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Disinfection in Darzciems

A district of mixed use — streets of detached houses next to warehouses — so two neighbouring addresses here can be two completely different jobs.

Mixed building stock — mixed jobs

Darzciems lies between Purvciems, Plavnieki and Skirotava, and its building stock is mixed: streets of detached houses, blocks of flats, warehouses and commercial sites in one place. In practice that means two neighbouring addresses can be two different jobs with two different ways of pricing them.

We carry out mould removal, odour removal, ozone treatment and treatment after flooding, a failure, a change of tenants or long vacancy. We have no premises and no staff in the district — we travel out on request.

The first question in an enquiry is the type of property, not the district. Both the inspection and the price follow from it.

In a house: from the roof downwards

In a private house the path of moisture almost always starts outside and ends inside. So we start the inspection from the outside and work downwards — from the edge of the roof to the ground around the foundations.

✓ What to check yourself before you call

  • Whether the gutters are clear and the downpipe carries water away from the house.
  • Whether the ground at the foundations slopes away from the building.
  • Whether the roof covering and the area around the chimney are sound.
  • Whether there are dark marks or damp insulation in the attic after rain.

✗ What we do not do

  • Waterproofing and drainage.
  • Roof and gutter repairs.
  • Installing ventilation or heat recovery.
  • Assessing the condition of load-bearing structures.

If the inspection shows the cause is in the structure, we say so and do not start treatment while water is still coming in. Treatment on a wet wall is work with a short shelf life. See treatment of a private house and causes of mould.

The cellar and the lower ground floor

In an older house the cellar is often a separate job rather than a continuation of the house. The air there is cooler and damper, the walls can draw rising damp from the ground, and a smell from down there travels up through the stairwell and the service routes.

1Rising dampPatches and salt efflorescence in the lower part of the wall, up to roughly a metre. It comes from below and does not disappear with airing alone.
2CondensationMoisture on cold pipes and the upper part of the wall in the warm season. This is sometimes caused by airing at the wrong time — warm outside air on a cool surface.
3A leakClearly bounded wet around one spot, growing after rain or after water is used. A plumber first, then us.

These three can be told apart on site, and that is the main purpose of the inspection, because each is followed by different action. In more detail: mould in the cellar, inspection from €40.

Warehouses and commercial premises

On the commercial side of Darzciems the properties are different: warehouses, service and retail units. There the price is set by area rather than by the number of rooms, and the work is planned around the opening hours of the space.

  • Give the area in square metres — up to 100 m² €1.20/m², 100–300 m² €0.90/m², 300–1000 m² €0.70/m².
  • Agree access in advance and who will unlock the space.
  • Say how long the space can be left out of use after treatment.
  • A large property can be split into zones over several visits.

Traffic in the Darzciema and Lubanas street corridor is heavy, so we plan by address rather than by district name. We work the same way in the neighbouring districts: Purvciems and Plavnieki. See also warehouse treatment.

What to prepare before the visit

In a district of mixed building stock most of the time usually goes not on the work but on finding the place and getting in. A few things said in advance remove that entirely.

  • The type of property: detached house, flat or commercial space — the whole calculation starts there.
  • The area in square metres or the number of rooms, depending on the property.
  • Whether there is a cellar, lower ground floor or attic that also has to be looked at.
  • Whether there is a gate, a barrier or animals on the property.
  • Whether the property can be left empty during treatment.

Before we arrive it helps to clear access to the walls with the patch, empty the cupboards along the external walls and take houseplants and pets out. Do not paint over the patch or scrub it with bleach — paint seals the growth underneath and makes it harder to reach later. If the symptom is visible, photograph it while it is.

What the season changes

In the streets of detached houses the symptoms are seen most often in autumn and spring: after long rain and after snowmelt, when the ground is saturated and the foundations take up moisture. In summer that same cellar can look dry, and that is exactly why it is worth inspecting while the problem is visible.

In warehouses and on commercial sites the seasonality is different: there the heating regime matters, not the outdoor humidity. In an unheated space a rapid warm spell produces condensation on cold surfaces regardless of whether it is raining outside.

When another trade is needed first

In mixed building stock the causes are mixed too, and some of them are not our work. The inspection then ends with a description you can take further, rather than with treatment.

Where we start

  • A dried-out wall with a visible patch.
  • A smell after tenants, long vacancy or a failure, once the source is gone.
  • A cellar where water no longer comes in.
  • A commercial space that can be left empty for an agreed period.

Where somebody else starts

  • A leaking roof or a damaged gutter — a roofer.
  • A burst or blocked pipe — a plumber.
  • Rising damp from the ground — waterproofing.
  • In a block of flats, a shared wall or riser — the building manager.

Treatment removes the growth, but it does not replace the repair that removes the cause. If nobody says that before the work, the work has to be done again. See inspection from €40.

Prices

Flats: 1-room from €55, 2-room from €65, 3-room from €75, 4-room from €85. Private houses from €95. Commercial premises: up to 100 m² €1.20/m², 100–300 m² €0.90/m², 300–1000 m² €0.70/m². Mould: inspection from €40, treatment from €1.50/m², minimum from €80. Ozone treatment €1.20/m², minimum €60.

In Riga travel is included in the price. All prices →

Related pages

Frequently asked questions

How do you tell rising damp from a leak in a cellar?

Rising damp is spread across the lower part of the wall, up to roughly a metre, often with white salt efflorescence. A leak is clearly bounded around one spot and grows after rain or after water is used. The first needs waterproofing, the second a plumber; treatment comes afterwards.

The property has both a living part and a separate warehouse space. How is the price calculated?

Separately. The living part by type of property — private houses from €95. The warehouse or commercial part by area: up to 100 m² €1.20/m², 100–300 m² €0.90/m². If both are in the same call-out, say so in your enquiry.

Do you also carry out repairs if the cause of the damp is in the structure?

No. We do not do waterproofing, drainage, roof and gutter repairs or installing ventilation. If the cause is there, we record it in the inspection notes and say what has to be sorted out first — treatment without that is short-lived.

Not sure which treatment you need?

Describe the situation — we will tell you whether treatment is needed at all, and which one.

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