Air duct cleaning in Almere

Which sectors in Almere call for clean ventilation ducts?

With 226,500 inhabitants, Almere is the eighth largest municipality in the Netherlands by population (CBS 2024, rank 8 of 342). Its urbanisation level is 2, so strongly urban, with a density of 1,753 inhabitants per km². The 31,655 establishments are divided as follows, and per sector you can see which type of duct needs the most attention.

Did you notice that government, education and care together make up more than a fifth? That is exactly the group where air quality weighs most heavily, because children, patients and older people spend long periods there.

Newly delivered ducts: why construction dust is an underestimated problem

A common belief among building managers: the building is only a few years old, so the ducts are clean. The RVO Frisse Scholen (Fresh Schools) guide says something different. It states that air ducts in newly delivered schools turn out to be contaminated with construction dust, and that is an argument for an inspection at handover. What applies to schools applies in principle to every new building: sawdust, plaster dust and packaging remnants easily end up in open duct sections during construction.

For managers of recently delivered property, this means you should not postpone the first inspection until complaints arrive. A camera inspection straight after handover shows whether construction debris is present. If there is something, you clean with a rotating brush and keep the duct section under negative pressure, so that the loosened dust is not blown into the room.

• At handover, have it recorded which duct sections were inspected.
• Ask for photos or camera footage of the supply ducts.
• Check whether there are inspection hatches so you can get in later.

Ductwork cleaning Almere in schools and care: what do the rules require?

A few concrete arrangements apply to schools. Every classroom in primary, secondary and special education must have a CO₂ meter (Building Works Living Environment Decree (Bbl) article 3.143). The Frisse Scholen programme of requirements has three ambition levels, with CO₂ limits of 1,200, 950 and 800 ppm for class C, B and A. Frisse Scholen also asks for periodic technical and hygienic maintenance of climate installations. A contaminated duct or clogged filter makes it harder to achieve those values.

Employers in all sectors also have Working Conditions Decree (Arbobesluit) article 6.2: there must be sufficient uncontaminated air at the workplace and the air renewal installation must always be ready for use. For care organisations the hygiene side is added to that. More on this is under air duct cleaning in schools and, for elderly care, under nursing homes and care homes. The background of EN 15780:2025, which replaces the 2011 version, is under duct cleaning standards for cleaning contractors.

Which machine suits the ducts in your building?

The choice depends mainly on diameter, length and the number of bends. Below are the options from the range, with the specifications as Lamers and Danduct Clean publish them.

For a maintenance team that manages several school sites, the Electric DC4 brushing machine for businesses is often the starting point: the steel shaft keeps the brush in the centre of the duct and the left to right system rotates automatically. If you want to see all options side by side first, look at the full range of compare duct cleaning kits for businesses. For the PD2, Lamers provides the specifications itself.

Five steps to a ventilation check at handover

1. Request drawings. Without a duct drawing you do not know where the hatches are. Eurovent advises inspection openings no more than 10 metres apart, or no more than two bends of 45 degrees or more between them.
2. Camera inspection. Look at supply and extract, especially after the air handling unit.
3. Assess. Check what you see against EN 15780. According to trade publications, medium risk buildings such as schools and offices use a dust limit below 3.0 g/m².
4. Clean under negative pressure. Seal off the duct section and extract. If the extraction unit exhausts indoors, HEPA with 99.97% at 0.3 µm is the starting point.
5. Record. Take photos before and after and note which sections are finished.

This step by step plan is also a good basis for a long term maintenance schedule: you immediately have a baseline measurement.

Three misconceptions about ventilation in recent buildings

"With new filters the ducts are clean too." Filters capture dust from the moment they are fitted. Whatever was already in the duct during construction stays there.

"The CO₂ meter shows green, so the ventilation is fine." CO₂ says something about the amount of fresh air, not about dust or microbiological contamination in the ducts. Milieu Centraal (Dutch public information centre) points out that moulds and bacteria can be blown along with the air when filters are dirty.

"Cleaning is something for ten years from now." There is no fixed legal term for non residential buildings. EN 15780:2025 works with inspection intervals per cleanliness class, expressed in months. Inspecting from the start prevents you from having to plan a complete cleaning round later.

Ventilation duct cleaning Almere: advice and quotes from Zelhem

Lamers Reinigingstechniek is a family business in Zelhem that has been supplying professional cleaning equipment for more than 50 years. There is no branch in Almere; you arrange advice and quotes by phone, by email or through the form. On the product pages you can request a quote, request a callback or ask a question.

If you also work in the region around the capital, look at air duct cleaning in Amsterdam or at ductwork cleaning for Utrecht businesses. The overview of all municipalities is under all cities for air duct cleaning. If you already know which diameters and lengths you have, you can contact Lamers for cleaning contractors straight away.