Prevent House Fires — Book Your 2026 Fireplace Inspection Now
A fireplace that looks cosmetically worn is not the same as one that is structurally compromised — and visually, you often can't tell the difference. Gaps in refractory mortar and cracked panels allow temperatures of 1,000°F+ to contact combustible wood framing and insulation behind the firebox wall. This is a primary cause of house fires that start in fireplaces with no visible warning signs.
Fireplace Repair Services in St. Louis
Refractory Panel Replacement
The refractory panels — the heat-rated tiles lining your firebox floor and walls — are designed to absorb and deflect extreme heat. When they crack (which happens over time due to thermal cycling), the gap exposes the underlying masonry and eventually the framing behind it. Panel replacement ($350–$900) restores the thermal barrier and eliminates the fire hazard.
Firebox Mortar Repair & Rebuilding
The mortar joints between firebox bricks deteriorate faster than the bricks themselves. Failed mortar allows combustion gases and heat to migrate laterally through the firebox structure. Mortar repointing or partial firebox rebuild ($400–$4,500 depending on extent) restores structural integrity and safety.
Damper Repair & Replacement
A properly sealing damper is essential for both safety and energy efficiency. Failed throat dampers are among the most common fireplace problems in St. Louis — they allow cold air infiltration in winter, conditioned air loss in summer, and can prevent proper draft. We replace failed throat dampers with modern top-mount stainless units ($200–$600) that seal far more effectively than the originals.
Smoke Chamber Parging
The smoke chamber — the space above the firebox and below the flue — is often built with corbelled (stepped) brick rather than a smooth surface. This creates turbulence that pushes smoke back into the room. Parging (coating) the smoke chamber with refractory mortar ($350–$700) creates the smooth surface needed for efficient draft.
Gas Fireplace Service & Repair
Gas fireplaces are not maintenance-free. Burner ports clog with dust and debris, causing uneven combustion and CO production. Pilot assemblies fail. Gas valves develop leaks. We service all gas fireplace makes and models, run CO safety checks with calibrated equipment, and replace any failing components.