Core service
Every roof is different. Our installation too.
Behind Switzerland’s solar record lie enormous quality differences: faulty module fixing, inadequate earthing and poor cable management are among the most common defects according to industry experts. PV installation is the interaction of roof membrane, mounting structure, cable routing, safety and a handover that remains traceable ten years later. Vigorek prepares a mounting concept before the first material is ordered.
In short
Mounting structure per SIA 261, documented penetrations, SUVA-compliant fall protection and complete handover including string diagram, measurement protocol and photo documentation.
No standard price – every roof is different. The estimate takes about 2 minutes and is non-binding.
Project profile
Typical use case
Single-family homes with high aesthetic standards (full-black, in-roof), clean cable routing and long-term value preservation.
Coverage
Complete PV systems with planning, installation, electrical coordination and commissioning across all German-speaking cantons.
Contact
- 8GW
- installed PV capacity in Switzerland (2024)
- +1,8GW
- record additions in a single year
- 2M
- households that could theoretically power
Process
Onto the roof in four steps.
A clear, documented process – from first planning to complete handover.
- 01
Mounting concept
Structure, wind zone and cable routes are planned before any material is ordered.
- 02
Substructure
Object-specific mounting by roof type – tile, sheet metal, facade or flat roof.
- 03
Cabling & safety
Documented penetrations, protected roof membrane, SUVA-compliant fall protection.
- 04
Handover & documentation
String plan, measurement protocol, photos and safety verification – traceable in ten years.
Service in detail
What you can expect from us.
From planning to handover: the scope, the standards behind it and the projects this service is made for.
Scope of work
What we concretely handle.
From substructure to handover, every step is defined before the first material reaches the roof.
What’s included
- Mounting structure matched to tile, sheet metal, facade or flat-roof systems – not generic, but dimensioned object-specifically to wind zone (SIA 261), snow loads and building height.
- Clean cable routing with documented penetrations and roof membrane protection. Every transition between roof and electrical installation is photographed and recorded.
- Coordination of scaffolding, fall protection (SUVA-compliant), installation logistics and object-specific safety requirements – including a mounting concept prior to material ordering.
- Photo documentation and traceable handover: single-line diagram, string plan, data sheets, measurement protocol, photos – everything needed for acceptance, grid operator and future service.
Why this is chosen
How you recognise clean work.
It is not the result alone that counts, but ownership, compliance and a traceable process.
Dependable standards
- Mounting concept before material ordering – not improvisation on the roof.
- Clear responsibilities: roofer, electrician, project management. No single-person-does-everything approach.
- Safety verification (SiNa) per SN EN 62446-1 by a certified specialist – mandatory from 2 kWp under NIN 2025 Chapter 7.12.
- DC connectors from the same manufacturer per NIN 2025, Chapter 7.12.5.2.6 – applied consistently, not only on new installations.
Typical application
Where this service makes the difference.
Not every roof needs the same depth – these projects benefit the most.
Especially fits
- Single-family homes with high aesthetic standards (full-black, in-roof), clean cable routing and long-term value preservation.
- PV projects where mounting area, substructure, cable routes, inverter and grid connection must be coordinated cleanly.
- Commercial roofs with complex access, multiple roof penetrations and elevated documentation requirements (e.g. for insurers or authorities).
The Founders
Engineering depth. Financial structure.
You know before signing who calculates your project and who builds it. Behind that are two founders with two areas of expertise — engineering and finance — and the conviction that a solar system only works long-term when both fit together from the start.
Christian Freiberger
CFA · former KPMG Senior Manager
Co-Founder · Strategy & Finance
Independent management consultant since 2015, previously Senior Manager at KPMG. Most recently Interim Treasury Manager at an energy storage manufacturer. Christian brings the financial structure: liquidity planning, transparent calculations and no project whose numbers don’t add up.
Marc Hammerschmidt
B.Eng. Mechanical Engineering
Co-Founder · Engineering & Planning
Marc handles the technical side: planning, structural analysis, system integration and execution that remains traceable a decade later. An engineering mindset means no improvisation, only well-reasoned solutions for every roof.
Regional Expertise
Locally rooted, experienced nationwide.
Every region has its own regulations, subsidies, and grid operators. We know the local conditions and support your project perfectly tailored to your location.
Priority region
Aargau
Aargau is known as the "energy canton" – with PSI (Paul Scherrer Institute) in Villigen researching solar technologies and PARK INNOVAARE as an innovation cluster. From 2026 AEW Energie AG pays a fixed tariff of around 8.2 Rp./kWh including HKN or the BFE reference market price without HKN (statutory minimum 6 Rp./kWh up to 30 kW). The high density of industrial and commercial buildings offers enormous potential for large rooftop systems. At cantonal level, Aargau funds facade PV (integrated facade CHF 400/kWp, mounted facade CHF 200/kWp, from 75 degrees tilt); there is no cantonal battery storage subsidy.
Priority region
Basel-Landschaft
Plan roofing work and PV together if the roof covering or insulation already needs renewal. Your quote should show which tasks can be combined and who is responsible for their interfaces.
Priority region
Basel-Stadt
Basel-Stadt pursues the ambitious net-zero 2037 climate target. The solar offensive mandates PV systems on new buildings and gradually extends the obligation to existing buildings (15-year transition). From 2026 IWB pays feed-in on a market basis tied to the quarterly BFE reference market price (statutory minimum 6 Rp./kWh up to 30 kW), with guarantees of origin handled separately – not Switzerland's highest tariffs. On the dense urban roofscape, every square metre of mounting area and execution precision count.
Priority region
Bern
Bern ranks among the cantons with the highest installed PV capacity per capita. BKW and EWB offer feed-in compensation up to 10.96 Rp./kWh (EWB). In the Bernese Oberland, altitude and snow reflection deliver up to 12% higher winter yields with bifacial modules – placing special demands on mounting structures and load distribution on alpine roofs.