Annual Chimney Inspection SOP

Purpose

Standardize the annual chimney inspection. NFPA 211 requires annual inspection of all chimneys + fireplaces. Inspection finds problems before they become fires + provides documented compliance.

Scope

Residential chimneys serving fireplaces, wood stoves, gas appliances, or furnaces. Excludes commercial industrial chimneys + extensive structural work (refer to mason).

Prerequisites

• CSIA (Chimney Safety Institute of America) certification preferred
• Inspection camera + flashlight
• Mirror + extension pole
• Combustion gas analyzer (for gas appliances)
• PPE: respirator, gloves, eye protection, hard hat
• Documentation: inspection forms + photo capability
• 1-2 hours per typical residential

Inspection levels (NFPA 211)

Level 1 Inspection:

• Customer uses chimney as normal
• No new appliances, no chimney changes
• Annual standard

Level 2 Inspection:

• New appliance installation
• Property sale
• After lightning strike or seismic event
• After chimney fire
• Includes video scan of flue

Level 3 Inspection:

• Hidden conditions suspected
• Removal of materials may be necessary
• Comprehensive evaluation
• Rare for residential

Most service calls = Level 1. Property sales + new installations = Level 2.

Level 1 procedure

Step 1: Exterior chimney inspection (15 min)

1. Walk perimeter; observe overall chimney condition
2. Check for visible damage: cracks, missing mortar, leaning
3. Inspect chimney cap (if present): rust, damage, debris
4. Inspect crown (concrete top): cracks, deterioration
5. Inspect flashing where chimney meets roof: separation, damage
6. Note tree branches contacting chimney

Step 2: Roof-level inspection (15 min)

1. Climb to roof (harness, safety)
2. Inspect chimney cap closer: secure, intact, properly sized
3. Inspect crown: cracks, sealed, level
4. Flashing condition: counter-flashing + step flashing intact
5. Mortar joints: deteriorating, missing
6. Top of chimney: bird/squirrel nests, debris

Step 3: Flue inspection (15-30 min)

1. Open damper
2. Use flashlight + mirror to inspect flue
3. Look for:
   • Cracks in flue tile or liner
   • Creosote buildup
   • Bird nests, debris
   • Missing tiles
4. Estimate creosote level (more on this below)

Creosote staging:

• Stage 1: black or brown soot; flaky; easily brushed
• Stage 2: tarry, sticky; harder to remove
• Stage 3: glazed, hard, glass-like; very dangerous; requires chemical or specialty removal

Step 4: Interior inspection (20 min)

1. Inspect fireplace firebox:
   • Mortar between bricks intact
   • Bricks not cracked, spalling
   • Floor of firebox intact
   • Smoke shelf accessible + clear
2. Inspect damper:
   • Closes fully
   • Opens fully
   • No rust freezing it open
3. Inspect smoke chamber (above damper):
   • Mortar intact
   • No debris buildup
4. Inspect outer hearth (extends into room)

Step 5: Appliance inspection (varies)

For wood stove or insert:

1. Inspect for proper installation
2. Check clearances to combustibles
3. Verify gasket condition (around door)
4. Inspect chimney connector pipe
5. Check for cracks in stove body

For gas log set:

1. Test for leaks (use bubbles or detector)
2. Inspect logs for damage
3. Check pilot light operation
4. Verify thermocouple/thermopile function
5. Test for proper combustion (combustion analyzer)
6. Verify gas line in good condition

For wood furnace / boiler:

1. Inspect heat exchanger
2. Check controls + safety devices
3. Verify draft

Step 6: Combustion testing (if applicable)

For gas + oil:

1. Combustion analyzer at flue
2. Measure CO, O2, draft
3. CO > 400 ppm: combustion problem
4. CO > 1000 ppm: dangerous; turn off + diagnose

Step 7: Documentation + report

1. Photo each finding
2. Note specific issues + severity
3. Provide written report:
   • System type + age
   • Findings (good + needs-attention)
   • Recommended actions
   • Estimated costs
4. Customer signature on report

Findings + recommendations

Common findings:

Common pitfalls

• Not climbing roof: misses cap + crown issues
• Skipping interior inspection: customer concerns missed
• No combustion testing on gas: missed CO issue
• Not photographing: customer disputes findings
• Quoting before inspection complete: missed scope
• Ignoring chimney cap absence: bird nests + rain entry recur

When to refer

• Structural masonry needing rebuild: refer to mason
• Severe water damage: refer to roofer
• Gas issues: refer to licensed gas tech
• Wildlife removal: refer to wildlife control

Customer education

Explain:

• Why annual inspection (safety + insurance)
• What level you performed
• Creosote risk + sweep frequency
• Cap importance (if absent)
• Wood stove vs fireplace differences
• Schedule next inspection

Insurance + compliance

Many insurance policies require annual chimney inspection. Customer should retain:

• Inspection certificate
• Photo documentation
• Repair records

Document for insurance compliance.

Safety notes

• Always wear respirator (creosote dust toxic)
• Eye protection essential
• Ladder safety: 4:1 ratio, tie off
• Working alone on roof: harness mandatory
• Never inspect during/after rain (slippery)
• Carbon monoxide: never inspect while appliance running

References

• NFPA 211 (Standard for Chimneys, Fireplaces, Vents)
• CSIA (Chimney Safety Institute of America) standards
• IRC + IFC code references