What the work really looks like
Most office cleaning in the UK is not done by the company whose desks get wiped. It is subcontracted to large facilities firms such as Mitie, ISS, Sodexo, OCS and Compass Group. That single fact shapes everything else: your employer is the contractor, your site is someone else's building, and your supervisor may be looking after four buildings at once.
The hours are the first thing to get your head around. Offices are cleaned either before staff arrive, usually between 5:30am and 7:30am, or after they leave, from about 6pm to 9pm. A two-hour shift at 6am in Croydon or Salford means leaving home when buses are thin and the weather is unpleasant. Plenty of people take the evening slot for exactly that reason, then find they cannot get home after the last train.
The second issue is shift length. A great many office cleaner job contracts are built around two to four hours a night, five nights a week, which adds up to ten or twenty hours. If you travel forty minutes each way for a three-hour shift, the journey quietly eats a chunk of your pay. Before accepting anything, work out the cost of getting there and back at that specific time of day. A site on a bus route you already use is worth more than 50p an hour extra somewhere awkward.
The third trap is the gap between the rate on the advert and the money in your account. Since 1 April 2026 the National Living Wage for anyone aged 21 and over is £12.71 an hour, confirmed by the Low Pay Commission. Rates advertised for part time office cleaner jobs in London currently sit around £11 to £14 an hour, with the lower figures usually attached to roles that include holiday pay and the higher ones often offered to people working through an umbrella company. That distinction matters.
Pay, paperwork and the details people miss
A directly employed office cleaner gets a payslip showing hourly rate, tax, National Insurance and holiday pay accrued. Statutory holiday is 5.6 weeks a year pro rata, so ten hours a week earns you roughly 56 hours of paid leave. After three months most employers must also enrol eligible staff into a workplace pension. None of this appears if you are engaged as self-employed, which some agencies push hard because it shifts costs onto you.
Public sector contracts are the steady end of the market. An NHS Band 2 cleaning post advertised for London sites came in at £25,272 a year pro rata, which works out considerably better than the headline hourly rate once pension and leave are counted. Council buildings, universities and hospital trusts recruit through their own websites rather than the big job boards, so searching "office cleaner jobs near me" will not surface most of them.
| Route | Typical pay | Usual hours | Strengths | Watch out for |
|---|
| Contract cleaning firm (Mitie, ISS, Sodexo, OCS) | At or just above £12.71 an hour; £12 to £14 in London adverts | 2 to 4 hour shifts, early or late | Quick start, training on site, multiple sites to move between | Short shifts, split locations, tight sick cover |
| In-house public sector (NHS, council, university) | Around £25,272 a year pro rata for a Band 2 post | Often 20 to 30 hours, fixed rota | Pension, paid leave, predictable site | Slower recruitment, fewer vacancies, formal interviews |
| Agency or temp work | £11 to £14 an hour depending on region and shift | Variable, sometimes week to week | Fast placement, a way to try sites before committing | Hours can disappear, check holiday pay on every payslip |
| Self-employed, direct with small offices | Self-employed cleaners typically earn £20,000 to £35,000 a year | You set the schedule | Better rates, control, repeat clients | No sick pay or leave, you invoice, insurance needed |
The table hides one thing worth spelling out. Two cleaners on the same £13 an hour can take home very different amounts. Someone on a fixed 20-hour contract with paid leave and a pension is, in practice, earning more than someone doing 25 variable hours with no benefits and a £9 return bus fare each shift.
Getting hired without wasting weeks
Right to work documents come first. A passport or biometric residence permit, a National Insurance number and bank details are the standard set, and employers must see originals. If a site is a school, hospital, care setting or a building with vulnerable users, expect a DBS check as well. Cleaning roles sit below the level required for a Skilled Worker visa, so sponsorship is not available; agencies advertising otherwise should be treated with suspicion.
Practical steps that tend to work:
- Apply to the contractor's own careers page, not just the aggregator. Mitie and ISS both list site-level vacancies with shift times attached.
- Ring the site supervisor after applying. Contract cleaning hires on reliability, and a short call puts a name to the application.
- Ask three questions before saying yes: exact shift times, whether equipment is supplied, and whether the rate includes holiday pay.
- Check the employer on Companies House if the name is unfamiliar, and never pay for training, uniform or placement. Charging applicants upfront is not lawful under the Employment Agencies Act 1973, and reports go to Action Fraud.
- Consider a short course. The British Institute of Cleaning Science runs basic training that costs well under £100 and signals competence on a crowded shortlist.
Regional differences are real. London has the volume of vacancies but the highest travel costs, and Zones 4 to 6 often pay the same rate as Zone 1 while adding an hour of commuting. Manchester, Leeds, Birmingham and Glasgow have fewer adverts but shorter journeys and cheaper parking for early shifts. Weekend office cleaning is a useful niche in city centres, where Saturday rates can be nudged upwards because nobody wants the slot.
New starters usually get an induction covering COSHH rules, colour-coded cloths and equipment, and safe manual handling. Take notes. Knowing which chemical goes on which surface, and which cloth never touches a toilet, is what separates a competent cleaner from someone who gets moved site every few weeks.
The realistic picture
Office cleaning suits people who want set hours, work that stays at work, and a short commute more than they want a high salary. The trade-off is real: most contracts are small, pay sits close to the legal floor, and your income depends on keeping the site. It rewards reliability more than speed, and supervisors remember who turns up in January.
Start with one site rather than three. Once you have shown you can hold a building, ask for extra hours, a weekend contract or a move to a better-paid site. The office cleaner job market in the UK is always hiring somewhere, and the people who do best treat the first six months as a way of learning which employer, and which shift, is worth staying with.