Professional chimney tuckpointing with proper 3/4-inch grinding depth, color-matched mortar, and 30+ year results. We do the job correctly so you don't pay twice.
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The Basics
The most misunderstood — and most often done wrong — chimney repair in St. Louis.
Tuckpointing is the process of removing deteriorated mortar from between the bricks of a chimney and replacing it with fresh, properly-matched mortar. It's both structural (waterproof seal between bricks) and aesthetic (clean, sharp lines).
The mortar between your bricks is the weakest part of any masonry chimney. Bricks themselves can last 100+ years — but mortar typically deteriorates after 25-40 years, faster in harsh climates like St. Louis. When mortar fails, water enters the masonry, freezes, expands, and accelerates the destruction.
You'll hear contractors use both terms. Technically, "pointing" means filling joints with new mortar, while "tuckpointing" originally referred to a specific decorative technique. In modern usage in St. Louis, both terms mean the same thing: removing old mortar and installing new mortar.
Without functioning mortar, three things happen:
A $2,500 tuckpointing job today prevents a $15,000 rebuild in 5 years.
Local Conditions
Three factors make St. Louis chimneys deteriorate faster than most U.S. markets.
Many St. Louis neighborhoods are dominated by homes 50-100+ years old. This includes Florissant (1950s-1970s), Kirkwood and Webster Groves (1880s-1920s and 1940s-1960s), University City (1900s-1940s), Clayton (1900s-1950s), and the older sections of nearly every St. Louis County municipality.
Most of these chimneys have never been tuckpointed. Their original mortar is now well past its design lifespan.
The Missouri winter brings the temperature crossing 32°F up to 80+ times per winter. This is brutal for mortar:
By spring, what started as hairline cracks are now visible gaps. Without intervention, those gaps will be 1/4-inch wide within 3 winters.
Missouri summers bring 70-80% humidity for months. This means:
This combination — aging structures, freeze-thaw cycles, and humid summers — makes St. Louis one of the heaviest tuckpointing markets in the United States.
Warning Signs
If you see any of these, schedule an inspection before the next freeze cycle.
Look for missing chunks of mortar between bricks, or visible gaps you can stick a finger into. Even small gaps mean water is entering the masonry.
Finding sand-like or chunk mortar on your roof, gutters, or at the base of the chimney is structural failure in progress. Don't wait.
Efflorescence — a white, chalky deposit on brick exterior — is dissolved minerals being pushed out by water moving through the masonry. Sign of severe moisture problem.
Try scratching mortar joints with a screwdriver or coin. If the mortar crumbles or you can dig in more than 1/8-inch with light pressure, it's failing.
Individual bricks that wobble when touched, or rows of bricks that have shifted, indicate complete mortar failure in that area.
Brown water stains on ceiling or walls near the chimney usually mean water is entering through failed mortar joints, then traveling down inside the masonry.
How We Work
The right way to tuckpoint — exactly the way professional masons have done it for 100+ years.
Full chimney evaluation. We document mortar condition with photos, identify the right mortar match, and provide a written estimate with no obligation.
We grind out old mortar to 3/4-inch depth using angle grinders with diamond blades. Most contractors only grind 1/4-inch — that's why their work fails.
Wire brushing and water rinse to remove all loose particles and dust. The new mortar must bond directly to clean brick — not to old mortar dust.
Custom-mixed mortar matched to your original work — composition (Type N or Type O lime-based for older homes), color (using mortar dye and matched aggregate), and texture.
New mortar packed into joints using hawk and pointing trowels. Joints tooled to match original profile — concave, V-grooved, flush, or struck depending on your chimney.
3-day mist curing protocol — we keep new mortar damp to prevent shrinkage cracks. If rain is forecast in this window, we tarp the chimney to protect it.
Honest Comparison
If someone offered you tuckpointing for $400 — here's why that's not a deal, it's a 5-year time bomb.
The biggest hidden cost isn't redoing the work — it's the structural damage that happens during the failed years. Water that enters through failed mortar damages bricks, flue tiles, and home interior. By the time you redo the tuckpointing, you may also need a $5,000+ rebuild.
Real Work, Real Results
Real chimneys, real before/after photos. Every job documented, every customer satisfied.
Honest Pricing
Transparent ranges based on actual jobs. Free written estimate before any work begins.
For chimneys with localized mortar failure — typically a few rows of bricks or one chimney face.
Complete tuckpointing of all visible chimney faces. Most common service for 25-50 year old chimneys.
Full tuckpointing plus brick replacement, crown rebuild, or other masonry work. Best value when multiple issues exist.
Pricing varies based on chimney height, accessibility, mortar damage extent, and historic considerations. All estimates are free, written, and no-obligation.
Coverage
Heavy demand in older neighborhoods. Click any city for area-specific information.
Related Services
Common Questions
Everything St. Louis homeowners ask before booking.
Professional tuckpointing in St. Louis ranges from $800 to $4,500 depending on chimney size, mortar condition, and accessibility.
Partial tuckpointing (one face or limited area): $800-$1,800
Full chimney tuckpointing (all 4 faces): $1,800-$3,500
Tuckpointing + restoration combo: $3,500-$7,500+
If you've been quoted $400-800 for "tuckpointing" — that's not real tuckpointing. That's a 5-year temporary fix.
Properly executed tuckpointing — with 3/4-inch grinding depth, matched mortar composition, and proper curing — lasts 30-50 years on St. Louis chimneys.
Cheap tuckpointing (1/4-inch grinding, generic mortar, no curing) typically fails within 3-5 years. The work cracks, water re-enters, and you need to start over.
Six common signs:
1. Visible gaps or missing mortar between bricks
2. Mortar pieces or sand on your roof or at chimney base
3. White efflorescence (chalky deposits) on brick
4. Mortar that crumbles when scratched with a screwdriver
5. Loose or wobbly bricks
6. Interior water stains near chimney
If your chimney was built before 1980 and has never been tuckpointed, it likely needs it now.
Three reasons make St. Louis a heavy tuckpointing market:
1. Aging housing stock — many homes are 50-100+ years old with original mortar past its design lifespan
2. Brutal freeze-thaw cycles — temperature crosses freezing 80+ times per winter, causing water to expand and crack mortar
3. Humid summers — 70-80% humidity for months prevents proper mortar drying between rain events
Active work: 1-3 days depending on chimney size and damage extent.
Curing time: 3-5 days during which the chimney should not be exposed to rain. We schedule jobs based on weather forecasts.
Most residential jobs are fully complete (work + curing) within one week.
Done properly, no — your chimney will look essentially the same, just with sharper, cleaner mortar lines.
We color-match new mortar to your original work using mortar dye and aggregate matching. On historic homes, we use period-appropriate mortar compositions and original tooling profiles.
Cheap tuckpointing uses generic gray mortar regardless of age — that's why those jobs look like obvious patches against original work.
Technically yes, but DIY tuckpointing fails almost universally.
The work requires angle grinding to 3/4-inch depth (not 1/4-inch), proper mortar composition matching, correct hawk-and-trowel technique, accurate joint tooling, and 3-day curing protection.
Most DIY tuckpointing fails within 2-3 years and the chimney needs full re-tuckpointing — costing more than hiring a professional initially.
Yes — every tuckpointing job carries a 10-year written workmanship warranty.
Materials carry their own manufacturer warranties (most quality mortars are warrantied for 20+ years).
We've never had a callback on properly executed tuckpointing — because we use the right techniques and materials from the start.
All of Greater St. Louis. We have heavy tuckpointing demand from:
Older neighborhoods: Florissant, Webster Groves, Kirkwood, University City, Clayton, Ladue, Frontenac
St. Charles County: St. Charles, St. Peters, O'Fallon, Wentzville
West County: Chesterfield, Ballwin, Wildwood, Town and Country, Manchester
South County: Fenton, Arnold
