Chimney tuckpointing: what it is, when you need it, what to ask for
Updated Sep 2026·National·Repair — masonry
What is chimney tuckpointing?
Tuckpointing, or repointing, grinds or rakes old mortar out of the joints to a set depth and refills them with new mortar matched to the brick. On a chimney it is done above the roofline, where weather hits hardest.
Cut out and refilled properly it is structural; smeared over the face without cutting the joint out, it fails within a season or two.
When is it actually needed?
When joints are recessed, crumbling or washing out and water is getting in. Freeze-thaw climates bring it round faster.
What standard does it answer to?
NATIONAL · IRC
- The International Residential Code (IRC) — the model building code for one- and two-family homes, adopted and often amended state by state and city by city.
What should the invoice or report show?
Ask how deep the joints will be cut and which mortar type is being matched to your brick, and for photographs of the joints before the work starts.
What does it cost?
- Low
- $8
- Median
- $15
- High
- $30
- Unit
- per sq ft
How we researched this · 3 sources
Low, median and high are drawn from 3 published sources (2 published cost guides, 1 company price page), checked Jul 2026. This is a national range, not a quote and not data from listings on this site. Region, roof pitch, access and what an inspection finds all move the real price.
Does your state regulate this?
The IRC is a national model document, not state law: which edition applies to your home, if any, depends on the codes your state and city have adopted. Few jurisdictions name chimney or hearth work in a credential at all; the rule that usually touches a job like this is about the company — a general contractor or home-improvement license or registration where the state has one, sometimes only above a dollar threshold. Our 50-state laws table and licensing by state set out what each state requires.
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Questions about chimney tuckpointing
When is chimney tuckpointing needed?
When joints are recessed, crumbling or washing out and water is getting in. Freeze-thaw climates bring it round faster. The work answers to the IRC.
Is chimney tuckpointing regulated by state law?
The IRC is a national model document, not state law: which edition applies to your home, if any, depends on the codes your state and city have adopted. Few jurisdictions name chimney or hearth work in a credential at all; the rule that usually touches a job like this is about the company — a general contractor or home-improvement license or registration where the state has one, sometimes only above a dollar threshold. Our 50-state laws table and licensing by state set out what each state requires.
What should I ask before agreeing to chimney tuckpointing?
Ask how deep the joints will be cut and which mortar type is being matched to your brick, and for photographs of the joints before the work starts.