Photos are part of every report, so you can see exactly what each finding refers to.
Is this a RICS survey?
No. We are experienced roof surveyors, and our survey covers the roof rather than the whole building. If you need a full building survey, you’ll need a RICS survey as well.
Are you insured?
We are covered by professional indemnity and public liability insurance.
Can you inspect my roof with a drone?
Yes, where it’s applicable. Whether we can fly on the day depends on the weather and the airspace rules, including flight restriction zones near airports. We’re a CAA-registered drone operator.
Do I need to be at home?
It depends on what we need to see. Inside the building and in the loft, we need someone to let us in.
Before and after the survey
A little preparation and a few simple habits help, both for the survey and for the roof itself. Some pointers:
- Ask contractors to protect the membrane
- Keep a note of leaks after rain
- Have roof specifications to hand
- Avoid repeated repairs without finding the cause
Once repairs are made, the roof can be tested again if you want to check them, where the roof still suits the method.
Limit foot traffic on flat roofs. Feet and dropped tools are a common cause of holes.
Flat roofs in Holwellbury
What can be done to an older roof may depend on listing or a conservation area. The council is the place to check, along with Historic England’s list. 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 on extensions, dormers, garages and business units are found alongside them almost everywhere.
If you look after a building such as Derwent Lower School, ponding and blocked outlets on a wide flat roof are worth catching before the next wet season. Take an older house close to Church of St Peter (C of E) at Corner with Holwell Road: any flat roof added at the back or on a dormer is likely to be far younger, and less durable, than the main roof. Landlords with a home close to Arlesey station may find that the flat roof over a let home is worth a look before it becomes a tenant complaint.
Holwellbury is about 3 miles north-west of Letchworth, in Hertfordshire. Holwellbury gets the same service as everywhere else we work: a careful look at whatever is safely visible, photographs and a clear written report. Our area takes in places right across Hertfordshire, from the larger towns to small villages. Milton Keynes is in our area too.
Postcode districts we cover here for electronic leak detection: SG5. We also cover the places around Holwellbury: Ickleford (2 miles south), Westmill (3 miles south), Bearton (3 miles south), Letchworth Garden City (3 miles south-east) and Walsworth (3 miles south-east). We also work in nearby towns such as Stevenage (8 miles south-east), Welwyn Garden City (14 miles south), Harpenden (13 miles south), Hitchin (3 miles south), Stotfold (3 miles north-east) and Baldock (5 miles east).
Local landmarks in Holwellbury
Typical jobs here are in homes near The Priory School and the streets around them. Holwellbury’s nearest station is Arlesey station, about 2.4 miles north-east of the centre. A little further out are Fairfield Hospital (2.1 miles east) and Wymondley Castle (4.6 miles south-east). Not far away are Arlesey Old Moat and Glebe Meadows and Markham's Hill.
How it works
The aim of the visit is simple: to see as much of the flat roof membrane as can be seen safely and record it clearly. Everything we note and photograph goes into the written report. The visit normally takes more time on a big roof than a small one, and the build-up of the roof makes a difference too. Somewhere as small as Holwellbury, access is often the only tricky part. Mention any outbuildings, barns or garages you want included, and anything about the roof you already know. Visits can be on weekdays, Saturdays or Sundays.
- You tell us about the roof and where water is showing.
- We check whether the membrane and build-up suit ELD.
- The test method is chosen to suit the roof.
- The membrane is tested and breaches are found.
- A report with photos shows where each breach is.
How to prepare
- Find any records of previous roof work
- Move anything stored under the loft hatch
- Leave side gates unlocked
Getting a price
We confirm the price for the job 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, call 07833 053749 or drop us an email.
Related advice
Surveys for landlords and agents in Holwellbury
Where a roof is shared: we need access agreed with the building owner or managing agent. Tell us about it as you book and we will plan the visit with that in mind.
Managing agents and residents’ management companies use roof surveys to plan maintenance. Recommendations are set out in order of urgency where relevant, which helps with budgets and planning.