My window sills are rotting; what should I do?
If you have problems with your window sills, you should get them reviewed and replaced. Hire a company that offers double glazing, and you should be able to get them to fix this and any issues with the window itself.
Good windows, especially in London, where I live (I am in Forest Hill), can make such a difference. You will spend less money on energy, you will be able to sell your home for more, and you can enjoy a bit of extra peace via reduced noise pollution.
Out of all the adjustments you could make to your home, I would rate improving your windows as among the most important. For me, it added money to my house and ensured I enjoyed a higher standard of living. Hire a local company to handle your windows, and you can benefit from the improved comfort and reduced cost of living just as I did.