Frequently asked questions

What are the advantages of the Houzy Solar Calculator?

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The digital solar calculator from Houzy analyses the solar potential as well as the costs of a photovoltaic system with just a few entries - completely free of charge and without obligation. The analysis is based on all relevant criteria of a solar analysis and shows you the investment costs, operating costs, subsidies, tax savings, feed-in tariffs, etc. in detail. In just 2 minutes and after a few clicks, the solar calculator is ready and you can see all the relevant information about the photovoltaic system in an overview. The results are completely neutral - Houzy is an independent platform and does not pursue any third-party interests. 


What information does Houzy need for the Solar Calculator?

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To find out whether your house is suitable for a photovoltaic system, we need the address. This allows us to obtain relevant information from publicly accessible databases and directories, such as the geographical location, roof area or roof orientation. Some key data about the house and your energy requirements help us to fine-tune the calculations. Afterwards, you will immediately receive online access to your digital solar analysis on Houzy by email.


Why is the Solar Calculator free of charge?

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Houzy is a start-up and finances itself by brokering third-party services and through advertising partnerships with national and regional partners. However, you as a user always decide for yourself when you want to share which data with whom, and thus always retain data sovereignty. The use of our solar calculator tool and the entire homeowner platform is permanently free of charge for you. However, if required, you can request free quotes for the installation of a photovoltaic system from one of our recommended tradesmen in your region.


Who owns Houzy?

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Houzy's shares are majority-owned by the founders. Almost 20 private investors (business angels) from various fields (real estate, craftsmen, marketing, finance) have been supporting Houzy with specialist expertise and financing since 2017.

Why do I have to register?

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Registration on Houzy is a prerequisite for using our products on the platform. By registering, you open a Houzy account free of charge and without obligation. There you can view the results of the analyses, get a digital overview of your house or condominium and use other useful features free of charge. To register, all you need to do is enter your email address.

Is my data secure?

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Data protection and security are our top priority. That's why we leave nothing to chance. To ensure the protection of your personal data and secure data transmission, we work with the latest security technologies. Your data is stored in encrypted form in a computer centre that is certified with all current industry standards. Data is therefore only passed on to third parties if you request service offers via Houzy that require this. An example of this is when you actively contact one of our broker partners. You can find further information in our T&Cs under "Our privacy policy".

Will I incur in any costs at a later date using Houzy?

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The use of MyHouzy is free of charge and remains so. To use the features on Houzy, you only need to register with your email address. When an order is placed with one of our verified partners, payment is handled independently of Houzy between the user and the tradesperson.

Why is the renovation calculator free of charge?

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Houzy is a young company and finances itself by brokering third-party services as well as through advertising partnerships with national and regional partners (however, you as a user always decide yourself when you want to share what and with whom and thus always retain data sovereignty). The use of our online renovation calculator and our platform is therefore permanently free of charge for you. If required, our experts will be happy to advise you personally in a second step. Suitable, regional craftsmen can also be contacted through us without obligation. If an order is placed, payment is handled directly with the craftsman.

What is Houzy?

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Houzy is a young Swiss company that has set itself the goal of simplifying the lives of homeowners through innovative tools and bundled expert knowledge. The innovative renovation calculator is at the centre of this, but is only one of other smart tools that help to optimally manage residential property and save effort and costs in the process. Houzy is constantly being expanded. You can find out more under "About Houzy".

Can I adjust the details of my property after registration?

What happens after registration?

Why do I have to register?

How accurate is the result of the online renovation calculator?

What data is the renovation calculator based on?

What are the advantages of the online renovation calculator?

What information does Houzy need for the renovation calculator?

Why is the renovation calculator free of charge?

How accurate is the result of the Houzy property valuation?

When is a property valuation important?

What are the advantages of using Houzy's online property valuation service?

What information does Houzy need for the online property valuation?

Why is the property valuation free of charge?

Which partners does Houzy work with?