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  • LK Armatur

    LK Armatur is a leading producer in Europe, manufactures millions of valves per year for the global HVAC market. Our solutions are based on a comprehensive view of how valves, control units, components and prefabricated products work together. Svenska English Deutsch Italiano Yкраїнська Suomi

  • LK Systems

    LK Systems is the leading manufacturer of easy-to-install systems for heating and tap water distribution and pre-insulated pipes in the Nordics. Through our prefabrication factory, we also provide tailor-made solutions that simplify the installation process even further. Svenska English Norsk Suomi

  • LK Pex

    Our PEX Pipe Extrusion business area is an innovative manufacturer of high-quality plastic pipes for the heating and plumbing industry. Our core is the efficient, high-technology production process for crosslinked PE-Xa pipes, resulting in products with a unique combination of flexibility and hydrostatic strength. English

  • LK Group

    LK is a family-owned trading and production group, operating on a global scale within the HVAC-area. We are the market leader in Sweden and has an increasing sales of products, systems and solutions in the Nordic countries, Europe and the USA. Svenska English

How it all began...

Founded in 1910 as Lagerstedt & Krantz. LK was originally a wholesale agency and an iron manufacturing company, focused primarily on sales.

Green and white old fashioned bathroom

1933 

Operations were taken over by Lars Schuberth and Albrecht Behm, and the range of products was expanded to include water, waste-water, and HVAC products.

1950 

As general agents the company now had great success with several well-known brand names; KWC’s “spakblandar” programme for public spaces; sewerage systems and cisterns in plastic from Geberit; sanitation products from the Dutch company Sphinx and bathtubs from the Italian manufacturer Zoppas.

Two compression fittings

1970

One of the most important events in the company's history took place in 1970 when the company was made general agent for Conex fittings for HVAC installations. The agency for these fittings that save on installation time came about because of the demand by heating and plumbing wholesalers and sales took off. Conex become the cornerstone of LK’s continued growth and profitability that was used to create a nationwide distribution network of installers and heating and plumbing wholesalers. The sales force continued to have access to new time-saving heating and plumbing products and systems to launch in the Swedish construction market.

LK office in Bromma

1973

With these successes the company grew in size. The old industrial building in Bromma was purchased in 1977 and an office and warehouse was built in Malmo, Helsingborg and Oslo in 1980, 1987 and 1990 respectively. In addition to the property in Oslo, Lagerstedt & Krantz Fastigheter AB markets, owns and manages other business sector properties in the company.

Over time, LK transformed from a trader of other companies’ products into a developer and producer of its own, more technically advanced, products and solutions.

Underfloor heating in a bedroom

1980

LK starts manufacturing and selling a self-produced underfloor heating system.

1983 

The company was sold to the Behm family and Stikkan Anderssons’s Music Sweden AB. The Behm family would finally take overthe whole company in 1995. The company’s first location outside Sweden is established in Oslo.

LK Armatur head office in Helsingborg

1985

LK Armatur is established in Helsingborg when LK increases its focus on supplying manufacturers of heaters and water heaters with valves and components. The company manufactures valves, components and prefabricated units for the global plumbing market.

LK Pex production

1998

For the further development of LK’s heat and tap water systems polyethylene pipes took on a central and strategically important role. With the task of developing and manufacturing this kind of pipe the company LK Pex AB was set up in Ulricehamn. Today, from its own factory, the company supplies not only its sister companies LK Systems and LK Armatur, but also retailers in Europe, the USA and the Middle East with its proprietary quality pipes. 

2000 

LK started to produce and sell high-quality PE-Xa pipesat its production facility.

Serbia and Finland flags

2008

LK Armatur opens its production facility in Zrenjanin, Serbia. The Serbian production facility is an exact reflection of the pipe production in Helsingborg and is primarily used to produce prefabricated pipe systems in copper and stainless steel.

LK Systems grows and establishes a new company in Finland.

LK 551 MultiFill close up

2009

LK Armatur acquires Acaso and broadens its product range with energy-saving products for the heating industry.

Union Jack

2011

The separate company LK International is established with the aim of being able to offer the UK market products from the LK Group’s three business areas - LK Armatur, LK Pex and LK Systems.

LK Pex production in Ulricehamn

2014

LK inaugurates a modern pipe factory of 10,000 m2. in Ulricehamn.

LK logo blue and white

2017

A single common brand platform is developed. All subsidiaries now belong to the one and the same brand - LK.

LK Armatur Germany Head office

2018

LK Armatur establishes its own sale company with office and warehouse in Germany, LK Armatur Deutschlad GmbH.
The office is located in Bad Oeynhausen and also establishes salesmen throughout Germany.

LK Celebrate 110 years logo

2020

LK celebrates 110 years, 1910 - 2020.

LK Systems and Quandify commence collaboration.This new and unique water meter uses patented technology. In addition to this collaboration, LK also becomes a part-owner of Quandify.