The systems your building relies on.
Rennsli is a plumbing subcontractor on construction projects across Iceland: hospitals, hotels and residential builds. We install, test and hand over to standard, specialising in medical gas, sprinkler systems and BREEAM.
We install and hand over piping systems to standards such as ISO 7396-1 for medical gas, in buildings that stay in full operation.
Experience across construction projects nationwide.
From the first pipework to handover. We work as a subcontractor alongside main contractors such as Ístak, Ísfast and VHE.
Healthcare
Hospitals, health centres and care homes. Medical gas to ISO 7396-1.
Hotels
Hotels in operation and under construction. Heating, domestic water and fire protection.
Residential
Apartment blocks and residential neighbourhoods at every stage of construction.
Commercial buildings
Institutions, energy infrastructure and retail. For example Hellisheiðarvirkjun.
One team, three groups.
A subcontractor in construction projects
We take on large piping projects and hold the schedule. We have worked with Ístak, Ísfast and VHE.
See our projectsCertified expertise
Medical gas (ISO 7396-1), BREEAM commissioning and traceable documentation. A bidder with certifications and documentation in order.
Expertise and certificationsProjects that matter
Work with an experienced team and good equipment at a company with roots back to 1984.
Open positionsSelected projects from our portfolio.
Grensás, Landspítali
Complete plumbing and medical gas systems (ISO 7396-1) for a new rehabilitation ward, including BREEAM commissioning and handover.
Hyatt Centric, Laugavegur 176
Domestic water, drainage and sprinkler systems for a 172-room hotel in the heart of the city.
Alþingishúsið
Building services piping in Alþingishúsið, a heritage-protected building in full operation. A focus on careful workmanship and conduct on site.
Hellisheiðarvirkjun
Piping and systems in one of the country's largest geothermal power plants. Experience with large industrial and energy facilities.
Specialised systems: medical gas, sprinkler and BREEAM.
Medical gas pipeline systems for healthcare facilities: piping, pressure testing, labelling and traceability to the standard. Expertise that few companies in Iceland offer.
Commissioning and handover
Commissioning, testing and handover of systems to BREEAM, with full test documentation and certification.
Sprinkler systems and fire protection
Design and installation of sprinkler and fire protection systems to standard.
Snow melting systems
Snow melting systems for access ways, pavements and car parks.
Heating and domestic water systems
Design and installation of heating and domestic water systems for large buildings, with balancing and energy advice.
Years of continuous experience in piping work, with roots back to 1984.
From tender to traceable handover.
Advice and tender
Quantity take-off, bid preparation and advice at the tender stage, built on experience from comparable projects.
Piping and installation
Skilled tradesmen and solid site management work to the specification, in step with the project's progress.
Testing and commissioning
Pressure testing, commissioning and BREEAM commissioning to the standards and specification.
Handover and traceability
Full test documentation, certifications and traceability delivered at completion, ready for inspection.
We look after the piping systems so you don't have to.
Regular inspection and preventive maintenance of piping systems, monitoring of fire protection and sprinkler systems, reporting and call-out when needed.
Included
- Regular inspection and preventive maintenance
- Monitoring of fire protection and sprinkler systems
- Reporting and traceability
- Call-out and response when needed
Quality you can trust and trace.
ISO 7396-1
Certified expertise in medical gas systems for healthcare facilities.
BREEAM
Commissioning, testing and handover of systems to BREEAM.
Licensed
Work carried out under the responsibility of a certified master plumber.
Since 1991
A trusted family business with roots back to 1984.
We're growing and looking for skilled professionals.
At Rennsli you work on projects like Grensás and Hyatt Centric, with an experienced team and good equipment.
View open positions
Have a project in the pipeline?
Send us an enquiry about a tender, subcontracting or a service agreement, and we'll assess the project with you.