Need Contractor For Small Reno

[gteo 0]

Hi, need advise contact of good contractor able to undertake the following small reno.

1. I have sealed off the master bedroom door opening years ago , 2mx0.83m, now need to hack off and make good to install a door.

2. I have combined master room and room 2 with am opening, 2.1mx1.7m with sound-proof partition.

if anyone able to provide contractor nos will be great I stay in Tampines areas

what are the best cost of the above 2 items ?