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Your mineral surfaces deserve the best – and we deliver it! As experts in protecting, refining, and coloring concrete, as well as natural and artificial stone, the PSS Interservice Group leads the way throughout Switzerland. With innovative technologies such as PSS 20 and faceal, we provide environmentally friendly solutions for long-lasting protection and aesthetic perfection on facades, walls, ceilings, and floors. PSS Dirt & Graffiti Protection – reversible. ecological . With our revolutionary PSS 20 graffiti protection, your facades remain pristine and clean. Proven since 1991, our environmentally friendly system, based on polysaccharides, offers a reversible and residue-free protection for all construction phases – certified according to RAL-GZ 841/2. Graffiti Removal & Cleaning – professional. efficient . Are your surfaces dirty or vandalized? Our team restores facades, walls, and terraces to their original beauty – reliably and professionally, ensuring long-term preservation. PSS Concrete Cosmetics – correct. optimize . Exposed concrete is a design element but not always perfect. Our specialists repair flaws and wear to restore the flawless aesthetics of your concrete – custom solutions for the highest standards. Facade and Wall Design – expert. economical . Whether protection, coloring, or optimization, our specialists care for your surfaces, particularly concrete, natural, and artificial stone. Painting services from a single source – for a complete and aesthetically perfect result. Colored Concrete – semi-transparent. authentic . With faceal Colour, we give your exposed concrete a semi-transparent, authentic color that maintains its distinctive look and feel. Brilliant faceal Colour Effect applications provide additional accents. Surface Protection & Refinement – oleophobic. hydrophobic . Our faceal products sustainably protect facades, walls, and floors. They offer invisible refinement without changing the appearance, ensuring lasting cleanliness and durability. Maintenance & Preservation – concrete. natural stone . With sustainable technologies like PSS 20 and faceal, we ensure the long-term preservation of your buildings. Our proven systems guarantee the protection and maintenance of facades and floors. Bio-based Surface Protection – New! With faceal Oleo Plant B, we now offer an environmentally friendly alternative: extremely oil- and water-repellent, durable, abrasion-resistant, and made from plant-based raw materials. Perfect for facades and floors – 100% biodegradable. Nationwide Service PSS is at your service throughout Switzerland! From our headquarters in Geroldswil and our regional branches, our area managers and consultants provide expert advice on-site. Our service teams ensure quick and efficient solutions. Contact us in your region: Sales Region 1 (Romandie) Tel: +41 (0)44 749 24 27 Email: info-romandie@pss-interservice.ch Sales Regions 2 + 3 (Bern / Basel) Tel: +41 (0)44 749 24 23 Email: info@pss-interservice.ch Sales Regions 4 + 6 (Zurich and surrounding areas) Tel: +41 (0)44 749 24 22 Email: info@pss-interservice.ch Sales Region 5 (Ticino) Tel: +41 (0)44 749 24 28 Email: info-ticino@pss-interservice.ch Let your surfaces shine! Learn more about our solutions and receive personalized advice from our specialists. Your surfaces deserve the best care – for sustainable protection and maximum aesthetic appeal.

The Riesen Building Technology AG is a company with tradition and experience. We are your specialist for building technology. Here you will find personal and competent advice. The plumbing, heating, and roofing company Arthur Riesen AG was acquired by Daniel von Mühlenen in 2003 and transformed into Riesen Building Technology AG. Riesen Building Technology AG took over all 3 employees. Son Andres successfully completed his first apprenticeship as a roofer at LWB in Bern in 2006. After his apprenticeship in 2007 as a plumbing installer at Chapuis & Zürcher AG in Bern, he deepened his professional knowledge for another year. In 2010, Andres successfully obtained his 3rd Federal professional title as a heating specialist in building technology planning at Haustechnikplanung Abbühl in Spiez. To gain further professional experience, he also worked at Böhlen AG in Bern. In 2010, Andres joined the company at 40%. Since 2012, he has been acting as managing director. He is supported by his dedicated, long-standing plumbing and heating installers as well as a trained roofer. Our Services - Plumbing - Heating - Roofing - Lightning protection - Fireplace construction - Bathtub replacement - Solar - Enamel repairs We are happy to be your contact for work around your home. Customer satisfaction is of great importance to us. We guarantee this through quality, performance, and price. The building envelope has many requirements to fulfill. We are happy to assist you. From planning to complete execution. We are professionals with appropriate training. We don't leave our customers out in the rain.

Welcome to KOCH Group AG. With over 300 employees at five locations in Switzerland, we have been providing innovative products, expert advice and tailored services for decades. Our range includes over 100,000 items – from fittings and tools to machines, security technology and factory equipment. Our strengths at a glance: • Range: Over 100,000 items for furniture production, windows, doors, fastening technology, security technology and much more – all tailored to your needs as a tradesperson. • Online shop : A modern shopping experience with easy navigation, detailed product descriptions, CAD data and customisable interfaces for business customers. • Logistics: Efficient processes in our 14,000 m² logistics centre guarantee fast and flexible deliveries – individually tailored to your requirements. • Security technology: Planning, realisation and maintenance of locking systems and access controls by our experienced specialists. • Trade stores: In Bern, St. Gallen and Wallisellen, we offer practical advice, pick-up options and an inspiring exhibition for those interested in building. With the latest technology, dedicated employees and a comprehensive range of services, we create sustainable added value for our customers. Whether at our locations or online – professionals come to KOCH .

Welcome to KOCH Group AG. With over 300 employees at five locations in Switzerland, we have been providing innovative products, expert advice and tailored services for decades. Our range includes over 100,000 items – from fittings and tools to machines, security technology and factory equipment. Our strengths at a glance: • Range: Over 100,000 items for furniture production, windows, doors, fastening technology, security technology and much more – all tailored to your needs as a tradesperson. • Online shop : A modern shopping experience with easy navigation, detailed product descriptions, CAD data and customisable interfaces for business customers. • Logistics: Efficient processes in our 14,000 m² logistics centre guarantee fast and flexible deliveries – individually tailored to your requirements. • Security technology: Planning, realisation and maintenance of locking systems and access controls by our experienced specialists. • Trade stores: In Bern, St. Gallen and Wallisellen, we offer practical advice, pick-up options and an inspiring exhibition for those interested in building. With the latest technology, dedicated employees and a comprehensive range of services, we create sustainable added value for our customers. Whether at our locations or online – professionals come to KOCH .

Welcome to KOCH Group AG. With over 300 employees at five locations in Switzerland, we have been providing innovative products, expert advice and tailored services for decades. Our range includes over 100,000 items – from fittings and tools to machines, security technology and factory equipment. Our strengths at a glance: • Range: Over 100,000 items for furniture production, windows, doors, fastening technology, security technology and much more – all tailored to your needs as a tradesperson. • Online shop : A modern shopping experience with easy navigation, detailed product descriptions, CAD data and customisable interfaces for business customers. • Logistics: Efficient processes in our 14,000 m² logistics centre guarantee fast and flexible deliveries – individually tailored to your requirements. • Security technology: Planning, realisation and maintenance of locking systems and access controls by our experienced specialists. • Trade stores: In Bern, St. Gallen and Wallisellen, we offer practical advice, pick-up options and an inspiring exhibition for those interested in building. With the latest technology, dedicated employees and a comprehensive range of services, we create sustainable added value for our customers. Whether at our locations or online – professionals come to KOCH .

Welcome to KOCH Group AG. With over 300 employees at five locations in Switzerland, we have been providing innovative products, expert advice and tailored services for decades. Our range includes over 100,000 items – from fittings and tools to machines, security technology and factory equipment. Our strengths at a glance: • Range: Over 100,000 items for furniture production, windows, doors, fastening technology, security technology and much more – all tailored to your needs as a tradesperson. • Online shop : A modern shopping experience with easy navigation, detailed product descriptions, CAD data and customisable interfaces for business customers. • Logistics: Efficient processes in our 14,000 m² logistics centre guarantee fast and flexible deliveries – individually tailored to your requirements. • Security technology: Planning, realisation and maintenance of locking systems and access controls by our experienced specialists. • Trade stores: In Bern, St. Gallen and Wallisellen, we offer practical advice, pick-up options and an inspiring exhibition for those interested in building. With the latest technology, dedicated employees and a comprehensive range of services, we create sustainable added value for our customers. Whether at our locations or online – professionals come to KOCH .

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