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Solwex

Roofing & solar

Roof renovation before solar: a roof that lasts as long as the system

A solar system stays on the roof for 25 to 30 years. If the covering is already ageing, it will otherwise need replacing during that time — including taking the system down and putting it back up. We fix the roof first and then install the solar system.

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  • Replacement of rotten rafters, purlins and battens
  • New roof covering and sheet-metal work
  • One scaffold and one contact for roof and solar
  • Solar installation straight after the renovation

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What would a solar system cost you?

Size, price range, savings and payback for your roof – calculated in two minutes with irradiation data for your location. Free and non-binding.

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When should the roof be renovated first?

If the covering has clearly less remaining life than the planned system, renovating first is almost always the more economical choice. Removing and refitting a finished system costs scaffolding, labour, electrical work and lost yield.

  • Covering older than about 30 to 40 years or heavily weathered
  • Broken, slipped or porous tiles, heavy moss growth
  • Damp patches or water stains in the attic
  • Sagging roof areas pointing to damaged rafters or battens
  • Corroded or leaking flashing around chimneys and dormers

Roof and solar from one team

We replace damaged rafters, purlins and battens, renew the covering and carry out the sheet-metal work. The solar mounting is planned at the same time, so hooks and rails sit in the right places and the roof stays watertight — with no finger-pointing between roofer and installer.

How your project runs

  1. 1

    Enquiry

    You describe the building, roof area and goal — via the form or by email.

  2. 2

    Assessment

    We review the roof, structure and access from photos, plans or on site.

  3. 3

    Quote

    You receive a written quote with a clearly defined scope of work.

  4. 4

    Installation

    Our crew installs the substructure, modules and cabling.

  5. 5

    Handover

    Commissioning, photo documentation and a walkthrough of your system.

Frequently asked questions

The questions we are asked most often before a project starts.

Is it worth renovating the roof before installing solar?

Yes, if the covering is unlikely to last as long as the system, i.e. 25 to 30 years. Otherwise the solar system has to be removed and refitted for the later roof work, which costs scaffolding, labour, electrical work and lost yield.

How long does a roof renovation followed by solar installation take?

For a single-family home, roof renovation typically adds two to five working days to the solar installation, depending on scope. Major timber damage or a complete rebuild with insulation takes longer.

Related services

Solar for private homes

A PV system sized to your consumption and roof, installed on tiled, metal or flat roofs — with storage and roof renovation if needed.

Solar for farms

Put large barn, shed and hall roofs to work: mounting on trapezoidal sheet and corrugated roofs, roof renovation included.

Solar maintenance and repair

Regular inspection, cleaning when needed and fast fault finding — so your system keeps delivering the expected yield.

Roof and solar in one quote

Send us photos of the roof and the attic and the approximate year of construction. We will tell you whether renovation makes sense and prepare a combined quote.

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