CF83's Local Heritage Specialists
High-resolution drone audits for mountain-shadow, riverside & heritage properties.
1. Get Free Quote
Submit the form. We are based locally in CF83, so residents pay Zero Travel Costs.
2. Arrive & Pay
Accept the quote to book. To prevent fraud, payment is only taken upon arrival once flight safety is confirmed.
3. The 20-Min Scan
We use high-stability drones to scan complex heritage roofs. Ideal for shaded properties in Machen or riverside access in Draethen.
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 "Micro-Climate" Guarantee
The Machen micro-climate can be unpredictable. If we arrive and cannot fly due to sudden weather changes or low cloud cover from the mountain, you do not pay a penny until we reschedule .
*Disclaimer: Rescheduled visits are billed at the original quoted rate.
Heritage-Preserving Inspections.
Why risk scaffolding damage to historic fabric when you can inspect from the air?
Installing scaffolding around delicate heritage cottages in Machen or Draethen can pose risks to the property itself.
Our drone survey provides a safer, non-invasive alternative:
- ✅ Evidence for Insurance: Validation for storm damage claims with 4K photos.
- ✅ Conservation Compliance: Non-destructive inspection reports for heritage authorities.
- ✅ Trace and Access: Find the exact entry point of a leak in minutes.
Machen & Draethen: Cottages in a Mountain's Shadow
Limestone country, low winter sunlight and period fabric along the Rhymney corridor.
Permanent Shade, Permanent Moisture
Machen sits tight under the mountain and the north pitches see very little sun through the winter. Moss and lichen never fully dry out, which loads the slate, holds water against the laps and accelerates freeze-thaw. It is the single most common finding here, and it is impossible to grade accurately from ground level.
Lime Mortar and Rubble Stone
The older cottages through Machen and Draethen are rubble stone with lime mortar and thick slate, and they fail differently from brick and cement: joints erode, water tracks through the wall rather than the roof, and inappropriate cement repairs trap moisture inside. We photograph the ridge, verges and abutments closely enough to tell which mortar is which.
Quarry Dust and Gutter Siltation
Local limestone working puts fine dust into the air, and it settles in gutters, valleys and behind slates. A silted gutter overflows at the fascia and rots the timber behind it. From above we can see how much material is actually sitting in each run — not something you can judge from a ladder at one corner.
No Repair, No Referral
We are not roofers, stonemasons or builders, and we take introduction fees from none of them. The fee for a Machen survey is fixed before we arrive and does not move with what we find, which is what makes the report usable as evidence rather than as a sales document.
Buying or Selling in CF83?
"The survey flagged a potential roof issue."
Banks often demand a "Specialist Roof Report" before releasing funds on heritage properties. Standard surveys often can't see high, complex roofs properly.
The Solution: We provide the high-level evidence your lender requires to lift the retention.
Insurance Claims & Heritage Weather
If you are claiming for "Storm Event" damage on a heritage property, your insurer will demand proof that the damage is recent and not just "wear and tear" accelerated by the local micro-climate.
- ✅ HD Evidence: 4K photos of fresh damage.
- ✅ Date-Stamped Data: Proof for your claim.
- ✅ Independent Validation: Unbiased reports.
Typical Defects We Expose
Damaged / Slipped Tiles
Identify slipped or missing slates causing water ingress. Critical for Trace and Access on heritage properties.
Chimney Stack Pointing
Check for lead flashing issues and cracked lime mortar joints common in CF83's heritage builds.
Blocked Guttering Check
Spot limestone dust accumulation and vegetation growth from above.
Fascia / Soffit Issues
Identify water damage and "Riverside Rot" on wooden fascia boards.
CF83 Housing Intelligence
Our drones are calibrated to spot specific defects common to the Machen/Draethen area:
- Mountain Shadow Micro-Climate: Identifying persistent moisture, moss growth, and lichen loading caused by reduced sunlight.
- Limestone Dust Accumulation: Detecting siltation in gutters and valleys from the local geology.
- Heritage Fabric Deterioration: Checking for lime mortar erosion and stone degradation on period cottages.
- Riverside Drainage: Inspecting gutter slopes and drainage paths for "Riverside Rot" prevention.
Machen & Draethen Pricing
Base Rate (Zero Travel Cost for CF83 Postcodes).
Basic Check
From £145*
"Is my chimney okay?"
- • 15 Minute Flight
- • Raw Images Provided
- • Single issue check
Full Condition Report
From £265*
Most Popular.
- • Full Roof & Chimney Scan
- • PDF Condition Report
- • Defect Highlighting
- • For Standard Heritage Cottage
*Plus any applicable conservation area surcharges
Estate Agents
Volume
Property Management.
- • Marketing Photos
- • Roof Reports
- • Pre-Purchase Surveys
*Pricing based on standard residential properties. Heritage building surcharges may apply.
Pilot Certification & Insurance
Your assurance for a safe, compliant, and discreet survey.
CAA Operational Authorisation
UK CAA A2 Certificate of Competency (A2 CofC) for operations near people and property.
- ✅ Fully Insured: £5M Public Liability.
- ✅ Discreet Operation: Quiet, small drones suitable for residential areas.
- ✅ GDPR Compliant: Secure data management.
CF83 Roof Inspections
Serving Machen, Draethen, Graig-y-Rhacca & The Western Valleys. Independent assessments you can trust.
- 📍 Machen Village
- 📍 Draethen
- 📍 Graig-y-Rhacca
- 📍 Rudry
- 📍 Lower Machen
- 📍 Waterloo
Common Problems We Identify
Book Your CF83 Survey
Select your package below.
Machen Drone Surveys: Rhymney Corridor Questions
What Machen, Draethen, Rudry and Trethomas residents ask.
Is moss actually a problem, or just cosmetic?
In Machen it is frequently structural rather than cosmetic. Heavy growth holds moisture against the slate, adds weight and lifts the tails so water gets under the lap. From above we can tell you whether it needs cleaning, whether slates have already moved, or whether it genuinely does not matter.
Do you understand traditional lime-mortar buildings?
They are a large part of the local stock, so yes. We record what is there in high resolution — joint condition, previous cement pointing, slate type and thickness — so a conservation-minded builder can specify properly rather than defaulting to modern materials.
Can you survey a cottage with no drive and restricted access?
Yes. We need a small clear launch area and a line of sight, not vehicle access to the building itself. On the narrow lanes around Draethen and Rudry we identify a suitable launch point before the visit.
Do you cover Rudry, Graig-y-Rhacca and Bedwas too?
Yes, along with Machen, Draethen, Trethomas and the Rhymney corridor generally. Travel from our Pontypool base is calculated for your postcode in the quote form on this page.
Will the drone disturb livestock or horses nearby?
We plan for it. On the smallholdings around Machen and Draethen we hold a sensible distance from animals, choose an approach that avoids low passes over paddocks, and will stop and reposition if stock appear unsettled.