Commercial Carpet Cleaning VIC 2026 - Get Free Quotes

Why Commercial Work Prices Per Square Metre

Residential carpet cleaning is quoted by the room because houses have rooms of broadly predictable size. Commercial floors have no such convention, since an open plan office, a retail floor and a corridor system share nothing dimensionally, and pricing them by area is the only method that lets two operators quote the same job on the same basis.

The rate falls as the area rises. Setup, travel and site induction are fixed costs spread across whatever floor area is being done, so a 90 square metre suite prices well above a 900 square metre floor on a per metre basis, and most operators apply a minimum attendance of $180 to $350 to make small sites viable. That minimum is worth knowing before you request quotes on a single tenancy.

Measured area is not always the same as cleanable area. Desks, fixed shelving, filing systems and stock displays all reduce what can actually be reached, and a quote based on a floor plan without allowance for obstruction will not match what happens on the day. Agree how the area is calculated. It is the most common source of variation between commercial quotes.

Frequency changes the rate as much as area does. An operator holding a regular quarterly booking prices lower per visit than one attending once and never returning, because the work is scheduled, the site is known and the soil load is predictable. Scheduled work is priced below one-off attendance for that reason. General service rates sit at carpet cleaning. Three operators quoting the same measured area is the only fair comparison.

Encapsulation or Restorative Extraction

Commercial maintenance uses two quite different processes and understanding both is where the savings live. Encapsulation applies a polymer compound that surrounds each soil particle and crystallises as it dries, so the soil becomes a brittle crystal that lifts out with normal vacuuming over the following days. The process uses very little water. The floor is usable within an hour or two.

Hot water extraction is the restorative process and it does something encapsulation cannot. Hot water and detergent are injected and immediately recovered, physically flushing soil out of the pile rather than crystallising it for later removal, which is what a heavily soiled floor eventually needs. It costs more and takes longer to dry. The technical detail sits at steam carpet cleaning.

The sensible commercial pattern uses both. Encapsulation on a short cycle keeps appearance consistent and soil load low, with restorative extraction every twelve to twenty-four months to remove what has accumulated below the surface, and that combination costs less over five years than restorative cleaning alone. Neither of the two methods substitutes for the other. Running only encapsulation eventually leaves soil the compound cannot reach.

Bonnet buffing appears on some commercial quotes and it is a surface treatment. An absorbent pad is run over slightly dampened carpet to lift surface soil, which produces a quick visual improvement suitable before an inspection or an event, though it does nothing below the top of the pile and can distort fibre if overused. It has a narrow legitimate use. It is not a maintenance programme. Minimum attendance charges are what make small tenancies price oddly.

Method choice should follow the carpet and the soil, not the operator's preference. A low pile loop in a corridor responds well to encapsulation, while a cut pile in a boardroom holding years of accumulated soil needs extraction, and an operator who applies one process to every floor is working to a template. Ask why they have chosen a method. How they justify the choice reveals their depth.

Building a Maintenance Programme

A maintenance programme is a schedule matched to how the floor is in fact used, and it is the single most effective cost control available on commercial carpet. The underlying principle is that soil removed early is cheap and soil left to embed is expensive, both to remove and in the wear it causes.

Daily vacuuming carries most of the load and it is usually somebody else's contract. Dry soil removal by the general cleaning contractor determines how quickly the carpet deteriorates between specialist visits, and a site with poor daily vacuuming needs interim cleans far more often. Check what the cleaning contract specifies. Broader cleaning scope sits at cleaning services, and vacate work at end of lease carpet cleaning.

Interim cleaning targets the areas that actually get dirty. Traffic lanes, entries, lift lobbies and the space in front of counters accumulate soil at several times the rate of a quiet office corner, so an interim programme that treats those zones monthly and the balance quarterly costs less than treating everything at the same frequency. Zoning the floor plan repays doing once. A zone map shapes every booking that follows. Interim work is what stops a floor ever needing the expensive process.

Restorative cleaning is scheduled, not reactive. Booking extraction on a defined cycle rather than waiting until the floor looks poor keeps the carpet inside its performance range and avoids the situation where a site needs an expensive rescue clean before a lease inspection or an audit. Budget it as a line item. Unplanned restorative work is where facility budgets blow out. Zoning the floor plan once shapes the cost of every visit afterwards.

Review the programme annually against what in fact happened. Changes in headcount, a new entrance, a relocated printer or a café moving into the ground floor all change soil patterns, and a schedule written three years ago rarely matches current use. A short walk-through with the operator catches it. Operators generally offer that review without charging.

Soil Load and Traffic Zones

Commercial carpet does not soil evenly and treating it as though it does wastes money. Roughly eighty per cent of the soil entering a building arrives on foot and is deposited within the first few metres of an entrance, which is why the entry zone looks tired long before the rest of the floor does.

Traffic lanes form where people take the same path repeatedly. The route from lift to reception, the corridor to the kitchen, and the walkway between desk banks all carry concentrated footfall, and these lanes need attention at several times the frequency of the surrounding area. Marking the lanes on a floor plan takes ten minutes. It changes the whole cost structure of the programme.

Soil type varies by site in ways that affect the method. An office in a Melbourne tower deals with fine dust and shoe soil, a warehouse office collects dust and oils from the adjoining floor, and a ground floor tenancy beside a café accumulates food and drink spills, each needing a different chemistry emphasis. Describe what the site actually deals with. The right pre-treatment follows from that. Bonnet work has a place before an inspection and none in a programme.

Weather drives soil load more than anything else in Victoria. A wet Melbourne winter week tracks water and grit through every entrance in the city, and sites that cope perfectly well in February need noticeably more attention in July, which is an argument for a seasonally weighted programme instead of a flat one. Winter frequency should sit above summer, and most programmes never make that adjustment.

Entrance Matting Earns Its Keep

Matting is the cheapest carpet maintenance available and most commercial sites under-invest in it. A properly specified entrance system captures soil and moisture before it reaches the floor, and every kilogram stopped at the door is a kilogram that never has to be extracted from the pile at $3 to $7 a square metre.

How far the matting runs matters more than what it costs. A person needs several steps on matting for it to work, which means a mat covering three to five metres of walking distance from the door removes far more than a token mat inside the threshold, and most buildings install a fraction of what the traffic warrants. Measure the matting in footsteps, not metres. Two paces of matting achieves very little. Entry zones soil several times faster than the rest of a floor plate.

The system usually needs two stages. A coarse scraper section outside or immediately inside the door removes grit and heavy soil, followed by an absorbent section that takes up moisture, and using only one of the two leaves half the job undone. Wet Melbourne winters make the absorbent stage essential. Water carried past the matting is what creates the dark entry patch.

Matting itself needs cleaning on a schedule. A saturated mat stops absorbing and starts redepositing, which turns a preventive measure into a soil source, so deep cleaning the matting monthly to quarterly at $6 to $12 a square metre belongs in the programme, not on top of it. Neglected matting is worse than none. It looks maintained while doing nothing. Poor daily vacuuming forces interim cleaning far more often than it should.

Carpet Tiles and Attic Stock

Most Victorian commercial floors laid in the last two decades use carpet tiles, and they change what maintenance can achieve. A tile that is permanently stained or damaged can be lifted and swapped for a spare, which turns a problem that would be permanent in broadloom into a ten minute fix at $8 to $20 in labour.

Attic stock is the term for spare tiles kept from the original installation, and its value is hard to overstate. Tiles from the same production run match in colour and pile in a way that a later purchase rarely does, since dye lots and manufacturing runs shift over time, and a site without attic stock loses the main advantage of a tiled floor. Store them somewhere dry and known. Facilities teams lose them at every office move. Soil arrives on foot, which is why the door is where the money is saved.

Rotating tiles extends the life of the whole floor. Swapping worn tiles from a traffic lane with less used tiles from under a desk bank evens out wear across the installation and defers replacement, which is a straightforward exercise most operators will do during a scheduled clean. Rotating tiles costs almost nothing in labour. Few sites think to ask for it.

Tiles do have a maintenance quirk worth knowing. Moisture can travel into the seams and the backing if a floor is over-wetted, and heavily saturated tiles can curl at the edges, so extraction on a tiled floor calls for controlled moisture and thorough recovery. Hard and soft floor options across a building sit at flooring services.

How Commercial Carpet Is Built

Commercial carpet is a different product from anything in a house and it is engineered for abuse. Pile is low and dense, usually a loop construction rather than a cut pile, because loops resist crushing under constant footfall and hide soil better than an upright plush ever could.

Solution-dyed fibre dominates the sector for good reason. Colour is locked into the fibre during manufacture rather than applied to the surface, which means it resists bleaching from cleaning products, tolerates stronger chemistry and holds its appearance through cleaning cycles that would strip colour from a residential carpet. It is the reason commercial floors take robust treatment. Australian mills including Godfrey Hirst supply widely into this market. Tile backings resist moisture but seams still object to over-wetting.

Backing systems differ from residential carpet too. Commercial tiles use heavy bitumen or PVC backings that provide dimensional stability and let individual tiles sit flat without adhesive across the whole floor, and that stability is what allows tiles to be lifted and replaced. The backing also limits moisture penetration. Over-wetting is still a genuine risk at the seams.

Fusion bonded and tufted constructions behave differently under extraction. Fusion bonded carpet has fibre anchored in a way that resists pile loss and takes aggressive agitation, while tufted products need a lighter hand, and an operator should be reading the construction before selecting a wand and a brush. Construction is visible from the back of a tile. Lifting a single tile to check takes seconds.

Understanding the product changes what maintenance can reasonably achieve. A dense low loop in solution-dyed nylon will look presentable for fifteen years on a decent programme, whereas the same traffic on a residential grade carpet destroys it in three. Specification does most of the work. When a floor reaches end of life, carpet installation and replacement covers what follows.

Measuring the Site Properly

Everything in a commercial quote hangs off the area figure, and getting it wrong distorts every comparison. The number that matters is cleanable area, meaning the carpet an operator can in fact reach with a machine, which is always less than the gross floor area on a plan. Dye lots shift between production runs, so later tiles rarely match.

Fixed obstructions come out of the calculation. Built-in joinery, server racks, fixed shelving, safes and anything bolted down reduces cleanable area, and a quote priced on gross area will either overcharge or leave the operator absorbing the difference. Neither of those outcomes lasts a full contract term. Agreeing the deduction method up front prevents the argument.

Loose furniture is a scope question, not an area question. Desks, chairs and pedestals can be moved or worked around, and the choice affects both price and coverage, since cleaning around a desk bank leaves an untouched rectangle that becomes visible over time. Decide which of the two approaches applies. Then price it consistently across operators.

A site measure beats a floor plan on anything sizeable. Plans are frequently out of date after a fitout, and an operator walking the floor picks up the obstructions, the access constraints and the soil pattern in the same visit, which produces a quote that holds. Most will measure at no charge. On sites above about 300 square metres it is worth insisting on. Tile rotation is a free intervention most facilities teams never request.

Reporting, Records and Warranty

A maintenance record repays more than most facilities teams expect. Carpet manufacturers commonly require professional cleaning at defined intervals as a warranty condition, and a claim made without evidence of that history is difficult to sustain, particularly on a large commercial installation where the sums are significant.

The record does not need to be elaborate. Date, areas treated, method used, products applied and any defects noted covers what a manufacturer or a landlord will ask for, and most operators will provide it as a matter of course if it is requested at contract stage. Adding reporting to a contract already running is harder. Ask for it in the scope. Inductions in larger buildings take lead time a same-week booking cannot absorb.

Photographic records help on sites with recurring disputes. Before and after images of problem areas settle questions about whether a mark predates a tenancy or arose during it, which matters at lease end on a commercial tenancy where make-good obligations can be substantial. Capturing the images costs nothing and occasionally proves worth a great deal.

Make-good clauses at the end of a commercial lease frequently reference carpet condition. A tenant with a documented maintenance history is in a far stronger position than one arguing from memory, and the cost of restorative cleaning at lease end is smaller than the cost of a disputed make-good claim. Keep the records for the whole term. They are the evidence that matters.

AS 3733 is the reference document for maintaining textile floor coverings and the one professional operators cite. It sets out appropriate methods by fibre and construction, is published through standards.org.au, and is frequently named in manufacturer warranty conditions. An operator who cites it is signalling how they work. It belongs in a commercial scope.

Access Hours and Drying Before Staff Return

Access is the constraint that shapes commercial carpet work more than any other. Most sites cannot be cleaned during trading or business hours, which pushes the work into evenings, nights and weekends, and that attracts a loading of 15 to 40 per cent depending on how unsociable the hours are. A floor plan drawn before a fitout no longer describes the space.

The cheapest slot is usually a weekday evening. Friday nights and Sundays cost more, public holidays more again, and a site that can offer a Tuesday evening rather than insisting on Saturday will pay meaningfully less for identical work. Flexibility is worth real money here. Ask what the operator's cheapest window looks like.

Drying has to finish before staff return and that governs method selection. Encapsulation is usable within an hour or two, whereas hot water extraction on a Melbourne winter night in a sealed building can still be damp at 8am, which is why restorative work is often scheduled for long weekends. Air movers shorten the drying window considerably. Building air conditioning running overnight helps more.

Access logistics in larger buildings need arranging in advance. Booking the dock, arranging after-hours lift access, issuing security passes and completing inductions all take lead time, and an operator turning up to find they cannot get equipment upstairs has wasted a night's labour that somebody pays for. Arrange the access before anything else. It is the most common cause of a failed commercial attendance. A walk-through catches obstructions a plan will never show.

Business continuity matters as much as the clean. Sectioning a floor so half is cleaned each visit lets a business keep operating without a full shutdown, and staged cleaning is standard practice on sites that cannot close. Raise staging early in the conversation. It affects both the schedule and the price.

What Belongs in a Scope of Works

A commercial scope of works is the document that makes quotes comparable, and writing a clear one repays more than collecting extra quotes. It should state the measured area, identify the zones and their frequencies, name the method for each, and set out what is included in each attendance. A vague scope produces three different jobs at three different prices.

Spot and spill response should be defined instead of assumed. Whether spills are attended within the scheduled visit or attract a separate call-out at $90 to $200, and what response time applies, are questions that only become urgent after a spill in a reception area, which is the wrong moment to negotiate. Agree the response terms in advance. It costs nothing at contract stage.

Furniture handling needs a clear position. Whether the operator moves desks and chairs, cleans around them, or works with a facilities team moving items ahead of the clean determines both the price and how much of the floor gets treated, and vague wording here produces disputes later. Put the furniture position in writing. Cleaning around obstructions leaves a patchwork.

Reporting requirements belong in the scope on larger sites. A simple attendance record noting date, areas treated, method used and any issues found gives a facilities team a maintenance history, supports warranty claims and evidences the service was delivered, and most operators will provide it if asked. Request the reporting when the contract is drafted. Retrofitting reporting into a running contract is harder.

Contracts, Tendering and Reviewing

Annual contracts price better than ad hoc work and the discount reflects certainty, not generosity. An operator with a scheduled quarterly booking can plan labour and equipment around it, which typically produces a rate 10 to 20 per cent below the same work booked one visit at a time. Response times for spills are cheapest to agree before one happens.

Term length is a genuine negotiation point. A twelve month agreement suits most sites, longer terms can secure better rates where the relationship is proven, and a business locking into three years with an untested operator has limited recourse if standards slip. Build a review point into any longer term. An annual review with a break clause protects both sides.

Tendering works best with a scope that leaves nothing to interpretation. Issuing the same measured area, zone map, frequency schedule and reporting requirement to three operators produces three comparable prices, whereas inviting quotes on a vague brief produces three different jobs at three different prices. A tight scope does the work, and comparison becomes straightforward once it exists.

Consumer and contract protections still apply to commercial services in defined circumstances. Australian Consumer Law extends to many business-to-business transactions below the relevant threshold, and the framework is explained by the ACCC, with Victorian business guidance available through Consumer Affairs Victoria. Keep the contract and the attendance records together. They are what any dispute turns on. Attendance records are what support a warranty claim years later.

Safety and Site Obligations

Commercial carpet cleaning carries workplace obligations that residential work does not, and a business engaging an operator has duties of its own. Wet floors, trailing leads, chemical handling and after-hours lone working all need managing, with the framework administered by worksafe.vic.gov.au.

Wet floor signage and area isolation are basic requirements. A damp carpet at a stair nosing or a lift threshold is a genuine slip hazard, and an operator who barriers the area and signs it properly is protecting your business as well as their own. Watch how the crew sets up on the first attendance. It tells you how they work. Certificates of currency lapse, which is why the renewal date belongs in a diary.

Safety data sheets should be available for every product used on site. A facilities team is entitled to know what chemistry is being applied in an occupied building, particularly where staff have sensitivities, and any established operator produces the documentation without hesitation. Ask for the sheets at contract stage. Keep them with the site records.

Certificates of currency need checking at the start and again each year. Public liability cover is the baseline, workers compensation applies where the operator has employees, and certificates of currency expire, which is why many facilities teams diarise the renewal date. Check the certificate covers the work being done. Some policies carve out particular activities, so read the schedule.

Site induction requirements vary widely between buildings. Larger Melbourne commercial buildings run their own induction processes for contractors, and a new operator may need to complete one before their first attendance, which takes lead time that a same-week booking does not allow. Factor it into the start date. It delays more first attendances than anything else.

Sector Requirements

Different sectors ask different things of a carpet programme and the differences are substantial. An office is a straightforward appearance and hygiene proposition, whereas childcare, aged care and healthcare settings carry infection control expectations that shape both the products used and the drying requirement. Signage at a stair nosing is a small thing that prevents a large claim.

Childcare and early learning centres need low-residue outcomes and full drying. Children spend time directly on the floor, which raises the significance of chemical residue and of moisture, and centres generally schedule cleaning for closure periods instead of overnight. Sector guidance for early years settings sits with health.vic.gov.au. Confirm the products suit the setting.

Aged care and healthcare add infection control and continuity requirements. Areas cannot always be closed, residents may be present throughout, and drying times matter more where mobility is limited and a damp floor is a fall risk, all of which suits low-moisture methods on shorter cycles. Staging is essential in these settings. Raise the question of staging before anyone puts a price on the work.

Hospitality carries the heaviest soil load of any sector. Food, drink, grease and very high footfall combine to soil carpet faster than any office, and venues generally need interim cleaning monthly or more often with restorative work on a much shorter cycle than a commercial average. Rapid spot response matters more in hospitality than anywhere, and individual marks are covered at carpet stain removal. Hard surfaces are covered at pressure cleaning. Infection control expectations shift both the products and the drying plan.

Retail sits between the two and is driven by presentation. A shop floor is judged on appearance daily, entry zones take the brunt of street soil, and trading hours leave a narrow cleaning window, which usually points toward frequent encapsulation with restorative work scheduled around quieter trading periods. Timing around trade is the main constraint. Retail cleaning almost always happens overnight.

Owners Corporations and Common Property

Common property carpet in Victorian apartment buildings is the owners corporation's responsibility, and corridors, lobbies and stairwells are among the hardest working carpet in any building. They take every resident, every visitor and every delivery, with no opportunity to close for cleaning. Aged care and childcare both push the work toward low-moisture methods.

Budgeting sits within the owners corporation fees and benefits from being planned. Carpet maintenance scheduled as a recurring line item is easier to fund than an unexpected restorative clean voted on at a general meeting, and a maintenance plan supports the case for the expenditure. Frame the spend as preservation of an asset. Replacing corridor carpet is far more expensive than maintaining it.

Access in residential buildings has its own pattern. Work has to avoid unreasonable hours for residents while still allowing drying before morning traffic, which typically means late afternoon or early evening rather than overnight, and notice to residents is usually expected. Coordinate the timing with the building manager. Related common property work sits at owners corporation and strata painting.

Lift lobbies and entry points deserve disproportionate attention. These are the areas prospective buyers and tenants see first, they carry the heaviest soil, and keeping them presentable does more for a building's perceived condition than cleaning every corridor equally. Weight the programme toward those areas. It is the best value in a common property budget.

Melbourne Buildings and Access

Competition among commercial operators across metropolitan Melbourne keeps rates keen and makes three comparable quotes easy to obtain. What separates quotes is usually access and scheduling rather than the base rate, since a CBD tower with dock bookings, security escorts and restricted lift access is a fundamentally different job from a suburban office park with a car park at the door. Building type drives the cost more than the postcode does. Trading hours are the constraint that shapes every retail booking.

CBD work carries costs that suburban sites never see. Loading dock windows, freight lift bookings, after-hours security escorts and building inductions all consume time before any cleaning starts, and operators who work the towers daily price that accurately. A quote given without knowing the building is unreliable. Name the address when you request one.

Older converted buildings in the inner suburbs bring their own complications. Narrow stairs, no service lift, timber floors under the carpet and limited power availability all slow the work, and equipment that suits an open modern floor plate may not be usable at all. Mention the building age and access. Building age changes what equipment can be used, and timber floors beneath old carpet are handled at floorboard repair and replacement.

Suburban office parks are the most economical commercial floors to maintain. Ground level access, parking beside the door, large uninterrupted floor plates and flexible after-hours arrangements let an operator work efficiently, which is reflected in both the rate and the ease of scheduling. Common property carpet takes every resident, visitor and delivery.

Regional Victoria

Regional commercial rates reflect travel and the depth of the local market. An operator covering a district builds driving time into every attendance, and in smaller centres there may be limited providers with commercial grade equipment, which affects availability as much as price. Find out which day of the month they cover your area. Fitting into a scheduled run reduces the cost.

Multi-site businesses can use regional geography to their advantage. A retailer or agency with several branches across a region can have them serviced in one run, which spreads the travel across every site and produces a rate closer to metropolitan levels than any single site would achieve alone. Bundle the sites into one agreement. It is the largest regional saving available. Lift lobbies are the first thing any visitor to a building judges.

Inland Victoria dries a floor faster than the metropolitan area does. Lower humidity through the central and northern districts shortens drying time, which widens the available access window and reduces reliance on air movers. Gippsland behaves more like Melbourne, and coastal humidity is why.

Regional sites often carry a heavier soil load than metropolitan equivalents. Unsealed car parks, agricultural dust and mud in wet months put more material through the door than a city footpath does, which usually justifies a shorter interim cycle. Matting earns more in these locations than anywhere. Matting is the cheapest correction a regional site can make.

What to Look Out For

Get the measured area and the method agreed before comparing any prices, because commercial work is quoted per square metre and the two variables move independently. Encapsulation runs $1.50 to $3.50 and restorative extraction $3 to $7, so a cheap quote may simply be the lighter process, and a floor that needs extraction will not be fixed by a compound. Confirm how the area was calculated too, since desks, shelving and stock reduce cleanable area and a quote taken from a floor plan will not match what happens on the day.

Structure the maintenance instead of buying single cleans. A site cleaned only when the carpet looks bad needs full restorative work every time, while the same floor on a quarterly interim programme stays presentable and defers that expense for years. Weight the frequency toward the zones that actually soil, since traffic lanes, entries and lift lobbies take several times the load of a quiet corner. Contract pricing typically runs 10 to 20 per cent below ad hoc for identical work. CBD towers charge the site nothing but cost the operator hours.

Settle access and drying before booking, not after. Most sites can only be worked outside business hours, which carries a 15 to 40 per cent loading, and a weekday evening costs meaningfully less than a Saturday. Hot water extraction in a sealed Melbourne building on a winter night can still be damp when staff arrive, so match the method to the window available. Dock bookings, lift access, security passes and building inductions all need arranging in advance, and an operator who cannot get equipment upstairs has wasted a night that somebody pays for.

Check insurance, safety data sheets and signage before the first attendance. Public liability cover is the baseline and certificates of currency expire, so diarise the renewal date instead of filing the document once. A facilities team is entitled to safety data sheets for every product used in an occupied building, particularly where staff have sensitivities. Watch how the operator barriers and signs wet areas, since a damp carpet at a stair nosing or lift threshold is a genuine slip risk and how they handle it tells you how they work generally.

Find your attic stock before you need it. Spare carpet tiles from the original installation match in colour and pile in a way later purchases rarely do, since dye lots shift between production runs, and a permanently stained tile becomes a ten minute swap at $8 to $20 in labour instead of a permanent mark. Ask the operator to rotate worn tiles from traffic lanes with less used ones from under desk banks during a scheduled clean. It costs almost nothing and defers replacing the whole floor. Nothing in the state is simpler to service than a suburban office park.

What to Look for in a Quote in VIC

A commercial quote should state the measured area and how it was derived, the method for each zone, the frequency, what an attendance includes, and the access hours assumed. It should price spot response and matting separately, confirm insurance and induction status, and say what reporting is provided. Ask what the rate would be at a different frequency. Method and access assumptions are the two things most likely to separate quotes that look comparable per square metre. Multi-site agreements spread regional travel across every branch.

Send an identical brief to each operator. The measured area, a zone map with frequencies, the access window, whether furniture will be moved and any sector requirements all change the price, and a quote given on a vague description is an estimate, not an offer. A site walk-through beats a floor plan on any building over about 300 square metres. Comparing prices built on different assumptions achieves nothing.

Ask how they would structure the programme, not just what a clean costs. An operator who proposes a zoned schedule, explains where interim work should sit and identifies which areas need restorative attention is bringing judgement that a flat per metre rate does not. That thinking is the value on a multi-year site. A quote without it is a commodity price.

Settle the scope, the schedule, the access and the paperwork before the first attendance. Agree the measured area and zones, set the frequencies, book the access and induction, and collect the insurance certificates and safety data sheets. Other building surfaces are quoted separately at floor sanding and polishing and window cleaning. With those four settled, the programme runs itself.