Most people call this work tuckpointing, and that is probably what you searched. The masonry trade's reference documents give the word a narrower meaning, explained below, but either term is fine when requesting a quote.
Chimney4u looks at the whole chimney before quoting, and the written scope names the areas, the mortar and any bricks to be replaced. Work begins only once you approve it.
Masonry problems this work addresses
Joints worn back from the brick face
Mortar is meant to weather before the brick does. Once a joint recedes, rain sits in the recess and works deeper into the wall.
Crumbling, cracked or missing mortar
Mortar that crumbles under a key, fine cracks along a joint, or a hairline gap where mortar has let go of the brick all let water in.
Spalled brick
A brick whose face has flaked away absorbs water readily through the softer body underneath. Spalling often follows when saturated masonry freezes, and it tends to spread.
Damage from an earlier hard-mortar repair
A stiff, cement-rich patch can do more harm than the wear it fixed. The Brick Industry Association requires repointing mortar to be no stronger than the original, since stronger mortar concentrates stress where brick meets mortar and spalls the brick face.
White bloom that keeps coming back
Efflorescence is salt carried out by water moving through masonry. When it returns after cleaning, water is often still getting in somewhere above.
The parts named on this page, from the cap and crown at the top to the flashing where the chimney meets the roof.
What masonry repair from Chimney4u includes
Tracing the water first
New joints are unlikely to hold on a chimney still fed water by a cracked crown, failed flashing or a missing cap, so those are checked first; see leak and flashing repair.
Mortar matched to your masonry
New mortar is chosen to be no stronger than what is already in the wall, and matched in color, sand and joint profile as closely as the materials allow.
Joints cut out, packed and tooled
Worn mortar comes out to an even depth that reaches sound material, without chipping brick edges. Fresh mortar is packed in and tooled at thumbprint hardness, as the Brick Industry Association advises; where no existing profile has to be matched, it finds concave, V and grapevine joints resist water penetration most effectively.
Replacing spalled brick
Bricks that have lost their face are cut out one by one and replaced with the closest match in size, color and texture. Brick exposed to wet and freezing must meet the severe weathering grade, per the Brick Industry Association.
Photos and a plain account
Before and after photos are shot from the same positions wherever possible and handed over to you, with a note of what was left alone because it is still sound.
Why the chimney is inspected before repointing
Crumbling joints are often a symptom. Mortar tends to fail where water reaches it, so the damage pattern usually points back to loose flashing, a missing cap or a crown without enough overhang; CSIA notes a crown should overhang the chimney's sides so rain falls clear rather than washing down the face.
The inspection also checks whether damage stops at the joints. Cracks through the bricks, a lean or widespread spalling suggest a structural problem that repointing would not solve. For a full assessment first, book a chimney inspection.
Repointing, tuckpointing and rebuilding
Repointing replaces worn mortar in the joints. Tuckpointing, in the strict sense, is a decorative finish applied to joints rather than a repair, and rebuilding replaces the brick itself above a chosen line. A request for chimney tuckpointing usually means repointing, which is what this page covers.
Masonry repair keeps the chimney's structure and restores its weather surface; once bricks have failed across much of the stack, or the chimney has moved, the job becomes chimney rebuilding. Joint work is also one part of chimney repair, alongside crowns, caps, flashing and liners.
What affects the cost of masonry repair
The inspection and the scope you approve set the price, and these are the main variables.
- How much of the chimney needs work
- A few failed joints and a whole face are different jobs, as are a few replacement bricks and many.
- Access and height
- Ladder access, a steep roof needing staging and a chimney needing scaffolding are three different setups, and access can cost more than the mortar work.
- Hardness of the existing mortar
- Soft, sandy mortar comes out readily. Hard, cement-rich mortar in narrow joints has to be worked out carefully to protect the brick edges.
- Matching mortar and brick
- Old or patched masonry may need a custom mortar mix, sometimes after testing, and brick that matches old units while suiting wet, freezing exposure can be hard to find.
- Fixing the water source
- If a crown, cap or flashing problem caused the damage, fixing it belongs in the same scope, or the repointing may need doing twice.
You get a written scope and price before any repair work begins.
Puget Sound weather and chimney mortar
The Puget Sound lowlands rarely get deep snow; Sea-Tac's normal annual snowfall is only 6.3 inches. The bigger issue for mortar is persistent wetness: at Sea-Tac, November is the wettest month at a 6.31-inch normal, with January and December close behind. Toward the foothills and river valleys on the eastern side of the area Chimney4u serves, conditions are generally colder and wetter still.
Masonry soaks up rain through tiny capillaries and dries out by evaporation, and leaks begin when a chimney never fully dries between wettings. Chimney4u picks mortar and methods with that wet season in mind rather than a one-size spec.
Questions about masonry repair & tuckpointing
Is tuckpointing the same thing as repointing?
In everyday speech, yes. Technically, no: the National Park Service's repointing brief treats repointing as the correct term for replacing deteriorated mortar and tuck pointing as a different, decorative technique, and the Brick Industry Association's glossary says tuckpointing is incorrectly used interchangeably with repointing. On a quote, cut-back depth and mortar matter more than the word.
Why shouldn't new mortar be as strong as possible?
Masonry moves slightly with temperature and moisture, and that movement has to go somewhere. A joint softer than the brick gives a little; a harder one does not, so the stress goes into the brick and can spall its face. The Brick Industry Association's rule is to use the lowest-strength mortar type that meets the job's requirements.
Does repointing a chimney need a permit?
Don't assume either way; the permit office with jurisdiction at your address decides, and the answer can change with the scope. Inside Seattle city limits, a permit is generally required to alter or repair a structure, and the city's rule for masonry chimney repair is SDCI Director's Rule 07-2025. Anywhere else, ask your city's permit office, or the county's if you live outside city limits. Describe the whole job when you ask, including any brick replacement, since work beyond the joints raises its own questions.
Will the new mortar match the color of the old?
A close match is usually possible by adjusting the sand and pigment, but old mortar has weathered, so new joints can look fresher at first. Matching the old mortar's strength matters more for the brick than an exact color does.
Should the whole chimney be repointed, or only the bad joints?
Where damage is limited and the rest is sound, spot repointing usually makes sense. When failure is widespread, or the chimney is hard to reach, doing a whole face in one visit can be more sensible. The written scope names the areas.
Sources for the facts on this page (12)
- Technical Notes on Brick Construction 46 - Maintenance of Brick Masonry — Brick Industry Association, December 2017. Accessed 2026-08-27.
- Technical Notes on Brick Construction 7B - Water Penetration Resistance: Construction and Workmanship — Brick Industry Association, November 2017. Accessed 2026-08-27.
- Technical Notes on Brick Construction 9B - Manufacturing, Classification and Selection of Brick: Selection, Part 3 — Brick Industry Association. Accessed 2026-08-27.
- Four Low-Cost Recommendations to Prevent Major Water Damage — Chimney Safety Institute of America (CSIA), dated June 11, 2010. Accessed 2026-08-27.
- Preservation Briefs 2: Repointing Mortar Joints in Historic Masonry Buildings — U.S. National Park Service, Heritage Preservation Services (Robert C. Mack, FAIA and John P. Speweik), October 1998, ISSN 0885-7016. Accessed 2026-08-27.
- Technical Notes on Brick Construction 2 - Glossary of Terms Relating to Brick Masonry — Brick Industry Association, February 2026. Accessed 2026-08-27.
- U.S. Annual/Seasonal Climate Normals 1991-2020, station USW00024233 (full record) — NOAA National Centers for Environmental Information (NCEI). Accessed 2026-08-27.
- U.S. Monthly Climate Normals 1991-2020, station USW00024233 — NOAA National Centers for Environmental Information (NCEI). Accessed 2026-08-27.
- Fixing Leaky Chimney Systems (Part 1 - Water Intrusion) — SaverSystems (ChimneySaver), article by Stuart Karanovich, April 3, 2025. Accessed 2026-08-27.
- Technical Notes on Brick Construction 8B - Mortars for Brickwork: Selection and Quality Assurance — Brick Industry Association, March 2020. Accessed 2026-08-27.
- 2021 Seattle Residential Code, Chapter 1 Scope and Administration — Seattle Department of Construction and Inspections (SDCI). Accessed 2026-08-27.
- SDCI Director's Rule 07-2025, Alteration and Repair of Unreinforced Masonry Chimneys — Seattle Department of Construction and Inspections (SDCI). Accessed 2026-08-27.