https://www.repairmywindowsanddoors.co.uk/cheshunt-guttering-and-downpipes-near-me/ Repairing Leaks From Cast Iron Downpipe Joints Leaks at the cast-iron joints of downpipes could be a problem. They can lead to water damage and encourage the growth of mould and mildew. Fortunately they can be repaired. However, first you'll have to cleanse the pipes of any rust or paint by using wire brushes. Once the pipes have been cleaned, you will need to determine the extent and nature of damage. Caulking Although caulking isn't a long-lasting solution, it's usually enough to prevent further damage and ensure that rainwater is flowing. Most hardware and home improvement stores offer mortar caulking. It's used for sealing gas in bricks, stone and metal, as well as for repairing foundation cracks and fissures in basements as well as sealing leaks around windows and doors, and it can also be applied to cast iron pipe joints. When you use caulking, ensure that you get rid of any paint or rust from the area prior to applying the new sealant. If you need to, use a scraper or wire brush to remove the paint or rust. Be careful not to scratch or cut the pipe. Also, you should wear gloves when working with caulking because the chemical compound may irritate your skin. To prepare the area to be cleaned, make use of a wire scraper or wire brush to get rid of any rust or debris from the pipe joint. Masking tape can be placed on either side of the area to ensure that there are no lines left when applying the caulk, and the tip of the caulk tube needs to be cut at a 45-degree angle. Then fill the caulk gun up with a small amount of the compound. Apply it to the joints and gaps you'd like to repair. When using a caulking gun, you should be consistent with your speed and pressure to apply an even, smooth bead of the compound to the joints or gaps. After you've applied the caulking ensure that you wait at least six hours before using the downpipe once more. This will allow the caulking to comple