Roli GmbH , based in Basel, is a regionally active and specialized service provider focused on leak detection and waterproofing inspections for flat roofs . We support property developers, architects, facility managers, and insurance companies in the reliable analysis and maintenance of flat roof systems – from single-family homes to industrial buildings. With years of experience and the use of advanced technologies, we are a trusted partner for precise, non-invasive leak detection , technically sound inspection methods , and clear, structured documentation . Our guiding principle: Find the root cause – not just treat the symptoms . Our Core Services Flat Roof Leak Detection Using cutting-edge technologies such as moisture sensors, smoke tests, thermography, and electronic pulse systems, we locate weaknesses quickly and accurately – even in complex roof constructions. Waterproofing Integrity Testing For both new and existing buildings, we verify the performance of waterproofing systems before handover or use – with fully documented, protocol-based and independent testing procedures. Roof Inspection with Report We carry out structured condition assessments of flat roofs, including photo documentation and maintenance recommendations – ideal for damage prevention or decision-making in renovations. Expertise Across All Roof Types Experienced in cold roofs, warm roofs, inverted roofs, green roofs, and walkable/drivable roof systems. Who We Work With • Architects & General Contractors – for acceptance tests or quality assurance • Property Managers & Homeowners – for water damage diagnostics, leak assessment or renovation planning • Insurance Companies & Surveyors – for neutral and technical evaluations • Industrial & Commercial Clients – for routine roof checks and safety assessments Locally Rooted – Available Nationwide Our core service area includes Basel, Basel-Landschaft, Aargau, Solothurn, and the Northwestern Switzerland region. Upon request, we are also available throughout Switzerland. Flexibility, short response times, and clear communication are our daily standards. Why Roli GmbH? • Independent & Objective: We don’t sell sealing materials – we identify causes. • Technically Reliable: Use of professional-grade tools and methods • Documented & Transparent: You receive clear inspection reports, including testing protocols if needed • Client-Focused: Personal consultation, transparent process, and fair pricing Roli GmbH – We make flat roofs understandable. A hidden leak? We’ll find it – before it becomes expensive.

Whether by remote maintenance, telephone or on-site - we are there when things go wrong! Your computer professional from the greater Basel area supports you with computer problems, repairs, service, IT support and offers tailor-made solutions for private individuals and companies.

Please ask for Site Supervisor Patrick Seiler Toni Seiler Baugeschaeft AG was founded 1993 in Oberwil. The company engages about 15 employees and is a family business. Our fields of activity are both, customer masonry work, as well as building construction and civil engineering works: · Annex and modification of existing buildings · Restoration of single and multi-family houses · Add panels · All customer masonry works · Concrete refurbishment · Maintenance of common external areas (walls, front ports with composite stones, garage drive ways, perch etc.) · Road construction · Fire protection (certified processor) · Civil engineering surface · Civil engineering underground · Masonry works · Annex to existing buildings · Modifications · Restoration of single and multi-family houses · Kitchen restoration · Bath restoration · Customer mason · Exposed brickwork · Concrete refurbishment · Formwork and concrete works · Bearing walls with steel support · Fireplace restoration · Abrasions · Storefront insulation · Storefront patchwork · Storefront renovations · Storefront isolation · Plastering · Dust protection walls for dust-free constructions · Sealing of floors, walls, ceilings and joints · Winter garden fundament · Winter garden base · Exterior staircase with natural or artificial stone covering · Breakthroughs · Wall breakthroughs · Demolition · Maintenance of common external areas such as: · Walls, front ports with composite stones, garage drive ways, perch · Plant management construction · Plant management · Sewerage · Sewer rehabilitation · Composite stones · Natural stones Personal advice, professional planning and execution characterizes reflects ourselves, true and links us to our slogan "Building with Seiler".

Jederzeit zu empfehlen - kompetent, kundenorientiert und sehr zuverlässig

Damage caused by martens to the roof can lead to serious problems that can be not only annoying but also expensive. Martens are known to cause damage to cars and houses, especially roofs. Martens often cause damage to the roof by destroying insulation and other materials to build shelter or search for food. If a marten manages to penetrate the roof, this can lead to leaks and moisture-related damage that is difficult to repair. If you suspect that a marten has caused damage to your roof, it is important to act quickly. The longer you wait, the worse the problem will become and the more expensive it will be to repair the damage. There are several ways to prevent damage caused by martens to the roof. One way is to regularly inspect the roof and look for holes or weak spots through which a marten could penetrate. Another solution is to install special marten protection systems that prevent the marten from entering the roof. If you already have damage caused by martens to the roof, it is important to contact a professional to repair the damage. It is crucial to repair the damage as quickly as possible to avoid further damage. In summary, it is important to take damage caused by martens to the roof seriously and act quickly to prevent larger damage and higher costs. If you need help preventing or repairing damage caused by martens, you can contact an experienced professional.

Your Roofing and Sheet Metal Specialist in Basel Cello Spenglieri is your trusted partner for professional roofing and sheet metal services in Basel and surrounding areas. We combine expert craftsmanship with reliable solutions to protect and enhance your building. Comprehensive Services Tailored to Your Needs From flat roof installation and repairs to gutter systems and maintenance, we provide customized solutions for residential, commercial, and industrial clients. Quality workmanship and durable materials are our commitment. Local Expertise and Customer Focus Rooted in Basel, our experienced team understands local building requirements and delivers personalized service with transparency and precision. Your satisfaction is our top priority.

Von der Beratung über die konkreten und transparenten Offerten über die äusserst fachgerechte, genaue und kompetente Herstellung mit den termintreuen und präzisen Montagen sowie den korrekten Rechnungen konnte ich diese professionelle Firma kennenlernen. In der ganzen Zeit wurde ich über den Stand der Dinge informiert. Super! Danke. Herr Mühlemann geniest mein volles Vertrauen und ich werde bei einem nächsten Bedarf sicherlich auf ihn zurückkommen. Ernst Heggli, Beringen

Being an international player in paints and polymers with high added value, the Mäder group offers its customers global and innovative solutions in demanding markets such as Aeronautics, Railways, Automotive and Building. Anxious to be able to meet the needs of these markets, Mäder puts innovation at the heart of its strategy and thus devotes 10% of its turnover to R&D. Its research, in partnership with universities, is particularly focused on bio-sourced raw materials, green chemistry and reducing the impact of its activity on the environment. Backed by the expertise of its 850 employees, Mäder is now present in Europe as well as in China and India in order to support its customers in their international development. The group specializes in the following processing sectors: Paints, coatings and varnishes • Coil coating technology • UV and EB technology • Railway • ACE • General Industry (machines, devices, special surfaces and applications) • Wind energy • Aerospace • Telecommunications • Plastics Gelcoats and Resins We develop and produce unsaturated polyester resins, gel and top coats, adhesive resins, filled fire protection resins and special resins including the necessary surface finishing products and technologies. Paint raw materials This business line produces standard resins and additives based on polycondensation chemistry. The product range includes modified and unmodified alkyd and polyester resins for various applications in the paint and coatings industry. Toll manufacturing We develop and produce tailor-made products on behalf of our customers: • radiation curing resins • paint raw materials • prepolymers

WBI AG is a Swiss planning and engineering consultancy delivering infrastructure, rail, structural engineering, municipal engineering, and surveying & GIS services. Since 1955 we manage all phases from studies to commissioning for public, industrial, and private clients. Offices in Regensdorf, Schaffhausen, Langwiesen and new Herisau ensure fast coverage across Northeastern Switzerland. Services include roads and utilities, urban drainage, bridges and structures, rail infrastructure, owner representation, spatial and transport planning, surveying, 3D laser scanning and GIS

Welcome to Hugentobler & Bürgin GmbH in Ormalingen! As a reliable company, we offer comprehensive services in the areas of timber construction, roofing, renovation, and scaffolding. With many years of experience and a dedicated team, we pride ourselves on providing our customers with high-quality solutions. Our expertise ranges from new construction to conversions and renovations. We place great emphasis on precision and efficiency to ensure your projects are completed on time and to the highest quality standards. We utilize the latest technologies and materials to achieve innovative and sustainable results. Our dedicated professionals are at your side from planning to completion. Customer satisfaction is our top priority, and we strive to exceed your individual requirements and expectations. Trust Hugentobler & Bürgin GmbH for professional construction services. We are proud to have built a first-class reputation in Ormalingen and the surrounding area. Our team is characterized by professional expertise, reliability, and customer-oriented solutions. Contact us for your next construction project – Hugentobler & Bürgin GmbH is your trusted partner for excellent construction services!

Sali Zabelaj AG is a company based in Döttingen specializing in general construction, gardening, renovations, demolition, swimming pool construction, building maintenance, and cleaning services.

2S Gartenbau GmbH – Your Partner for Sophisticated Garden Concepts A beautifully designed garden is more than just a visual delight. It’s a place of retreat, a space for connection, and a reflection of personal style or architectural vision. Whether you're an architect planning a project or a private client looking to realize your dream garden – at 2S Gartenbau GmbH , you're in the best hands. For over 20 years, we have specialized in high-quality garden construction, creative redesigns, and sustainable maintenance solutions. From compact green oases to large-scale outdoor spaces – together we create tailored concepts that blend seamlessly into the overall design of your home or project. Our young, dedicated team brings expert knowledge and genuine passion to every project. We value clear communication, precise execution, and on-time delivery – from the first sketch to the final plant. And even after completion, we remain at your side: with professional garden maintenance that preserves the value and beauty of your green investment for years to come. Let’s create inspiring outdoor spaces together – functional, aesthetic, and uniquely yours. We look forward to your inquiry and to bringing your garden vision to life.