Hertfordshire · London and the South East
St Albans Electronic Leak Detection
Electronic leak detection in St Albans, with over 20 years’ experience behind it. You get a clear report with photos.
- Holes around roof penetrations
- Breaches hidden under paving or planting
- Punctures from foot traffic or tools
Rented homes, blocks and businesses
Where a roof is shared: access has to be agreed with whoever owns or manages the building. Tell us about it as you book and we’ll plan the visit with that in mind.
Businesses and commercial landlords can book us too. Larger roofs take longer, and they’re priced for the size.
Electronic leak detection in St Albans
Not every flat roof suits electronic testing. Certain membranes conduct electricity, and some build-ups lack the layer the test needs below the membrane. If your roof is not suitable, we’ll tell you before any testing. Telling us what you know about the roof’s membrane and layers helps, including drawings, specifications or the roofer’s paperwork. It avoids arranging a test that can’t give results. We survey flat roof membranes, roof terraces and balconies and single-ply roofs, and the problems we are asked to look at most are breaches around outlets and penetrations and waterproofing to test before it’s covered.
Business premises in a place the size of St Albans often sit under big flat or low-pitched roofs. Across a large area, the point where water gets in is rarely obvious. Where the build-up allows, electronic leak detection can help pinpoint holes in the membrane. Outlets, upstands and laps are looked at closely, as that’s where membranes typically fail.
Nothing in the report is left vague: where something needs attention, it says so plainly, along with how urgent it is.
- Where
- St Albans (AL1, AL3, AL4)
- Region
- Hertfordshire
- Price
- Quoted for your roof
- Report
- Emailed report with photos and recommendations
- Appointments
- Weekdays, Saturdays and Sundays
- Insurance
- PI and public liability insurance
- Call
- 07833 053749
- Page updated
- 27 October 2026
Towns and villages near St Albans
Other services in St Albans
St Albans: your questions answered
How do I find out if my home in St Albans is listed?
You can check whether a building is listed on Historic England’s list, and your council can tell you if it’s in a conservation area. Listed building consent is needed for changes that affect a listed building’s special interest, and conservation areas can limit changes of roofing material.
Can you look at the flat roof of a hotel or office near St Albans?
Yes, we cover commercial roofs as well as homes. Access to the roof is sorted out with whoever manages the building before the day.
What happens after the survey?
You’ll receive the report by email, and what you do next is up to you: raise it with a seller, send it to an insurer, brief a roofer or share it with a managing agent.
What does electronic leak detection do?
A sound membrane blocks the test current, but a hole lets it through. That is how we locate breaches you cannot see.
Does the report include photos?
Yes. Photos are part of every report, so you can see each point for yourself.
Can you tell me if my roof has asbestos?
No. We do not sample or test for asbestos. 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’s disturbed.
What will the report tell me?
It explains what we saw, what it means and what we’d suggest, with photos throughout. It also says if any part of the roof couldn’t be seen safely, so you know exactly what was covered.
Practical tips
Most of what helps is simple and safe from the ground. Our suggestions:
- Ask contractors to protect the membrane
- Keep foot traffic on flat roofs to a minimum
- Have roof specifications to hand
- Record dates and spots where water appears
The report records each breach location with photos. Pass it to your roofer to repair the breach points.
Act on leaks quickly. Water under a membrane can spread.
What you can safely check yourself
After strong wind, take a look from the pavement or garden: broken slates or tiles in the garden, gaps along the ridge or loose lead are signs to note. Don’t go up yourself.
During heavy rain, look at the gutters from ground level or a window. Water spilling over the edge can be a sign of a blockage or a gutter that has dropped.
What electronic leak detection looks like in St Albans
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. Alongside them, flat-roofed extensions, dormers, garages and commercial units are common almost everywhere. There are several hotels within about a mile and a half of St Albans. If you look after one, a leak through a flat roof can put a room out of use.
For landlords with property near St Albans station, a flat roof over a rented flat is easy to forget until the tenant reports a leak. Anyone responsible for a site like Loreto College will know that large flat roofs, common on schools and other public buildings, need their outlets, upstands and coverings checked regularly. For businesses in and around places such as The Maltings, the flat roofs over shops and commercial units are worth checking before a leak, not after.
St Albans is about 20 miles north-west of London, in Hertfordshire. From houses to flats and shops in St Albans, the roof can be surveyed on a weekday or at the weekend. We cover towns and villages across Hertfordshire. Our London page covers surveys nearby.
Here we cover the AL1, AL3 and AL4 postcode area for electronic leak detection. If you need electronic leak detection at a property on Gabriel Square, Jubilee Square and Old London Road or a nearby road, we can survey it. Main roads around St Albans include the A414 and B651, which makes travel easy. We also cover Bernards Heath (1 mile north), Sopwell (1 mile south), St Stephens (1 mile south-west), Marshalswick (1 mile north-east) and Park Street (2 miles south). Within a short drive, we also cover Watford (7 miles south-west), Hemel Hempstead (6 miles west), Stevenage (13 miles north-east), Welwyn Garden City (7 miles north-east), Harpenden (5 miles north) and Hitchin (14 miles north). St Albans is one of the larger places we cover in Hertfordshire.
Near you in St Albans
Typical jobs here are in homes near Alban City School, The Horn pub and Verulam School and the streets around them. St Albans has its own railway station: St Albans station. Nearby you will also find St Albans Musical Museum (0.5 miles north-east) and The Maltings (less than half a mile west). For a walk, there is The Wick Local Nature Reserve and Verulamium Lake.
How the survey works
Every roof is different; as a rough guide, the survey takes a time that depends on the size of the roof and how it’s built, which we set out in the quote. If you have questions on the day, just ask. In St Albans, we survey everything from flats and houses to commercial buildings. Each building type brings its own access questions, from shared stairwells to locked plant rooms. Weekday and weekend visits are both available.
- We ask about the roof, its age, its membrane and where leaks appear inside.
- We check that the membrane and build-up suit electronic leak detection.
- The method depends on the membrane and what sits above and below it.
- We test the membrane and find where current is passing through it.
- You get a report showing where each breach is, for your roofer to repair.
Getting ready for the survey
- Gather any invoices or paperwork from past roof work
- Point out any leaks or damp patches
- Keep pets out of the way during the survey
Book a survey
If you’re buying, it is useful to book soon after your offer is accepted, so there is time to use the report before exchange. Otherwise, simply ring 07833 053749 or drop us an email whenever suits you.
Read more
Why get it checked now?
Leaks left running can wet the insulation and deck. Locating it early helps limit the damage. In flats, shops and offices in St Albans, a roof leak can reach more than one floor before it shows, where it damages ceilings, insulation and anything stored underneath. The earlier the cause is found, the smaller the job.
For a price for your roof in St Albans, phone 07833 053749 or drop us an email with the address and some details. The price is agreed before a date is set.
What you get with us
- Drone flown under a CAA Flyer ID and Operator ID
- Drones and thermal imaging where it applies
- Insured for professional indemnity and public liability
- Over 20 years’ experience
See our cost guide or our case studies.
What electronic leak detection does not cover
We only report what can safely be seen on the day, so some things are outside what a survey can do:
- How wet the insulation is
- Parts of the roof covered by fixed equipment
- Water entering through details rather than the membrane
If you are not sure which survey you need, phone 07833 053749 or drop us an email and we will give you a straight answer before you book. The full list of what we check.
Roof types and parts we check
- Green roofs
- Flat roof membranes
- Commercial flat roofs
- Liquid-applied waterproofing
- Single-ply roofs
- Roof terraces and balconies