Sealing & Insulation in the
Canton of Basel-Country

92 companies in Sealing & Insulation based in the Canton of Basel-Country — name and year of registration from the commercial register.

Companies

50 of 92 companies

Abdichtungssysteme Walzer AG Logo

Abdichtungssysteme Walzer AG

Since 2017 · 11–20 empl.4.9(55)

Abdichtungssysteme Walzer AG is a specialist contractor for waterproofing and the remediation of moisture and mold damage in buildings. It provides damage analysis, interior and exterior waterproofing, balcony, basement and garage floor restoration, drying and crack-injection services, and applies ISOTEC system solutions and certified, environmentally compatible materials.

Sealing & InsulationWaterproofingMould removalBalcony refurbishment
ranQ Trust Score 4.5 out of 5.0, rated Excellent, Rank #1
ResomuR AG Logo

ResomuR AG

Since 1993 · 1–10 empl.4.9(19)

The core activity of ResomuR AG is the development, manufacture and distribution of building materials, particularly thermal insulation systems, paints and varnishes. The company also provides consulting services for planners and architects in insulation-related matters and prepares tenders.

Sealing & InsulationThermal insulation systemsResomuR plasteringBuilding materials
ranQ Trust Score 4.4 out of 5.0, rated Very high, Rank #2
Jasari Bauabdichtungen GmbH Logo

Jasari Bauabdichtungen GmbH

Since 2010 · 1–10 empl.5.0(19)

The core activity of Jasari Bauabdichtungen GmbH is the provision of services in the field of building sealing, building drying and floor coating, including the repair of water damage and the execution of sealing works, such as joint sealing, Combiflex sealing and liquid plastic sealing.

Sealing & InsulationBuilding waterproofingConstruction dryingFloor coatings
ranQ Trust Score 4.4 out of 5.0, rated Very high, Rank #3
Allseal AG Logo

Allseal AG

Since 2012 · 21–50 empl.5.0(13)

The core activity of Allseal GmbH is building fire protection and technical insulation. The company offers a wide range of services, including the creation of fire protection concepts, consulting on the planning of new buildings, installation and maintenance of fire protection systems, such as smoke detectors, sprinkler systems and fire extinguishers, as well as regular inspection and maintenance of fire protection equipment. In addition, the company provides solutions for thermal insulation and cold and heat insulation.

Sealing & InsulationFire stopping systemsFire protection liningsTechnical insulation
ranQ Trust Score 4.3 out of 5.0, rated Very high, Rank #4
AGI AG für Isolierungen, Zweigniederlassung Arisdorf Logo

AGI AG für Isolierungen, Zweigniederlassung Arisdorf

Since 2002 · 21–50 empl.5.0(5)

AGI AG für Isolierungen, Zweigniederlassung Arisdorf provides sheet‑metal prefabrication and fine‑sheet processing including aluminium modular systems, and delivers technical insulation and structural fire‑protection services, covering project planning, execution and maintenance.

Sealing & InsulationTechnical insulationPassive fire protectionSealing and jointing
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #5
F + T Fensterabdichtung GmbH Logo

F + T Fensterabdichtung GmbH

Since 2003 · 1–10 empl.5.0(9)

The core activity of F+T Fensterabdichtung GmbH is the renovation and sealing of wooden and wood-metal windows. The company offers a special sealing system that enables windows to be sealed against drafts and noise and protected permanently without requiring replacement. The services include, among other things, consulting, measurement, installation of the sealing system and maintenance of the windows.

Sealing & InsulationWindow renovationWindow sealingAdvice, on-site measurement and quotation
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #6
Durrisol Kuster AG Logo

Durrisol Kuster AG

Since 2013 · 1–10 empl.5.0(9)

The company is a wholesaler and logistics service provider specializing in refrigeration technology and fire protection. It offers a wide range of products and solutions for refrigeration technology, including sound insulation panels, mounting accessories, fasteners and tools. In addition, the company provides e-business solutions, digitization services and logistics solutions.

Sealing & InsulationWholesale for technical insulationLogistics solutionsFire protection consulting and fire protection planning
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #7
Hoffmann & Stetter AG Logo

Hoffmann & Stetter AG

Since 1974 · 1–10 empl.4.3(15)

Hoffmann & Stetter AG is a specialist in flat roofs, floor coverings and building protection. Their core activities include the planning, implementation and renovation of flat roofs, the installation of industrial floors as well as the execution of underground sealing and balcony renovations.

Sealing & InsulationFlat roof waterproofingUnderground waterproofingParking deck waterproofing
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #8
Felix Hauser Abdichtung/Bauservice Logo

Felix Hauser Abdichtung/Bauservice

Since 2019 · 1–10 empl.5.0(16)

The core activity of Felix Bauservice & Abdichtungen Basel is the provision of services in the construction industry, particularly in the areas of waterproofing, renovation, maintenance and new construction. The company offers expert assistance and support for construction projects from start to handover.

Sealing & InsulationWaterproofingRenovation workCustomer masonry work
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #9
RUFA GmbH Logo

RUFA GmbH

Since 2007 · 1–10 empl.5.0(5)

The core activity of RUFA GmbH is the execution of facade work, in particular facade insulation, external plastering, internal plastering, decorative plastering and custom work. In addition, the company also offers plastering and painting services.

Sealing & InsulationFacade workFacade insulationExterior plastering
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #10
DIESAG AG Logo

DIESAG AG

Since 2015 · 21–50 empl.4.1(13)

The core activity of sanoxx AG is consulting, planning and executing sealing and insulation work for new buildings and renovation projects, including the development of object-specific sealing concepts and the application of various sealing systems such as liquid plastics, polymer-bitumen sealing membranes, perimeter insulation and others.

Sealing & InsulationWaterproofing renovationsWaterproofing concepts and waterproofing designInjections
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #11
Hänggi AG Isolierungen Logo

Hänggi AG Isolierungen

Since 1974 · 1–10 empl.5.0(11)

The core activity of Hänggi AG Isolierungen is the planning, calculation and execution of technical insulation, in particular thermal, cold, sound and fire protection insulation, as well as sealing and sheet metal prefabrication for industrial, commercial and private facilities.

Sealing & InsulationTechnical insulationThermal insulationCold insulation
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #12
Hydrostop AG Logo

Hydrostop AG

Since 2016 · 1–10 empl.5.0(7)

The core activity of Hydrostop AG is the development, manufacture and application of sealing systems and products for the construction industry, particularly for the sealing of buildings, basements, foundations and other concrete structures. The company offers a wide range of sealing solutions, including injection methods, joint seals, surface seals, pipe penetration systems and vapor barriers. The goal is to protect buildings from water damage and moisture and ensure a lasting seal.

Building MaintenanceWaterproofing solutionsCellar refurbishment and basement waterproofingInjection waterproofing
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #13
TECTON-FLADAG AG Logo

TECTON-FLADAG AG

Since 1972 · 1–10 empl.

TECTON-FLADAG AG provides services related to roofs and building envelopes, including customer service, flat roofs, pitched roofs, refurbishment, metal roofing and green roofs. The website also presents references and a 24-hour emergency service.

Sealing & InsulationCustomer serviceFlat roofPitched roof
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #14
Kaufmann WKSB AG Logo

Kaufmann WKSB AG

Since 1974 · 1–10 empl.

The core activity of Kaufmann WKSB AG is the manufacture of sheet metal parts and the provision of services in the field of technical insulation, particularly heat, cold, sound and fire protection.

Sealing & InsulationThermal insulationCold insulationSound insulation
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #15
Bautherm AG Logo

Bautherm AG

Since 1999 · 1–10 empl.

The core activity of Bautherm AG Münchenstein is the planning, execution and renovation of facades, including plastering, compact facades, soundproofing, ceiling insulation and insulation.

Sealing & InsulationCompact facadesThermal refurbishmentFacade renders
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #16
Martin Lienhard Logo

Martin Lienhard

Since 2003 · 1–10 empl.

Martin Lienhard is a consulting practice for building and room acoustics and noise protection. It provides measurements, calculations, planning, reports and expert assessments on sound insulation, room acoustics and environmental or industrial noise, including type testing and sound power measurements.

Sealing & InsulationBuilding acousticsRoom acousticsNoise protection
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #17
Lang Kunststofftechnik AG Logo

Lang Kunststofftechnik AG

Since 2004 · 11–20 empl.

The core activity of Lang AG is the construction, renovation and maintenance of swimming pools, including the coating and sealing of swimming pool basins as well as the installation of swimming pool technology and accessories.

Sealing & InsulationNew pool constructionPool renovationPool covers
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #18
Ritec Flachdach GmbH Logo

Ritec Flachdach GmbH

Since 2007 · 1–10 empl.

The core activity of RITEC Flachdach GmbH is the provision of services in the field of flat roof sealing, sheeting and roofing work.

Sealing & InsulationFlat roof waterproofingSlab surfacingSheet metal work
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #19
opticare AG Logo

opticare AG

Since 2007 · 1–10 empl.

The core activity of opticare AG is the development, manufacture and marketing of sealing and adhesive agents, in particular under the Firefox brand, for permanent connections and repairs.

Sealing & InsulationSealants and adhesive compounds
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #20
Roth AG Lausen Logo

Roth AG Lausen

Since 2007 · 11–20 empl.3.6(21)

Roth AG Lausen provides technical insulation, structural fire protection and interior fit-out services, including consulting, project support and specialized products and software for fire-safety management.

Sealing & InsulationHVAC and cold/steam insulationVentilation insulationFire protection
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #21
GPF Innovation GmbH Logo

GPF Innovation GmbH

Since 2012 · 1–10 empl.

The core activity of GPF Innovation is the development and provision of solutions for the modern building envelope.

Sealing & InsulationCustom system developmentFurther development of existing systemsConsulting for developers, investors and architects
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #22
Kramer Schweiz AG Logo

Kramer Schweiz AG

Since 2014 · 21–50 empl.

The core activity of the company KRAMER encompasses the following areas: * Refrigeration construction (cooling and deep-freeze rooms, glass cooling rooms, hygiene rooms, cooling room doors, gas-tight cooling, solar cooling) * Shopfitting (planning, counters, Waterloop, lighting, concept world) * Modular construction (for the food retail industry, logistics, industry and gastronomy) * Insulation technology (thermal insulation, cold insulation, sound insulation, fire protection) The company offers solutions for trade, gastronomy and industry, securing resources through innovative ideas, products and projects.

Sealing & InsulationCold room constructionInsulation engineeringRetail fit-out
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #23
Swiss Finance Solutions AG Logo

Swiss Finance Solutions AG

Since 2016 · 1–10 empl.

Swiss Finance Solutions AG provides trade finance services and marine cargo insurance and supports shipping and logistics operations. The company delivers integrated financial, insurance and transport solutions to support the physical movement of goods.

Sealing & InsulationShipping ServicesTrade FinanceMarine Cargo Insurance
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #24
Zehntner GmbH Logo

Zehntner GmbH

Since 2020 · 1–10 empl.

Zehntner GmbH provides concrete waterproofing, structural reinforcement, coatings, concrete injections, fresh-concrete bonding membranes and sealant joints. The company performs repair, injection and coating work to seal and restore concrete elements.

Sealing & InsulationWaterproofingStructural strengthening
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #25
Roland Hübscher GmbH Logo

Roland Hübscher GmbH

Since 2018 · 1–10 empl.

The core activity of Roland Huebscher GmbH is the provision of services in the field of building envelopes, particularly in the areas of: building assessments and expert opinions, building consulting and planning, construction management, energy consulting, and the creation of building certificates (GEAK). The company thus offers comprehensive services for the planning, monitoring and optimization of buildings.

Technical Consulting & EngineeringBuilding assessments and expert reportsConstruction consulting, planning, site managementEnergy consulting and GEAK
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #26
Abdichtungen Schuurman Logo

Abdichtungen Schuurman

Since 2010 · 1–10 empl.5.0(5)

Abdichtungen Schuurman provides flat roof, terrace and building waterproofing services and also performs cast-asphalt work. Services include renovations, new-build installations and repairs, using solutions such as polymer bitumen, liquid-applied membranes and various insulation systems.

Sealing & InsulationFlat roofTerracesCast asphalt
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #27
Z Flexabdichtungen GmbH Logo

Z Flexabdichtungen GmbH

Since 2009 · 11–20 empl.5.0(4)

Z Flexabdichtungen GmbH provides planning, installation and maintenance of waterproofing for above- and below-ground building works, and also offers coatings, sheet-metal/flashing work, roof greening and roof maintenance services.

Sealing & InsulationRoof waterproofingBelow-ground waterproofingCoatings
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #28
RB

rentsch Brandschutz GmbH

Since 2019 · 1–10 empl.4.8(18)

The company provides services related to technical insulation and structural fire protection. This includes, in particular, the insulation of buildings and industrial facilities, as well as the installation of fire protection components.

Sealing & Insulation
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #29
Dr. Michael Finkenzeller GmbH Logo

Dr. Michael Finkenzeller GmbH

Since 2022 · 1–10 empl.

The company "Ärztezentrum Liestal" provides medical services, particularly in the fields of complementary medicine, sports medicine, prevention, diagnostics, and nutrition. It also offers special consultation hours and massage appointments. The core activity of the company is the medical care and consultation of patients.

Sealing & InsulationGeneral practicePractice servicesDiagnostics
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #30
Schuurman AG Logo

Schuurman AG

Since 2021 · 1–10 empl.5.0(5)

Schuurman AG performs waterproofing work for flat roofs, terraces and building structures, and installs mastic asphalt (Gussasphalt) surfaces. Services include renovations, new construction and repairs using systems such as polymer bitumen, liquid-applied coatings, mastic asphalt, thermal insulation and green-roof assemblies.

Sealing & InsulationFlat roofTerracesBuilding waterproofing
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #31
MADI Isolierungen GmbH Logo

MADI Isolierungen GmbH

Since 2021 · 1–10 empl.5.0(3)

MADI Isolierungen GmbH carries out thermal, cold and acoustic insulation work and provides corresponding insulation services. It also manufactures fine-sheet metal semi-finished products (e.g., pipe meters, bends, spigots, valve caps) and sheet‑metal specialties for construction and industry such as sound-insulation enclosures, flue and smoke pipes, and ventilation ducts.

Sealing & InsulationThermal insulationCold insulationAcoustic insulation
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #32
Oestreich Isolierungen Logo

Oestreich Isolierungen

Since 2010 · 1–10 empl.5.0(1)

The core activity of Oestreich Isolierungen is the provision of insulation services, particularly in the field of heat and cold insulation.

Sealing & InsulationWKSB Insulations
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #33
Zehntner Logo

Zehntner

Since 2022 · 1–10 empl.

Zehntner provides concrete waterproofing, structural reinforcement, coatings, concrete injections and related membrane and sealant-joint services.

Sealing & InsulationConcrete waterproofingStructural strengtheningCoatings
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #34
Regio Abdichtungen GmbH Logo

Regio Abdichtungen GmbH

Since 2007 · 1–10 empl.5.0(1)

Regio Abdichtungen GmbH provides building waterproofing and concrete repair services. Its work includes injections, liquid-applied waterproofing, silicone joints, sealing tapes and fire protection joints.

Sealing & InsulationWaterproofingSilicone jointsSealing tapes
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #35
INFERNO Prevention GmbH Logo

INFERNO Prevention GmbH

Since 2023 · 1–10 empl.

The core activity of Inferno Prevention GmbH is the planning, installation and equipping of fire protection solutions, particularly with the FireShield product, which provides professional sealing in the area of stairwells and penetrations, thus offering protection against fire, accidents and water. The company also offers services such as installation, drilling and acceptance of FireShield elements.

Sealing & InsulationStructural fire protectionFirestoppingFire protection components
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #36
Kuhlmann CAPcon Logo

Kuhlmann CAPcon

Since 2013 · 1–10 empl.5.0(2)

The core activity of Kuhlmann-Capcon is textile insulation, particularly the development and application of flexible, adaptable and close-fitting insulation solutions for various industries that can be used at high temperatures, mechanical stresses or vibrations, as well as in confined spaces.

Sealing & InsulationTextile insulation
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #37
epofloor gmbh Logo

epofloor gmbh

Since 2014 · 1–10 empl.5.0(1)

The core activity of epofloor GmbH is the provision of services in the field of surface protection and building protection, particularly in the execution of sealings, floor and wall coatings, floor coverings, parking garage maintenance and building renovations.

Sealing & InsulationFloor and wall coatingsWaterproofing & liquid plasticsFloor coverings
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #38
BauAbdichter AG, SN Logo

BauAbdichter AG, SN

Since 2021 · 1–10 empl.5.0(2)

The core activity of BauAbdichter AG is the planning, consulting, renovation and maintenance of sealing systems for buildings, particularly in the field of building sealing, to prevent or repair moisture and water damage.

Sealing & InsulationAdvisory and expert assessmentsRenovation and waterproofingWhite tanking
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #39
TinTech GmbH Logo

TinTech GmbH

Since 2016 · 1–10 empl.5.0(1)

The core activity of Tintech is the provision of services in the field of technical insulation and fire protection, particularly in the areas of: heating and plumbing, technical insulation (thermal insulation, cold insulation, sound insulation), fire protection (technically flawless fire protection systems), ventilation and insulation, ventilation installation, and cleaning. The company offers consulting, planning, and implementation of projects in these areas and positions itself as a certified expert in fire protection and technical insulation.

Sealing & InsulationTechnical insulationFire protectionInsulation
ranQ Trust Score 3.7 out of 5.0, rated Solid, Rank #40
Balisol GmbH Logo

Balisol GmbH

Since 2022 · 11–20 empl.2.3(3)

The company provides services in the field of insulation and fire protection, particularly in the areas of heat, cold, sound and fire protection. The core activities include planning, delivery and installation of technical insulation as well as maintenance and servicing of these systems.

Sealing & InsulationThermal insulationCold insulationAcoustic insulation
ranQ Trust Score 3.7 out of 5.0, rated Solid, Rank #41
DMA AG Logo

DMA AG

Since 2021 · 1–10 empl.1.0(1)

The core activity of DMA AG is the development and provision of solutions for facade insulation, paints, plasters and flooring. They offer ETICS (External Thermal Insulation Composite Systems), paints, plasters and flooring solutions to transform spaces into captivating environments. Their services include planning, consulting and execution of projects in the field of building envelope and interior design.

Sealing & InsulationThermal insulationPlastersPaints
ranQ Trust Score 3.6 out of 5.0, rated Solid, Rank #42
AL-OS & KOCH AG Logo

AL-OS & KOCH AG

Since 2026 · 1–10 empl.

AL-OS & KOCH AG provides finishing and interior/exterior construction services, with a focus on façade work, plastering and painting. The company also supports projects in construction management and restoration work.

Sealing & InsulationFacade WorksPlastering WorkPainting Work
ranQ Trust Score 3.5 out of 5.0, rated Solid, Rank #43
Isolierungen Steib GmbH Logo

Isolierungen Steib GmbH

Since 2000 · 1–10 empl.

The core activity of Isolierungen Steib GmbH is the execution of insulation work in the areas of heat, cold, sound and fire protection.

Sealing & InsulationThermal insulationCold insulationAcoustic insulation
No score yet
ISOFIX Bauabdichtungen GmbH Logo

ISOFIX Bauabdichtungen GmbH

Since 2005 · 1–10 empl.

ISOFIX Bauabdichtungen GmbH carries out building waterproofing and related trades, including flat-roof waterproofing, joint repairs and structural sealing. Its services also include fire protection measures, solar panel cleaning, sheet-metal work and sanitary installations including bathroom renovations.

Sealing & InsulationFlat roof waterproofingConstruction waterproofingPlumbing services
No score yet
Ziegler Isolierungen Logo

Ziegler Isolierungen

Since 2006 · 1–10 empl.

The core activity of Ziegler Isolierungen is the provision of insulation services for heat, cold and fire protection in the areas of industry and building technology.

Sealing & InsulationInsulation for heat, cold and fire protection
No score yet
Bal Dämmtechnik GmbH Logo

Bal Dämmtechnik GmbH

Since 2008 · 21–50 empl.

The company's core activity is the provision of services in the field of insulation and fire protection, particularly in the areas of heat, cold, sound and fire protection. This includes the planning, delivery and installation of technical insulation systems as well as the maintenance and servicing of these systems.

Sealing & InsulationTechnical insulationFire protectionThermal protection
No score yet
Andi Graf Baudienstleistungen GmbH Logo

Andi Graf Baudienstleistungen GmbH

Since 2011 · 1–10 empl.

Andi Graf Baudienstleistungen GmbH provides site management, construction supervision and technical consultancy for building construction. Services include cost specification (BKP/NPK), inspections related to fire protection of building envelopes and expert assessments for rendered external thermal insulation systems.

Construction & Project ManagementConstruction site management and supervisionAdvisory services for construction workFire protection inspections for building envelopes
No score yet
Dämm Plus GmbH Logo

Dämm Plus GmbH

Since 2016 · 1–10 empl.

The core activity of Dämm Plus GmbH involves providing services in the field of insulation and protection of technical installations and buildings. Specifically, the company offers the following core activities: * Insulation of heating and district heating pipes, refrigeration systems, ventilation systems, and sanitary pipes * Fire protection, including the installation of fire protection systems and the implementation of fire protection measures * Sound insulation, including the installation of sound insulation products and the implementation of sound insulation measures * Insulation work, including the cladding of pipes and systems The company offers these services for various fields of application, including building services, industrial plants, and building technology.

Sealing & InsulationFire protectionCold and thermal insulationSound insulation
No score yet
BSTech GmbH Logo

BSTech GmbH

Since 2020 · 11–20 empl.

The core activity of BSTech GmbH is the provision of services in the field of insulation, particularly in the execution of work such as ventilation cladding, ceiling installations, joint work, self-contained ventilation, soft shutters, door installations, mortar shutters and other fire protection-related activities. The company offers comprehensive services in these areas and has a trained assembly staff capable of mastering complex tasks.

Sealing & InsulationVentilation Cladding and InsulationSmoke Extraction and Ventilation DuctsFirestopping
No score yet

Sealing & Insulation in the Canton of Basel-Country

92Sealing & InsulationCommercial register (Zefix) · as of October 10, 2026
2016Median year of registrationCommercial register (Zefix) · as of October 10, 2026
92in the Canton of Basel-CountryCommercial register (Zefix) · as of October 10, 2026
2,393in SwitzerlandCommercial register (Zefix) · as of October 10, 2026
Locations

Sealing & Insulation in the region

Point size by number of companies per place.

Source: commercial register (Zefix) · as of October 10, 2026