Building Maintenance

When stone masonry has shifted, bulged, or deteriorated past the point of patching, it has to come apart and go back together correctly. TNT dismantles failing stonework and rebuilds it to its original line, plumb, and profile, using salvaged and color-matched units set in mortar compatible with the wall.

When brick faces spall, crack, or break away, TNT cuts out the failed units and replaces them with brick matched in size, color, and texture, restoring the strength and watertight envelope of commercial and historic walls.

Crack injection seals active leaks and structurally re-bonds cracked concrete and masonry from the inside, without large-scale demolition.

Waterproofing a commercial masonry building starts with the repairs (tuckpointing, through-wall flashing, and sealants), then a breathable penetrating water repellent that cuts water absorption while letting trapped moisture escape.

Spalled and deteriorated concrete on walls, columns, and overhead surfaces is repaired with structural materials that bond, last, and protect the rebar.

TNT is a commercial tuckpointing contractor serving Iowa, the Quad Cities, and western Illinois. We renew the mortar joints that hold your masonry together and keep water out, with mortar matched to your building so the repair lasts.

Through-wall flashing catches the water that gets into a masonry wall and sends it back out. TNT installs and replaces flashing at lintels, shelf angles, parapets, and window heads, so leaks stop at the source instead of being chased from the inside.

Architectural terra cotta defines many historic facades. We repair and replace deteriorated units while preserving the building's original detail.

From chipped edges to spalled faces, TNT restores limestone and architectural stone on commercial and historic buildings, patching with color-matched mortars and replacing units past saving. Stone that has moved out of plane needs stone rebuilding.

Stone consolidation strengthens crumbling, friable stone in place, preserving irreplaceable original material rather than replacing it.

Define the right scope and budget before work begins. We help owners and managers plan masonry projects so there are no costly surprises mid-project.

Traffic coating systems waterproof the surfaces people and vehicles travel on. TNT applies pedestrian and vehicular coatings to parking garages, ramps, plazas, and walkways to protect the concrete structure below.

Parapets take weather on both faces and across the top, so they are usually the first masonry on a building to fail. TNT repairs and rebuilds parapet walls, integrating new coping and through-wall flashing to keep water out of the wall below.

Removing old paint from masonry restores the wall's ability to breathe and reveals the original brick or stone, done gently to protect the substrate.

A facade inspection and masonry investigation puts trained hands and eyes directly on your building to find what's failing, prove why, and define exactly what it will take to fix it, before you set a budget.

Lintels carry the masonry above your windows and doors. When they corrode or sag, the openings crack, and the fix protects the wall above.

When a facade begins to bow, separate, or shift, stabilization re-anchors and secures the masonry before it becomes a structural failure.

A breathable elastomeric coating protects and unifies an aging facade, bridging hairline cracks and shedding water while letting the wall breathe.

Sealant joints are sacrificial: they age, crack, and pull away. TNT removes failed caulking at windows, expansion joints, and precast and panel seams, and installs high-performance sealants that keep water and air out.

Decades of dirt, carbon, and biological growth dull a facade. Careful cleaning restores its appearance without harming the masonry beneath.