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St. Louis, MO Aiopro1701@gmail.com
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Our Work

Real projects, real results. Browse our gallery to see how we transform, repair, and protect chimneys across the St. Louis area.

Chimney Cricket (Saddle) Built From Scratch

A wide chimney with nothing behind it — just a flat trough collecting rain, leaves and ice. We tore off the failed tar-and-flashing patchwork, framed a proper cricket into the deck, and re-wove the shingles and counter-flashing so water now splits around the chimney.

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Tear-Off — Removing the Failed Flashing

Tear-Off Old chimney step flashing and shingle courses torn off down to the roof deck — no cricket present behind chimney

Framing & Decking — Built to Shed Water

Level Ridge Wood cricket ridge board framed behind chimney with a level confirming the ridge is dead straight
Decked Completed cricket framing decked in OSB behind the chimney, tied into the back wall and ready for underlayment and new flashing

Shingling In — Hand-Cut Into Both Valleys

Shingling AIO Pro technician hand-cutting and nailing shingle courses into the new chimney cricket valleys — South St. Louis 63111

After — Cricket, Flashing & Fresh Crown Coat

Finished Cricket Finished chimney cricket shingled and flashed with new counter-flashing — water now splits around the chimney, South St. Louis MO
Crown Coat + Cap Freshly sealed chimney crown coat with new stainless mesh cap installed above the rebuilt cricket

Structural Crack — Above-Roofline Rebuild

A previous crew had bolted a metal plate over the crack. It hid the problem while the freeze-thaw cycle kept widening it. We took the exposed section down to sound masonry and rebuilt it with a proper crown.

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Before — Structural Crack & Failed Patches

Before Maryland Heights chimney with vertical structural crack running down face — failed patch plate visible
Before Side view of Maryland Heights chimney showing crown damage and mortar failure at top
Before Third angle of Maryland Heights chimney damage — vertical crack continuing down face with efflorescence

Demolition — Down to Sound Structure

Removing Chimney demolition close-up showing failed brick and old mortar being removed
Scale of Work Wide ground-level view of chimney during demolition with scaffolding ladder
Scale of Damage Large pile of demolished brick debris on tarp — scale of above-roofline rebuild scope

Rebuild — Precision Craftsmanship

Plumb Guide Wood plumb guide board attached to chimney for perfectly straight new brick courses
Rebuild Progress Wide view of chimney partially rebuilt with new brick courses laid on old lower structure
Course Detail New structural clay brick course being laid with string level and fresh mortar
Near Complete Chimney nearly finished — new brick to top, level board for crown formwork, new flashing at base

After — Sound for Another 60 Years

Finished Top Rebuilt chimney top with new brick, crown, flue tile and stainless cap — Maryland Heights MO
Crown Detail Top-down view of freshly poured concrete crown with new flue tile and cap
Wide View Wide view of Maryland Heights chimney — original lower section preserved, rebuilt top blends seamlessly
Full Context Full chimney height from ground level — showing original character preserved with new stable top

Wood Stove Liner Replaced to Code

Rusted single-wall pipe running straight through a combustible ceiling — no thimble, no clearance. Replaced with a full Class A insulated system to NFPA 211.

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Before — Fire Hazard, Not to Code

Danger Old rusted single-wall stovepipe passing directly through wood ceiling and Styrofoam insulation — extreme fire hazard
Not Code Single-wall stovepipe extending above roof — not code compliant, no Class A pipe
Before Workshop wood barrel stove with old rusted chimney pipe before code-compliant replacement

After — Class A Insulated, NFPA 211 Compliant

Class A + Cap New stainless steel Class A insulated chimney pipe with spark arrestor cap and storm collar flashing
Roof Sealed Roof after wood stove chimney replacement — old penetration patched, new flashing installed
Interior Done Workshop wood stove with new black double-wall stovepipe and proper ceiling support thimble

Recurring Leak, Permanently Solved

Two contractors had already "fixed" this leak. We found three separate entry points on the first visit — and closed every one of them.

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Before — What The Roof Looked Like

Before Wentzville brick chimney before repair — right flue tile flush with crown, water entry risk

Diagnosis — Every Leak Source Identified

Leak #1 Failed flashing corner at chimney base with exposed underlayment — Wentzville MO
Leak #2 Wider view of failed flashing perimeter with multiple failure points
Bonus Find Torn ridge cap shingle at roof edge — unrelated to chimney but active leak source

Repair — Every Point Sealed

Flashing + Extender New black flashing installed and flue extender visible on right flue tile — Wentzville
Ridge Fixed Ridge cap shingle repaired at roof edge — bonus leak source eliminated
Extender Detail New clay flue extender installed on right flue with fresh mortar seal

After — Sealed, Coated, Capped for 20 Years

Complete Wentzville chimney fully restored — 20-year crown coat, dual stainless damper caps, all flashing sealed
Damper Adjusted Extended damper cap cable and spring mechanism — adjusted for taller flue

Above-Roofline Chimney Rebuild

Only the section above the roof had failed — the masonry inside the house was sound. Rebuilt from the roofline up, at roughly a third of the cost of a full teardown.

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Before Failed chimney above roofline — no crown, crumbling top brick courses, loose bricks — rural St. Louis area
In Progress New brick courses laid mid-rebuild — fresh mortar, proper alignment before crown pour
After Fully rebuilt chimney above roofline — new brick, new crown, new clay flue tile, new stainless cap with spark arrestor

Chimney Relining + Top-Mount Damper

Insulated stainless liner, plus a top-sealing damper that actually seals — against a silicone gasket at the top of the flue, not metal resting on metal.

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Step 1 — Demolish the Old Clay Tile Liner

Old Liner Interior view down the old clay tile flue with damaged smoke chamber — High Ridge MO 63055
Demo Tools Stone chimney top with liner breaker rods and DeWalt drill during demolition
Breaker In Top-down view of flue with liner breaker rod inserted for clay tile demolition

Step 2 — Install Insulated Stainless Steel Liner

Pre-Insulated New insulated stainless steel chimney liner wrapped in ceramic wool blanket on roof
Inserting Technician feeding insulated stainless steel liner down into the chimney flue
Seated New insulated liner seated on chimney crown with ceramic wool packing seal

Step 3 — Seal Connection + Install Top-Mount Damper

Sealed New liner sealed with refractory collar and high-temperature silicone at smoke chamber connection
Top Damper New stainless steel top-mount damper installed on High Ridge stone chimney
Interior Control Interior firebox view of top-mount damper control chain and mechanism

Chase Leak — Hidden Damage Repair

It started as a routine inspection. Green streaking on the siding was the only clue. We took a panel off and found the sheathing rotted through.

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Before — Green Staining on Siding (The Warning Sign)

Before Green algae staining on siding around dryer vent on chimney chase — O'Fallon MO 63368
Before Vertical black-green streaks running down side of chimney chase — sign of hidden water damage

Discovery — What Was Hiding Underneath

Rot Found Vertical strip of severely rotted sheathing exposed after removing siding on chimney chase
Rot Found Blackened rotted wood around dryer vent penetration on chimney chase — hidden water damage
Source Found Rot at gutter line — source of the water infiltration traced to failed roof-to-chase junction

Repair — New Sheathing, Professional Weather Barrier

WRB Install Pactiv GreenGuard weather-resistive barrier installed on chimney chase after wood replacement
New Sheathing Fresh OSB sheathing installed replacing rotted wood on chimney chase
WRB + Vent Weather barrier detail around dryer vent opening — proper penetration sealing

After — Sealed, Restored, Water-Tight

After Chimney chase after full restoration — new siding, new dryer vent, clean trim work — O'Fallon MO
After Wide view of finished chimney chase repair — no more staining, water damage sealed permanently

Complete Restoration + Water Heater Liner

Cracked crown, failing joints, and an aging water heater flue liner — three separate problems handled in a single visit, on a single setup.

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Before — Failed Crown, Cracked Bricks, Aging Liner

Before Chesterfield brick chimney with cracked concrete crown and deteriorating mortar joints — before restoration
Before Close-up of severely spalled brick and open mortar gaps on Chesterfield chimney

Process — Tuckpointing, Crown Formwork & New Liner Install

Tuckpointing Chimney tuckpointing in progress — upper rows filled with fresh mortar
Tuckpointing Second side of Chesterfield chimney mid-tuckpointing
Crown + Liner New concrete crown poured with wooden formwork and new metal water heater flue liner visible

After — Structurally Sound, Sealed, Safe

After Chesterfield chimney fully restored — clean brick, fresh crown, new cap
After Head-on view of finished chimney restoration with uniform mortar joints
After Top-down view of finished crown with new water heater liner installed — Chesterfield MO

Chase Cover Replacement — Stainless

A rusting galvanized pan replaced with a custom-fabricated stainless cover, cross-broken so water sheds instead of pooling on top.

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Before Rusted galvanized chase cover with water damage streaks on prefab chimney — Swansea IL 62226
After New custom stainless steel chase cover with cross-break for water drainage — Swansea IL

Stone Chimney Repointing

Every joint cleared by hand chisel. A power grinder has no straight line to follow on stone — it skips, and it scars the face permanently.

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Before — Failed Mortar, Open Gaps Between Stones

Before Stone chimney with failed mortar and open gaps at the base before repointing — Maryland Heights MO
Before Top of stone chimney showing severely eroded mortar joints between stones — Maryland Heights MO 63043

After — Fresh Mortar, Hand-Tooled to Match

After Stone chimney after professional repointing — fresh color-matched mortar between stones
After Close-up of fresh mortar packed between natural stones after repointing
After Restored natural stone chimney — side angle view of finished repointing work in Maryland Heights MO

Full Chimney Tuckpointing

Century-old lime mortar that had run out of binder. Ground out to full depth and repointed with a mix matched for both colour and hardness.

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Before — Failed Mortar & Spalling Brick

Before Failed chimney mortar joints with efflorescence before tuckpointing — University City MO 63121
Before Close-up of spalled brick face and white efflorescence on chimney before repair
Before Deteriorated mortar joints on opposite side of chimney before tuckpointing

Process — Grinding Out Old Joints to Proper Depth

Joints Cut Out Old mortar joints ground out to proper depth — tuckpointing in progress
In Progress AIO Pro Chimney tuckpointing work in progress on University City chimney

After — Restored & Sealed

After Finished tuckpointing — restored brick chimney in University City MO
After Close-up of fresh mortar joints after professional tuckpointing
After Completed chimney tuckpointing — side view of finished work

Full Chimney Restoration

A complete structural restoration, taking an unsafe, crumbling structure through the rebuilding process to a flawless, sealed finish.

Before Before
Process Process
After After

Tuckpointing & Custom Chase Cover

Grinding out deteriorated mortar joints, matching the structural integrity, and installing a custom-fabricated chase cover to permanently stop leaks.

Before Before
After After

Concrete Crown Restoration

Removing severely cracked and degraded concrete crowns that allow water damage, and casting a brand new, weather-tight crown.

Before Before
After Crown restoration — new chase cover installed

Firebox Panel Replacement

Replacing cracked and dangerous refractory panels inside the firebox to ensure safe, efficient burning without heat transfer risks.

Before Cracked firebox — refractory panels broken
After New refractory panels installed

Smoke Chamber Parging

Smoothing and sealing the smoke chamber to improve draft efficiency and eliminate hazardous creosote buildup zones.

Before Before
After After

Masonry Rebuild

Tearing down compromised brickwork and executing a perfect, structurally sound masonry rebuild from the roofline up.

Before Before rebuild
Process During rebuild process
After Masonry rebuild completed — parged and sealed chimney

Chimney Sweep & Cleaning

Professional chimney sweep using commercial HEPA equipment. Complete creosote removal from flue, firebox, smoke chamber, and smoke shelf — zero dust in your home.

Equipment Setup Chimney sweep setup — HEPA vacuum and brush equipment ready
In Progress Chimney sweep in progress — sealed fireplace with HEPA vacuum

Gas Fireplace Service

Annual gas fireplace inspection and cleaning — burner ports, pilot assembly, gas valve test, and CO safety check. Keeps your gas appliance safe and efficient all season.

Gas Logs Service Gas fireplace with logs burning — after service
Insert Service Elegant marble fireplace insert — gas service

Air Duct Cleaning

follows NADCA standards whole-home HEPA duct cleaning. Before-and-after camera documentation. Cleaned to NADCA standard, the industry benchmark for duct cleaning.

Before Air duct interior before cleaning — heavy dust accumulation on walls
After Duct opening after HEPA cleaning

Dryer Vent Cleaning

Full dryer vent line cleaning from appliance to exterior. Lint extraction, airflow test, and flex duct replacement if needed. NFPA: 34% of dryer fires are caused by failure to clean.

Before — Fire Hazard Critically clogged dryer vent before cleaning
After — Vent Clear Large lint mass extracted — vent clear

Chimney Waterproof Seal

Professional vapor-permeable waterproof sealant system applied to a deteriorating chimney. The sealant blocks rain from entering the masonry while allowing trapped moisture to escape — preventing the freeze-thaw spalling that destroys unprotected brick over Missouri winters. 10-year protection guarantee included.

Before — Exposed Masonry Chimney masonry before waterproof seal — exposed and vulnerable
After — Sealed & Protected Chimney after waterproof seal application — 10-year protection

Chimney Flashing Repair — Job 1

Complete step flashing and counter flashing replacement on a stone chimney. The old flashing had completely separated from the masonry, allowing water to pour into the attic with every rain. RhinoRoof U20 ice-and-water shield applied first, new custom-bent flashing installed and sealed tight.

Before — Separated Chimney flashing separated from masonry before repair
After — Sealed New chimney flashing installed and sealed after repair

Chimney Flashing Repair — Job 2

Full flashing replacement on a brick chimney — step flashing removed, new base and counter flashing bent and installed at the roofline. Two-phase process shown: flashing tucked into mortar joints and sealed, then finished with shingles wrapped tight to the chimney.

During — Step 1 Chimney flashing installation step 1 — base flashing
During — Step 2 Chimney flashing installation step 2 — counter flashing

Chimney Cricket (Saddle) Installation

A chimney cricket is a peaked ridge built behind a wide chimney to divert rainwater around it instead of pooling against the back wall — the #1 cause of leaks on chimneys wider than 30 inches. Any chimney over 30" wide is required by code to have a cricket. This job shows the full build: framing, sheathing, leveling, waterproofing underlayment, and final shingled finish.

Before — No Cricket, Water Pooling

Before Wide chimney with no cricket — water pooling behind chimney

Process — Framing & Construction

Frame Build Cricket frame being built behind chimney
Leveling Cricket frame leveled with spirit level
Waterproofing Waterproofing underlayment applied over cricket frame

After — Finished & Shingled

After Completed chimney cricket shingled and sealed — water diverted
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