The Steep Valley Corridor
From Abertillery’s vertical streets to Brynmawr’s narrow accesses.
1. Slope Assessment
We calculate vertical drop between front and back. If it’s >8m, scaffolding is unsafe and costly.
2. Arrive & Pay
Accept the quote to book. To prevent fraud, payment is only taken upon arrival once flight safety is confirmed.
3. The Hidden Valley Scan
We use quiet drones to inspect the valley gutter between terraces—seen by no human since the 1970s.
4. Receive Data Package
You receive a PDF Condition Report and a link to every raw image & 4K video to show your insurer or roofer.
The "Hidden Valley" Guarantee
If your property has a vertical drop steeper than 30 degrees, scaffolding is not viable. We provide the only safe inspection method. If we cannot fly due to terrain, you do not pay a penny untill we reschedule.
*Disclaimer: Rescheduled visits are billed at the original quoted rate.
THE SCAFFOLD KILLER
No more £1,200 access fees.
In Abertillery, some houses have a **30ft vertical drop** from front door to back door. Scaffolding costs £1,000+ and takes days to erect—often requiring road closures.
Our drone eliminates all that risk and cost:
- ✅ Hidden Valley Gutter: Inspect the critical junction between two terraces
- ✅ Rear Upper Chimneys: See stacks invisible from ground level
- ✅ Drainage Mapping: Identify failed falls on steep rear roofs
Abertillery: Where the Back Door Is Three Storeys Up
The Ebbw Fach housing stock is the hardest access we work, and the cheapest to fly.
Stacked Ranks on a Steep Gradient
The terraces climbing out of Abertillery towards Cwmtillery and Six Bells were cut into the hillside, so the rear elevation frequently stands three storeys clear while the front sits at pavement level. Scaffolding founded on that gradient is the single largest cost in a valley roof repair. A flight removes it from the equation.
High Rainfall, Long Wet Spells
The Ebbw Fach valley collects weather. Persistent rain rather than dramatic storms is what finds the weak point in an Abertillery roof, working into open laps, perished lead and cracked pointing over weeks at a time. We photograph every plane at zoom so you can see which of those is genuinely letting water through.
Chimney Stacks on Exposed Gables
Valley terraces put tall stacks on the most exposed corner of the building, and the mortar fails long before the brick does. From above we can read the flaunching, the pot seatings and the flashing line — the three places a stack leaks — with no scaffold tower and no roof ladder.
A Fixed Fee and No Sales Pitch
We do not repair roofs in Abertillery or anywhere else, so we have no reason to make yours sound worse than it is. The fee is identical for a clean bill of health and for a serious defect, and you keep every image and the 4K video to brief whichever roofer you choose to appoint.
Owning a Terrace in Abertillery?
"The roofer said it's impossible to inspect the back."
Narrow rear accesses and extreme slopes make traditional inspections unsafe or impossible. Standard surveys miss the critical valley gutter between terraces.
The Solution: Aerial evidence of the "Hidden Valley" without setting foot on your property.
Insurance & Storm Damage
Insurers demand proof of damage on hard-to-access properties.
- ✅ HD Evidence: 4K photos of slipped tiles on rear upper roofs
- ✅ Date-Stamped Data: Proof of when the damage occurred
- ✅ Independent Validation: We don't profit from the repair
Typical Defects We Expose
Hidden Valley Gutter Leaks
Blocked or split gutters between terraces cause chronic damp. Invisible from ground.
Rear Upper Chimney Erosion
Mortar failure on chimneys only visible from above.
Steep-Roof Drainage Failure
Poor falls cause water ingress on rear pitches.
Upper Soffit Rot
Driving rain penetrates eaves on exposed upper levels.
Abertillery Steep-Slope Intelligence
Our drones are calibrated to spot specific defects common to the Steep Valley Corridor:
- Abertillery Terraces: Hidden valley gutters between stacked homes
- Brynmawr Access: Narrow rear lanes with zero ground visibility
- Blaina Slopes: 45°+ rear pitches with drainage failure
- Llanhilleth: Upper-level chimney stacks on multi-storey builds
Tracing Leaks & Leak Detection in Abertillery
Finding where the water actually gets in, before anyone books a repair.
The Stain Is Not the Leak
Water entering at a cracked stack or an open lap runs along battens and rafters before it shows on a ceiling, so the damp patch is rarely under the failure. We photograph every roof plane, the hidden valley gutters between the stacked terraces and the rear elevation you cannot see from the lane, then match the entry point to where the staining appears inside.
Non-Invasive Trace and Access
Traditional trace and access means scaffolding, lifting tiles or opening a ceiling to find the source. On an Abertillery terrace where the rear stands three storeys clear, that access is the expensive part of the job. A twenty-minute flight covers the same ground with zero disturbance to the building and nothing to reinstate afterwards.
Evidence Your Insurer Will Read
Most escape-of-water and storm claims stall because nobody can show the cause. You receive a dated written report, every raw image and the 4K video, which is the format loss adjusters and roofers both work from. We do not carry out repairs, so the findings are not a quotation dressed up as a diagnosis.
Where Abertillery Roofs Usually Let Water In
- Shared valley gutters between stepped terraces, blocked or perished at the lap
- Chimney flaunching and pot seatings on exposed gable stacks
- Lead soakers and back gutters behind rear dormers and outriggers
- Slipped or nail-sick slates on the steep rear pitch, invisible from ground level
- Failed abutment flashing where a two-storey rear meets a single-storey extension
Abertillery Pricing
Base Rate (Zero Travel Cost for NP13/NP23 Postcodes).
Basic Check
£145*
"Is my rear chimney okay?"
- • 15 Minute Flight
- • Raw Images Provided
- • Single issue check
*No travel fees for NP13/NP23
Full Condition Report
£265*
Most Popular.
- • Full Roof & Valley Gutter Scan
- • PDF Condition Report
- • Defect Highlighting
- • For Standard 3-Bed Terrace
*Zero travel cost for NP13/NP23 postcodes
Steep-Slope Audit
From £345
Multi-Terrace | Hidden Valley Mapping
- • Full Valley Corridor Scan
- • Party-Wall Documentation
- • Insurance-Grade Evidence
*No hidden travel fees for NP13/NP23 postcodes.
Pilot Certification & Insurance
Your assurance for a safe, compliant, and discreet survey.
CAA Operational Authorisation
UK CAA A2 Certificate of Competency (A2 CofC).
- ✅ Fully Insured: £5M Public Liability.
- ✅ Steep-Slope Certified: Specialized flight logic for extreme inclines
- ✅ GDPR Compliant: Data managed to strict ICO protocols.
NP13/NP23 Steep Corridor
Serving the most vertically challenging housing in Wales.
- 📍 Abertillery Town
- 📍 Brynmawr Heights
- 📍 Blaina Slopes
- 📍 Llanhilleth
- 📍 Nantyglo
- 📍 Six Bells
Steep-Slope Materials
Book Your Abertillery Survey
Mention "Hidden Valley" or "Steep Slope" for priority.
Abertillery Drone Surveys: NP13 Questions
What Abertillery, Six Bells and Cwmtillery residents ask.
Can you really inspect the back of my terrace without scaffolding?
Yes, and it is the reason most Abertillery calls come in. The drone flies the rear elevation from open air, so the drop behind the house becomes irrelevant. You get the view a roofer would get from a scaffold, at a fraction of what the scaffold alone would cost.
The street is very narrow. Where do you fly from?
Usually the pavement, a front garden or a nearby open space. We need a small clear launch area and a line of sight, not a working platform. On the tighter ranks around Six Bells we plan the launch point before arriving.
Will you tell me whether I need a new roof or just a repair?
We tell you what is there and show you the evidence: which slates have moved, where the lead has failed, what condition the stack is in. We do not price repairs, which is exactly why the report carries weight when a roofer says the whole covering must come off.
Do you work for landlords with several Abertillery properties?
Regularly. Several properties on one visit share the mobilisation, and you end up with a consistent set of condition reports all carrying the same date — useful for planned maintenance budgeting rather than reacting to each leak in turn.
How far is Abertillery from your base?
It is a short run from our Pontypool NP4 base, and the exact travel figure for your postcode appears in the quote form on this page before you commit to anything.