Chimney

1. Cracked or Loose Brickwork

• Bricks and mortar joints wear out over time
• Caused by weather, frost, and age

2. Mortar Deterioration (Repointing Needed)

• Mortar between bricks crumbles
• Leads to instability and water ingress

3. Chimney Leaks

• Water enters through cracked crown
• Damaged flashing or porous brickwork

4. Flashing Failure

• Lead flashing around chimney can crack, lift, or corrode
• Very common cause of roof leaks

5. Chimney Crown Damage

• The top cement layer can crack
• Allows water to soak into the chimney

6. Flue Damage

• Internal lining can crack or deteriorate
• Dangerous because it affects ventilation and safety

7. Chimney Pot Damage

• Pots can crack, lean, or fall off
• Often due to wind or ageing

8. Leaning or Structural Movement

• Chimney may tilt or separate from the house
• Serious structural issue

9. Blockages

• Birds' nests, debris, or soot buildup
• Can cause poor airflow and smoke backing up

minor Repairs

• Repoint mortar joints
• Replace a few bricks
• Seal small cracks
• Fit chimney cap or guard

moderate Repairs

• Replace flashing
• Repair or rebuild chimney crown
• Install or repair flue liner
• Replace chimney pot

major Repairs

• Partial rebuild of chimney stack
• Structural reinforcement
• Fix leaning chimney

When Replacement Is Needed

• Severe structural damage
• Leaning or unstable chimney
• Extensive leaks
• Removal and rebuild during renovation

Installation Steps

1. 1

   Remove Old Chimney (if needed)

   • Carefully dismantle damaged structure
2. 2

   Prepare Base

   • Ensure strong support from roof or ground
   • Reinforce structure if required
3. 3

   Build Chimney Stack

   • Lay new bricks or blocks
   • Construct flue channel
4. 4

   Install Flue Liner

   • Clay, metal, or concrete liner
   • Ensures safe airflow
5. 5

   Add Flashing

   • Install lead flashing at roof junction
   • Prevent water ingress
6. 6

   Form Chimney Crown

   • Cement top layer shaped to shed water
7. 7

   Install Chimney Pot / Cap

   • Improves draft and keeps out rain/birds