Describe the walls, attic, roof or floors to insulate, their area and existing construction. Specify whether thermal performance, acoustics or both are the priority.

Describe how the rooms are used, areas of discomfort and previous work. Attach available plans or assessments. Identify finishes to keep and the space available. A solution needs to be assessed for the building; this text does not determine a material or thickness.

Ask the quote to detail areas, preparation, the proposed system, finishes and related work. Ask how junctions, moisture and ventilation will be addressed. Proposed performance should be explained for your project; a general statement is not evidence of savings or eligibility for financial support.

You can submit a request without creating an account. Include the site's postcode and your preferred schedule. The e-devis.ch administration reviews the request and decides whether to share it with approved companies matching the trade and service area. Your contact details and attachments are not public: authorised companies that buy access can view them and contact you. You are free to compare the quotes received. The contract, price and dates are agreed with your chosen company; e-devis.ch does not perform the work.