Hertfordshire · London and the South East
Roof Leak Investigation in The Folly
Roof leak investigations across The Folly, with over 20 years’ experience behind it. Every survey ends with a written report and photos.
- Wet patches on loft insulation
- Damp underlay across a wide area
- Water marks that spread in wet weather
For landlords and managing agents
Roof problems in a rented home affect tenants as well as the building. A survey shows what needs attention, so you can plan the work with less disruption.
Landlords, agents and building managers in The Folly and across Hertfordshire can book any of our surveys. For a price for a let property or a block, call 07833 053749 or use the contact form.
Roof leak investigation in The Folly: what you get
Some ‘leaks’ aren’t leaks at all. In a badly ventilated roof space, condensation can form under the roof and drip, and the stains look much like a leak. Knowing which it is means the right fix can be done, since the cure for one won’t solve the other. The pattern of the damp, the ventilation and the timing all help us decide. If you’re worried about wet patches high on an inside wall and water dripping from rafters or underlay, we can find out what’s behind it, whatever the roof.
In a village or hamlet like The Folly, older cottages and farmhouses frequently have roofs that have been patched over many years. That makes it hard to tell new damage from old wear, which matters if you’re thinking of an insurance claim. The report says what was seen and what it points to. Damp in old walls and timbers is slow to dry, so the sooner the cause is found the better.
If any part of the leaking roof couldn’t be seen safely, we say so in the report. You will know exactly what was inspected and what wasn’t.
- Place
- The Folly (AL4)
- Wider area
- Hertfordshire
- Prices
- From £150 inc. VAT
- Reports
- Written, with photos, emailed to you
- Appointments
- Weekdays and weekends
- Cover
- Professional indemnity and public liability
- Telephone
- 07833 053749
- Updated
- 27 October 2026
Prices for roof leak investigations in The Folly
When we price a survey, we consider:
- Commercial roofs and larger buildings
- Chimneys, valleys, parapets and other details
- Whether thermal imaging or a drone is needed
- Extra roofs, like extensions, dormers or garages
Roof leak investigation starts from £150, including VAT. The final price depends on how big and how high the roof is, access and which survey you book.
Booking your survey
If you can, have these to hand when you contact us:
- The property’s address and postcode
- Why you want a survey: buying, a leak, a storm or new work
- Any marks or damp showing indoors
- Access details, such as a loft hatch or a shared roof
Not sure which survey you need? It is easiest to phone 07833 053749 or use the contact form and describe the roof and why you want it surveyed. We’ll explain the options and the price.
Nearby places to The Folly
What else we do in The Folly
Wind, rain and roofs in The Folly
About 2 miles north-east lies Shaw's Corner, a reminder of how long the area around The Folly has been built on. Older roofs in the wider area can hide decades of patch repairs, so the detail matters, and a listed home or one in a conservation area may need consent for changes of material. Older houses in the South East often have slate or clay tile roofs, while many later estates have concrete tiles, and flat-roofed additions turn up almost everywhere. Each of these roof types has its own typical places for water to get in.
If you live in an older home near St Helen's Church, lead flashings, valleys and old chimneys are typical places for water to get in. If you look after a building such as St Helen's Church of England Primary School, water through a big roof can travel a long way before it drips, so the search covers more than the obvious spot. If you let a flat or house near Harpenden station, a tenant living with a leak needs the cause found, not just the stain painted over.
The Folly is about 2 miles east of Harpenden, in Hertfordshire. The Folly is one of many places we visit across Hertfordshire. We cover towns and villages across Hertfordshire, large and small. London is in our area too.
Every address in AL4 is covered for roof leak investigations, from the main roads to the quietest streets. If you need a roof leak investigation at a property on Folly Fields and Lower Luton Road or anywhere close by, we can help. Other places close to The Folly include Lea Valley (1 mile west), Amwell (1 mile south), Mackerye End (1 mile north-west), Blackmore End (1 mile north) and Batford (1 mile west). Within a short drive, we also cover Watford (11 miles south), Hemel Hempstead (8 miles south-west), Stevenage (8 miles north-east), St Albans (5 miles south), Welwyn Garden City (5 miles east) and Hitchin (9 miles north).
Around The Folly
In The Folly, that means homes and buildings near Sir John Lawes School and The Cherry Trees pub, among other places. The Folly’s nearest station is Harpenden station, roughly 2 miles west. Nearby you’ll also find St Albans City Hospital (4.2 miles south) and Harpenden Museum (2.2 miles west). Green spaces nearby include Wheathampstead Local Nature Reserve.
What happens on the day
Once we’ve finished looking, we write up our findings in a report with photographs, sent to you by email. On timing, most surveys take about 1–2 hours at a typical home, while a commercial roof takes nearer three to four hours. Somewhere as small as The Folly, access is frequently the only tricky part. Mention any outbuildings, barns or garages you want included, and anything about the roof you already know. Weekday and weekend visits are available.
- You get in touch with details of the leak and any photos.
- We check the stain, the ceiling and the loft above it.
- Outside, we look at every likely route in.
- We use moisture detection, and thermal imaging where it is useful.
- We email a report with photographs, the likely entry point and recommendations.
How to prepare
- Have keys ready for side gates, garages or roof access doors
- If it is not your property yet, arrange access through the agent
- Make a note of anything you’d like us to look at
Getting a price
Buyers should book once an offer has been accepted, so there’s time to use the report before exchange. Otherwise, simply call 07833 053749 or email us whenever suits you.
Related advice
Roof by roof
Lead flashings
Wherever a roof meets a wall or stack, a flashing keeps rain out. We check for lead that has lifted, split or slipped.
Flat roof upstands and outlets
The upturned edge of a flat roof covering keeps water out at walls. If it is too low, cracked or poorly dressed, water gets behind it.
Leave it or get it looked at?
Lingering damp encourages mould on ceilings and walls. It’s unpleasant, and it’s harder to deal with once established. Finding the leak comes first. Older cottages and farmhouses around The Folly can have roof timbers that have been there a very long time, and water through a failed covering can rot timber if it’s left.
Prices start from £150, including VAT. Packages run from Basic at £150 through Standard at £250 to Premium at £400, with VAT included, and we’ll tell you which fits.
Why choose Independent Roof Survey in The Folly
- Drone and thermal imaging surveys available
- A sub-250g drone, flown with a CAA Flyer ID and Operator ID
- PI and public liability insurance
- Package prices that include VAT
What you can safely check yourself
Your own check is a good start, but it isn’t a survey. You will not see flashings, valleys or the backs of chimneys properly from ground level, and those are details a survey looks at closely.
Look up at the roof after a storm, from the ground: broken slates or tiles in the garden, gaps along the ridge or loose lead are signs to note. Do not go up yourself.
Common questions in The Folly
Is my home in The Folly listed or in a conservation area?
The council and Historic England’s list are the places to check. It’s worth checking before planning roof work, as both can affect what’s allowed.
Do you cover The Folly?
We do. The survey and report are the same in The Folly as anywhere else, and visits run on weekdays and weekends.
Are you insured?
We are covered by professional indemnity and public liability insurance.
What happens next?
The report arrives by email, with photos and clear recommendations. With Standard there’s a follow-up consultation; with Premium, an in-person consultation, so you can talk the findings through.
What will the report tell me?
It explains what we saw, what it means and what we’d suggest, backed by photographs. Anything we couldn’t see safely is noted too.
How experienced are you?
Over 20 years and more than 5,000 surveys.
Is this an asbestos survey?
No. Asbestos surveys and sampling are not something we do. The report may flag materials that could contain asbestos on buildings built or refurbished before 2000, with a recommendation to have a specialist asbestos surveyor check before it is disturbed.