01Drone Window Cleaning
A tethered drone washes the glass, then rinses it with deionized pure water so it dries without spots. It reaches curtain walls, upper-floor windows and atriums without a lift, swing stage or rope team.
ZPRO cleans windows and façades from the air, so nobody works at height and your building stays open. We also do commercial drone video and façade inspections.
$5M liability insured · UAV insured · Transport Canada certified pilots
Answer four quick questions and we'll tell you how well drone cleaning suits your building. Every building still gets a free feasibility review before we quote.
Each one is planned for the specific building, its surfaces and the airspace around it. Below is what we do and the buildings each service suits best.
01A tethered drone washes the glass, then rinses it with deionized pure water so it dries without spots. It reaches curtain walls, upper-floor windows and atriums without a lift, swing stage or rope team.
02Low-pressure soft-wash removes algae, oxidation, road film and staining. We cover metal panels, ACM, stucco, concrete, stone, siding, canopies, soffits, signage and metal roofs, using a solution matched to each surface.
03We fly every elevation and the roofline to capture high-resolution photos and video. Use it to spot cracking, failed sealant, spalling and loose elements, with a written condition report, or as aerial footage for leasing, marketing and project showcases.
The same six steps on every job, from a single storefront to a hotel tower.
01We walk every elevation and note surfaces, glazing, height, obstructions, airspace and staging areas, then document the existing condition.
02We place a landing pad, cones and a marked ground perimeter on the working elevation, and move it as the work moves. A spotter watches it at all times.
03Water is filtered to deionized pure water for glass. For façades we choose a soft-wash solution that suits the surface and the landscaping below.
04A tethered drone, fed from the ground, works the building top-down in passes, one section at a time. The pilot and spotter stay on the ground.
05A pure-water rinse removes the solution and loosened grime. Glass dries without spots, with no squeegee lines.
06We check every elevation from the ground and from the drone. Any missed spot is redone on the spot, and you get a full before-and-after photo set within 48 hours.


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The ribbed metal panels on the service canopy were covered in black streaks and algae. We soft-washed the whole canopy by drone. Normally that means parking a boom lift in the service drive.
Reviews from managers who hired us for results, professionalism, safety, speed and low disruption.
"They cleaned our entire building envelope without a single lift or scaffold. Faster, safer, and with no disruption to our operations. The results speak for themselves."
Rope access, swing stages and boom lifts all work. They just put people at height and take up more of your building. Here's how they compare on what matters to property managers.
| ZPRO DroneTethered drone, crew on ground | Rope accessTechnicians on ropes | Swing stageSuspended platform | Boom liftAerial work platform | |
|---|---|---|---|---|
| Setup | Minimal Landing pad, ground station and tethered water line. Typically 15–20 minutes per setup location. |
Moderate Roof anchors inspected, lines rigged for each drop, and re-rigged as the crew moves along. |
Heavy Davits or outriggers, stage assembly and roof load checks, all before cleaning starts. |
Moderate Machine delivery, positioning and outriggers, repeated for every bay. |
| Safety exposure | No one at height Pilot and spotter stay on the ground the whole time. |
High Technicians are suspended at height for the whole job. |
High Workers on a suspended platform, plus rigging risk on the roof. |
Elevated The operator works in a raised basket, with tip-over and overhead hazards. |
| Disruption | Low One small ground perimeter on the working elevation, moved as we go. Entrances stay open. |
Moderate Drop zones below every line. Workers outside residents' and guests' windows. |
High Roof rigging, a drop zone below, and a platform outside windows for days. |
High The machine takes up parking, sidewalk or landscaping, and may need lot or lane closures. |
| Access requirements | Simple A water source, standard power and a small staging area. Usually no roof access. |
Roof required Certified roof anchors and roof access are needed. |
Roof + engineering Roof access, davit bases or parapet clamps, and engineered tie-backs. |
Ground required Firm, level ground near the façade. Height is limited by the machine's reach. |
| Project time | Short Low- and mid-rise commercial buildings are usually done in one day. Towers are scheduled elevation by elevation. |
Varies Progresses drop by drop. Re-rigging and weather add days. |
Longer Setup and re-rigging between drops stretch the schedule. |
Varies Quick at low heights, but slows with repositioning and reach limits. |
When a drone isn't the right tool. Deeply recessed glazing, enclosed courtyards with no flight clearance, and detailed hand work such as hard-water etching restoration may still need rope access or a lift. If so, we'll say so in the feasibility assessment, before you spend anything.
We quote each building individually instead of promising a fixed percentage saving. These are buildings we've cleaned without lifts or rigging.

Signage, upper fascia and louvre panels.

Showroom façade, signage, service canopy and rear elevations.

Upper floors cleaned above an active hotel entrance.

Ribbed metal cladding and façade on a multi-storey dealership.
Removing people from height is the biggest safety gain, but it's only part of it. Every ZPRO job follows a written flight and safety plan.
$5,000,000 general liability coverage. We'll send a certificate of insurance to ownership, strata councils or your insurer on request.
Separate drone (UAV) insurance covers our aircraft and operations, on top of the general liability policy.
Our RPAS pilots hold Transport Canada pilot certificates. Every flight follows the Canadian Aviation Regulations (Part IX) and our written operating procedures.
You'll know what happens next at every stage, and nothing is booked until you approve the proposal.
Send the address, a few photos and what you need cleaned.
We review the height, surfaces, airspace and access remotely.
We walk the site, and can clean one section live at no cost.
You get the scope, schedule and one fixed price. No lift or scaffold rental.
Flight plan, exclusion zones and occupant notices are prepared.
We clean elevation by elevation, scheduled around your operations.
A walkthrough, then a before/after set and condition report within 48 hours.
The method stays the same. We adapt the scheduling, notices and safety setup to how each type of building operates.

No one outside residents' windows, and before/after records for council and depreciation reports.

Entrances stay open, no rooms come out of inventory, and work is scheduled around events and check-in.

Curtain walls and glazing cleaned before or after tenant hours.

Showroom glass, signage and canopies, with no lifts on your inventory.

Tall, wide metal-panel elevations and roofs, with loading docks kept running.
Booked for breaks and weekends. Campus-wide programs across many buildings.

Full vendor and safety documentation, insurance certificates and written reports.
Send us the address and a few photos. We'll confirm feasibility for free, usually within two business days.
Check my buildingThe questions property managers, strata councils and hotel GMs ask us most.
Our tethered system cleans everything from single-storey dealerships to high-rise hotel and residential towers. The drone is fed from the ground, so flight time isn't limited by an onboard tank. The maximum working height for your building depends on its surroundings and the local airspace, and we confirm it in the free feasibility assessment.
Yes. It's safer than traditional access because nobody works at height. Our Transport Canada certified pilots follow a written flight and safety plan, a spotter watches a marked ground exclusion zone, and we carry $5M liability plus UAV insurance.
No. Glass gets a final rinse with deionized pure water, which has no minerals, so it dries without spots or squeegee lines. Set-in hard-water etching or old mineral stains may improve without clearing completely. If we see that, we'll tell you before we start.
We don't fly. We check wind and gusts at ground level and at height before and during every job. If conditions go past our limits, we pause or reschedule at no cost to you. Rain and low temperatures are handled the same way.
In most cases, yes. Balcony glass, railings and moderately recessed windows can be cleaned by angling the spray. Deep recesses, covered balconies and glass behind overhangs need a closer look. We'll mark those areas in the assessment and tell you which method works best.
Glass and curtain walls, aluminum composite panels (ACM), ribbed and flat metal cladding, stucco and EIFS, concrete, brick, stone veneer, board-and-batten and vinyl siding, metal roofs, skylights, canopies, soffits, fascia and signage. Each surface gets a matched low-pressure soft-wash.
Every building is quoted on its own scope: height, glazing, surfaces and access. Proposals have one fixed price with no lift, scaffold or equipment rental added.
We also offer a price-match guarantee. Show us last year's written quote or invoice for the same scope and we'll match it and take 10% off. For 30 days after signing, we'll match any comparable written quote from a licensed, insured provider.
Setup at each location takes about 15–20 minutes. Most low- and mid-rise commercial buildings, such as dealerships, hotels and offices, are finished in a single day. Larger towers are scheduled over consecutive days, one elevation at a time. Your proposal will include an exact schedule.
No. Residents, guests and staff stay inside as normal. We just ask that windows on the working elevation stay closed and that balcony items are brought in. We'll give you a notice template to send out a week ahead, and only the small ground zone under the active work is closed off.
We carry $5,000,000 commercial liability insurance and separate UAV (drone) insurance, and our pilots hold Transport Canada pilot certificates. Certificates of insurance and our full Vendor & Safety Package are available on request.
Tell us about your building. A ZPRO service manager will review its feasibility and get back to you within two business days.
If we miss a spot, we come back and fix it free. If we can't deliver the agreed result, you don't pay.
Price-match guaranteeShow us last year's quote and we'll match it, then take 10% off.
A ZPRO service manager will review your building and contact you within two business days. Need something sooner? Call 604 652 7068.