最初由 PrideOfChinese 发布
You don't have to change the roof if no leaking problem because the standard life is 20 years.
If the 烟道 can reach the external wall directly, it would be easy and cost you ~$100 to install one. Otherwise you may have to open the drywall to go to basement for external vent, in this case it would cost $500-$1000. DIY if you can.
Quality carpet cost $30-40/sq yard, plus $15-20 for each step on stair. If the condition is not bad and no bad smell, you can just wash it to save money.
One word, not many replacements are required for a 12-year house if no damage found. If you want upgrade, that's another story.