Central air handling
- Central air handling with branches per hall or department
- Ductwork in technical shafts and basements
- Valves, dampers and control units inside the air handling unit
Ventilation cleaning · government and public buildings
Ventilation cleaning for government and publicly accessible buildings
Town halls, libraries, sports halls and community centres run on the same air handling all year round, and it is rarely cleaned in between. We schedule the work outside public opening hours, fix the scope and the reachable parts up front, and record everything that was carried out in your maintenance file.
Back to all ventilation services
- Work outside public opening hours, in consultation with the facility manager
- A fixed price up front, once accessibility has been assessed
- Photo documentation and an overview of what was and was not carried out
Overview
One installation, many spaces, one maintenance file
A public building normally runs on a single central air handling unit with branches out to the individual spaces. The air you feel in the council chamber, the office or the reading room all comes out of the same unit. What settles in it and in the main branches goes a long way towards how the room feels and how often the installation needs cleaning.
That is why we do not arrive with one standard method for every building. After the intake we assess the installation, how far we can actually reach and what the facility manager requires. We then record in advance which components will be cleaned, in which order, at what moment and with which documentation. Anything that turns out to be out of reach is named rather than quietly skipped.
- The facility manager sees up front what will happen, when the work takes place and which spaces are unavailable at that moment.
- The cleaning becomes a scheduled item in the multi-year plan instead of a reaction to a complaint.
- Every assignment produces an overview of the work carried out, the photo record and the points that remain open.
Types of buildings
Publicly accessible buildings and municipal locations
We regularly work in the building types below. These are examples of building types, not references: in principle we work in any publicly accessible building, as long as the installation can be reached and access and scheduling are properly arranged.
Town halls and council buildings
The central air handling feeds the council chamber, the committee rooms, the offices and the public counter. The building is normally in use all day, and security and the facility manager decide when and how work may take place.
- Council chamber, committee rooms and public counter
- Offices with their own control valve per space
- Basements and technical rooms housing the installation
Libraries, museums and cultural venues
Here everything depends on steady air movement and as little dust in the room as possible. Stores, stacks and collections call for an approach that does not push dirt further into the building, and for a schedule that does not get in the way of visitors.
- Reading rooms, counter and storage areas
- Ventilation above stacks, display cases and collections
- Window and façade grilles on the outside
Sports halls
In a sports hall the air handling is tied to changing occupancy and to steady air movement during training and matches. Dust and fibres build up in the ducts and around the grilles, while the hall is exactly the space that is in use.
- Public present during training and events
- Heavy load on the air handling when the hall is full
- Reach of the ducts above the hall and in the plant room
Community centres and neighbourhood venues
Small, well-visited locations with a compact installation that often sits in a cupboard or under the floor. Accessibility is limited and demands a strict agreement on timing, access and noise.
- Compact installation in a cupboard, crawl space or plant room
- Short access windows because of the centre's opening hours
- Several user groups at different times of day
Multi-purpose municipal locations
Locations where meetings, sport and socialising happen under one roof combine several air handling components with different usage moments. That calls for a plan per space rather than a single slot for the whole building.
- Several air handling components in one building
- Usage moments that differ per space
- Shared technical rooms with other managers
Installations
Where contamination concentrates in a public building
These are the installations we come across in town halls, libraries, sports halls and community centres. Which components are actually cleaned depends on how far we can reach and on the agreed scope.
Grilles and supply outlets
- Window and façade grilles in the façade
- Grilles and supply outlets in halls, offices and public areas
- Ventilation in halls, libraries and storage rooms
Technical rooms
- Air handling units and fan units in basement and roof space
- Crawl spaces with low-hanging duct connections
- Inspection panels and access openings for maintenance
A duct that can only be reached through a service shaft, a crawl space or a cut opening falls outside the regular cleaning. We name that point and leave it open, so you can decide yourself whether a more invasive approach is wanted.
What we deliver
What we carry out within this work
These deliverables form the basis of every assignment in a public building. What exactly falls within the assignment is settled in advance in the scope.
Cleaning of the central installation and the main branches
The air handling unit and the duct runs towards the spaces are cleaned as far as the components can be reached. Whatever cannot be reached appears as an open point in the overview.
Cleaning of grilles, valves and supply outlets
Grilles in halls, offices and public areas are cleaned, including the connections around them. Valves are removed, cleaned and put back in place afterwards.
Cleaning of basements, shafts and technical rooms
Ductwork in basements and technical shafts is part of the regular maintenance. We work in an agreed order and clear the corridors and stairs for visitors and staff again.
Assessment of the installation and its accessibility
On a first visit or on a repeat assignment we map which components are present, how heavy the contamination looks and what is feasible. That assessment is the basis of the quote and of the maintenance plan.
Maintenance plan with reporting for facility management
We translate the findings into a maintenance plan with repeat moments, so that the cleaning does not remain dependent on ad-hoc reports. The file we deliver afterwards is designed to fit into the facility management file.
Multi-year maintenance
Not a one-off job, but a maintenance regime with fixed moments
A public building needs a plan that the facility manager can account for. That is why we work in rounds: a fixed moment, an agreed scope and a file that shows what happened. Frequency and content of each round are decided together with the management side.
Round 1 · intake and baseline
At the start we inventory the installation: which ducts, grilles and valves are present, how visible is the contamination and what can be reached. This round delivers a baseline and an estimate.
- Inventory of the air handling and the spaces
- Assessment of accessibility and of the risks involved
- Estimate of the time required and a fixed price
Round 2 · execution
The cleaning itself takes place in an agreed order and outside public hours, escorted by the facility manager at their request. For each space we state what was done and what remains open.
- Cleaning per space in an agreed order
- Execution while there is no public access
- Returning the space to its original state
Round 3 · evaluation and planning
At the end of a cycle we discuss the results, the points that remained open and the plan for the next round. Open points get their own line in the maintenance file, so that they do not disappear between files and diaries.
- Discussion of the results and the open points
- Adjusting the frequency and the seasonal moments
- Recording the next round in the maintenance plan
Together with the facility manager we draw up a multi-year schedule with a repeat moment per round. You set the intensity; we translate that into a working method, a schedule and a set-up for the file. What fits within it depends on the installation and on the available budget.
How the intervention is organised
Working while the public is present
In a public building the question is not only what gets cleaned, but how the work fits into daily operations. We agree the points below with the facility manager in advance, so that there are no surprises on the day itself.
Access, keys and escort
We agree in advance who escorts us, which spaces we enter at which moment and how access and keys are arranged. In buildings with a security regime we align those agreements with the security rules.
A work slot outside public access
The work takes place at moments when there is no public present. If that is not possible for a particular space, we agree on a different approach: working space by space, with signage and with advance notice to the facility manager.
Protecting the surroundings
We cover floors and adjacent spaces, put up signage and keep the routes for visitors and staff clear. Dust and dirt stay as much as possible within the agreed working area.
A clear finish per space
For each space we state what was done and what is still open. The facility manager then does not have to reconstruct afterwards what happened, and questions from visitors can be answered straight away.
Clearing up and handing back
Afterwards we clear up, check corridors, stairs and toilets and return the space to its original state. A space is handed over together with the facility manager.
File and documentation
What you can record in the maintenance file
For a public building the cleaning has to be traceable: who did what, where and when. That is why we deliver an overview per assignment that belongs to the work and that you can file under your own records.
Work overview with the scope
A list of the components cleaned and of the agreed conditions under which the work was carried out.
Photo record
Photos of the air path and of the points that could not be reached, or not fully.
List of open points
Accessibility issues, damage or follow-up work that fell outside the assignment are stated explicitly instead of being quietly skipped.
Advice on frequency and scheduling
Based on what we observed we advise on frequency and on seasonally dependent moments. This is advice: the maintenance policy and the choice of intensity stay with the facility manager.
One point of contact after handover
We remain reachable for questions about the work carried out, also when those only come up later in the maintenance file.
These photographs show the components as we encounter them in practice. They are not intended as evidence of a specific assignment or location and they are not a before-and-after comparison.
Limits and conditions
What we do and do not promise
These conditions belong to every assignment. They are on the page deliberately, so that nobody is left with an expectation we never announced.
- Public spaces are not cleaned while the public has access, unless that has been agreed and the situation allows it.
- We do not deliver certification, an inspection certificate or a quality statement; we deliver the cleaning and the reporting.
- Alignment with the facility manager and with any permit holders is a condition for carrying out the work.
- Ducts that can only be reached through a service shaft, a crawl space or a cut opening fall outside the regular cleaning.
- We do not work on electrical installations, controls or fire detection unless that has been explicitly agreed.
- Worn or damaged components are not replaced; that is a separate supply that is agreed in advance.
- This cleaning is a maintenance action. We make no statement about air quality or about microbiological effects.
Frequently asked questions
Questions facility managers usually ask us
Do you work during the building's opening hours?
In principle not. The work is scheduled for moments when no public is present. When that is not possible for a particular space, we agree an approach per space in which the space is closed off temporarily and the facility manager is informed in advance.
Can you quote for multi-year maintenance?
Yes. After an intake and an assessment of the installation we draw up a plan with repeat moments and a fixed price per round. The intensity and the moments are decided together with the management side.
What do we need for a reliable quote?
An overview of the spaces with grilles, access to the technical room and, if available, the current maintenance or cleaning plan. Photos of the air handling unit and the ductwork speed up the assessment and make the estimate more accurate.
Do you deliver an inspection certificate?
No. We deliver the cleaning and the documentation of what was carried out. An inspection certificate or certification falls outside our work and is not promised.
What happens to parts we cannot reach?
Then we name it. Unreachable ducts are not broken open; the point appears as an open item in the overview, so that you can decide whether a more invasive approach is wanted or whether the point stays as it is for now.
Can you also handle filters and periodic filter replacement?
Filter inspection and filter replacement belong to the regular maintenance and can be part of the multi-year plan. We align the concrete set-up and the frequency within the maintenance plan, so that it stays part of the existing management cycles.
Quote and planning
Request a quote for your building
Send an overview of the spaces and, if you can, photos of the air handling unit and the grilles. We assess the installation, align the planning with your facility manager and come back with a concrete scope and a fixed price.
What you can send us
- An overview of the spaces with grilles and supply outlets
- Photos of the air handling unit and of the ductwork
- Access possibilities, opening hours and the contact details of the facility manager
- The current maintenance plan, if one already exists