Terms and conditions
These terms apply to the use of sunwires.com, the home check, our estimates and draft quotes. For the supply and installation of a system we conclude a separate contract, whose full terms you receive before signing.
§ 1 Provider and scope
(1) The provider is Sunwires GbR, Mühlemattweg 19, 79539 Lörrach, represented by the partners Enrico S. Barbera, Paramie S. Willmann, Lukas J. Welti, Volker Eschbach ("Sunwires", "we"). The partners are founding Sunwires GmbH; once founded, it will continue to handle requests and quotes. We will inform you about this.
(2) These terms apply to consumers and businesses. Deviating terms of our customers only apply if we expressly agree to them in text form.
§ 2 Founding phase
(1) Sunwires is being founded. We will only carry out installation and electrical work once our business is entered in the trade register (Handwerksrolle) with a master electrician as technical manager.
(2) Until then we do not conclude contracts for the supply and installation of systems. We only prepare non-binding estimates and draft quotes and advise you free of charge.
§ 3 Home check and estimate
(1) The home check is free and non-binding. It does not commit you to anything.
(2) The estimate is based on your details, aerial images and third-party data (for example Google Solar API, OpenStreetMap, PVGIS). It is a model calculation, not a guarantee of yield, savings, price or eligibility for subsidies. Actual values depend on, among other things, the roof, structure, shading, meter cabinet, grid operator, electricity prices and your consumption.
(3) Please provide truthful information.
§ 4 Quotes
(1) Quotes on our website and under your personal quote link are non-binding and subject to change, even if they are labelled as preliminary or confirmed. They are not an offer in the legal sense (§ 145 BGB) but an invitation to conclude a contract with us.
(2) Preliminary quotes are calculated automatically. We only fix binding services and prices after checking your house on site or from photos.
(3) Quotes are valid until the date stated in them. Photovoltaic systems and batteries on residential buildings are subject to 0 % VAT where the conditions of § 12(3) UStG are met; other services, such as wallboxes, include statutory VAT.
(4) Your quote link is personal. Anyone who knows it can see the quote; share it only deliberately.
§ 5 Conclusion of contract
(1) A contract for supply and installation is only concluded when you and we sign a separate contract, by hand or with an electronic signature. Before signing you receive the contract text with all terms, the payment schedule and, if you are a consumer, information on your right of withdrawal.
(2) No contract for supply or installation is concluded through the home check, by a click on our website or by an email alone.
(3) Consumers have a statutory 14-day right of withdrawal for contracts concluded off our business premises or exclusively by means of distance communication. The details are set out in the withdrawal information for each contract.
§ 6 Liability
(1) For the use of the home check and our non-binding information we are liable without limitation for intent and gross negligence, for injury to life, body or health, and under the Product Liability Act.
(2) In cases of slight negligence we are only liable for breaches of essential obligations, whose fulfilment makes proper performance possible in the first place and on whose observance you may regularly rely, limited to the foreseeable damage typical for this kind of contract. Otherwise liability for slight negligence is excluded.
(3) We do not owe constant availability of the website.
§ 7 Data protection
How we process your data is explained in our privacy policy.
§ 8 Consumer dispute resolution
We are neither willing nor obliged to take part in dispute resolution proceedings before a consumer arbitration board (§ 36 VSBG).
§ 9 Final provisions
(1) The law of the Federal Republic of Germany applies, excluding the UN Convention on Contracts for the International Sale of Goods. For consumers this choice of law only applies insofar as it does not deprive them of the protection of mandatory provisions of the country in which they have their habitual residence.
(2) If you are a merchant, a legal entity under public law or a special fund under public law, the place of jurisdiction is our registered office.
(3) If any provision is invalid, the remaining provisions remain valid.
Last updated: November 2026
This translation is provided for information only. The German version is legally binding.