This tier is for residents who want to keep balcony glass in basic condition at a fixed interval but do not need deep handling each time. The visit is arranged monthly, and each visit covers deionized water treatment on both sides of balcony glass, frame surface wiping and quick dust removal from the bottom track. The core of the monthly tier is following the rhythm rather than adding items each time; the quote is formed by the single maintenance price multiplied by the agreed cycle count, reference price range: single balcony monthly maintenance single-visit price is about EUR 50?C85, and the cycle total is counted by actual months. The custom stage allows the resident to confirm the work scope before the cycle starts, and items are not added or removed temporarily within the cycle so the rhythm stays stable; if an adjustment is truly needed, it is handled by supplementary confirmation without affecting existing scheduling. The deposit is collected at a certain ratio of the cycle total when the first scheduling is confirmed, and each month’s balance is settled separately after that month’s completion, or paid at a merged point agreed by both sides.
