
Knox Chimney Crew IN Belmont, MA






Flue Maintenance
Stage 1–3 Clearing
Rotary creosote sweeping
Powered rotary whip assemblies strip glaze and tar creosote from flue walls under sealed negative-pressure HEPA vacuums, preventing soot escape into living quarters.
NFPA Standards
Camera flue inspections
Dual-axis internal video cameras document hidden clay tile fractures, mortar separation, and clearance hazards inside your flue liner before winter firing.
Obstruction Removal
Nest and debris clearing
Humane removal of raccoon, squirrel, and chimney swift nesting materials alongside twig blockages restores natural exhaust draw and prevents hazardous smoke backdrafts.


Structural Repair
Brick and crown rebuilding
Stainless flue relining
UL-listed corrugated and rigid stainless steel liners sealed with ceramic wool insulation bring cracked or unlined flues up to modern heating appliance standards.
Custom caps and dampers
Top-sealing draft dampers and multi-flue copper or steel spark arrestors shut out rain entry, snow melt, and downdrafts during sub-zero freezes.
Complete crown and mortar reconstruction
Full-depth mortar raking and historic lime tuckpointing preserve New England brickwork, paired with cast-in-place reinforced concrete crowns that divert water from external masonry walls.
Certified Safety
Every sweep operates under strict NFPA 211 fire-prevention codes and guaranteed dust-free containment.
We protect Middlesex County homes with documented inspection reports, certified flue clearances, and zero particulate residue left behind on your hearth.
Direct dispatch from Belmont across Boston and Middlesex County properties.
