HUTT vs ECOVACS: Which Robot Cleans Skylights in 2026?

On a vertical pane, gravity pulls water down and the robot keeps its seal easily. On a tilted skylight, the seal has to fight the slope, and losing it means a fall. Pressure matters more here; see the suction spec guide for the numbers that separate the two classes.

Should you buy a consumer brand for a commercial skylight?

Rarely. If your glazing is one small skylight over a stairwell and you clean it monthly, a consumer unit plus a tether can work at low risk. If it is an atrium, a mall, or anything over people, you want a platform with slope rating, water recovery, insurance and spares support. That is the line buyers cross.

What about the minor brands in these searches?

Names like Avinora and Keswo surface in the same searches. Treat them the same way: check slope rating, IP rating and spare-parts availability before price. A robot with no stated slope rating is a bet, not a purchase.

How do you decide in ten minutes?

• Vertical home glass, low risk: consumer brand is fine.
• Sloped or overhead glass: require a stated slope rating and IP rating.
• Glass over people: demand water recovery and a service contract.
• Mixed portfolio: buy one commercial platform, not three consumer units.

For the commercial side, the Lingdu Intelligence range (Lingkong K3, Lingyun Y3, Lingfeng S1) is built for exactly this gap, which is why buyers move off consumer brands once roofs are involved. Compare cost first with the payback breakdown.

What should you check in any robot’s spec sheet?

Slope rating, suction in pascals, IP rating, weight, and runtime under load. If two of those are missing, treat the machine as unknown rather than good. Consumer robots often omit slope and IP entirely, which is exactly why they are risky on skylights.

How do the classes compare on the numbers?

The gap in published data is the real gap. A commercial buyer should not have to guess a machine’s limits. The suction spec guide shows the numbers worth demanding.

How much does the commercial step-up cost?

Expect the jump from a consumer unit to a skylight platform to run several times the price, but spread across a roof with real area the daily cost falls sharply. The payback analysis compares the two over a realistic cleaning calendar.

What does a proper site trial look like?

A trial should run on your worst glass, in your dust, at your slope. Ask the vendor to leave the machine for two weeks and to supply a spare seal and squeegee. Watch three things: how the suction holds on a hot afternoon, whether water is recovered cleanly, and how easy the seals are to inspect and swap.

Keep a log every pass. Minutes run, area covered, water used and any suction warnings. At the end you will have real numbers, not a spec sheet. That log is also the fairest way to compare two vendors who each claim the best machine.

If a vendor will not lend a unit, treat that as information. Serious suppliers want the machine to prove itself on your building, because returns cost them more than a trial. The high-rise notes show what a trial should be measuring.

How do you brief a vendor before a quote?

Send a one-page brief: surfaces, square metres, slope, height, access and cleaning frequency. Ask for a machine rated to those conditions and a spares list with prices. A vendor who quotes without the brief is guessing, and a guess is what you end up owning.

Ask two questions that expose weak machines. What is the slope rating, and what is the suction held under load? If either answer is vague, the machine is not built for your roof. The suction guide lists the numbers a serious vendor will quote without hesitation.

Request a reference site with a similar surface. A reference on your kind of glass, in your climate, tells you more than any datasheet. Then trial the shortlist on your own roof and let the logbook decide. That sequence keeps emotion out of a purchase you will live with for years.

Key Takeaways

• HUTT and ECOVACS target home vertical windows, not skylight slopes.
• Skylight glass needs stated slope and IP ratings; consumer models often omit both.
• Consumer robots can work for one small, low-risk skylight.
• Glass over people requires water recovery and a service contract.
• Check spare-parts availability before you compare prices.

Comparing options for a glass roof? Get a straight answer.