Scrubber-dryer machine on a freshly cleaned vinyl corridor floor in an office

Carpet and hard floor care methods used in Bristol

7 min read
Explained
Floor care is often the largest single line in a commercial cleaning quote, and the method chosen changes both the result and the risk. Carpets and hard floors need different equipment, products and drying times. This guide explains each method, the floors it suits and the slip risks that follow wet cleaning, so a Bristol buyer can read a floor specification with confidence.

Floors take the most wear in a commercial building, and their cleaning is one of the most visible results of a contract. A carpet that looks grey by Thursday and a vinyl corridor that shows streaks after mopping are both signs that the method is wrong for the surface or the traffic. Contractors quote floor care in different ways, sometimes using the same words for very different processes, and a buyer who understands the main methods can read a specification with much more confidence. This guide explains what each method involves, the floors it suits and the risks that follow.

Vacuuming and mopping

Vacuuming and mopping are the foundation of any floor routine. A vacuum removes loose dust, grit and fibres before they are ground into the surface, and it should be done regularly on carpets and on any hard floor that collects grit at the entrance. The quality of the machine matters: a worn vacuum with poor filtration can throw fine dust back into the room, which undoes some of the work and can affect people with respiratory conditions.

Mopping suits hard floors such as vinyl, sealed concrete and sealed tile. The method uses a damp mop and a detergent diluted to the strength the manufacturer recommends. Two buckets are a common approach, one for the clean solution and one for rinsing the mop, so that dirty water is not spread back over the floor. Over-wetting is the usual mistake. A mop that is too wet leaves standing water, and that water becomes a slip hazard until it dries.

The HSE's slips and trips pages explain how floors become slippery in use. Regulation 12 of the Workplace (Health, Safety and Welfare) Regulations 1992, every floor must be kept free from any substance that may cause a person to slip, so far as is reasonably practicable. A mopping routine that leaves a film of residue or pools of standing water falls short of that standard, however tidy the room appears once the floor is dry.

Scrubber-dryers for larger hard floors

A scrubber-dryer is a machine that applies detergent, scrubs the surface with a rotating brush or pad and then recovers the dirty water through a squeegee and vacuum. It is much faster than mopping over a large area, and it suits open-plan offices, warehouses, retail floors and corridors in busy buildings. The machine is ideal where the floor is flat and the traffic is heavy, because it removes the film of grime more evenly than a mop.

The method has its own risks. A scrubber-dryer leaves the floor wet while it dries, and the period of drying is a slip hazard. The contractor should plan the work so that a section can be cleaned and left to dry before foot traffic returns, and should use a wet-floor warning to keep people away from the area. The machine must be operated by someone trained to use it, and the operator should check the squeegee and the recovery system at each use, since a worn blade will leave a film behind.

Choosing a scrubber-dryer over a mop is not always the right answer. On small or irregular areas, the machine can be awkward to use, and on some floors, particularly those with a delicate finish, the brush can cause damage. The contractor should explain which areas it proposes to machine and which it will mop, and why.

Carpet cleaning: hot water extraction and encapsulation

Carpets are cleaned in two main ways, and each has a different result and drying time. Hot water extraction injects a heated solution deep into the fibres and then draws it out with a powerful vacuum, removing soil from the base of the pile as well as the surface. It is the most thorough method for heavily soiled carpets, and it suits offices, reception areas and hotel corridors where soiling reaches the backing. The carpet needs time to dry afterwards, and the contractor should plan the work so that the room can be closed off until it is ready.

Encapsulation uses a low-moisture solution containing polymer crystals that bind the soil so that it can be removed by vacuuming. The method leaves the carpet dry quickly, which makes it attractive for busy premises that cannot close rooms for long. It is less effective on heavily soiled carpets and may need to be combined with a periodic extraction. Ask the contractor which method it recommends for each area and why.

Carpet care products are chemicals, and their use is covered by the Control of Substances Hazardous to Health Regulations 2002. The Health and Safety Executive's COSHH guidance explains that the employer must assess the risks from substances used at work and control exposure. A contractor should be able to produce the safety data sheets for every product and to explain how the work is ventilated, particularly where a carpet is cleaned in an occupied building.

Sealing and polishing hard floors

Sealing and polishing protect hard floors and make them easier to clean. A sealer forms a layer over the surface that resists staining and wear, and a polish adds a further layer that can be stripped and replaced when it wears. These treatments are common on sealed concrete, vinyl and some tile floors. They change the way the floor behaves, and the cleaning routine must be adapted to suit the finish.

Stripping is the process of removing old sealer or polish before a new layer is applied. It is a heavy job that involves chemical strippers, water and time, and it generates a significant amount of waste liquid that must be handled correctly. The contractor should explain how stripped material is collected, filtered and disposed of, and it should not be allowed to enter the drainage system. Under the rules on business commercial waste, waste must be sorted, stored safely and taken away by a registered carrier.

Stripping and sealing are best done when the building is empty, since the process produces fumes, wet floors and noise. The contractor should plan the work for a weekend or a holiday period, and the client should make sure the building can be closed while the floors cure.

Slip risk after wet cleaning

Every wet method carries a slip risk until the floor is dry. The risk is highest where a floor is polished, where residue is left by a detergent, or where the floor is wet and unmarked in a busy area. A contractor who cleans a corridor at the start of the day should mark the wet section, work from one end to the other and leave the far end dry before staff return.

Residue is a common cause of slipping. Detergent that is not rinsed away forms a film that makes a floor slippery even when it looks dry. Ask the contractor to rinse hard floors where the product requires it, and to test a small area before using a new product across the whole floor. A floor that feels slippery under foot after cleaning should be treated as a fault, not as normal.

The duties on floors and traffic routes are the same whether the cleaning is done by hand or by machine. The client and the contractor should agree a method for each floor type in the specification, and the inspection routine described in the guide on scoring and tracking cleaning standards in Bristol can check that the method is being followed.

Reading a floor specification

A good floor specification lists each floor area, its finish and its traffic level, and names the method for each. It states the frequency of vacuuming, mopping, machine cleaning and periodic extraction, and it says who supplies the products and equipment. It also sets out how wet floors are signed and how long each area is kept closed after cleaning.

When you compare quotes, check that each contractor has answered the same questions for each area. A quote that offers machine cleaning for every floor without explaining the finish, or that offers extraction for every carpet without considering the traffic, is not telling you enough to compare it fairly.

You can request quotes that set out each floor area and its method, or look at the commercial floor cleaning and carpet care services available in Bristol. If a change of contractor is planned, the guide on TUPE when you change cleaning contractors in Bristol covers the staffing questions that can arise at the same point.