LK Systems
LK Systems is the leading Nordic manufacturer of heating and tap water distribution systems, pre-insulated pipes, and prefabricated HVAC solutions, serving professional installers, residential builders, and commercial construction projects across the Nordics, Europe, and the USA.
- Company typePrivate
- Founded1910
- HeadquartersBromma, Sweden
- Headcount101–250
- GTM typeB2B
- OfferingHardware or Manufacturing
What LK Systems does
LK Systems, established in 1910 and headquartered in Bromma, Sweden, is the leading Nordic manufacturer of systems for heating and tap water distribution, as well as pre-insulated pipe (kulvert) networks used in district heating and cooling. Operating as a subsidiary of the family-owned LK Group (parent entity: Lagerstedt & Krantz AB), the company produces a modular HVAC product portfolio including floor heating systems, universal piping systems with press and PushFit connections, water safety units (notably LK CubicSecure with SP-metod 5676 type approval), the LK Metrix non-intrusive flow measurement tool, press tools, ground heating systems, and a broad range of pre-insulated culvert pipes. LK Systems differentiates through in-house prefabrication capabilities that deliver custom-tailored cabinets, manifolds, and wet room cassettes, reducing on-site installation labor for professional contractors.
The company's underlying technology stack centers on cross-linked PE-Xa pipe extrusion (produced by group affiliate LK Pex), integration with valves and control units from group affiliate LK Armatur (producing millions of valves annually), and a digital service layer comprising the LK Pro customer portal, MyLK mobile application, LK Village virtual city, and BIM documentation resources. Products are type-approved to Nordic building regulations, with the LK Metrix measurement tool having received the Red Dot Award: Product Design 2026.
LK Systems generates revenue primarily through one-time product and system sales to professional HVAC installers, residential builders and developers, and commercial/large-scale construction projects across Sweden, the broader Nordics, Europe, and the USA. Distribution is executed predominantly through an authorized reseller network (återförsäljare), supplemented by a direct web shop for spare parts and accessories. Pricing is quote-based for larger system solutions and prefabricated products; no subscription, recurring, or tiered pricing model is disclosed. Customer-facing go-to-market relies on a mix of trade show participation (e.g., Nordbygg), webinars and video content, BIM/technical documentation, and the LK Pro portal, with the MyLK app providing post-sale equipment control.
LK Systems firmographics
Firmographics- Name
- LK Systems
- Legal name
- Lagerstedt & Krantz AB
- Website
- https://lksystems.se
- Company type
- Private
- Founded year
- 1910
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- LK Systems is the leading Nordic manufacturer of heating and tap water distribution systems, pre-insulated pipes, and prefabricated HVAC solutions, serving professional installers, residential builders, and commercial construction projects across the Nordics, Europe, and the USA.
- Ownership category
- akta.pro rank
LK Systems industry classification
Industry- Product category
- HVAC Systems and Plumbing Products
- NAICS
- Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (33341), Heating Equipment (except Warm Air Furnaces) Manufacturing (333414), Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512)
- SIC
- Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585), Heating Equipment, Except Electric & Warm Air Furnaces (3433)
- akta.pro primary industry
- HVAC Equipment (Heating, Cooling & Air Handling) (IMAHAKAB)
- akta.pro secondary industry
- Heat Exchangers, Coils & Hydronic HVAC Components (IMADANAF)
Keywords
Where LK Systems is headquartered
LocationHeadquarters
- HQ city
- Bromma
- HQ country
- Sweden
- HQ region
- Europe
Offices1 record
Markets served
LK Systems business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales
Revenue model
- HVAC Product Sales: LK Systems generates revenue through the sale of heating, tap water, and pipe system products including floor heating, universal systems, ground heating, water safety equipment, measurement tools, press tools, and prefabricated solutions. Products are sold through a network of resellers and directly via web shop for spare parts.
- Prefabricated Solutions: Custom-tailored prefabricated systems manufactured in LK's own factory, sold as complete unit solutions for specific installation requirements in residential and commercial buildings.
Go-to-market motion1 record
Distribution channels2 records
Marketing channels7 records
LK Systems product offering
Product offeringCore offering
LK Systems manufactures and sells HVAC systems for heating and tap water distribution, including floor heating systems, universal piping systems, ground heating (snow melting) systems, water safety equipment, measurement tools, pre-insulated pipe (kulvert) systems, and customized prefabricated solutions. Products are sold primarily through a network of authorized resellers to professional HVAC installers, plumbing contractors, and construction companies across the Nordic region, Europe, and the USA.
Product overview
LK Systems is the leading Nordic manufacturer of easy-to-install systems for heating and tap water distribution. The product portfolio operates as a modular ecosystem with interconnected product lines: Floor Heating (Golvvärme) provides complete underfloor heating solutions; Universal Piping System offers complete pipe systems for tap water, heating, and cooling; Water Safety System (LK CubicSecure) protects against water damage; Kulvert provides pre-insulated pipe conduits; Measurement Tools (LK Metrix) enables non-intrusive flow measurement; Snow Melting handles ground heating; Hydronic System covers technical valves; Press Tools support professional installation; and Prefabricated Solutions deliver customized factory-made units. Digital Services including LK Pro customer portal, MyLK mobile app, and LK Village virtual city complement the hardware offerings. The company also operates sister brands LK Armatur (valves) and LK Pex (PEX pipe extrusion), all under LK Group's family-owned umbrella.
Differentiator
Problem solved
Functional benefit
Products and services
- Floor Heating System (Golvvärme)
Companies that use LK Systems
Customer profileSegments3 records
Ideal customer profiles2 records
LK Systems technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature6 records
LK Systems partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- LK ArmaturcoreLK Armatur is a subsidiary within LK Group and a leading valve and system manufacturer in Europe producing millions of valves annually for the global HVAC market. Solutions are based on a comprehensive view of how valves, control units, components, and prefabricated products work together.
Scale indicators2 records
Recent moves6 records
Expansion highlights5 records
LK Systems competitors and assessment
Company assessmentBroad incumbents
- Viessmann: Viessmann is a German family-owned provider of heating, industrial and refrigeration systems, including heat pumps, boilers, and integrated heating distribution. Comparable end-customer segment (heating installation in residential/commercial buildings) but a broader incumbent spanning the full heating system, not just distribution components.
- Bosch Thermotechnology: Bosch Thermotechnology is a division of Bosch supplying heating and hot water solutions across Europe, including boilers, heat pumps, and integrated system components. A broad incumbent with overlapping end-customer focus but a much wider product portfolio and deeper capital base.
- Danfoss: Danfoss is a Danish global leader in heating, cooling, and drives, with a strong heating segment including controls, valves, and district energy solutions. A broader incumbent that overlaps with LK's hydronic/control offerings but operates at much larger scale across multiple HVAC categories.
Direct peers
- Uponor: Uponor is a Finnish-headquartered global leader in PEX plumbing and floor heating systems, with a strong Nordic presence. Directly comparable to LK Systems in product portfolio (PEX pipes, underfloor heating, tap water distribution) and in serving professional installer and builder customers.
- Geberit: Geberit is a Swiss-listed European market leader in sanitary technology and plumbing systems, including installation systems, piping, and water safety. Comparable to LK Systems in plumbing/tap water distribution products, prefabrication, and reliance on professional installer channel.
- REHAU: REHAU is a German polymer-based solutions provider with a building solutions division covering underfloor heating, radiator connection systems, PEX piping, and pre-insulated district heating/cooling culvert systems. Directly comparable product mix and European professional installer customer base.
- Caleffi: Caleffi is an Italian manufacturer specializing in components and systems for hydronic heating, plumbing, and renewable energy installations, including manifolds, valves, and flow measurement. Directly comparable niche specialty in hydronic components, with similar professional installer focus.
- Watts Water Technologies: Watts Water Technologies is a US-listed manufacturer of plumbing, flow control, and water safety products, including valves, fittings, and leak detection. Directly comparable to LK Systems in tap water distribution, hydronic components, and water safety/leak detection (overlapping with LK CubicSecure).
Others
- Honeywell Building Technologies: Honeywell's building technologies division supplies HVAC controls, building management systems, and connected sensors relevant to LK's emerging controls and measurement portfolio (LK Metrix, Room Control Arc). An adjacent/ecosystem player in smart HVAC rather than a direct pipe/manifold competitor.
Regional players
- ISAN Nordic (Pipelife/Uponor-related floor heating brands): ISAN is a Central European manufacturer of underfloor heating and radiator systems, particularly strong in Czech and Slovak markets. A regional player in floor heating systems comparable to LK's underfloor heating product line, though primarily serving Central European markets.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights6 records
Customer concentration
LK Systems social profiles
Digital presenceLK Systems financial estimates
Financial estimateRevenue estimate
Valuation estimate
LK Systems leadership team
Management profileNumber of profiles
LK Systems subsidiaries and ownership
Company hierarchySubsidiaries3 records
LK Systems funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
LK Systems M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about LK Systems
What does LK Systems do?
LK Systems manufactures and sells HVAC systems for heating and tap water distribution, including floor heating systems, universal piping systems, ground heating (snow melting) systems, water safety equipment, measurement tools, pre-insulated pipe (kulvert) systems, and customized prefabricated solutions. Products are sold primarily through a network of authorized resellers to professional HVAC installers, plumbing contractors, and construction companies across the Nordic region, Europe, and the USA.
Is LK Systems a public or private company?
LK Systems is a private company. It is classified as family owned and is currently operating.
When was LK Systems founded?
LK Systems was founded in 1910. It employs 101 to 250 people.
Where is LK Systems based?
LK Systems is headquartered in Bromma, Sweden, in the Europe region.
How does LK Systems make money?
Two revenue lines are on record. HVAC Product Sales are the primary driver. The others are prefabricated Solutions.
Who are LK Systems's main competitors?
Broad incumbents on record are Viessmann, Bosch Thermotechnology and Danfoss. Direct peers are Uponor, Geberit, REHAU, Caleffi and Watts Water Technologies. Honeywell Building Technologies is listed as an others. ISAN Nordic (Pipelife/Uponor-related floor heating brands) is listed as a regional player.
Does LK Systems have an API?
No public API is recorded for LK Systems.
What industry is LK Systems in?
LK Systems's product category is HVAC Systems and Plumbing Products. Its primary akta.pro industry code is IMAHAKAB, HVAC Equipment (Heating, Cooling & Air Handling), with a secondary code of IMADANAF, Heat Exchangers, Coils & Hydronic HVAC Components. Its NAICS code is 33341 and its SIC code is 3585.