Residential electrical installations (LV)

New wiring and renovations.
Clear, safe, serviceable.

We build residential wiring that’s easy to live with and easy to maintain: logical circuits, correctly sized protection and a clean handover. For renovations, we fix the common “hidden” issues before they turn into real problems.

Residential electrical installations – switchboard

Clear circuits

Labels • protection • logic

Safety

Protections • standards • inspection

What you get

Residential wiring isn’t just “pulling cables”. It’s a system that should work for decades.

Safe execution

  • proper protection, breakers and interface checks
  • reduced failure risk
  • work aligned with applicable standards

Clear circuits

  • logical circuit segmentation and reserves
  • correct conductor sizing
  • ready for future expansion

Documentation & handover

  • labels, tags and circuit identification
  • handover pack usable for future service
  • inspection-ready execution

Quality materials

  • components from reliable manufacturers
  • focus on availability and serviceability
  • clean workmanship and long lifetime

When renovation makes sense

Renovation isn’t “for the wall”—it’s for safety and real day-to-day operation. If you add new appliances or change the layout, it’s better to do it properly once.

Old aluminium wiring

Missing protections, bonding issues, elevated fire risk.

New high-load appliances

Induction cooktops, heat pumps or an EV wallbox require dedicated circuits.

Frequent outages

A sign of overload or faults. Diagnostics is cheaper than damage.

Peace of mind during inspections

Labeling and documentation simplify future service and insurance discussions.

Related services

Residential wiring often connects to other parts of the system. One team means fewer gaps in responsibility.

Request a solution
Process

How the work is delivered

Simple and controlled. The goal is a clean result—not a “quick job and gone”.

01
01

Site visit & requirements

We clarify scope, priorities, risks, timelines and how the household should operate during works.

02
02

Circuit & protection design

We design circuit logic, breakers, protections and routes so it makes sense in real life.

03
03

Execution

Clean installation, tidy worksite, ongoing checks and photo documentation.

04
04

Checks & testing

Finishing details, functional verification and preparation for inspection and protocols.

05
05

Handover

Labeling, documentation and a clear explanation of what is where and how to maintain it.

06
06

Service follow-up

When the home changes, we can extend circuits, modify wiring or perform checks.

Trusted by industry leaders.

Long-term partnerships with top companies in industry and the public sector.

ČEZ ESL
ČEZ ESCO
AISE, s.r.o.
AC Sparta Praha
Forum Nová Karolina
Marlenka
Accepting new projects

Have a project?
Let’s build it together.

  • Consultation & cost estimate
  • Delivered by our in-house teams
  • On-time delivery & long-term service
Global Elektronic – office
Headquarters
Ostrava
We reply within 24 hours

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Frequently asked questions

How much does a residential electrical installation cost (new or renovation)?

Pricing depends on scope: number of circuits, a new switchboard, chasing/cable ducts, protection type, RCDs, surge protection, and outlet/lighting requirements. We can provide a quick estimate based on floor plan and appliance list; a precise quote follows after site survey and circuit design.

How long does a renovation take in an apartment or a house?

It depends on building size and scope. Partial upgrades can take days; full rewiring typically takes weeks. We can phase the work to keep household operation as uninterrupted as possible.

How do I know my wiring needs renovation?

Common signs include old wiring and protection, too few circuits, breakers tripping repeatedly, warm outlets/joints, interventions without documentation, or a major increase in load (kitchen, bathroom, new appliances).

Do you replace old aluminium wiring with copper?

Yes. In older apartments and houses, replacing aluminium is a common reason for renovation. It typically includes circuit unification, a new switchboard, adding RCDs and clear labeling for future service.

Will you design the number of circuits and protection based on appliances and real usage?

Yes. We design circuits based on real operation and future reserves (kitchen, bathroom, workshop, garden). The goal is safety, clarity and serviceability years later.

Do you include RCDs and surge protection (SPD)?

We specify them as standard according to building type, incoming supply and risk profile. RCDs increase personal safety; SPDs help protect appliances and electronics against surges.

Do you provide a new switchboard and circuit labeling?

Yes. We design the switchboard for today’s needs and future expansion. Handover includes readable circuit labels, numbering and documentation so service is fast and straightforward.

Will you provide full documentation and inspection-ready handover?

Yes. We execute the installation so the inspection runs smoothly and provide a clear handover pack with circuit labeling. This also makes future changes and servicing easier.

Do you do electrical works for apartment buildings (common areas, basements, garages)?

Yes. We deliver wiring and switchboards for common areas, lighting, technical rooms and follow-up inspections. We can phase the work so the building’s operation remains as unaffected as possible.

Can you prepare the installation for an EV charger (wallbox)?

Yes. We plan reserve space in the switchboard, size the feeder, specify protections and ensure the wallbox can be added safely without unnecessary building work.

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