In Fribourg, compare contractors using your roof, consumption and project scope. Check authorisations, professional status and written service terms instead of a general ranking.
Check the contractors Request the legal company name, comparable references and the division of work between the main contractor and subcontractors. Check authorisation for the electrical tasks. Swissolar membership and the Solarprofis label are different: verify status and activities in the current directory. Nearby premises guarantee neither competence nor repair response times.
Compare the same project Provide roof details, consumption and required functions. Compare models, layout, monthly generation, included work, exclusions and installed price. A generation forecast is not a contractual guarantee. Specify service costs, warranties and contacts. Request several suitable offers without treating three quotations as a legal requirement.
Define procedures and handover Identify the grid operator for the address and who handles each application. Pronovo provides project-specific procedures and permits third-party representation; check documents and timing. Specify payments, tests, handover records and service in the contract. A supplier name or “all-inclusive” claim cannot allocate every responsibility.
Fribourg example: choose a photovoltaic facade Consider a renovation comparing conventional cladding with a solar facade. The example assumes no uniform permission for all Fribourg buildings. Have active surfaces, windows, finishing and colours described through plans and samples.
Ask who assesses mounting, ventilation, weatherproofing, insulation and fire requirements. Roof expertise does not necessarily establish comparable facade experience. Compare projects using a similar system and identify responsibility for envelope and electrical interfaces.
Check element replacement: access, removal, colour availability and joint work. Price service for the proposed product without assuming module warranty covers every facade job. Keep the sample and model reference in the order records.
Request monthly generation with orientation and shading, then the full facade cost. Count cladding savings once. Verify grants and procedures separately. Select the offer that meets the actual system requirements with verifiable plans, responsibilities and service.