Drainage Lerum
We carry out over 100 drainage projects every year and have completed over 1000 drainage projects since 2009. We also operate in Lerum.
Phone – 031-7626188
Mail – info@lornemark.se
- We carry out drainage and insulation on all types of properties, including in Lerum
- We have a turnover of over SEK 40m/year within the group
- 10-year guarantee on all drains carried out
- Only employed staff
- We have performed 1000 drains since 2009
Drainage and Insulation in Lerum
Drainage is essential to protect house foundations from moisture and water damage in Lerum. The optimal drainage design depends on the property’s foundation type and the specific soil conditions on your plot. In Lerum, we offer effective and sustainable methods to solve moisture problems through well-planned drainage and insulation.
Common causes of moisture problems in Lerum
Moisture problems can arise for a number of reasons, often linked to older building techniques and material choices. For example, in the past, asphalt was used to seal basement foundation walls, a method that often led to moisture becoming trapped in the walls. This problem was exacerbated when organic materials were used for internal insulation, preventing the walls from drying out.
In Lerum, climate change and soil properties can also affect the risk of moisture damage depending on the location of the property.
Consequences of inadequate drainage
Without a well-functioning drainage system, moisture can penetrate into the house foundation and create high moisture levels in the basement. This is particularly problematic in Lerum, where many properties have basements with wet rooms such as showers, laundry rooms and saunas. A damp indoor climate can lead to damage to both the building’s structure and fittings.
Soil conditions and the design of the drainage system play a crucial role in protecting the property.
Effective solutions for drainage in Lerum
Protecting your property in Lerum requires a complete moisture protection system that includes:
- Drainage: Drains water away from the house foundation.
- Thermal insulation: Prevents heat loss and moisture problems.
- Capillary break: Stops moisture migration from the soil.
This combination ensures long-term protection and improves the sustainability of the property.
Contact us for drainage in Lerum
We offer customized drainage solutions in Lerum, tailored to meet your specific needs. Our team will ensure that your property remains dry and protected from moisture for years to come.




Features and benefits of drainage systems from Lorné Mark & Fastighetsservice AB in Lerum
Ensuring effective drainage is crucial to protect house foundations against water damage in Lerum. We offer high-quality drainage systems that are customized for local soil conditions and the specific needs of the property.
Basic functions of the drainage system
In Lerum, drainage is an important component in preventing moisture damage. Our systems include drainage pipes and a drainage layer placed both under the floor and outside the foundation wall. This prevents the groundwater level from rising and damaging the house foundation. Outside the house, sinking groundwater is diverted through a drainage layer, protecting the foundation wall from moisture penetration.
Construction of the drainage column
Our drainage systems include a drainage column consisting of high-quality gravel, enclosed in soil fiber fabric and perforated drainage pipes. The gravel, with dimensions of 8/11 or 11/16, is selected to efficiently carry away moisture and water.
The drainage pipes lead the collected water to:
- Municipal stormwater connections
- Private stone coffins
- Storm water drains
The soil fiber cloth protects the pipes by filtering out sediment and soil particles, eliminating the risk of clogging.
Maintenance and backfilling
Thanks to our efficient filtration system, there is no need for regular flushing or cleaning of the drainage pipes. Backfilling is done with existing soils such as clay, sand or till to keep costs down. However, we avoid larger stones near the drainage layer and the insulating slabs to ensure the durability of the system.
Capillary breaking insulation boards
To further protect against moisture, we use capillary-breaking insulation boards that allow the foundation walls to dry out, even if they are thermally insulated on the outside. We work with reputable materials such as Isodrän and Pordrän, which provide long-term protection against moisture.
Our commitment to quality in Lerum
Lorné Mark & Fastighetsservice AB is proud to offer reliable and sustainable drainage solutions in Lerum. With our experience and technical expertise, we ensure that your property receives first-class protection against moisture-related damage.
We work all year round, except during periods of extreme cold, to keep your property safe and well protected. Contact us today for help with drainage in Lerum – we’ll make sure your home resists moisture and water problems for years to come!
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Step-by-Step Process for Drainage in Lerum
Protecting your property’s foundation from water damage requires careful and proper drainage. In Lerum, where soil conditions can vary, it’s important to customize the drainage process to the unique needs of your property and site.
The excavation process
The drainage work starts by digging a trench around the house down to the right level to effectively manage moisture and groundwater. To minimize the risk of settlement problems, we dig one side of the house at a time. Although this is a more time-consuming method, it is a safer option than digging around the entire building at once.
Installation of drainage systems
Once the excavation is complete, a bed of drainage gravel is laid at the bottom. This bed is essential to divert water away from the house foundation. On top of the gravel, perforated drainage pipes are placed, carefully selected to suit Lerum’s specific soil conditions.
The collected water is then directed to:
- A stormwater well
- A specially constructed stone coffin
- Other appropriate drainage depending on local drainage systems and requirements
Benefits of proper drainage in Lerum
Proper drainage protects your property from costly water damage and contributes to a healthy indoor environment. By following this process, property owners in Lerum can ensure that the foundation of their house remains dry and stable for many years.
Contact us for drainage in Lerum
Do you need professional help with drainage in Lerum? We offer customized solutions tailored to your specific needs and soil conditions. Contact us today to ensure your property is protected against moisture and water damage all year round.
In Lerum you should redo your drainage
- If you have visible moisture problems
- If you are going to make an extension to your house
- If you are renovating your basement
- If you are building a new parking lot
- If you are building a new deck