Drone Leak Inspection in BC

What is drone leak inspection?

Drone leak inspection uses a remotely piloted aircraft equipped with a thermal (infrared) camera to scan elevated or large surfaces for leak signatures from the air. The drone flies a planned path over the target, captures both thermal and visual imagery, and the data is analyzed for temperature anomalies that indicate moisture intrusion — wet insulation under a flat roof, water tracking through a parapet, leaks at cooling tower fans, hot spots on a solar array indicating water ingress.

It’s the right call for jobs where the alternative is hazardous or impractical: walking a 5,000 m² commercial roof in 30-minute sweeps with a handheld thermal camera, setting up scaffolding to inspect a parapet wall on a six-storey building, sending a tech up to a cooling tower platform that hasn’t been touched in years. Drones make those inspections fast, safe, and complete. They also create a permanent visual record that’s easier to share with insurers, contractors, or strata councils than verbal descriptions of what one tech saw.

AnyLeak has run drone inspections across BC since the technology became practical for commercial use. Our pilots hold current Transport Canada Advanced RPAS certifications, we carry commercial drone liability insurance, and we follow airspace rules and weather minima rigorously.

How drone thermal inspection works

The thermal physics, from altitude

Same principle as ground-based thermal imaging: moisture changes the thermal mass of building materials, and an IR camera reveals the resulting temperature pattern. From altitude, that pattern is often easier to read because the entire roof is visible at once and patterns that span large areas (like a saturated insulation zone) jump out clearly. The thermal payload on our drones is calibrated for building diagnostics, with resolution sufficient to distinguish leak signatures from environmental variation.

Flight planning and image capture

A drone inspection starts with a flight plan. We use planning software to set the path, altitude, image overlap, and camera angle so the entire target area gets captured with consistent coverage. Typical altitudes are 30–60 metres above the roof, depending on roof size and resolution requirements. The drone captures thermal images plus simultaneous visual (RGB) images so each thermal anomaly can be paired with what’s actually there in normal light.

Analysis and reporting

After the flight, the images are processed. Thermal anomalies are flagged, paired with visual context, and located on a roof plan. The final report includes annotated thermal images, narrative interpretation, severity grading, and recommended next steps. For larger commercial roofs, we sometimes deliver an interactive thermal map that a roofing contractor can use to plan repairs.

When drone inspection is the right call

• Large commercial flat roofs. Anything over about 1,000 m² benefits from aerial coverage. Faster than walking, complete coverage, no foot traffic on a delicate membrane.
• Multi-tenant warehouse, retail, or industrial complexes. Roof systems spanning multiple buildings or roof zones. Drone covers them in one flight.
• Parapets and elevated structures. Walls extending above the roof line, often the source of moisture intrusion. Hard to inspect from below; easy from the air.
• Cooling towers, mechanical platforms. Elevated equipment with restricted access. Drone shows leaks and corrosion without climbing.
• Solar arrays. Roof-mounted PV arrays can hide leak sources beneath panels. Aerial thermal sees through that.
• Pre-purchase or insurance inspections. Documentation-grade imagery of an entire roof for due diligence.
• Post-storm roof surveys. Rapid assessment of damage across a campus or commercial portfolio.

Drone is less commonly the right call for single-family residential leak detection — usually a ground-based method like acoustic or interior thermal finds the leak faster and cheaper.

Real-world examples from BC properties

Multi-tenant warehouse complex in the Fraser Valley

Property management reported leaks across multiple tenant spaces in a four-building warehouse complex. Walking each roof individually would have taken a full crew most of a day per building, with thermal cameras producing piecemeal coverage. A single drone flight covered all four roofs in about 90 minutes, captured thermal patterns showing five distinct wet zones across the buildings, and produced an annotated report. The roofing contractor was able to plan all repairs from the report in one trip.

Heritage commercial roof in Vancouver

An older downtown commercial building had a complex multi-tiered roof with parapets, decorative cornices, and limited safe walking surfaces. The property manager wanted a thorough leak inspection before negotiating an insurance renewal. We flew the building in two passes; the drone captured the entire envelope including parapets that would have required scaffolding to inspect from the ground. Thermal showed two active leak zones — one at a cornice flashing, one near a roof drain — both repaired before the renewal.

Solar array on a Vancouver Island industrial roof

A solar-equipped industrial roof showed performance drops on certain panels. The owner suspected water ingress under the array but couldn’t inspect without removing panels. We flew a thermal mission over the array at an angle that imaged the substrate between panel rows. Three wet zones showed up — one was traced to a damaged junction box, two to membrane breaches under the array. The solar contractor and the roofing contractor coordinated repairs from a single report.

Our process, step by step

1. Free phone consult. (604) 269-5325. We’ll ask about the property, the target area, what’s prompting the inspection, and any airspace considerations (proximity to airports, controlled airspace).
2. Flight planning. We confirm airspace authorization, plan the flight path and altitude, schedule for weather conditions that favour thermal.
3. Pre-flight checklist. Drone, batteries, payload, weather, NOTAMs, ground crew. Standard commercial pre-flight procedure.
4. Flight and capture. Automated or manually-piloted path over the target. Thermal and visual images captured.
5. Analysis. Images downloaded and processed. Thermal anomalies flagged, paired with visual context.
6. Reporting. Annotated images, narrative, roof plan markup if available, recommended actions.
7. Handoff. Report delivered to property manager, owner, roofing contractor, or insurer as needed.

Drone equipment and payloads

• Commercial-grade drone platforms with sufficient payload, flight time, and weather resistance for BC conditions.
• Calibrated thermal imaging payloads — FLIR or equivalent — with building-diagnostic resolution and temperature range.
• High-resolution visual cameras for context pairing with thermal images.
• Flight planning and image processing software for path automation and post-flight analysis.
• Transport Canada Advanced RPAS certification on every pilot operating commercial flights.
• Commercial drone liability insurance.

Cost & our “no detection, no charge” policy

Drone inspection costs vary based on roof area, complexity, and the depth of reporting needed. Small commercial roofs are often in the few-hundred-dollar range; large multi-building campuses with detailed reporting run higher. The cost-per-square-metre is significantly lower than ground-based inspection at scale, which is why drone is the standard for large commercial roofs.

For active leak detection work specifically (where we’re hired to find the leak), no-detection-no-charge applies. For documentation-grade inspections (pre-purchase, insurance, condition surveys) we quote a fixed price.

Service areas across BC

We provide this service across British Columbia. Priority booking across Greater Vancouver and the Fraser Valley — Vancouver, North Vancouver, West Vancouver, Burnaby, Surrey, Richmond, Coquitlam, Delta, Langley, Abbotsford, Chilliwack, Victoria, Nanaimo, Kelowna, Kamloops, and the rest of our BC service area.

Frequently asked questions about drone leak inspection

Related detection methods

• Acoustic detection — for pressurized line leaks indoors.
• Thermal imaging — ground-based thermal for interiors.
• Electronic detection — tracer gas for radiant and complex systems.
• Underground detection — buried mainlines.
• Pressure & tracer gas — combined method.