Das Team der Fa. Hasler hat uns bei der Umsetzung von unserem neuen Dachfenster super beraten, das Baugesuch erstellt und die Arbeiten sehr sauber und speditiv erledigt.

Tip Top

Aroleo Bau is your reliable partner for construction work and renovations in the region. With years of experience, we provide tailored solutions for your construction project. Contact us for professional construction services!

Founded in 1807 in Basel, the construction company has been located in the traditional Gellert quarter since 1893. We build above-ground structures for industry, trade, and residential developments. Our core competencies include all craftsmanship work and site management. We coordinate all executing companies, thereby avoiding duplication of effort. Our employees specialize in: • Master builder work • Customer masonry • Conversions • Additions • Renovations • New builds • Concrete restoration • Insulations • Plasterwork • Natural stone works • Earthquake strengthening • Asbestos removal • Roof service • Drilling & milling Put us to the test; we will gladly advise you on your future construction projects. We look forward to hearing from you. Customer masonry Our customer masons are all-rounders on the construction site, both in shell construction and interior finishing. We carry out the following works for you: • Plastering • Coating work • Setting work, joint work • Tile laying • Drywall • Plastering • Attic conversion • Specialized stone masonry • Flowing screed • Abrasions, white plaster • Concrete restoration • Waterproofing Conversion / Renovations With our experienced yet innovative team we handle very complex and technically demanding construction projects. We are accustomed to working in protected heritage and occupied buildings. Conversion and renovation are multi-layered projects with high complexity. Reasons for a conversion can be: • Improving insulation / external façades of the building • Changes in floor plan • Renovation of the existing building fabric • Renovation of building services • Renovation of wet rooms (bathrooms, kitchens, etc.) • Re-purposing of the building • Safety • Earthquake strengthening • Regulatory requirements, etc. New construction New constructions in the area of residential, industrial, and commercial building. Our work is defined by thinking in terms of quality, awareness of costs, and versatility. Flexibility and adherence to deadlines are very important to us. We also place the greatest importance on quality and reliability when selecting suppliers and any subcontractors. General contracting Project management with schedule, quality, and cost guarantee. In all projects, our top priority is to pay equal attention to quality, cost, and timelines in accordance with the client’s specifications. Only when the goals in all three aspects are met can a project be considered successful. The prerequisite for this is strong project control capability, which is continually demonstrated in numerous turnkey planner mandates. Achieving the project goals on one hand through functional and aesthetically demanding architecture, and on the other hand in terms of cost and deadlines, we consider our central mission. Construction supervision Planning and building cannot be goals in themselves, because it is about optimally fulfilling the client’s needs. As a construction service provider we are committed to your wishes. But often the client does not know all possibilities and variants. We develop and procure the necessary basis for decision-making for a realizable project. Clarifications with authorities and offices, feasibility studies, project planning, detailed planning and construction supervision. We carry out construction supervision of any size. Through contacts with various contractors and suppliers, we help the client make the right selection. Daily site inspections are unavoidable for a smooth progression of your construction project. Of course, we also take on smaller areas of construction supervision: • Estimations • Awarding contracts • Work contracts • Construction supervision • Cost monitoring • Construction accounting • Handover of the finished work to the client • Acceptance of warranty works Everything the client needs to realize a construction project successfully.

Auch wenn der Auftrag nicht alltäglich ist, ist dessen Ausführung tipptopp.

Absolut TOP! Herzlichen Dank für die einwandfreie Beratung und die prompte Erledigung. Wir sind mit den Wäscheabwurftüren sehr zufrieden und empfehlen die Firma Dettli Sahli aus Muttenz gerne weiter!

Top Qualität, angemessener Preis. Super Service von der Offerte bis zur Fertigstellung. Präzise, effiziente und saubere Arbeitsweise. Monteure mit dem Gespür für Kundschaft. Obwohl ich einer der "motzigen" Kunden bin, hatte ich NICHTS auszusetzen. Empfehlenswert für alle angebotene Arbeiten. Andy

Project Evolution SA is a company specialized in the construction of energy-efficient wooden houses and buildings. With over 20 years of experience and an operational headquarters in Grono (Canton of Graubünden) since 2020, it is organized to operate throughout Switzerland , managing every construction phase: from planning to final delivery. We work with Swiss precision and a rigorous technical approach, focusing on site organization, timeline compliance, and cost transparency. Structures and Building Systems • Wooden structures using X-LAM system with high static and energy performance • Prefabricated eco-friendly walls , with battens, double mineral wool insulation, and breathable finishes • Custom solutions for single-family homes, villas, extensions, elevations , and multi-storey buildings (up to 7 floors) Insulation and Living Comfort • Natural breathable insulation in rock wool or wood fiber • External thermal insulation systems using ecological, high-efficiency materials • Drywall partitions and suspended ceilings , perfectly smoothed and finished • Carefully executed interior finishes: smoothing, leveling, and surface preparation Interior Works and Installations • Supply and installation of high-efficiency windows and doors • Interior wall cladding and partition walls in drywall • Full coordination of technical installations (electrical, plumbing, mechanical ventilation) Sheet Metal and Roofs • Construction of ventilated and waterproof roofs • Custom-made metal sheet works : copper, aluminum, stainless steel • Gutters, flashings, chimney caps, and external finishes with maximum attention to detail Logistics and Material Transport Even the most complex construction sites are no challenge for us: we transport materials using any necessary method, including crane trucks, tractors, helicopters , or special solutions for isolated or hard-to-reach areas. Efficient organization is one of our core values. Why Choose Project Evolution SA • ✅ Over 2,000 projects completed in Switzerland and Italy • ✅ Advanced shell approach , with a single technical point of contact • ✅ Accuracy in installation, hidden details, and site management • ✅ On-time and on-budget delivery, no surprises • ✅ Expertise in eco-construction and certified natural materials • ✅ Solid experience with prefabricated and sustainable buildings Building with wood in Switzerland? Trust Project Evolution SA We create your eco-friendly wooden house, your sustainable building, or your custom project with maximum technical competence and attention to detail. From design to installation – we are by your side at every step. 📍 Active throughout Switzerland – Contact us for a quote or a personalized consultation.

Floor Installations "We are your expert for flooring in residential, rental, and commercial spaces. Our clients include property owners and tenants of apartments, offices, hotels, hospitals, sports halls, or commercial spaces. With the same enthusiasm, we also perform repairs on existing floors. Our services include comprehensive consultation, substrate renovation, professional flooring installation, and proper maintenance. Our qualified floor and parquet layers specialize in the installation of: • Wooden flooring • Parquet • Laminate • Carpets • Cork • Linoleum • Rubber • Plastics • PVC floors We optimize your floor to fit your space, even with complex layouts or in need of renovation. Our services range from removing old floor coverings to sanding, complete reconstruction of substructures, and installing parquet, vinyl, carpet, or linoleum/PVC. We finish with joint sealants, profiles, and skirting boards." Wall Claddings "We not only offer excellent flooring but also high-quality wall claddings for perfect room design. Wall claddings are a versatile design tool often used by architects, planners, and design specialists. Particularly, wood cladding enhances exclusivity, combining interior design with architectural style for an elegant focal point. This design option allows numerous possibilities for enhancing rooms and can be applied to almost any material with appropriate measures. In comprehensive room redesigns, the additional effort for wall cladding installation is relatively small, as everything necessary is on-site, requiring minimal additional processing steps. Targeted accentuation with wall claddings, especially with wall veneers, is recommended, as exclusivity can be increased at a minimal extra cost." Services "Our service includes comprehensive and expert consultation on flooring, wall claddings, as well as cleaning and maintenance. Our goal is to actively contribute to your individual room design. We offer the following services: • Sample presentation in-store or at your home. • Installation of sample areas for a practical preview. • Creation of color samples for parquet coloring. • Evaluation of substrates and derivation of measures for correct further processing. • Height adjustment using installation plates (chipboard/OSB boards, screed elements with or without insulation) or leveling compounds. • Moisture measurements on underlay floors to ensure optimal conditions. • Consultation on the proper use of care and cleaning products. We want to ensure that you not only find high-quality products with us but also receive all the necessary information and services for a successful room design."