Renovating a home’s electrical installation might seem like a straightforward task, but in reality, it involves many technical details and steps that must be well understood. Without proper planning, unexpected issues may arise that alter your budget or delay the progress of the project.
The total cost of an electrical renovation doesn’t depend solely on the electrician’s work. In fact, there are two main components to consider:
- The electrician’s quote, which includes materials, installation, and legal certification.
- The support work provided by the builder or renovation company, required to enable the installation throughout the property.
Understanding this distinction is essential to properly organize your project and avoid surprises later on.
What Does a Full Electrical Installation Really Include?
An electrical installation is not just about wires and outlets. It involves a variety of tasks that must be carried out in perfect coordination between the electrician and the building team to ensure a safe, efficient, and code-compliant result.
Electrician’s Work
The electrician’s quote typically includes:
- Installation of wiring according to the approved project and local regulations
- Setup of the electrical panel, circuit breakers, outlets, and switches
- Connection of all light points (indoor and outdoor)
- Issuance of certificates and documents for grid connection
- All labor and technical work involved
For medium-sized homes (around 150 m²), this part of the project often amounts to around €5,965, although the final figure may vary depending on complexity and any additional features.
Builder’s Support Work
Aside from the electrical setup itself, the construction team must prepare the structure to make the installation possible. This support work is essential and billed separately.
It includes:
- Chiseling walls and floors for wiring channels
- Installing conduits and junction boxes
- Sealing chases with mortar
- Preparing ceiling points for lighting
- Setting up grounding points and basic electrical entries
The average cost for this support work is about €5,545 for a standard home, though this will vary depending on ceiling types, finishes, exterior lighting, and other custom factors.
Commonly Excluded Items (That You Should Plan For)
This is where many homeowners get caught off guard. There are several items that are typically not included in either the electrician’s quote or the support work, and should be budgeted separately:
- Interior lighting fixtures (ceiling lights, spotlights, lamps, etc.)
- Outdoor lighting (facades, garden, walkways)
- Meter installation and utility connection
- TV, internet, and phone installations
- Solar panels or other special systems
To make this easier to understand, here’s a visual summary:
Average Budget: Real Breakdown of Costs
Here’s a general cost breakdown for a full electrical installation in a 150 m² home:
Final Thoughts
As you’ve seen, renovating the electrical installation of a home isn’t just about running cables. It’s a technical process that demands clear planning, proper coordination, and a full understanding of what’s included in each stage. Knowing what your budget actually covers, anticipating what’s usually excluded, and deciding when changes can still be made can make all the difference between a smooth renovation and a stressful one.
If you’re planning to renovate your home’s electrical system or need a tailored quote, Tu Casa en Buenas Manos is here to help. We offer transparent, professional guidance at every stage of your project — no surprises, just results.
📞 Contact us today and let’s talk about your project.
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