Small Project?

My company is currently having a minor reno going on. Here's what the reno consist of:

1. Demolition of 2 partitions, as well as sanding of the floor where the partitions rested to make the floor look nicer, more even
2. Erection of 3 partitions - 1 glass, 1 to seal a doorway, 1 to extend a existing storage area
3. Rewiring works for the affected partitions

This renovation works, undertaken by Eagle Design Pte Ltd, has been underway for 3 whole weeks, and according to him and the other contractors who gave their quotations, they told me that the works would take 2 weeks. Now he's telling me that it'll only be finished next week, which would take the whole reno works 4 weeks for a timeline that should only be 2 weeks, and the works ar not yet completed as of date!

Here's the parts of reno works that happened:

1. Partition works was supposed to start on 29Mar08 at 1230h. I had my carpenter arranged to arrive at that time as cupboards were supposed to shifted too. Carpenters came at the appointed time, contractor did not turn up. Ok, I allowed the carpenter to do his items first. Called the contractor at 1330h, he said, wait a while more, they will be here shortly. Called again at 1530h, he said, they're stuck on the other site, they'll be there later. Called again at 1700h, he said: Can I get my people down on Monday morning instead? When I heard that, I was fuming mad, and I told them no, you said that you're to be here at 1230h, and now you tell me that you can only come the next morning! (The carpenters have already finished their work at 1500h, and I've waited for them for 2 freaking hours! They arrived at 1730h and took down the partitions ONLY. They said that they'll erect the partitions first thing in the morning on Monday. At least the guy who was demolishing was kind enough to help me to silicon a window still, which was allowing water to seep into the office.
2. Monday - 31Mar08. No signs of the contractor staff. Called, said they're stuck at another ground.
3. Tuesday - 1Apr08. Ditto for this day.
4. Wednesday - 2Apr08. Finally! The man doing the erection of partition works is here! and errected the partition boards. Finished plastering and left. Door of extended storage area left there.
5. 03Apr08-14Apr08: Reno works were at a standstill. Called Mr Tan, who said: They'll be there later! Later! Later! Later!
6. 15Apr08 - His Later, finally came. Today, his man doing finally came and did the concealment of the wires, at least part of it, as well as placing the door in the storage area. Funny thing, they shaved the door, and now the door can't catch. Can't shut properly. He said that he will get another of his staff to take measurements for the glass partition tomorrow. We shall see about that, shall we?

He made a very interesting remark today: Your's is just a small project. If your's is a big project, I'd have completed it long ago.

So if you take 4 weeks to complete a small project like mine, would I dare to entrust you with the reno works of my company should I shift office?