A. Check whether there are some visible yellowish water stains on the interior wall below the skylight.

B. Check whether there are some visible yellowish water stains on the ceiling of the second floor.

C. The yellowish water stains on the indoor wall of the chimney may serve as a sign of a roof leak or a leak resulted from aged chimney.

D. There exist some abnormal peeling wallpapers.

If you find yourself in such situations mentioned above, please contact us as soon as possible. We will send professionals over your place to make a free–of–charge analysis on the condition of your house.