Window, glass and sash cleaning after construction in Tokyo
We clean glass, sashes, frames, tracks and sills after construction or renovation, working from inside and from balconies, for a fixed price per project.
Why windows come last and matter most
Glass is cleaned at the end because everything else produces dust and smears: sanding, painting, sealing and floor work all throw particles onto it. A window cleaned too early collects the dust again. Yet it is the window that the buyer’s photographer, the inspector and the new tenant notice first. We schedule glass near the end of the sequence, after walls and frames are done, so it stays clean when we leave.

The parts of a window we treat
Glass on both faces that we can reach, aluminium and resin sashes, the frame around the opening, the sill, the track along the bottom, the weep holes and corners where grit gathers, and the rubber seals. Sliding tracks on new windows are full of fine mineral dust, and a sash that glides smoothly on the day of handover is a detail owners remember. We brush and vacuum the track before wiping it.
Film, tape, stickers and sealant on glass
New glass arrives with film and manufacturer stickers, and fitting leaves tape and sometimes fresh silicone smudges. We peel film, lift stickers and tape, and wipe fresh sealant smudges and light paint splatter from the glass with surface-safe methods before the final clean. Cured sealant, hardened paint and etched or scratched glass are outside what we can promise to remove, and we mark them in the report.

Reach: inside, balcony and what we do not do
We clean the faces of windows that can be reached from inside the room and from balconies or terraces. We do not do exterior high-rise work, hanging gondola work or work that needs scaffolding or special access equipment. If a window cannot be reached safely, we say so at the quote stage and mark it, so the contractor can arrange the right specialist.
Different buildings, different windows
A newly built apartment has large sliding doors and balcony glass. A shop may have a big display front with frames and stickers. An office has rows of fixed panes and sills full of dust. A detached house has small windows in every room and a staircase window that is awkward to reach. We plan the team and the order from your plans or photos, so the number of windows and their type are priced before we arrive.

Pricing from plans and photos
Send plans, the number of windows or doors, a few photos including the awkward ones, or invite us for a site look. We reply with a fixed price for the project, what is included and the team size: one cleaner with a supervisor, two with a supervisor, or a larger crew for a whole building. The price is confirmed before the visit and does not change on the day.
What the photo report shows
After the visit you receive photos of windows, sashes, tracks and sills against our checklist. If a pane has damage that the glazier should look at, such as a scratch, a chip or an edge mark, we photograph it and tell you, so that the finding reaches the contractor before the handover instead of after. Owners and buyers can see the condition at the time of cleaning.
Common mistakes that scratch new glass
Dry-wiping gritty glass, scraping with a blade, using abrasive pads or cleaning in direct sun all risk scratches or streaks on new panes. Our crews wet and loosen the dust first, use cloths and tools made for glass, and work out of direct glare where possible. We mention this because owners sometimes clean a stubborn smear themselves before our visit. If you spot one, leave it and tell us, and we will approach it with the right method.
Choosing the day for the glass clean
Ask the contractor when drilling, cutting and sanding near windows will end. If a trade is still working beside the glass, the dust will return. Booking us after the last of the noisy work, and before the furniture arrives, gives the best result and saves a second visit. Tell us the planned handover date so we can fit the window clean into the sequence. If the building has several floors, we can clean from the top floor down so that water and dust never fall on glass we have already finished. For large projects, we size the team to the number of windows, and the quote states how many people we plan to send, so a deadline can be met without surprises on the day. Photos of the awkward windows help us most.
Booking, areas and our guarantee
We serve the 23 wards of Tokyo and Kanagawa, Saitama, Chiba, Ibaraki, Tochigi and Gunma, with travel cost outside the 23 wards stated before the booking is final. Standard visits are 9:00 to 17:00 and out-of-hours work can be agreed by message. Payment is by credit card, bank transfer, PayPay or cash, with an invoice for companies. If a smear was missed, report it within 24 hours with a photo and we re-clean it at no extra cost.
How do I book a cleaner?
Choose a service
Pick a plan and see the fixed price.
Pick a date
At least 24 hours ahead, between 9:00 and 17:00.
We confirm
We reply by email, normally within 1 hour.
We clean
Your cleaner arrives with supplies and the agreed checklist.
Frequently asked questions
Do you clean the outside of windows?
We clean the faces that can be reached from inside the room or from a balcony. We do not do high-rise exterior or gondola work.
Can you clean sliding window tracks?
Yes. We brush and vacuum the tracks to remove construction dust, then wipe them clean.
Will you remove sealant marks on the glass?
Fresh silicone smudges can be wiped away with surface-safe methods. Cured sealant is not something we promise to remove.
Is the price per window?
The price is per project, set from plans or photos and confirmed before the visit.
Price shown upfront. Book in 2 minutes, reply within 1 hour
Fixed priceTeam + supervisorEnglish and Japanese
Ready to book? Check availability
Inquiries and reservations are accepted 24 hours a day. When you submit, we check availability, assign a cleaner and contact you within 1 hour.
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