How to become a Building Cleaner
Also called: Window cleaner, Toilet cleaner, Office cleaner, Floor scrubber operator, Floor polisher
Cleans all kinds of buildings, from office blocks to shops, schools and hospitals.
Main tasks
- Emptying rubbish bins
- Dusting furniture, walls, machines and equipment
- Sweeping, dust mopping or vacuuming floors to remove dirt and dust
- Mixing water with detergent or acid to make cleaning solutions
- Mopping and scrubbing floors with cleaning solutions, tools and machines
- Applying wax or sealant to floors
- Cleaning toilets and restocking toilet paper and paper towels
- Disinfecting facilities and equipment with special disinfectants and sprays
- Cleaning the streets around the building
- Washing exteriors and windows
- Cleaning glass and metal fittings with solvents, brushes, cloths and vacuum cleaners
- Collecting waste and taking it out on a trolley
- Sorting collected rubbish
- Managing cleaning supplies and equipment
- Writing quotes for cleaning work
- Listening to requests from clients such as building managers and acting on them
- Taking photos for the report after cleaning
Workers in this job say high school is common. From job tag's survey of people in each job, who could give several answers. It shows what workers see as common, not how many workers hold each level.
How to become one
No particular education or qualifications are needed to start. People also join mid-career, for example changing from other jobs or homemakers returning to work. If you join as a permanent employee, once you gain experience and become a site supervisor you also plan the work and staffing. A related qualification is the building cleaning exam in the ginou kentei (national trade skills test) run by the Ministry of Health, Labour and Welfare, which is valued as proof of skill. The first grade is needed to become a cleaning work supervisor when a building cleaning business registers under the Act on Maintenance of Sanitation in Buildings. You need to learn about building materials and cleaning products and how to use machines, detergents and floor care products. You work in clients' offices and shops, so earning their trust is important. The job suits people who like things clean and are careful and thorough, and, since much of the work is done together, people who work well in a team.
Ways in
- Vocational college, junior college, kosen and trade skills tests: National trade skills test (技能検定). Certified skilled worker (技能士) grades that job tag lists for this job: ビルクリーニング技能士. The trade skills tests are national tests set under the Human Resources Development Promotion Act.
Pay · Job openings · AI and this job
- Average annual income: ¥2,974,100 Private sector only: employers with 10 or more staff. Public servants, such as public school teachers and police officers, are not in these figures.
- Monthly base pay (before overtime and bonus): median ¥204,900, and the middle half earn ¥177,200 to ¥241,600 a month.
- 1.27 job openings per applicant at Hello Work (2025). A current demand signal, not a projection. It counts only the jobs and job seekers registered at Hello Work, Japan's public employment offices, and many graduate and professional hires never pass through it.
- Generative AI can do relatively little of this work, by the ILO's global estimate.
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Questions people ask
How do I become a Building Cleaner?
No particular education or qualifications are needed to start. People also join mid-career, for example changing from other jobs or homemakers returning to work. If you join as a permanent employee, once you gain experience and become a site supervisor you also plan the work and staffing. A related qualification is the building cleaning exam in the ginou kentei (national trade skills test) run by the Ministry of Health, Labour and Welfare, which is valued as proof of skill. The first grade is needed to become a cleaning work supervisor when a building cleaning business registers under the Act on Maintenance of Sanitation in Buildings. You need to learn about building materials and cleaning products and how to use machines, detergents and floor care products. You work in clients' offices and shops, so earning their trust is important. The job suits people who like things clean and are careful and thorough, and, since much of the work is done together, people who work well in a team.
How much does a Building Cleaner earn in Japan?
Average annual income in the private sector, bonus included, is ¥2,974,100 (Ministry of Health, Labour and Welfare).
Do you need a degree to become a Building Cleaner?
Usually not. In this job's census occupation group, only 8% of workers are university graduates. Ways in include: National trade skills test (技能検定).
Will AI change the work of a Building Cleaner?
Generative AI can do relatively little of this work, by the ILO's global estimate.
Sources
- Ministry of Health, Labour and Welfare: Basic Survey on Wage Structure (賃金構造基本統計調査) 2025: earnings by occupation (2025 survey (June 2025 pay, 2024 bonus), published 2026-03-24), Government Standard Terms of Use 2.0, retrieved 4 October 2026
- Ministry of Health, Labour and Welfare: Employment Referrals for General Workers (一般職業紹介状況): Hello Work job-openings-to-applicants ratio by occupation (2025 annual (release of 2026-10-02)), Government Standard Terms of Use 2.0, retrieved 4 October 2026
- Statistics Bureau of Japan (MIC): 2020 Population Census (令和2年国勢調査) detailed sample tabulation: employed by occupation, sex, age and education (2020 Census (tables 9-1 and 15-1, published 2022-12-27)), Government Standard Terms of Use 2.0, retrieved 4 October 2026
- JILPT (職業情報データベース) via MHLW job tag: job tag download data: 解説系 (descriptions, how to become, related qualifications) and 簡易版数値系 (interests, tasks, education) (解説系 ver.7.01 (2026-06-04); 簡易版数値系 ver.7.00 (2026-03-17)), retrieved 4 October 2026
- International Labour Organization, Generative AI and Jobs: A Refined Global Index of Occupational Exposure (ILO Working Paper 140, Gmyrek et al.) (ILO Working Paper 140, May 2025, Annex Table A1), CC BY 4.0, retrieved 4 October 2026
独立行政法人労働政策研究・研修機構(JILPT)作成 職業情報データベース 解説系ダウンロードデータ(IPD_DL_description_7_01.xlsx)ver.7.01 職業情報提供サイト(job tag)より2026年10月4日にダウンロード(https://shigoto.mhlw.go.jp/User/download)を加工して作成
独立行政法人労働政策研究・研修機構(JILPT)作成 職業情報データベース 簡易版数値系ダウンロードデータ(IPD_DL_numeric_7_00.xlsx)ver.7.00 職業情報提供サイト(job tag)より2026年10月4日にダウンロード(https://shigoto.mhlw.go.jp/User/download)を加工して作成
Sources: JILPT Occupational Information Database download data via job tag (解説系 ver.7.01 and 簡易版数値系 ver.7.00, downloaded 4 October 2026), processed by Peernovo; MHLW, Basic Survey on Wage Structure 2025; Statistics Bureau of Japan, 2020 Population Census; MEXT, School Basic Survey 2025; MHLW, Employment Referrals for General Workers (Hello Work statistics). Figures processed by Peernovo. English job names, translations and the matching of jobs to statistical groups, schools and degree fields by Peernovo.
Updated 4 October 2026
