My house was built in 2000. For the past year or two I have noticed a loud banging coming from the interior wall behind the water heater. Critters have been ruled out. The noise is not correlated with turning water on or off. A contractor looked at it and was baffled but said it is not coming from...

Every time we use the hot water for our sink or shower in our upstairs bathroom, a banging noise occurs. The noise sounds like a pipe is hitting against the wall from the inside. What could this be and should we be concerned?The noise has been there since we bought the house 2 years ago, so we're...

Can you use cavity wall insulation on a house with a suspended timber floor which as a crawl space, want happen to the air vents:) will it become damp? Thanks crewe

I'm going to running wire within a twelve inch wide concrete cavity wall. The exterior concrete faces are two inches wide, with each face having two inches of polyiso insulation bonded to it. So eight inches are used up. The middle four inches is where the wiring will go. Plastic outlet boxes are...

We have a bedroom in a walkout basement and yesterday we noticed that the water could be heard clearly rushing through the pipes behind the wall every time a specific toilet is flushed or we use the kitchen sink/dishware/disposal (there is 90 degree pipe that the water is hitting on it's way out of...