BREREI NordWest – Gebäude- & Industriereinigung
Post-construction cleaning on a new office floor: vacuuming building dust and cleaning windows

Construction cleaning in Bremen: rough, intermediate and final cleaning before acceptance

Every phase has its own completion criterion. The greatest risk is damage to trades that are already finished – not the time involved.

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Discuss your construction site

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Construction and specialist cleaning
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Mo–Fr 07:30–17:30 Uhr
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0421 87757597Discuss your construction site

In short

Construction cleaning runs in three phases, each with its own completion criterion: rough cleaning creates safe routes during shell and fit-out work, intermediate cleaning establishes the adhesion for the next trade, final cleaning the condition that is assessed at acceptance. The sequence is decisive: final cleaning must be the last work step. The biggest cost risk is damage to finished surfaces, not time.

Problem und Lösung

The challenge

The trigger is almost always a date that cannot be moved: the acceptance on Friday, while other trades are still working; a tiler who needs a dust-free substrate for the adhesive to hold at all; mortar splashes on glass that have already led to a complaint about scratches. The client's problem is therefore not a cleanliness problem but a scheduling and liability problem: construction cleaning is the last buffer before acceptance and at the same time carries the risk of introducing damage into finished trades.

Our solution

First the construction schedule and the acceptance date are compared, then the areas are recorded and the completion criterion is fixed for each phase. Within final cleaning the order is from top to bottom and from inside to outside: coarse clearing, fine dust extraction before any wet work, windows and rebates, floors including cement haze and neutralisation, sanitary areas, details, room-by-room final inspection. Conditions that do not allow a defect-free result – such as a screed that is not yet ready for covering – are recorded in writing before the work begins.

Our three construction cleaning services

Site containers, interim and final cleaning – the three phases of construction cleaning across the build.

  1. 1

    Site container cleaning

    Cleaning of the site containers on the construction site, from the start of the build.

  2. 2

    Interim cleaning

    Cleaning during the build, before demanding follow-on trades such as screed, flooring or painting.

  3. 3

    Final cleaning

    Fine cleaning right before acceptance – cement haze, windows and sanitary areas, ready for handover.

Scope of service

  • Rough construction cleaning: collection and sorting of construction residues, rubble and packaging, coarse dry sweeping. The completion criterion is free, drivable routes without trip hazards.
  • Intermediate construction cleaning: fine dust extraction and removal of plaster and mortar splashes from the surfaces to be coated. The completion criterion is the adhesion for the trade that follows.
  • Final construction cleaning: windows and frames inside and out, rebates and drainage slots, floors, sanitary areas, doors, door frames, skirting boards, switches and fitted furniture.
  • Floors including the removal of cement haze and subsequent neutralisation – only after dry extraction, so that dust does not turn into sludge.
  • Stripping of ingrained adhesive and film residues after UV exposure, including the early peeling off of aged protective films.
  • Smoke detectors, luminaires and installed components: dusting without moving or dismantling them.
  • Building services and electrical installations: dusting of cable trays, switches, radiators, inspection covers and outlets.
  • Scope boundary: remaining work of other trades, disposal of rubble from the construction process, remedying defects on components and work on installations are not part of the service. Whether residual materials from the cleaning process are taken over and how they are evidenced belongs in the quotation as an item of its own.
  • Room-by-room final inspection with a defect record and agreement with the site management before the condition is handed over.
  • Bauendreinigung and Bauschlussreinigung are the names construction contracts normally use for the stage we call Baufeinreinigung. The term comes from the contract framework (VOB/C, DIN 18353 construction cleaning) and not from any statutory requirement. At handover what counts is therefore what the contract's specification says, not the label on its own.

Typical subservices

  • Rough construction cleaning
  • Intermediate construction cleaning before the following trade
  • Final construction cleaning before acceptance
  • Window, frame and rebate cleaning
  • Removal of cement haze and construction residues
  • Dust removal from building services and installed components
  • Room record and final inspection
  • Bauendreinigung and Bauschlussreinigung (final construction clean)

Suitable for

  • Residential construction – individual flats, stairwells, underground car parks and external areas before handover to tenants or buyers.
  • Office and administrative buildings – open-plan offices with glass façades, raised floors, suspended ceilings and extensive electrical installations.
  • Education facilities – schools, daycare centres and university buildings with sanitary areas and sports surfaces.
  • Healthcare buildings – practices and care facilities with increased hygiene requirements for the final clean.
  • New commercial and logistics buildings – large areas with a low fit-out standard and a correspondingly high cleaning share.
  • Refurbishment and revitalisation in the existing stock – flat handovers and floor sections where the building stays in use during the work.

Your advantages

Tailored to this service – aligned with site and industry.

  • The risk is the damage

    An extra hour of work is a costing problem. A scratch in a coated pane, etch damage on calcareous natural stone or a discoloured chrome fitting is not. Method and tool therefore follow material compatibility, not effect.

  • Three phases, three criteria

    “Finished” means something different in each phase: free routes in rough cleaning, an adhesive substrate in intermediate cleaning, a condition ready for acceptance in final cleaning. Anyone who mixes these up has the wrong trade working at the wrong time.

  • Final cleaning last

    Acceptance is a contractual act and assesses the condition at its own point in time. Final cleaning must therefore come after all other trades – anyone who still pulls cables or assembles furniture afterwards produces dirt in a condition that was ready for acceptance.

Process

How your project runs

  1. 1

    Record the construction schedule and the acceptance date

    A site visit with the site management: areas, floors, access, surfaces and the state of the other trades are recorded.

  2. 2

    Fix the phases and completion criteria

    For each phase it is recorded what triggers it and what “finished” is measured against. That is the basis of every costing.

  3. 3

    Clarify concerns before execution

    Conditions that do not allow a defect-free result – a screed not yet ready for covering, unfinished neighbouring areas, missing access – are communicated and recorded in writing before the work begins.

  4. 4

    Keep to the sequence

    Coarse clearing, fine dust extraction, windows and rebates, floors, sanitary areas, details. Wet work only starts once the fine dust has been extracted.

  5. 5

    Room-by-room final inspection and documentation

    Final inspection with a defect record, photographic documentation and a room record, so that it stays traceable after the handover which condition was handed over.

Methods and equipment

  • Three phases with different triggers: rough cleaning follows construction progress and safety on the routes, intermediate cleaning follows the next sensitive trade or one that depends on adhesion, final cleaning follows the acceptance date.
  • Within final cleaning the rule is “from top to bottom and from inside to outside”. Wet work only starts once the fine dust has been extracted – otherwise dust turns into sludge.
  • Mineral particles on glass are softened and removed at a shallow angle with a suitable tool. Dry rubbing of mortar residues produces scratches that are later claimed as a defect.
  • Before every application the question is material compatibility, not effect: acidic cement haze removers attack calcareous natural stone and can damage chrome-plated fittings.
  • Young screeds and fresh coatings do not get too much water. The point at which they are ready for covering is a specification of the trade that installed them, not an assumption of the cleaning contractor.
  • Water in electrical installations – from the socket to the distribution board – is a job for a qualified specialist, not for a wet vacuum.

Technical and legal framework

This service sits within a framework of statutory duties, technical rulebooks and operational practice. The distinction matters because it determines who is responsible for what.

Acceptance as a contractual act
What is assessed is the condition at the point of acceptance. With acceptance the risk passes to the client, the defects liability period begins, and the burden of proof for defects that become apparent later shifts. For planning this means that final cleaning has to be the last work step and that the condition handed over has to be recorded in a room record.
VOB/C and DIN 18299
The VOB/C is a private technical rulebook and not a law. It becomes binding when it is incorporated into the construction contract, when a legal provision refers to it, or when it carries a presumption effect. The general basis for construction work of any kind is DIN 18299. Whether DIN 18353, additionally named in the source matrix, is to be allocated to construction cleaning is not presented here as a fact. Technical review of the standard in its full text is required.
Concerns belong before execution
If the contractor finds conditions that do not allow a defect-free result, that has to be communicated before the work begins and recorded in writing. If this is missed, the contractor carries the discussion about the defects. The right to raise concerns before execution therefore belongs in the clarification of the order and not in the renegotiation.
Safety where trades are still running
DGUV Vorschrift 1 binds the contractor as a member business and governs cooperation when several employers are working on the same area. Construction site cleaning regularly takes place alongside running trades; coordinating traffic routes, barriers and escape routes is therefore part of the service and not an accessory to it. The DGUV Regeln describe the state of the art in this respect without being a legal norm.
Hazardous substances
For cleaning and stripping agents the Ordinance on Hazardous Substances applies with its duties on labelling, safety data sheets and protective measures. What is binding here is the law, not the manufacturer's product description. Technical review of the standard in its full text is required.
Dust in building services installations
Anyone who touches outlets, ducts and inspection covers after the final clean carries the dust back into the room that has just been cleaned. Coordination with the ventilation and electrical work therefore belongs in the planning of the final clean. For the cleaning of air ducts themselves DIN EN 15780 and VDI 6022 apply – a private standard and a VDI guideline, not legal norms.

The rulebooks named here describe requirements for how the work is carried out – they are not a certification held by BREREI. VDI and DIN normative texts are chargeable and were not available in full; where a statement touches the normative detail, this is noted in place.

What determines the interval

  • Not an interval but phases: rough and intermediate cleaning follow the construction schedule and the project milestones, not the calendar.
  • Number of trades involved: the more trades work one after another, the more often intermediate cleaning becomes necessary.
  • Sensitivity of the surfaces: natural stone, coated glass, fair-faced concrete and oiled timber require preparatory and follow-up work.
  • Weather and season: in rain and cold, more dirt travels into the building; protective films age faster under high UV exposure.
  • Type of use of the building: healthcare buildings and education facilities require a more elaborate final clean.
  • The client's specifications: some developers fix intermediate cleaning as a firm item in the construction schedule, others call it off as needed.
  • Property size and subdivision: on large projects the handover is done floor by floor or section by section, and every handover has its own cleaning window.

What determines the effort and the quotation

  • Point in the construction process: the same room is a completely different task as a building site and as a handover object
  • Number of deployments: one phase in a single run or in several sections with construction activity in between
  • Type of soiling: cement haze, gypsum filler, adhesive residues, film remnants and silicone streaks are each their own task with their own time requirement
  • Sensitivity of the surfaces: it determines the method and therefore the speed – gentle is almost always slower
  • Number and size of the window surfaces: in many properties the most elaborate single item, because frames, rebates and drainage slots are cleaned too
  • Accessibility and set-up time: number of floors, lift availability, stairwells, raised floors, suspended ceilings, shafts, plus travel and assembly
  • Trades running in parallel: waiting times, closures and the risk that work continues after the cleaning
  • Your preparation: construction schedule and acceptance date, the delimitation of areas as a plan rather than a verbal instruction, information on covering types and readiness for covering, access, utilities, disposal and the named acceptance criteria – missing information becomes visible in the quotation as a risk item

Applicable standards and regulations

  • Contract for work law under the German Civil Code (BGB) – legally binding; acceptance, rights in respect of defects and passing of risk
  • Occupational Health and Safety Act and Construction Site Ordinance – legally binding; cooperation of several employers
  • DGUV Vorschrift 1 – accident prevention regulation, binding on member businesses
  • DGUV Regeln on ladders, scaffolding and fall protection – DGUV Regel, not a legal norm; recognised state of the art
  • DIN 18299 (VOB/C) – private standard, binding only through incorporation into the construction contract, legal reference or presumption effect
  • DIN 18353 (VOB/C) – private standard; its allocation to construction cleaning has to be checked in the full text before it is cited
  • VOB/B – a contractual component if it has been incorporated; not a law
  • Ordinance on Hazardous Substances – legally binding; handling of cleaning and stripping agents
  • DIN EN 15780 and VDI 6022 – a private standard and a VDI guideline, not legal norms; hygiene of ventilation and air-conditioning systems

These references describe the requirements the work is performed against. They are not a certification, inspection or approval held by BREREI.

Frequently asked questions about this service

Short answers to help you assess whether this service fits your site.

What is the difference between rough, intermediate and final cleaning?

Rough cleaning accompanies construction progress and creates safe, drivable routes. Intermediate cleaning is not a visual but a technical service: it prepares the surface so that the next trade can work on it – screed, tile adhesive or a floor coating, for instance. Final cleaning is the last work step before acceptance and produces the condition that is assessed. The three phases have different triggers and different criteria for “finished”.

By when does final cleaning have to be ordered at the latest?

As early as the acceptance date is known. The problem is less the lead time for the service itself than the coordination: as long as electrical, ventilation and furniture work is not complete, the final clean cannot be completed. If it is carried out too early, follow-up work arises that nobody planned. In the contract, also set out how short-notice changes to the construction schedule are handled.

Is the VOB/C binding, and what does that mean for the quotation?

The VOB/C is a private technical rulebook and is incorporated through the construction contract – it is not a law. Quotations and service descriptions can be structured so that they match the service profiles described there. The general basis for construction work of any kind is DIN 18299. Which further rules apply in an individual case follows from your contract; an allocation to construction cleaning should be checked in the full text before it is cited.

Who is liable for a scratch in the glass that occurs during cleaning?

First the cause has to be established, and a condition survey before the work begins is decisive for that. If mortar or plaster residues are already on the glass before cleaning and damage occurs while removing them, the question of evidence can usually no longer be answered – unless there are photos. That is why the prior condition and the working method have to be documented, and why the choice of method on glass is not a side issue but the core of the service.

Can the client decide when the cleaning happens?

The client determines the acceptance date, and the planning follows it. Within that framework the sequence is technically fixed: first extract the dust, then the windows, then the floors, then the details. If other trades have to keep working after the final clean, that is not a cleaning topic but a scheduling topic – it should be raised before execution and recorded in writing.

Who provides power and water on the construction site?

Working with the contractor's own machinery and extraction technology is usual. Whether power and water additionally have to be provided depends on the state of the building: if the site power and site water have already been deregistered, a solution is needed and has to be agreed beforehand. What you should set out in the tender: who provides the utilities, where the connection points are, who bears the cost of a mobile solution and by when access is clear.

Related services

Request construction cleaning

For a reliable quotation we need the type of property, the area, the construction progress, the acceptance date and the surfaces that require particular care. The quotation is structured by rough, intermediate or final cleaning – with preparation, utilities, disposal, documentation and the boundary to other trades.

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