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".

Atelier Rickli GmbH is an interior design, architecture and construction management firm in its second generation. The company was founded in 1997 by Hansjörg Rickli. In January 2022 Luca Rickli took over the family business. Our services range from planning, color & material conception, costing to execution and final handover of the project to the client. Whether renovation, conversion or new construction, we turn the dreams and wishes of our clients into reality with attention to detail, cost-efficiently and on time.

Dees & Sommer has been assisting private and public clients as well as investors in Switzerland with all real estate issues since 2008.The company has established itself in the areas of client representation, general planning, construction management, engineering and facility management, as well as in the life science, healthcare and hospitality sectors, and employs over 230 people at its offices in Zurich, Basel and Lausanne. Drees & Sommer is also a driver in Building Information Modeling (BIM) and Cradle to Cradle® (C2C).Drees & Sommer Switzerland is part of the Drees & Sommer Group, which employs some 5,100 people at 59 locations worldwide and sets standards in the fields of development consulting, infrastructure consulting, project management, consulting, real estate consulting and engineering.

Muchenberger Roofing was founded in 1990 by Roland Muchenberger. The company operates in the cantons of Basel-Stadt and Basel-Landschaft, but offers services throughout Switzerland. The eight-member team places emphasis on direct customer contact and delivers clean work that leads to great customer satisfaction. They are particularly experienced in new constructions and renovations, especially for flat roofs. The company is available 24/7 and is known for its high flexibility. "Do you have a problem on the roof? It's not a problem. Take Rolli Muchi, because he is a professional in the field."