Few cleaning specifications quietly cost a London building as much as its hard floors. A reception in Mayfair, a school corridor in Southwark, a healthcare suite in Harley Street — they all share the same problem. Hard floors take a pounding from foot traffic, grit, water, trolley wheels and cleaning chemicals, and once the protective finish has worn through, the substrate beneath starts to fail. By that point, the only options are expensive: deep restoration, or replacement.
A planned strip and seal programme is how facility managers stop that slide. Done properly, it protects the floor, controls slip risk, lifts the look of the building, and pushes capital replacement out by years. Done poorly — or skipped — it leads to dull, scuffed, slippery floors that quietly drag down the whole impression of the premises.
This guide is written for office managers, facility managers and business owners across London and the South East who need a clear view of what hard floor stripping and sealing actually involves, how often to do it, what the law expects, and how to specify the work so contractors deliver consistent results.
Why hard floor care matters more than it looks
Floors are the single largest interior surface in most commercial buildings. They take more abuse than any other element, and they are the first thing visitors notice. Three things tend to push hard floor care up an FM's priority list.
Slip safety. Slip and trip incidents are consistently among the most common causes of major workplace injuries reported to the Health and Safety Executive. The condition of the floor — its cleanliness, its finish and the way it is maintained — has a direct effect on whether a surface meets a low-risk slip resistance threshold under the Pendulum Test set out in BS 7976-2. A floor that is fine when sealed correctly can drop into a high-risk band once the seal has worn or the wrong cleaning chemistry has been applied.
Asset value. A vinyl, terrazzo or stone floor that has been correctly stripped and sealed on a sensible cycle will last decades. The same floor left to wear through its protective layer will need expensive restoration or replacement long before it should.
First impressions. Reception areas, lift lobbies and customer-facing spaces are judged within seconds. Streaks, scuff marks, cloudy finishes and worn edges quietly tell visitors and staff that the building is not well looked after — even when everything else is.
The hard floor types in most London commercial buildings
Before commissioning any work, it is worth knowing what is actually on the floor. The right method varies considerably by surface.
Vinyl composition tile (VCT) and sheet vinyl
The classic candidate for stripping and sealing. VCT is common in older offices, schools, healthcare premises and back-of-house areas. It needs an emulsion polish (a sealer/finish) to protect it, and that finish needs periodic stripping and reapplication.
Luxury vinyl tile (LVT)
Increasingly common in modern London offices. Most LVT comes from the factory with a polyurethane wear layer, so it does not always need traditional sealing. Some products specifically should not be stripped with traditional alkaline strippers — always check the manufacturer's guidance before specifying work.
Safety vinyl
Found in kitchens, washrooms, healthcare and hospitality areas. Safety vinyl uses aggregate to create slip resistance and must never be sealed with a conventional polish — doing so fills the texture, kills the slip rating and creates a serious safety problem. Safety vinyl is maintained by scrubbing with the correct pH-neutral chemistry and a suitable pad.
Polished concrete and resin
Common in showrooms, retail and modern fit-outs. Concrete is normally maintained with neutral cleaning and periodic burnishing or diamond polishing rather than a wax-based finish.
Natural stone, terrazzo and marble
Found across heritage buildings, banking halls, hotels and prestige offices around Westminster and the City. These need specialist crystallisation, diamond pad or impregnating sealer treatments — not standard emulsion polish.
Ceramic and quarry tile
Common in kitchens, washrooms and back-of-house. Generally not sealed with floor finish, but grout lines need rotary scrubbing on a periodic cycle.
What "strip and seal" actually means
Stripping and sealing is the term FMs hear most often, but it covers three distinct stages of work.
Stripping removes the existing layers of polish (or sealer/finish) using either a chemical stripper applied with a scrubbing machine and stripping pad, or a chemical-free orbital system that abrades the old finish off mechanically. After stripping, the floor is rinsed thoroughly until pH-neutral, then left to dry completely.
Sealing applies a fresh emulsion polish — usually three to five thin coats — with adequate drying time between each. A correctly applied seal levels small surface imperfections, restores gloss and forms a sacrificial barrier that takes the abuse so the substrate underneath does not.
Burnishing or polishing is the maintenance stage. A high-speed burnisher is run over the floor on a regular cycle to smooth and "lay over" the surface, restoring shine and extending the life of the seal. This is what allows you to push the next full strip and seal further out.
The three operations work as a system. A strip and seal cycle without a burnishing schedule is wasted money — the finish will dull within weeks.
How often should London offices strip and seal?
There is no universal frequency, because traffic and contamination dictate everything. As a general rule of thumb for London commercial buildings:
- High-traffic areas (reception, main circulation routes, canteens, lift lobbies, school corridors) — full strip and seal every 6 to 9 months, with weekly or fortnightly burnishing in between.
- Medium-traffic areas (general office floors, meeting rooms, secondary corridors) — full strip and seal every 12 months, with monthly burnishing.
- Low-traffic areas (executive offices, private suites, plant rooms) — every 18 to 24 months, with quarterly burnishing.
- Healthcare and food-prep areas — frequencies are usually driven by infection control and audit cycles rather than wear, and need to be aligned with the operator's policies.
Two factors compress those intervals significantly in London: weather and grit. Wet pavements push moisture into buildings; underground works and construction sites across central London push silica grit through entrances. Both wear seal coats faster than the textbook frequencies above suggest, which is why entrance matting and a robust daily routine are not optional extras — they are what makes the whole programme economic.
Slip resistance and the BS 7976 standard
If a slip claim ends up in court, the question that decides it is usually the floor's Pendulum Test Value (PTV) under BS 7976-2. The HSE recognises this as the benchmark method for assessing slip resistance in UK workplaces. The thresholds are clear:
- PTV 36 or above — low slip risk
- PTV 25 to 35 — moderate risk
- Below PTV 25 — high slip risk
Floor finishes affect the rating. A glossy, freshly polished floor that looks impressive in a Mayfair lobby may not perform well when wet. That is why specification matters: facility managers should ask their contractor what PTV the proposed seal achieves both dry and wet, and should consider periodic pendulum testing in higher-risk areas. If the building has had a previous slip incident, a documented testing programme is one of the most useful pieces of evidence an FM can hold.
A best-practice hard floor programme
The buildings that look consistently good — and avoid the painful capital cost of premature replacement — operate the same basic programme.
Daily and weekly tasks
Walk-off matting at every entrance, deep enough to take three or four full strides. Daily vacuuming of those mats and dust-mopping of all hard floor areas to lift grit before it scratches the seal. Damp mopping with the correct pH-neutral chemistry — not a strong alkaline that strips finish unintentionally, and not a thick, sticky cleaner that leaves a haze. This is the foundation of general cleaning and gets results only when the daily detail is done properly.
Periodic burnishing
A high-speed burnish on a monthly or six-weekly cycle in main areas. Burnishing only takes a few minutes per square metre, can be done out of hours, and dramatically extends the time between full strip and seal cycles.
Annual strip and seal
A full programmed shutdown of the area in question, ideally over a weekend or a quiet period. Furniture moved, edges hand-detailed, three to five seal coats applied, and the area handed back with full drying time observed before traffic returns. Skimping on drying time is the single most common reason a freshly sealed floor looks poor within a fortnight.
Documentation
Every cycle should be logged — date completed, products used, coats applied, who carried out the work, any pendulum readings taken. This is good FM hygiene and it is exactly what an HSE inspector or insurer will ask to see if anything ever goes wrong.
Sustainability and the move away from solvent strippers
Traditional floor strippers are aggressive alkalis, often with strong odour, high VOC content and serious COSHH implications for the operatives applying them. Two changes are reshaping the market in 2026.
First, chemical-free orbital stripping systems, which use specialist abrasive pads instead of liquid stripper, are now mainstream. They cut chemical use to almost zero, dramatically reduce water consumption, and remove the slip risk and odour issues associated with traditional stripping. They are also far better suited to occupied buildings, where conventional stripping is hard to schedule.
Second, water-based, low-VOC seal coats with third-party environmental certification (Ecologo, Green Seal, EU Ecolabel) are now standard rather than premium. Specifying them is a quick win for any FM working under an ISO 14001 or BREEAM In-Use programme. For more on aligning cleaning with environmental targets, see our guide to eco-friendly commercial cleaning in London.
Choosing a London floor care contractor
Floor stripping and sealing is unforgiving. Done well it is invisible; done badly the result is on display until the next cycle. The selection criteria broadly mirror the wider tender process set out in our guide on how to choose a commercial cleaning company in London, but a few floor-specific points are worth pressing on. When specifying or tendering the work, look for:
- BICSc-trained operatives who can demonstrate a documented training record for floor care specifically — not just general cleaning.
- Method statements and risk assessments tailored to your building, including signage plans, edge protection and pedestrian routing during the works.
- Manufacturer-aligned product systems, where stripper, seal and maintainer all come from the same supplier and the contractor can produce technical data sheets on request.
- Realistic out-of-hours access, with the staff and equipment to complete the job in the agreed window — late-running floor work in a London office on a Monday morning is a problem you do not want.
- Insurance and accreditation appropriate to commercial premises — public liability cover, SafeContractor or CHAS, and ISO 9001/14001 for larger contracts.
Mithraic delivers commercial floor care across London and the South East as part of a broader facilities management service, with the option to bundle hard floor work with carpet care, washroom hygiene and planned maintenance under a single specification.
Conclusion
Hard floors are one of the few areas of facilities management where consistent, planned care is dramatically cheaper than reactive intervention. A clear strip and seal programme — sized to the traffic, aligned to BS 7976 slip-resistance expectations, supported by daily detail and burnishing — protects a major capital asset, controls slip risk, and keeps your premises looking the way the business wants to be seen.
The buildings that get this right are the ones where it never becomes a topic of conversation. The floors are simply always good. That is the standard worth specifying.
