How to Stop Water Ingress Through External Walls – Leeds

Water getting in through external walls can cause damp, mould and damage. Common causes include cracks, failed pointing, leaking gutters and ground water. Here's how to approach the problem and what should be checked first.

Fix & Patch Construction applies source-first diagnostics and then reinstatement work for water damage to walls, floors and ceilings where needed, usually as part of a wider property brief.

Step-by-step

  1. Find where the water is getting in – look for damp patches, staining or mould on internal walls. They often correspond to external defects, high ground level or leaking gutters.

  2. Check the outside – cracks in render or brickwork, missing or damaged pointing, and gaps around windows or doors let in rain. We can seal cracks and carry out external crack and seal repairs.

  3. Look at gutters and downpipes – water running down the wall from a blocked or leaking gutter is a very common cause. Fix the gutter first.

  4. Consider ground level – if the ground outside is above the damp course or piled against the wall, moisture can be driven in. Improving drainage and lowering the level may be needed.

  5. Do not just treat the inside – tanking or internal coatings can trap moisture. Fix the source on the outside where possible.

  6. Get a professional assessment. The right route may include crack correction, pointing work, rainwater control or drainage improvements depending on the source.

Common mistakes

  • Painting or sealing the inside without fixing the external cause can trap moisture and make the problem worse.
  • Large structural cracks or serious damp may need a full survey – we can advise.

When to bring in a specialist

  • You have damp or staining on internal walls and suspect the cause is outside.
  • You can see cracks or failed pointing and want them repaired properly.
  • You have fixed gutters but the wall is still damp.

FAQs

Do you deal with water ingress through walls in Leeds?
Yes. We diagnose the source and carry out the external corrective work needed, including crack treatment, pointing, gutter corrections and drainage-related measures.
What is external crack and seal?
Filling and sealing cracks and gaps in render or brickwork to prevent rain from penetrating. We use appropriate materials for your wall type.
Can leaking gutters cause damp walls?
Yes. Water running down the wall from blocked or leaking gutters is a common cause. We fix gutters and external walls.
How do I start an enquiry?
Send photos of the inside and outside if possible, and we will advise on the best next step.

Leeds + surrounding areas for diagnosis, corrective work, reinstatement and wider project support