Unlike emergency trades, solar panel installation in Switzerland is almost never an urgent purchase: a homeowner considering photovoltaics compares several quotes over several weeks, researches available cantonal incentive programs, and works out the payback period of the investment over years. It's a long, considered B2B sales cycle, very different from a heating breakdown or a power outage. Demand exists, driven by the energy transition and rising electricity prices, but it's scattered across comparison sites, trade fairs and word of mouth. Buying qualified solar leads lets installers focus their sales effort on projects that are already actively comparing options.
This guide is for solar installers and energy-sector companies considering buying leads: what it costs, how to judge lead quality, and which legal framework applies in Switzerland.
Why buy solar leads in Switzerland
The Swiss solar market works the opposite way from emergency trades: a customer almost never signs within the hour — they compare several installers, look into available cantonal support and take time to weigh the project's return on investment. Demand also shows strong seasonality, with inquiries peaking in spring and summer, when homeowners can picture their roof's potential more concretely.
A lead purchased in this sector represents a contact already engaged in an active project — a homeowner who filled in a detailed form rather than a vague information request. Given the high average value of a solar installation contract, every converted lead represents significant revenue, which justifies spending more per qualified contact than in lower-ticket sectors. For an installer, buying leads helps fill a pipeline of quote appointments without relying solely on local SEO or word of mouth that takes years to build.
How much does a solar lead cost in Switzerland
The price of a solar lead depends on several factors: exclusivity level, how well the project is qualified (roof surface, orientation, homeowner status, project timeline), the region and the season. Because the average value of a solar contract far exceeds that of a standard repair job, the cost per lead is structurally higher in this sector.
In Switzerland, market ranges typically run from several tens of francs for a shared lead up to several hundred francs for a well-qualified exclusive lead with a concrete project, a near-term decision timeline and a verified homeowner profile. These figures stay indicative: they vary significantly by provider, the level of qualification requested and the time of year — inquiries rise noticeably between March and September. The only reliable way to get a number for your business is to request a detailed, no-obligation quote, specifying your coverage area and qualification criteria.
- Shared lead (2 to 3 installers): the most accessible price point, though direct competition on a high-value project can squeeze margins.
- Exclusive lead: significantly higher cost, but consistent with the value of a solar contract and generally better conversion.
- Well-qualified project (suitable roof, homeowner, near-term timeline): higher price, justified by stronger purchase intent.
- Volume and seasonality: spring and summer inquiries are far more numerous, which affects pricing across the year.
How to judge the quality of a solar lead
In solar, lead qualification goes well beyond valid contact details: it includes technical criteria such as roof type and orientation, available surface area, homeowner status (a tenant generally cannot commission the work), and the project timeline (near-term intent vs. casual curiosity with no deadline).
A good provider documents these criteria before delivering the lead, rather than leaving you to discover on the call that the roof isn't suitable or the contact is a tenant with no mandate from the owner. Over time, track your conversion rate from technical site visit to signed contract — the best benchmark for comparing providers. Be wary of very cheap but poorly qualified leads: in a sector where the sales cycle is already long, wasting time on non-viable projects costs more than investing in better-filtered contacts.
- Verified details: valid Swiss phone number, active e-mail.
- Technical criteria: roof type, orientation, available surface area.
- Confirmed homeowner status and a clear project timeline.
- Tracked consent: the customer agreed to be contacted by an installer.
Exclusive or shared leads: which to choose
A shared lead is sent to two or three installers at the same time: it costs less per unit, but you're in direct competition on a high-value project, which can turn into a price war on the final quote. An exclusive lead is reserved for you alone: the price is higher, but you're the only one in the running, which protects your margin on a high-ticket contract.
In photovoltaics, exclusivity tends to matter more than in other sectors, precisely because the sales cycle is long and several technical visits may be needed before signing — spending sales time on a project you might lose to a cheaper competitor is a real opportunity cost. Many installers default to exclusive leads in this sector, only testing shared leads to evaluate a new provider at lower risk.
Legal framework: nLPD and consent
In Switzerland, any lead purchase must comply with the federal data protection act (nLPD). In practice, this means every homeowner whose details you receive must have given explicit consent to be contacted by a solar installer — and that consent must be tracked by the lead provider, not simply claimed.
Before buying, check that the provider can demonstrate the origin of consent (detailed form, checkbox, timestamp) and that it doesn't resell the same data to an unlimited number of installers without disclosing it. As the receiving company, you remain responsible for how you handle the data you receive: keep it only as long as needed to process the project, and respect the customer's right to opt out of further contact.
