Member
· Västra Götaland
· 145 posts
I live in a condominium from 1945 where a roughly 30 cm thick load-bearing concrete wall separates 2 rooms, and I would like to install a door in this wall.
The association approves alterations to load-bearing walls provided that a structural engineer approves everything first, but before I do that it would be good to get an idea of what it might cost to hire a concrete cutting company to do the actual work?
So if anyone has done a similar job or works in the industry, I would greatly appreciate any information or advice!
The association approves alterations to load-bearing walls provided that a structural engineer approves everything first, but before I do that it would be good to get an idea of what it might cost to hire a concrete cutting company to do the actual work?
So if anyone has done a similar job or works in the industry, I would greatly appreciate any information or advice!
I looked into it earlier in a condo I lived in at the time. The wall was about 20 cm thick. The contractor who came to look charged a little over a thousand SEK I remember, and I was approved to make a hole without new load-bearing construction (steel beam). The problem then was finding a drilling company. They were very expensive, but the biggest issue was that they couldn't guarantee water wouldn't seep out and under the floor, which was newly laid. I got a quote for around 10,000 SEK I think, but it didn't include removal of the concrete, and as mentioned, they couldn't guarantee there wouldn't be water damage, so I never made a new hole...
I had to fork out 5000 SEK for about three hours of work (one man), and that was about 35 cm of outer wall with hollow bricks+light concrete, i.e., much softer than your wall. It was window --> door, i.e., quite simple. I think it would cost you at least 10k SEK.
Member
· Västra Götaland
· 145 posts
It's a matter of taste perhaps, but I don't think 10,000 SEK sounds quite cheap. When was this approximately?anders07 said:
Any water spill on the floor is not a problem here, as there's currently a vinyl floor that will be replaced afterward.
If it had been cavity brick + lightweight concrete, I might have tried this myself, but with "real" concrete, it suddenly becomes much more difficult.sulfobus said:
I would guess around 20k SEK. It takes a solid blade for 30 cm btg.
Total weight should be about 1.6 tons. 8 pieces will be 200kg each. Hope you have an elevator
12000 Including VAT and removal? Sounds like a bargain. Post the company name!
Member
· Västra Götaland
· 145 posts
To give a little update on this; I recently needed to make a hole in the wall I mention above. So I bring out the big hammer drill (concrete wall as I said), but the surprise was immediate when the drill went into the wall as if it were butter. I then pull out the drill and out comes a red powder; the wall is not concrete but BRICK!
The association had previously said that these walls were concrete, but when I bring out and carefully read the blueprints, it is indeed brick. I hadn't thought to double-check this before and had assumed that what the association said was correct, but now that it's brick instead of concrete, I just say; WONDERFUL!
The association had previously said that these walls were concrete, but when I bring out and carefully read the blueprints, it is indeed brick. I hadn't thought to double-check this before and had assumed that what the association said was correct, but now that it's brick instead of concrete, I just say; WONDERFUL!
Great!
I hope you bring in a constructor at least before you make the hole, so they can assess whether you need to support it in some way, or if you can just open it up.
Dangerous to mess with load-bearing walls if you don't have full knowledge yourself!
Dangerous to mess with load-bearing walls if you don't have full knowledge yourself!
Member
· Västra Götaland
· 145 posts