ᐅ Is it feasible to carry out interior electrical installation as a DIY project?

saar2and schrieb:
For the electrical installation, you definitely need a certified electrician for the meter replacement application and inspection.
--> That is in place.

Otherwise, your plan looks good. Possibly install empty conduits in the floor before the screed layer if pipes are planned to run there.

Are you aiming for a smart home?
If yes, which system are you considering?
--> It was not originally planned. However, a friend recently installed Loxone, and it looks interesting. I am currently researching this direction.

A personal question:
Which company do you work for? [emoji4]

ruppsn schrieb:
Electrical installation calmly could be interesting; if conduits are to go into the ceiling, they have to be done no matter what. If you can/want to place everything on the bare floor, that should work too, but you are still dependent on the screed and plaster work. Interior plaster usually comes before the screed, right?
At our place, electricians, HVAC, and plumbing are sometimes on-site at the same time, which is very practical because they can talk and find solutions together. But that doesn’t mean that electrical installation alone isn’t possible. From what I remember, some have done it here. You can definitely save a lot of money. Given your prerequisites, I would really opt for a bus system, preferably KNX, since you mostly only pay the difference in material costs. Man, how much money I could save there... [emoji6]

Maria16 schrieb:

Our shell contractor wanted (and got) the conduits installed on the precast concrete ceiling "immediately." Twice he managed to get the precast ceiling in place before the weekend; the last ceiling, which luckily didn’t require that much installation, arrived on a Tuesday afternoon, and we were ready from early afternoon.

It was already mentioned that the screed usually comes after the plaster. But the underfloor heating must also be installed between plastering and screed. Also, you could completely disrupt your general contractor’s (GC's) schedule if electrical installation in the finished shell and plastering keep getting pushed back. --> Good point, thanks

I don’t see “few” interfaces with a GC, but actually two important milestones affecting you: the electrical installation and the plastering.

Then the following questions remain:
- Who will install the other flooring? If the GC does this (which I doubt), that also depends on the screed --> Not the GC, will be contracted separately.
- Which staircase do you want? Build-up heights need careful planning, and it must also be clarified whether/ who provides a construction staircase --> Wooden staircase; the construction staircase is a good point, we are currently clarifying.
- Is there even a GC who allows such extensive subcontracting? (We only had one conversation; windows and doors were still okay, but more than that, not really) --> Being clarified. There are different approaches. Some GCs currently prefer to do just the shell due to owner’s share and volume of projects --> Coordination of other trades involves low margin for high effort/risk.

--> Have you considered contracting individual trades?
--> Yes, we have considered it. However, based on professional experience, I hesitate to rely solely on one person, meaning the architect. I lack the construction background for a single-family house to fully assess their work. A specification with gaps then becomes a risk we want to avoid.
Also, we don’t want to represent or clarify interfaces, for example between the carpenter and the mason, which I can’t technically evaluate. And since there are ALWAYS challenges in every project, there will be issues there.

--> Possibly also with an extended shell contract (earthworks / possibly basement / shell / roof including roofing from one source)

Alex85 schrieb:
Electrical work in a relaxed manner ... I don’t think there is anything relaxed about that.
If you want to run conduits in the ceiling, you have to pull your pipes after formwork and before pouring or after precast elements and before pouring. But even if you lay them on the floor and drill through the ceiling, everyone else waits for you. Insulation for screed, underfloor heating, and screed can’t be done before you’re finished, and the plasterer won’t come if you haven’t installed the boxes.
Coordination with water and ventilation installation, if present and under the screed, is necessary at least for the routing.
--> Thanks for the hint about the screed. I was just looking into that in parallel because I expected as much. That’s the answer.
So if you do it, it might be better to include the screed in the package, but that also shifts warranty risk related to the underfloor heating.

So no dawdling if you don’t want to delay the entire project.

ares83 schrieb:
Electrical tasks are really tightly scheduled with many GCs. It means you basically have to get the cables into the ceiling spontaneously on the day, and then deliver. Will your GC take the risk if you don’t deliver?

ONeill schrieb:
With our general contractor (GC), we simply scheduled more time in advance for the electrical work, which wasn’t a problem since the appointments with the tradespeople were planned around that. We were rarely behind schedule, and when we were, the GC handled it very flexibly.

I would definitely bring up the first point.

Regards