Window Cleaning

Clean windows and glass partitions make a significant difference to how an office looks and feels. Natural light, unobstructed views and streak-free glazing signal a well-maintained professional environment to clients and staff alike. Office Cleaning London provides professional commercial window cleaning for London offices using reach-and-wash pure water systems and traditional methods for all glazing types.

Our window cleaning teams are trained in working-at-height procedures, carry appropriate insurance, and use pure water technology that leaves glass genuinely clean rather than just temporarily clear. We schedule window cleans around your team to avoid disruption and work in all conditions except severe weather.

Reach-and-Wash Pure Water Window Cleaning

Reach-and-wash pure water cleaning is the standard method for commercial windows up to approximately 20 metres height. Telescopic water-fed poles deliver de-ionised, purified water to window brushes that scrub the glass, frames and sills. Because the water is pure (containing no dissolved minerals), it dries leaving no spots or streaks. No chemicals are needed and no ladders are used, making it safer for operatives and causing no disruption at ground level.

Pure Water vs Traditional Window Cleaning

Traditional ladder-and-squeegee window cleaning uses detergent solutions that can leave chemical residue on the glass and frames. This residue attracts dust and dirt, meaning windows get dirty again faster than pure water cleaned glass. Pure water cleaned windows stay cleaner for longer because there is no residue to attract new contamination. For contract window cleaning, pure water systems deliver better results at comparable or lower cost.

Internal Glass Partitions

Internal glass partition cleaning is a standard part of our commercial window cleaning service. Open-plan offices with glass partition walls, meeting room glazing and glass balustrades all collect fingerprints, smear marks and dust that make an office look untidy even when the rest of the space is clean. We clean all internal glass with microfibre cloths and streak-free glass solution, working systematically to avoid re-contamination.

Internal glass cleaning can be scheduled as part of your daily, weekly or periodic cleaning contract, or as a standalone periodic service. We recommend internal glass cleaning at least fortnightly for client-facing offices and monthly for back-office spaces.

Scheduling and Frequency

Commercial window cleaning frequency depends on your building's exposure and your standards for client-facing areas. Most London offices benefit from monthly external window cleaning and fortnightly internal glass partition cleaning as a minimum. High-footfall buildings with street-level glazing or corner offices facing prevailing weather may benefit from fortnightly external cleans.

Frequently Asked Questions

How High Can You Clean Without Specialist Access Equipment?

Our reach-and-wash pole systems extend to approximately 20 metres, covering most four to five storey London office buildings without specialist access. For higher buildings we use rope access operatives or scissor lifts, both of which require a method statement and risk assessment. We assess access during the site survey and will not quote for work our equipment or team are not qualified to deliver safely.

Will Window Cleaning Disrupt My Team?

External window cleaning using water-fed poles is entirely non-disruptive to your team. Operatives work at ground level below the windows and the water-fed system causes no noise inside. Internal glass partition cleaning is carried out by a single operative working quietly with microfibre cloths and causing minimal disruption. Most clients opt for internal glass cleaning outside business hours or during lunch periods.

What Happens in Bad Weather?

Window cleaning in light rain is not a problem for pure water systems as the water itself is the cleaning agent. We do not clean in high winds, icy conditions or sustained heavy rain, as these create unsafe working conditions or produce poor results. If we need to reschedule due to weather, we contact you the day before and rebook within the same calendar week where possible.

How Frequently Should Office Windows Be Cleaned?

For most London offices, a monthly or bi-monthly clean keeps glazing presentable throughout the year. City-centre buildings near construction sites or busy roads accumulate grime faster and benefit from monthly or fortnightly visits. Buildings with large south-facing glazing may require more frequent attention during summer to manage solar glare from dirty glass. We recommend a schedule after surveying your building.

Do You Clean Internal Windows and Partitions?

Yes. Our internal window and glass partition cleaning service removes fingerprints, smears and dust that accumulate on internal glazing in open-plan offices. We use microfibre cloths with alcohol-based glass solution, leaving partitions streak-free without the residue that aerosol sprays leave behind. Internal glazing cleans are often combined with a regular contract to maintain a consistent, polished look across the entire office.