Deep Cleaning

Routine daily cleaning keeps your office presentable, but over months of use, grime builds in areas a regular clean cannot reach. Office Cleaning London provides professional deep cleaning services for London offices, tackling the accumulated soiling that affects air quality, hygiene compliance and the long-term condition of your fixtures and fittings.

Our deep cleaning teams operate outside your business hours to avoid disruption, working through a written scope agreed at the initial survey. We use specialist equipment including steam cleaners, high-reach vacuums and rotary scrubbing machines to deliver a standard that daily cleaning simply cannot achieve.

What Does an Office Deep Clean Cover?

A deep clean goes significantly further than daily maintenance. The scope varies depending on your premises, but our standard office deep clean covers the following areas in detail.

Hard-to-Reach Surfaces and Fixtures

Deep cleaning hard-to-reach surfaces includes cleaning above suspended ceiling tiles, the tops of partition walls, behind and beneath office furniture, inside window reveals and sill tracks, and the tops of cupboards and storage units. These areas accumulate significant dust and debris over time, affecting air quality and creating allergen reservoirs that daily cleaning misses entirely.

We also deep clean ventilation grilles, light fittings, fan coil unit casings and other HVAC-adjacent surfaces. Clean ventilation components improve air quality and reduce the workload on your HVAC system, which can lower energy costs over time.

Kitchen and Breakout Deep Clean

Kitchen deep cleaning covers the full interior of all appliances including fridges, ovens, microwaves and dishwashers. We degrease and descale all surfaces, clean inside and behind appliances, descale sinks and sanitise drains, and clean the insides of all cupboards and drawers. Grease, limescale and food residue that accumulate rapidly in a busy office kitchen are fully removed.

Deep cleaning your kitchen on a quarterly cycle maintains hygiene compliance, reduces pest attraction risk and extends the life of your appliances. The BRC (British Retail Consortium) guidance recommends deep cleaning food preparation areas at least quarterly (BRC, 2023).

Washroom Deep Clean

Washroom deep cleaning includes descaling all ceramic and chrome fittings, cleaning behind toilets, sanitising all grout lines, cleaning extractor vents, degreasing and polishing all tiled walls, cleaning under and behind sanitary units and replacing consumable supplies. We use hospital-grade disinfectants with a minimum 30-second contact time as standard.

According to the Chartered Institute of Environmental Health, washroom hygiene is a key factor in workplace infection transmission (CIEH, 2022). A quarterly deep clean significantly reduces cross-contamination risk beyond what daily maintenance can achieve.

Floor and Carpet Deep Treatment

Floor deep treatment during a deep clean goes beyond regular vacuuming and mopping. Hard floors are stripped of old wax or seal layers, scrubbed and re-treated with a fresh protective coat. Carpets receive hot water extraction or encapsulation cleaning to remove ground-in soiling, traffic lane greyness and odour-causing bacteria.

Professional carpet cleaning during a deep clean cycle extends the life of commercial flooring. The Carpet Foundation estimates that regular professional cleaning can extend carpet life by 30 to 50 per cent compared with vacuum-only maintenance (Carpet Foundation, 2023).

How Often Should You Deep Clean Your Office?

The recommended frequency depends on your office footfall, lease obligations and sector requirements. As a general guide:

High-footfall offices (100 or more staff, visitor-facing reception) benefit from a deep clean every three months. Medium-traffic offices (20 to 100 staff) typically schedule deep cleans every four to six months. Low-traffic offices (under 20 staff) may manage with two deep cleans per year alongside a thorough daily contract.

We review your deep clean frequency at each account meeting and adjust recommendations based on the condition of your premises and any seasonal factors such as post-refurbishment requirements or pre-lease-end dilapidations obligations.

Frequently Asked Questions

How Long Does a Deep Clean Take?

A deep clean for a 50-desk office typically takes six to ten hours depending on the scope and condition of the premises. We schedule deep cleans outside business hours or over weekends so your team is not disrupted. For large premises we deploy a bigger team to complete the work within a single overnight or weekend window.

Do I Need to Move Furniture Before a Deep Clean?

We can move standard office furniture such as chairs, small tables and pedestal units as part of the deep clean process. Large items such as fixed workstation banks, server cabinets and heavy storage should be pre-arranged with your facilities team. We provide a pre-clean checklist at the site survey so you know exactly what needs to be prepared in advance.

Can a Deep Clean Be Combined With My Regular Contract?

Yes. Most of our London clients combine a regular daily cleaning contract with a quarterly deep clean scheduled outside business hours. This approach maintains hygiene year-round and addresses the accumulated soiling that routine cleaning cannot reach. We price the deep clean as a separate line item so you can see exactly what you are paying for.