Inspection guides
Drone roof inspections: what they reveal and when to book one
Understand what a drone roof inspection can reveal, what it cannot confirm, and how to brief an inspector for a useful property condition report.
Be in control of your property
We inspect your building from the air and give you a detailed report, tracking dashboard and 3D model.
Currently available in Europe
Get a permanent record of your building – and prevent expensive works.
01
We fly & inspect
1-2 operators complete a full exterior scan in half a day. No scaffolding, no ladders, no disruption to the household.
02
We assess
Every element — roof, facades, woodwork, gutters, chimneys, windows, stonework — is scored against photographic evidence.
03
You track
A private dashboard with your 3D model, dated photo archive with maintenance works and year-over-year comparison.
The dashboard
Your building, kept on file — properly.
From a full 3D model of your building to every roof slate, gutter and chimney, we capture the details that matter — so nothing changes without you knowing.
Check a sample report
A 3D model of your property
Orbit the building, zoom into a chimney flaunching or a valley gutter, and see exactly what the operators saw.
Per-element condition scores
Seven building systems, each scored 1–100, with the reasoning recorded alongside the imagery.
Dated photo evidence
Every facade and roof section photographed and dated, kept as a permanent record of the building.
Change alerts between scans
When a score drops or new damage appears, you are told which element moved and by how much.
Every year you don't look, the bill quietly grows.
Deferred maintenance is the most expensive way to own a large building. A defect caught early can cost a twentieth of the same defect once water has reached the structure.
€20x
Repair costs later vs. repair now
A defect caught early typically costs a twentieth of the same defect once water has reached the structure.
78%
Of period homes carry an unseen defect
Roofs, valleys, flashings and chimney heads — almost never visible from ground level or from inside.
€42,000
Average cost of a late-caught roof failure
Structural timber, ceilings, decoration and lost use of rooms, on a single elevation of a large house.
3 yrs
From hairline crack to structural repair
The usual window between a defect becoming visible from the air and it becoming a builder's job.
See the benefits
Most buildings are surveyed within 2-3 weeks of enquiry.
Small defects on large buildings do not stay small.
A cracked tile is a fifty-euro problem in March and a five-figure issue in November. On a large historic building, the failures that cost the most are almost always the ones nobody could see: a blocked valley behind a parapet, a hairline crack in flaunching, pointing washing out of a chimney on the weather side.
An annual scan catches those while they are still cheap. It also gives you something most owners never have — evidence. Dated, consistent, complete documentation that stands up with insurers at renewal or after a claim, with buyers during a sale, and with heritage authorities when consent depends on showing how the building has been maintained.
Insurance
Evidence at renewal and after a claim
Sale
A verified fabric history for buyers
Heritage
Documented maintenance for consents
From our inspection record
Certified operators
National drone licences held by both founders, with logged flight hours on heritage sites.
Fully insured
Public liability cover of €2m for every flight, documentation provided before we arrive.
Discreet on site
Two people, unmarked vehicle, no signage. Most households barely notice we were there.
Your imagery stays private
Encrypted storage, GDPR compliant, never published or shared. You can request deletion at any time.
Country Estate in The Netherlands. External inspection by Henry Wynaendts on 21 September 2026, supported by 36 detail photographs and an estate overview.
A raised chimney apron and an open-looking ridge fold were flagged for closer inspection. The photographs do not establish an active leak.
Selective pruning will expose concealed wall details. Inspect the newly visible areas before deciding on repairs.
FAQs
See an example report before you commit.
Get our sample PDF report — an external inspection of a country estate in The Netherlands, with condition scoring and prioritised findings — straight to your inbox.
The Focal journal
Practical advice for your property.
Costs & decisions
Drone roof inspection cost: what affects your quote?
Learn what drives drone roof inspection costs, how to compare quotes fairly and where better inspection evidence may reduce unnecessary maintenance spending.
Inside a report
How to read a property condition report: a real estate example
Walk through Focal’s Dutch estate condition report: understand the 63/100 overall score, priority findings, evidence references and maintenance actions.
Find out what your building is really telling you.
Send us the location and a rough size. We come back within 24 hours with a fixed quote.
Request a quote