Chimney Repair Cost Calculator: Cap, Crown, Repointing, Flashing
Cap, crown, repoint, flashing or rebuild: DIY from $330, a sweep or mason from $200.
- Pick the repair: a cap and crown seal, repointing the stack with crown and cap, replacing the flashing, or rebuilding the top 4 feet. The tools and materials change with each.
- A roof harness is on every DIY tier — it's most of the cost on the cap-and-crown job and the reason that one is a wash against a sweep.
- The flashing and rebuild tiers price the materials so you can see what the trade's labor covers; the site's verdict is to hire both.
- On the Hire a pro tab, tick the Level 2 inspection first, then whatever it finds: a liner, a recast crown, a cricket, staging on a steep roof.
Calculate cost
| Tools to buy or rent | $320 |
|---|---|
| Materials | $265 |
| Disposal | $30 |
| DIY cash cost | $615 |
| Your time (11 h × $25) | $275 |
| DIY all-in | $890 |
DIY saves about $210 after valuing your time ($485 in cash).
National estimates for planning. Doesn't include the risk-side costs described on the comparison page.
Typical results by job size
Defaults the calculator starts from: commonly owned tools excluded, typical pro price, no add-ons.
| Size | Verdict | DIY | Pro | Your hours | Typical savings | Break-even |
|---|---|---|---|---|---|---|
| New cap and crown seal | DIY | $330–$490 | $200–$700 | 2–4 hours | $40 (9%) | $13/hour |
| Repoint the stack above the roofline, crown sealed, new cap | Hire | $585–$745 | $600–$1,800 | 8–14 hours | $435 (40%) | $40/hour |
| Replace the flashing | Hire | $515–$675 | $500–$1,800 | 6–10 hours | $405 (41%) | $51/hour |
| Rebuild the stack above the roofline with a new crown | Hire | $1,445–$1,605 | $1,800–$5,000 | 30–50 hours | $1,475 (49%) | $37/hour |
Break-even is what an hour of your time would have to be worth for DIY and hiring to cost the same. Above it, hiring is cheaper all-in. See how these are calculated.
Reading the result
The repair you pick applies to both tabs.
Do it yourself totals the safety gear every tier needs — a harness, rope and anchor, a respirator and glasses, and the caulk gun, brush and drill — then the tools for that repair: a grinder with a tuckpointing blade and shroud plus pointing tools on the repoint tier, tin snips, a roofing hammer and a flat bar on the flashing tier, a brick trowel, level, line and a staging rental on the rebuild. Materials by tier: a stainless cap and crown sealer; Type N mortar with pigment and a water repellent; step and counter-flashing, sealant and shingles; brick, mortar, a flue tile, a crown form and new flashing for the rebuild. Then disposal, a permit on the rebuild, and your hours at the rate you set: 2–4 for a cap and crown, 8–14 to repoint, 6–10 for flashing, 30–50 to rebuild. An extension ladder is assumed owned.
Hire a pro starts from a low, typical or high price for that repair, then adds what a base quote leaves out: a Level 2 camera inspection, a sweep beforehand, a stainless liner, a crown recast rather than sealed, a cricket behind a wide chimney, water repellent on the whole stack, staging or a lift for a steep roof, and repair of the interior damage the leak already did. Tick what applies and compare.
What neither tab prices: the fall, and the liner. The cost comparison explains why the top of the stack is DIY from a walkable roof and nothing else is, and the DIY guide starts with the anchor and ends with the cap.
Frequently asked questions
Which repair should I pick?
By what's failed, from the top: a missing or rusted cap and a crown with hairline cracks is the first tier. Open or crumbling mortar joints on a stack that's otherwise sound is the repoint tier, which includes the crown seal and cap. Water in the firebox or on the ceiling after rain with the top in good shape is the flashing tier. Spalling brick, a lean, or a crown in pieces is the rebuild tier. A chimney with more than one of those is priced as the biggest tier plus the add-ons.
Why is the DIY cap-and-crown total almost the same as the pro price?
Because the harness, anchor and respirator are $135 of the $410 and the cap and sealer are the rest, while a sweep's $450 includes the trip and twenty minutes on the roof. The safety gear carries over to the repoint tier, where the DIY saving is $435, and to every roof job after. If the cap is the only thing the chimney will ever need, hire it; if the joints are next, the harness pays.
What about the liner?
It isn't in any tier, because it isn't a DIY job and it isn't known until the flue is scanned. Tick the Level 2 inspection on the Hire a pro tab and, if you already know the liner's cracked, the stainless liner add-on: $1,500–$7,000 by height, diameter and insulation. Repointing a stack over a failed liner is the most common way to spend $1,100 on a chimney that still isn't safe to use.
What do the quote levels mean for chimney repair?
Low is a short stack on a walkable roof, sound brick, standard cap, in a region with many masons and sweeps, in spring. Typical is the national median for that repair on a one- or two-story house, with matched mortar, a stainless cap and photos of the work. High is a steep or three-story roof needing staging, a tall or wide chimney, matched reclaimed brick, copper flashing, a big metro, or fall booking season. Inspection, sweep, liner, recast crown, cricket, water repellent, staging and interior repair are add-ons on any level.
Sources
- Brickmasons and Blockmasons (SOC 47-2021), Occupational Employment and Wage Statistics , U.S. Bureau of Labor Statistics, 2026-04
- How Much Does Chimney Repair Cost? , HomeGuide, 2026-09
- How Much Does It Cost to Repair or Replace a Chimney Crown? , HomeGuide, 2026-09
- How Much Does a Chimney Rebuild or Replacement Cost? , HomeGuide, 2026-09
- How Much Does Chimney Repair Cost? , Angi, 2026-09
- What Do Chimney Repairs Cost? , HomeAdvisor, 2026-09
- How Much Does Chimney Repair Cost? , This Old House, 2026-09
- Chimney Inspections: Levels 1, 2 and 3 , Chimney Safety Institute of America, 2026-09
- NFPA 211: Standard for Chimneys, Fireplaces, Vents, and Solid Fuel-Burning Appliances , National Fire Protection Association, 2026-09
Figures last reviewed . See how we estimate.