Geothermal heating with Flowline – from first contact to completed installation

Geothermal heating is a stable and environmentally friendly solution for heating homes and commercial premises. With correct sizing, you can reduce both energy costs and climate impact for decades. At Flowline, we combine technical expertise with practical experience to make the entire process simple, safe and transparent. Here we describe the installation step by step with a focus on technology and efficiency.

1. Free advice and needs analysis

We always start with a site visit where we analyze the property's energy needs, existing heating system and ground conditions.

Our technical work includes:

  • Energy calculation based on the property's surface area, insulation, ventilation system and domestic hot water consumption.

  • Dimensioning of ground source heat pumps and energy wells taking into account coefficient of performance (COP) and maximum energy efficiency.

  • Geotechnical assessment of ground conditions to ensure optimal heat transfer and long life of the borehole.

The result is a detailed quote with estimated energy savings and recommended pump size.

2. Permit and drilling point

We handle all administrative steps:

  • Application for a drilling permit from the municipality.

  • Analysis and placement of the drilling point for optimal energy extraction and minimal impact on the site.

  • Checking distances to buildings, groundwater levels and soil conditions.

Technical detail: The boreholes are usually sized between 100 and 400 meters depending on energy needs, soil type and desired heat output. Correct sizing is crucial for high efficiency and long service life.

3. Drilling

Our certified drilling team uses modern equipment for minimal impact on the property.

Technical process:

  • Use of advanced precision drilling machines to optimize depth, borehole diameter and circulation of drill cuttings.

  • Continuous measurement of temperature gradients and geothermal resistance to ensure optimal energy extraction.

  • Restoration of the ground surface and handling of drill cuttings in an environmentally friendly manner.

4. Installation and commissioning

When the borehole is ready, we install the ground source heat pump and connect it to the heating and tap water system.

Our steps include:

  • Installation of high-efficiency heat exchangers and pumps adapted to the property's energy needs.

  • Pressure testing, sealing and ensuring correct flow through the borehole.

  • Programming and calibration of control systems for optimal operation and high COP.

  • Remote monitoring for continuous performance optimization.

  • Review with the customer and complete documentation of the installation.

5. Service and follow-up

For long-term operational reliability, we offer service agreements that include:

  • Regular checks and preventive maintenance.

  • Remote monitoring that detects operational deviations early and optimizes energy consumption.

  • Fast technical support when needed.

With proper maintenance, the system can maintain high efficiency for over 20 years.

Why choose Flowline?

  • Experience: Hundreds of successful geothermal heating projects throughout Sweden.

  • Expertise: Certified plumbing fitters and well drillers with deep technical expertise.

  • Transparency: Clear quotes, energy calculations and no hidden costs.

  • Security: Service agreements and remote monitoring ensure long-term operation.

Contact us here

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