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Your ventilation company on Södermalm

We are your partner in ventilation solutions on Södermalm. We create energy-efficient, reliable and sustainable systems that provide a healthy indoor climate and a long service life for the facility.

With extensive experience and solid technical expertise, we offer complete ventilation solutions – from design to installation and commissioning. We always prioritize quality, safety and cost-effectiveness, tailored to each customer's needs and circumstances, regardless of company or private individual.

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Complete Ventilation & Planning

We offer complete contracting and design services for ventilation systems, from needs analysis and technical calculations to planning, installation and commissioning.

With solid experience and high precision, we ensure energy-efficient, sustainable and reliable ventilation solutions that are adapted to each building's unique conditions.

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Your expert in indoor climate!
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    Projects that make a difference

    We design, project manage and execute every assignment with precision and commitment. From idea to final inspection, we ensure that the result really makes a difference.

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    Do you need a reliable partner?

    With Flowline's framework agreement, your company gets a secure and flexible partner for HVAC, ventilation and cooling systems. Our certified experts deliver high quality, efficiency and clear documentation – every time.

    Secure your framework agreement

A selection of customer reviews

For us, every project is about quality and long-term sustainability. That's why we're proud that our customers are happy to share their experiences.

  • ★★★★★
    Flowline carried out the plumbing connection to our house quickly and efficiently. The whole process went smoothly and without any problems – we are very satisfied!
    Anna L.
  • ★★★★★
    Fast service and professional treatment. Our residents feel safe.
    BRF Solgläntan
  • ★★★★★
    Flowline Sverige AB is a reliable partner that always delivers on time and with quality.
    GreenTech AB
  • ★★★★★
    Flowline took care of both the design and execution – we are completely satisfied!
    EcoSolutions AB
  • ★★★★★
    Other companies didn't know what to do, but Flowline solved everything right away with technical investigations and coordination with the municipality. Incredibly impressive!
    Mälardalen Preschool
  • ★★★★★
    Flowline helped us with the entire process – from investigation to completed stormwater system. Smooth and professional!
    BRF Oak Grove
  • ★★★★★
    Knowledgeable people who solved everything in the first week. Really impressed.
    John M
  • ★★★★★
    A professional supplier that we can trust in all situations.
    Nordic Facilities AB
  • ★★★★★
    Flowline made the job easy for us – from investigation to completed system.
    Swedish Real Estate AB
  • ★★★★★
    Great company – we are super satisfied!
    Hakan N
  • ★★★★★
    The service is top-notch. Our members appreciate the security and simplicity.
    BRF Tallhöjden
  • ★★★★★
    I feel safe when Flowline takes care of my plumbing problems.
    Lisa K.

Common tasks we perform

  • We develop tailor-made ventilation solutions for all types of buildings – from offices and schools to industrial halls. Our engineers analyze airflows, building volumes and energy requirements to create systems that combine maximum comfort with energy efficiency. The design includes the selection of units, duct systems, control and regulation systems and sound level adjustment.

  • We install ventilation systems with a focus on precision, quality and operational reliability. Our teams handle everything from ductwork and unit installation to integration with control systems. We follow all applicable standards and ensure that the installation delivers optimal airflow and minimal energy consumption.

  • Our team specializes in fast and efficient troubleshooting of ventilation problems. We identify causes of poor airflow, operational disruptions or energy losses and fix the problems quickly. Our emergency interventions minimize downtime and ensure a healthy indoor environment for your customers or staff.

  • We offer ongoing service and preventive maintenance that extends the life of ventilation systems. This includes cleaning ducts, replacing filters, adjusting airflows and updating control systems. The result is lower energy costs, a better indoor climate and fewer unexpected downtimes.

  • We improve indoor air quality through advanced filtration solutions, including HEPA, carbon filters and particulate filters. Our systems reduce allergens, dust and odors while optimizing ventilation performance. We also offer real-time air quality measurement and monitoring.

  • We help customers reduce energy consumption through recycling systems, heat recovery and smart control of air flows. Our solutions contribute to both environmentally friendly buildings and lower operating costs. We design systems that meet modern environmental certifications such as LEED and Miljöbyggnad.

  • We ensure that the indoor climate is optimal – temperature, humidity and air circulation are carefully controlled. This reduces the risk of mold and bad odors while providing a healthy and pleasant working and living environment.

  • We offer complete solutions as a general contractor – from design and installation to service and follow-up. We coordinate all parts of the ventilation project with other construction and installation actors to deliver smooth, complete solutions where the customer gets a reliable partner throughout the entire process.

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Do you need help with Ventilation in Södermalm?

We are here for both individuals and companies, do not hesitate to contact us.

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Quick response
Focus on sustainability
Available 24/7
Certified competence
Customer needs first