Resale HDB My $10,000 HDB Window Horror Story: How It Caused A 10-Month Delay

  • August 25, 2022
  • 9 min read
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Ryan J

Ryan is an old school print journalist gone digital. He's lived in almost every type of housing in Singapore, from flats to landed homes. Over the past 18 years, he's been a content developer for companies large and small, a co-founder in an education business, and sometimes a voice on the radio. He also spends too much time and money on painting little plastic soldiers.


Hi Stacked! I am getting a new BTO flat on 4th floor facing the playground and thus thinking of doing sth to better soundproof the house. My bedroom windows are not the W1 type of windows so shouldn’t requirement PE endorsement. Have u come across anyone else who have changed their new BTO windows to say double glazed windows in order to better sound proof the house? Any idea the rough costs and timeline required?

Stacked Homes
Stacked Homes

Hey! We spoke to some contacts in the industry – assuming there is no submission required and just purely the work, it’ll be $38-42 per sf. And it’ll take about 1-2 weeks from date of measurement. We haven’t come across people changing their new BTO windows though, seems to be pretty rare!


I’m not following the details of the problem. What do you mean when you say the windows are “low” when they are floor to ceiling windows? Do you mean the individual panels don’t meet the requirement of being at least 1 meter long?



I think it’s the length from the floor to the bottom of the window. Newer HDBs generally have three-quarter length windows or even longer.

H Tan
H Tan

right… details are still not clear to me. so i’m getting the 3/4 BTO windows soon and am considering changing them out in a few years to soundproofed ones, especially since i expect construction on a designated residential site just next door. how will this affect me?

if anyone can shed light on this, much appreciated!


Possible to share the name of the engineering firm?


Hi, if the only problem was windows leaking water during rain, isn’t it more cost effective to just change out the rubber/silicon window seals? Or it’s not possible at all? Thanks!

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