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Septic tanks in Riga and the Riga region - pumping, installation and maintenance

Septic tanks in Riga and the Riga region: we pump out septic tanks and holding tanks, install septic tanks and biological wastewater treatment plants (BIO plants) for private houses, maintain them and build external sewers.

Septic tank pumping
from €75
BIO plant maintenance
from €160
Septic tank installed
from €2,200
Site plan of a private plot with the house, sewer pipe, septic tank and drain field
Plot boundary
K1 sewer
Septic tank / BIO
Drain field
Typical solution for a private house Drawing · site plan septikisriga.lv

Get a price

Name, phone and address are required. The rest helps us give a more accurate price.

After you submit the form, we contact you within 5 minutes

Ground cross-section: house, pipe, septic tank in a sand layer, drain field, clay layer and groundwater

What we do

Septic tank pumping

from €75

  • Septic tanks, holding tanks, BIO sludge, grease traps
  • Tanks up to 4, 6 and 10 m³
  • Certificate after every job

Biological treatment plants

from €1,750

  • When the soil or groundwater rules out a septic tank
  • Sized by the number of people
  • Outflow to a ditch or into the ground

Sewage pump stations

from €1,650

  • When wastewater can't flow by gravity
  • Toilet or shower in the basement
  • Installation and maintenance

All services and prices → · About Septiķis Rīga →

Our prices are public

We publish our main prices openly. For pumping, the price depends on the tank volume and the distance from Riga. Work out an estimate.

Pumping calculator

Tank volume

Estimate from €75

We confirm the exact price after your request, because access and hose length can change it.

Main prices
Service Price Notes
Septic tank pumping up to 4 m³ from €75 up to 4 m³
Septic tank pumping up to 6 m³ from €90 up to 6 m³
Septic tank pumping up to 10 m³ from €110 up to 10 m³
Travel outside Riga Riga region ~€1/km Riga region
BIO plant maintenance emptying and rinsing from €160 emptying and rinsing
BIO plant for 4–6 people plant only from €1,750 plant only
Septic tank installed tank + installation from €2,200 tank + installation

All prices and examples →

Which system suits your soil?

The right solution depends on the soil and the groundwater level. Choose what your plot has, and we'll show what is usually recommended.

Soil on your plot

Septic tank with a drain field

Sand absorbs treated water well, so a septic tank and a drain field are usually enough.

About drain fields →

How septic tank pumping works

  1. We assess the tank

    We assess the tank We check the volume, fill level and access.

  2. We connect the hose

    We connect the hose The vacuum tanker parks by the tank.

  3. We pump it out

    We pump it out Wastewater and sludge go to a treatment works.

  4. We close up and tidy

    We close up and tidy We check the lid and the area around the tank.

Our prices are published: septic tank pumping starts from €75. Describe your situation in a request, and we will contact you within 5 minutes of receiving it.

Services and prices

All prices are starting prices for a typical job. The final amount depends on the volume, the distance and the access. We confirm it in a quote before the work.

Septic tank, holding tank or BIO plant - what is in your yard?

Before you send a request, it is worth knowing what system is buried on your property, because it determines both the work and how often the system needs pumping. There are three main types at private houses.

System What happens to the wastewater What has to be done regularly
Septic tank (two or more chambers) Solids settle, and the liquid flows out to a drain field or another infiltration system Sediment pumping; in Riga at least once a year
Holding tank (sealed, no outlet) Everything collects in the tank; nothing flows out Complete pumping as often as it fills up
Biological treatment plant A compressor supplies air, bacteria treat the water, and it is discharged into a ditch or the ground Technical maintenance and pumping out excess sludge

If you don't know exactly what is buried, write in your request how many hatches you can see and whether a pipe runs from the tank towards the garden. That is usually enough to tell whether your sewage system has a septic tank or a holding tank.

A septic tank for a private house: what to choose for a new house or a replacement

A septic tank suits a private house if the soil lets water through and the groundwater does not rise close to the surface in spring. A drain field can then be built after the septic tank. If the soil is clay or the groundwater is high, the usual choice is a biological treatment plant with an outlet to a ditch, or a sealed holding tank.

Before giving a quote, we find out the number of people in the house, the soil, the groundwater level, the distance to the well and the boundary, and where the vacuum tanker can get in. Read more about choice and sizes on the septic tank installation page, and about seasonal homes on the septic tank for a summer house page.

How the work goes

  1. Request Fill in the form: name, phone number and address, then the service and, if you know it, the tank volume. You can send a request online at any time.
  2. We clarify We contact you within 5 minutes of your request and clarify what affects the work and the price: the volume, vehicle access, the distance from the truck to the hatch, the soil.
  3. Price before the work We give you the price based on the published price list and agree on a time.
  4. The work Pumping, installation or maintenance. After pumping you receive a certificate with the address, the date and the volume removed.
  5. What next We tell you what we noticed (for example a damaged lid, a liquid level that is too high or a clogged outlet) and when the next pumping or maintenance is due.

Rules that apply to every septic tank

Septic tanks, holding tanks and factory-made treatment plants with a capacity of up to 5 m³ per day in villages and towns are decentralised sewage systems. They are covered by Cabinet Regulation No. 384: the system must be registered in the municipal register, its contents must be handed over regularly to a pumping contractor, and the pumping certificate must be kept for at least two years.

Each municipality sets the minimum pumping frequency in its binding regulations. In Riga it is at least once a year for a septic tank, while for a holding tank it depends on water consumption and the tank volume. Riga region municipalities have their own rules; we explain how to register a system on the registering a decentralised sewage system page.

Sources: Cabinet Regulation No. 384 of 27.06.2017 “Regulations Regarding the Management and Registration of Decentralised Sewerage Systems” (points 3, 5, 9.1 and 15), likumi.lv/ta/id/291947; Riga City Council Binding Regulations No. 66 of 19.12.2018 (point 26), likumi.lv/ta/id/304471. Checked on 30 October 2026.

Where we work

We serve Riga and the Riga region. In Riga, septic tanks and holding tanks are mainly found in neighbourhoods of private houses, such as Mežaparks, Bieriņi, Trīsciems and Vecāķi.

Outside Riga we work in Mārupe, Ķekava, Ādaži, Salaspils, Baldone, Jūrmala and elsewhere. All places and each municipality's rules: where we work.

Frequently asked questions

How much does septic tank pumping cost?

Pumping up to 4 m³ costs from €75, up to 6 m³ from €90, up to 10 m³ from €110. Outside Riga a travel charge of ~€1/km is added. The price also depends on the distance from the truck to the hatch and whether the hatch is freely accessible.

How often does a septic tank need pumping?

That depends on the number of people, water consumption and the tank volume. In Riga the set minimum for a septic tank is once a year; a holding tank must be pumped out as often as it fills up. Calculation: how often to pump a septic tank.

Does a septic tank have to be registered?

Yes. Cabinet Regulation No. 384 requires decentralised sewage systems to be registered in the municipal register. In Riga, for systems built after 2021, the registration application must be submitted within one month of construction or commissioning.

Which is better: a septic tank or a biological treatment plant?

A septic tank is simpler and needs no electricity, but it needs soil that filters. A BIO plant treats water more thoroughly and also works in clay soil or with high groundwater, but it needs an uninterrupted power supply and annual maintenance.

How do I book a job?

The only way to contact us is the request form. Enter your name, phone number and address, as well as the service and, if you know it, the tank volume. After you submit the form, we contact you within 5 minutes.

How quickly will you contact me after a request?

After you submit the form, we contact you within 5 minutes. We clarify the work, vehicle access and the price, and agree on a time.

Do you also work with businesses?

Send a request

Give your name, phone and address. A specialist contacts you within 5 minutes to confirm the job and the price.

Get a price

Name, phone and address are required. The rest helps us give a more accurate price.

After you submit the form, we contact you within 5 minutes

Get a price we contact you within 5 minutes