Drone roof inspection: Price, process, and when it pays off

A drone roof inspection costs from 3,000 kr and takes a morning. Scaffolding costs 10,000–50,000 kr and takes 1–2 weeks. But drone inspection isn't always the right choice. Here's when it makes sense.

Traditional roof inspection vs. drone inspection

Let's start with a direct comparison:

Scaffolding still has its place — if repairs need to be carried out anyway, scaffolding will be needed regardless. But for inspection alone, it's rarely the most sensible solution.

What can a drone inspection uncover?

With a 48-megapixel camera and an experienced operator, we can document damage that is often overlooked during a manual inspection from the ground:

• Cracks and missing roof tiles — visible in high-resolution images, even from a distance
• Blocked gutters and downpipes — leaves, moss, and debris preventing drainage that can cause water damage
• Moisture damage and discolouration — dark spots, algae growth, and discolouration indicating moisture beneath the surface
• Chimney and flashing damage — cracks in joints, loose flashings, leaning chimneys
• Solar panel defects — hotspots and defective cells visible with thermal camera
• Insulation deficiencies — with a thermal camera, we can see heat loss invisible to the naked eye

The last point deserves extra attention.

Thermal inspection — the extra layer

A thermal camera mounted on the drone shows differences in surface temperature. It reveals things the eye can never see:

• Heat loss — missing or damaged insulation appears as warm areas on the roof in winter
• Moisture beneath the surface — water in the roof structure retains heat differently from dry material, and it shows clearly in thermal imaging
• Defective solar cells — a defective cell heats up more than the surrounding ones, appearing as a hotspot

Thermal inspection is particularly relevant for energy renovation, insurance cases, and annual operational checks of solar panel systems.

When is drone inspection the right choice?

Here are the situations where it makes the most sense:

• Commercial buildings and warehouses — large, flat roofs that are impractical to inspect manually. A drone covers the entire area in under an hour.
• Housing associations — many buildings, routine checks. A drone can inspect 10–15 roofs in a single day — at a fraction of what individual scaffolding projects would cost.
• Insurance cases after storms — quick documentation of storm damage. We can often be on site the same day or the next day.
• Energy renovation — thermal scanning of the entire roof, identifying exactly where insulation is failing.
• Solar panel systems — defect detection without dismounting panels or putting people on the roof.
• Hard-to-reach buildings — steep roofs, tall buildings, listed buildings where scaffolding is unwanted or not permitted.

When is drone inspection not enough?

Honest assessment — there are situations where it doesn't make sense:

• If repairs are needed anyway — then scaffolding will be needed regardless. However, a drone inspection beforehand can specify exactly what needs to be done, so the tradesperson knows what they're going up to.
• If the damage is already located — if you know exactly where the problem is and it just needs fixing, an inspection is unnecessary.
• Dense urban areas with flight restrictions — rare, but it happens. In certain urban areas or near airports, there may be restrictions. We always clarify this in advance. Read more about drone rules in Denmark.

What does it cost?

A standard roof inspection starts from 3,000 kr excl. VAT. This includes inspection and high-resolution images.

Add-ons:

• Thermal scanning — for buildings where moisture, insulation, or solar panels are relevant
• Extended report with drawings and marking of damage areas
• Larger projects (housing associations, industrial facilities) — priced individually

For comparison: scaffolding for a standard detached house typically costs 15,000–25,000 kr. For that price, you could get 5–8 drone inspections.

What do you receive?

• High-resolution images (48MP) of the entire roof from all relevant angles
• Thermal images (if purchased) with marking of anomalous areas
• Description of findings, marking of damage, and recommendations for repair
• Delivery format: PDF + original images via download link
• Delivery time: within 3–5 business days. For urgent cases (storm damage), we can often deliver faster.

The report is designed so you can share it directly with your tradesperson, insurance company, or board.

Inspect your roof from the air

We hold an A2 certificate from the Danish Transport Authority, commercial liability insurance, and experience with everything from detached houses to industrial facilities. We also offer drone photography for marketing, if you need aerial photos of your property in addition to the inspection. Contact us with a description of your building, and you'll have a free quote within 24 hours. No obligation.