What Lauber IWISA does

Lauber IWISA AG is a Swiss full-service building technology (Gebäudetechnik) contractor headquartered in Naters, Canton Valais, operating across the Oberwallis region through five locations: the Naters headquarters and kitchen showroom, a prefabrication workshop in Visp, customer service locations in Zermatt and Saas Fee, and the Kippel branch in Susten specializing in photovoltaic installations. Founded in 1933 by Alfred Lauber in Raron and renamed Lauber IWISA AG in 1993, the company has approximately 270 employees plus 41 apprentices as of 2025/2026 and has been a subsidiary of the Burkhalter Gruppe — Switzerland's leading cross-trade building technology group — since the 2022 fusion of its prior parent poenina holding ag with Burkhalter Holding AG. Notable reference customers include Hôpital du Valais, Hotel Derby, Lonza AG (NSYNC project), and Aletsch Campus.

The company's offering is organized into seven integrated divisions: Heizung & Kälte (heat pumps, wood heating, district heating, oil heating, energy consulting), Sanitär (bathrooms, swimming pools, water treatment), Küche (kitchen design and installation with a showroom featuring next125 and Schüller brands), Dach & Spenglerei (roofing, metalwork, photovoltaic, VELUX roof windows), Planung (BIM-based planning with BIM2Field, GEAK certification, thermal simulation), Kundendienst (24/7 service and maintenance subscriptions across Oberwallis), and Anlagenbau (industrial pipeline construction, sterile systems for biopharma, water supply). Its primary proprietary technology is BIM planning integrated with BIM2Field for collision detection and direct data transfer to construction sites; supporting digital tools include free online calculators for heating, bathroom, and solar cost estimation.

Revenue is generated through a mix of project-based installation contracts (one-time, primary stream), recurring maintenance and service subscriptions, kitchen and bathroom showroom sales, and energy-consulting professional services. The sales motion is direct and field-based, with customer service available 24/7. Customer segments span private homeowners (primary), hotels and mountain-resort hospitality, industrial and life-sciences facilities, public institutions and government buildings, and property developers — distributed across Upper Valais primarily, with documented activity in Vaud and Valais.

Name

Lauber IWISA

Legal name

Lauber IWISA AG

Website

https://lauber-iwisa.ch

Company type

Private

Founded year

1933

Operating status

Operating

Headcount range

101–250 employees

Short description

Lauber IWISA AG is a Swiss full-service building technology contractor in the Upper Valais region providing heating, plumbing, roofing, kitchen, plant engineering, and 24/7 service across five locations to residential, hospitality, industrial, and public-sector customers.

Ownership category

akta.pro rank

Product category

Building Technology Services (HVAC, plumbing, roofing, plant engineering)

NAICS

Plumbing, Heating, and Air-Conditioning Contractors (238220)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585), Heating Equip, Except Elec & Warm Air; & Plumbing Fixtures (3430), Industrial & Commercial Fans & Blowers & Air Purifing Equip (3564)

akta.pro primary industry

Hard Services (MEP/HVAC, Electrical, Plumbing) (BPABAAAA)

akta.pro secondary industry

Energy Services (Retrofits/Commissioning/Testing & Balancing) (IMAIABAI)

Keywords

• Building technology services
• Heating and plumbing
• HVAC installation
• Sanitary engineering
• Plant construction

Headquarters

HQ city

Naters

HQ country

Switzerland

HQ region

Europe

Offices5 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. Building Technology Installation Projects: Full-service building technology installations including heating, cooling, plumbing, roofing/spengleri, kitchen installations, and plant engineering. Projects range from residential renovations to industrial-scale installations. Revenue is generated through project-based contracts for new construction, renovation, and modernization.
2. Maintenance and Service Contracts: 24/7 customer service with Pikettdienst (on-call service) covering the entire Oberwallis region. Service subscriptions and regular maintenance for heating systems, swimming pools, and building technology installations.
3. Kitchen and Bathroom Showroom Sales: Kitchen showroom in Naters featuring branded kitchens from next125, Schüller, and KH System Möbel. Individual appliance sales and bathroom solutions through partner exhibitions.
4. Energy Consulting Services: Energy consulting, GEAK (building energy certificate) services, and impulse consultations for renewable heating systems.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

Lauber IWISA AG delivers comprehensive building technology services across heating & cooling, sanitation/plumbing, kitchen installation, roofing & metalwork, plant engineering, and customer service for residential and industrial customers in the Upper Valais region. The company runs integrated project delivery from energy consulting and BIM-based planning through installation to 24/7 maintenance, and operates a kitchen showroom in Naters for branded kitchen sales. It also operates an industrial plant engineering division (Anlagenbau) handling pipeline construction, sterile systems, and biopharma infrastructure.

Product overview

Lauber IWISA AG operates as a comprehensive building technology (Gebäudetechnik) services company serving the Upper Valais region in Switzerland. The company provides an integrated portfolio of building technology services organized into specialized divisions: Heating & Cooling (Heizung & Kälte), Sanitation (Sanitär), Kitchen (Küche), Roofing & Metalwork (Dach & Spenglerei), Planning (Planung), Customer Service (Kundendienst), and Plant Engineering (Anlagenbau). These divisions function as an integrated team to deliver complete building technology solutions from consulting and planning through installation and maintenance. The company also offers digital tools including heating, bathroom, and solar calculators for customer cost estimation. Lauber IWISA operates as part of the Burkhalter Gruppe and manages a branch in Kippel specializing in photovoltaics, with approximately 270 employees and 41 apprentices across locations in Naters, Visp, Susten, Zermatt, and Saas-Fee.

Differentiator

Problem solved

Functional benefit

Products and services

• Heizung & Kälte (Heating & Cooling) Comprehensive heating and cooling solutions including energy consulting, heating system renovation, heat pumps, wood heating, district heating connections, bivalent heating systems, oil heating installations, and cooling technology for residential and commercial buildings.
• Sanitär (Sanitation/Plumbing) Complete plumbing and sanitation services including water and wastewater installations, water treatment, water softening, hot water systems, gas installations, bathroom renovations, swimming pools, and wellness facilities.
• Küche (Kitchen) Kitchen design, planning, and installation services with a showroom exhibition in Naters featuring partnerships with premium brands including next125, Schüller, and KH System Möbel, plus appliances from Miele, V-Zug, Bora, and Siemens.
• Dach & Spenglerei (Roofing & Metalwork) Roofing and metalwork services including flat and pitched roofs, facades, lightning protection, photovoltaic solar systems, roof inspections, fall protection, and VELUX roof window installations.
• Planung (Planning) Building technology planning services using Building Information Modeling (BIM) methodology, including GEAK expertise, thermal building simulations, energy concepts, district heating network planning, and coordination with architectural firms.
• Kundendienst (Customer Service) 24/7 customer service and maintenance operations covering repairs, troubleshooting, service subscriptions, and maintenance for all building technology systems including swimming pools and whirlpools, with Pikettdienst on-call service across Oberwallis.
• Anlagenbau (Plant Engineering) Industrial plant engineering including pipeline construction, welding, assembly, energy plants, power plant technology, sterile systems, infrastructure solutions, and water supply systems for biopharma, chemical, and production industries.
• Energieberatung (Energy Consulting) Energy consulting services including GEAK (Cantonal Building Energy Certificate) assessments, impulse consulting for renewable heating systems, energy concepts, and energy billing analysis.
• Photovoltaik (Photovoltaics) Photovoltaic solar system installation including roof-mounted, in-roof, flat roof, and standalone island systems for electricity generation and feed-in to public grids.
• Heizungsrechner (Heating Calculator) Free online calculator tool enabling customers to estimate costs for new heating systems in a few steps, providing binding cost estimates.
• Badrechner (Bathroom Calculator) Free online calculator tool for estimating costs of new bathroom renovations, helping customers plan their bathroom projects.
• Solarrechner (Solar Calculator) Free online calculator tool for estimating profitability and investment costs of new solar systems.
• Wasserversorgung (Water Supply) Water supply services including new water and pipeline installations, spring-to-tap systems, public fire water supply operations, maintenance, water analysis, and emergency 24h on-call service.

Quantifiable outcome

• 90+ years of experience in building technology
• +2 more outcomes

Named customers7 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Ten partnerships are on record, tiered core and minor.

• Kippel AG (now Kippel, ZNL der Lauber IWISA AG)coreStrategic or Co-development Partner · 1 January 2024Kippel AG in Susten became a branch (Zweigniederlassung) of Lauber IWISA AG in 2024. Specializes in photovoltaic installations and operates as Kippel, ZNL der Lauber IWISA AG.
• Burkhalter GruppecoreOthersLauber IWISA AG belongs to the Burkhalter Gruppe, the leading provider of cross-trade building technology in Switzerland and Liechtenstein. The group includes regional subsidiaries TZ Stromag, Imwinkelried Lüftung und Klima AG, and Mathieu Ingenieure AG.
• TZ StromagminorStrategic or Co-development PartnerElectrotechnical specialist partner within the Burkhalter Gruppe network. Electrical installation, service, security, automation, photovoltaics, and ICT services.
• Imwinkelried Lüftung und Klima AGminorStrategic or Co-development PartnerVentilation and climate technology specialist partner within the Burkhalter Gruppe. Planning, installation, and maintenance of ventilation and climate systems plus building automation.
• Mathieu Ingenieure AGminorStrategic or Co-development PartnerEngineering consultancy for energy consulting and building technology planning (HLKS) with location in Visp.
• next125minorChannel Partner/ Reseller/ DistributorPremium kitchen brand featured in Lauber IWISA kitchen showroom.
• SchüllerminorChannel Partner/ Reseller/ DistributorGerman kitchen furniture manufacturer whose products are featured in Lauber IWISA kitchen showroom.
• Hofer GroupminorChannel Partner/ Reseller/ DistributorManufacturer of swimming pool and wellness systems. Lauber IWISA is a partner for installation and service of Hofer Group products.
• Geberit AquaCleanminorChannel Partner/ Reseller/ DistributorLauber IWISA is a Geberit specialist partner for AquaClean shower toilet products.
• VELUXminorChannel Partner/ Reseller/ DistributorVELUX certified installation partner for roof windows. Lauber IWISA offers professional installation and reliable service for VELUX products.

Scale indicators4 records

Recent moves9 records

Expansion highlights5 records

Broad incumbents

• Bouygues E&S InTec Schweiz AG: Major Swiss multi-trade building technology contractor (formerly Alpiq InTec) offering HVAC, electrical, energy, and automation services. Comparable as a broad incumbent competing for similar large-scale commercial and infrastructure building-technology projects across Switzerland with deeper geographic reach.
• ENGIE Services AG (Switzerland): Major Swiss energy and multi-technical services provider offering HVAC, electrical, and facility management for industrial, commercial, and public-sector customers. Broad incumbent with deeper national reach and larger project capacity, competing for similar institutional and industrial building-technology mandates.
• Burkhalter Holding AG: Parent group and the leading Swiss cross-trade building technology provider with full-service MEP coverage across Switzerland and Liechtenstein. Most directly comparable as the umbrella organization owning Lauber IWISA, providing shared resources, technical expertise across trades, and group-level coordination among regional subsidiaries.

Direct peers

• Amstein+Walthert AG: Swiss engineering consultancy specializing in building services (HLKS) planning, energy consulting, and GEAK expertise. Highly comparable to Lauber IWISA's Planung and Energieberatung divisions, with overlapping customers in commercial, public-sector, and industrial projects requiring energy concepts and thermal building simulation.
• Mathieu Ingenieure AG: Sister company within Burkhalter Gruppe providing engineering consultancy for energy consulting and HLKS building technology planning with a presence in Visp (Valais). Directly comparable technical services for energy certificates, thermal building simulations, and district heating network planning — overlapping closely with Lauber IWISA's Planung division.
• Walter Meier AG (Klima Schweiz): Swiss HVAC services and climate technology provider offering heating, cooling, ventilation, and air-conditioning solutions with similar trade focus and customer segments in Swiss commercial and residential markets. Comparable regional building-technology contractor with comparable scale and integrated service offering.
• Holinger AG: Swiss engineering consultancy with strong practice in building services, energy, water, and infrastructure projects. Comparable planning and consulting capabilities around energy efficiency, heating systems, and infrastructure engineering — serving overlapping institutional and industrial customers in Switzerland.
• Imwinkelried Lüftung und Klima AG: Sister company within Burkhalter Gruppe specializing in ventilation and climate systems planning, installation, and maintenance plus building automation. Directly comparable for HVAC expertise and customer overlap with Lauber IWISA's heating/cooling and plant engineering divisions in adjacent Swiss regions.
• TZ Stromag AG: Sister company within Burkhalter Gruppe providing electrotechnical services including electrical installation, automation, photovoltaics, security, and ICT. Complementary trade scope to Lauber IWISA's plumbing/heating focus; comparable as a multi-trade building-technology contractor under the same group umbrella with similar operational structure and customer segments.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/lauberiwisaag

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Lauber IWISA