Chimney Leak Repair & Waterproofing

               Chimney  Leak Reapir & Waterproofing

Repairing a chimney leak typically involves identifying the source of the leak, fixing it, and then ensuring the chimney is properly sealed to prevent further issues. Here's a general guide to fixing a chimney leak:

1. Identify the Source of the Leak

• Roof Flashing: The flashing around the base of the chimney is a common leak point. If the flashing is loose, damaged, or corroded, water can seep through.
• Cracked Chimney Crown or Mortar: Over time, the chimney crown or the mortar between bricks can crack and allow water to penetrate.
• Damaged Chimney Cap: If your chimney cap is cracked or missing, rain or snow can get into the chimney, leading to leaks.
• Damaged Chimney Liner: If the liner is cracked or damaged, water can leak into your home.

2. Prepare the Area

• Ensure the fireplace or wood stove is cool and not in use.
• Use a ladder to access the chimney, or if it's hard to reach, consider hiring a professional.
• Protect the area around the chimney inside your home with drop cloths or tarps.

3. Repair the Leak

• Flashings: If the flashing is the issue, you might need to re-seal it with a high-quality roofing sealant. If it’s damaged, it may need to be replaced entirely. Flashing should be installed so that it directs water away from the chimney.
• Chimney Crown or Mortar: For cracked chimney crowns, you can apply a special crown repair product or use cement to seal the cracks. Similarly, if mortar joints are cracked, tuckpointing (replacing old mortar) may be necessary.
• Chimney Cap: If the cap is damaged, it’s relatively simple to replace it with a new one. Make sure the new cap fits snugly and covers the entire top of the chimney.
• Chimney Liner: If the liner is cracked, a professional may need to install a new one, as repairing liners can be complex and require special materials.

4. Seal the Chimney

• After the repairs are made, use a waterproof sealant designed for masonry and chimneys to prevent further water infiltration. Be sure to use a breathable sealant that allows moisture to escape but prevents water from getting in.

5. Check the Chimney Regularly

• After your repairs, it’s a good idea to inspect the chimney regularly for any signs of wear, damage, or leaks. This can prevent future problems.

Whether your chimney has started to leak or the bricks are crumbling, we can help! Let us put our over 30 years of experience to work for you. Our team can build or repair any chimney or fireplace. For a FREE estimate, call (617) 586-3577. (617) 586-3577.

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