Chimney Repair Cost: DIY vs Hiring a Mason or Sweep (2026)
Updated
Verdict Hire a pro · Repoint the stack above the roofline, crown sealed, new cap
Chimney repair costs $585–$745 to do yourself and $600–$1,800 to hire a pro, per chimney, repointed above the roofline (about 40 sq ft of brick), crown sealed, new cap.
Hire a mason to repoint the stack: it's $1,100 against about $665 in mortar, sealer, a grinder, a cap and a harness, and the $435 you'd save buys 8–14 hours of grinding and packing joints on a roof — the one place a fall is a certainty rather than a risk. Hire the flashing too, where the leak is and where a bad job puts water in the framing, and any rebuild, leaning stack or spalled brick. The one job to do yourself is the top: a new cap and a sealed crown from a walkable roof with a harness anchored to something solid, about $410 against $450 from a sweep — a wash the first time, because the harness is most of it, and a real saving every time after. Get a Level 2 camera inspection before any of it; the liner you can't see is the repair that matters.
- DIY New cap and crown seal
- Hire Repoint the stack above the roofline, crown sealed, new cap
- Hire Replace the flashing
- Hire Rebuild the stack above the roofline with a new crown
- DIY cost
- $585–$745
- 8–14 hours of your time · repoint the stack above the roofline, crown sealed, new cap
- Pro cost
- $600–$1,800
- typical $1,100 · per chimney, repointed above the roofline (about 40 sq ft of brick), crown sealed, new cap
- Typical savings
- $435
- 40% less than a pro · ≈ $40/hour for your time
- Chimney repairs are priced by the part: a cap $200–$500, a crown sealed $200–$700 or replaced $1,000–$3,000, repointing $500–$2,500, flashing $300–$1,800, a stack rebuilt above the roof $1,500–$5,000, a liner $900–$7,000. Most chimneys need two at once.
- DIY is the top of the stack from a walkable roof: a cap and crown seal about $410 against $450 (the harness is most of it), repointing about $665 against $1,100 — a $435 saving for 8–14 hours on the roof.
- Hire the flashing, any rebuild, anything on a steep or high roof, and any chimney that hasn't had a Level 2 camera inspection — the liner you can't see is the repair that matters.
- Water in the fireplace has four sources: cap, crown, joints, flashing. Fixing one when another is the leak is the most common wasted chimney dollar.
DIY vs pro at a glance
| DIY | Pro | |
|---|---|---|
| Cost per job (repoint the stack above the roofline, crown sealed, new cap) | $585–$745 | $600–$1,800 |
| Cost range (all sizes) | $330–$1,605 | $200–$5,000 |
| Your time | 8–14 hours | Getting quotes, ~1–2 hours |
| Skill needed | Advanced | None |
| Injury / damage risk | High | Carried by the contractor (if insured) |
| Equipment you'd need to buy or rent | Roof safety harness, rope and anchor, Caulk gun, wire brush, putty knife, drill and masonry bit, Angle grinder with a tuckpointing blade, dust shroud and vacuum, Pointing trowel, tuck pointer, jointer, mortar hawk and board, Respirator with P100 filters, safety glasses, gloves | None |
| Permit | Sometimes — you apply | Sometimes — usually pulled by the pro |
| Best when | It's a cap, a crown seal or repointing on a stack you can reach from a walkable roof with a harness anchored to something solid | The chimney leaks in the rain — that's flashing, a roofer's job, and a bad job rots the framing |
What pros charge for chimney repair
| Job size | Low | Typical | High |
|---|---|---|---|
| New cap and crown seal — a stainless cap with a spark screen bolted to the flue tile, and hairline crown cracks filled and coated with an elastomeric crown sealer; a morning on the roof | $200 | $450 | $700 |
| Repoint the stack above the roofline, crown sealed, new cap — old mortar ground out 3/4 inch deep on about 40 sq ft of brick and repacked with a matching Type N mortar, the crown sealed, a new cap; a standard chimney on a walkable roof | $600 | $1,100 | $1,800 |
| Replace the flashing — shingles lifted, new step flashing woven in, counter-flashing cut into a reglet in the mortar joints and sealed, a cricket if the chimney is over 30 inches wide; the repair for a chimney that leaks in the rain | $500 | $1,000 | $1,800 |
| Rebuild the stack above the roofline with a new crown — the top 4 feet taken down to sound brick and relaid with new flue tile, a cast concrete crown with a drip edge, new cap and flashing; spalled, leaning or crumbling chimneys | $1,800 | $3,000 | $5,000 |
What moves the price
- What's wrong, from the top down
- A missing cap is $200–$500; a cracked crown sealed $200–$700 or replaced $1,000–$3,000; repointing $500–$2,500 by the square footage; flashing $300–$1,800; a stack rebuilt above the roof $1,500–$5,000; a full rebuild to the ground $4,000–$15,000; a new liner $900–$7,000. Most chimneys need two or three of those at once, because the water that cracked the crown also got into the mortar and the flashing.
- Height and roof pitch
- A chimney on a walkable 4/12 roof is priced from a ladder; one on a 10/12 roof or three stories up needs staging or a lift at $300–$1,000 for the setup. Height above the roofline adds brick and mortar per foot, and a tall stack is more likely to lean.
- Brick and mortar match
- Old brick is often a size and a color no longer made; a rebuild that has to match the house takes reclaimed brick at $1–$3 each and time to find it. Mortar has to match in strength as well as color — hard modern mortar on soft old brick spalls the brick.
- The inspection
- A Level 2 camera inspection ($200–$500) is what tells you whether the liner is cracked, which changes the job from a $1,100 repoint to a $1,100 repoint plus a $3,000 liner. Any chimney that's had a fire, a leak or a change of fuel gets one first; a sale requires one.
- Who does it
- Chimney sweeps (CSIA-certified) handle caps, crowns, liners and inspections and subcontract or do light masonry; masons handle repointing and rebuilds; roofers handle flashing. A leaking chimney often needs two of the three, and the quote you want covers the whole cause, not one symptom.
- Season
- Mortar and crown sealers need 40°F and rising for a day or two. Masons are busiest late summer through fall before burning season; spring repairs are cheaper and the roof is drier.
- Region
- Freeze-thaw country — the Northeast, Great Lakes, Rockies — has more chimney damage and more masons; Southern chimneys fail slower and cost more per hour to fix because fewer people do it. Big metros run 30–50% above the national typical.
Common add-ons
| Add-on | Typical cost |
|---|---|
| Level 2 camera inspection | $200–$500 |
| Chimney sweep before repair | $150–$400 |
| Stainless liner, installed | $1,500–$7,000 |
| Crown replaced rather than sealed | $800–$3,000 |
| Cricket or saddle behind a wide chimney | $300–$1,200 |
| Water repellent on the whole stack | $150–$600 |
| Staging, lift or steep-roof setup | $300–$1,000 |
| Interior damage from the leak: drywall, paint, mold | $300–$2,500 |
What it costs to do it yourself
New cap and crown seal: $330–$490 and 2–4 hours
| Item | Cost | Note |
|---|---|---|
| Roof safety harness, rope and anchor | $90 | Purchase · the item that isn't optional; a chimney is where the roof is steepest and the fall is longest |
| Extension ladder with a stabilizer | $250 | Purchase · most homeowners already own this |
| Caulk gun, wire brush, putty knife, drill and masonry bit | $35 | Purchase |
| Respirator with P100 filters, safety glasses, gloves | $45 | Purchase |
| Stainless steel chimney cap with spark screen | $90 | sized to the flue tile; multi-flue caps are $150–$300 |
| Elastomeric crown sealer, crack filler and brush | $70 | Materials |
| Disposal | $0–$60 | Dump fees, haul-away or bagging |
| Permit | $0–$100 | not for caps, crowns, repointing or flashing; usually required to rebuild a stack or install a liner, with an inspection |
| Total (own common tools) | $330–$490 | typical $410 |
| Total (own nothing) | $580–$740 | buying every tool listed |
Repoint the stack above the roofline, crown sealed, new cap: $585–$745 and 8–14 hours
| Item | Cost | Note |
|---|---|---|
| Roof safety harness, rope and anchor | $90 | Purchase · the item that isn't optional; a chimney is where the roof is steepest and the fall is longest |
| Extension ladder with a stabilizer | $250 | Purchase · most homeowners already own this |
| Caulk gun, wire brush, putty knife, drill and masonry bit | $35 | Purchase |
| Angle grinder with a tuckpointing blade, dust shroud and vacuum | $110 | Purchase · for grinding out joints and cutting the reglet; a hammer and a plugging chisel are the slow alternative |
| Pointing trowel, tuck pointer, jointer, mortar hawk and board | $40 | Purchase |
| Respirator with P100 filters, safety glasses, gloves | $45 | Purchase |
| Stainless steel chimney cap with spark screen | $90 | sized to the flue tile; multi-flue caps are $150–$300 |
| Elastomeric crown sealer, crack filler and brush | $70 | Materials |
| Type N mortar, 3 bags, with pigment to match | $45 | Materials |
| Mortar and brick water repellent, 1 gallon | $60 | Materials |
| Disposal | $0–$60 | Dump fees, haul-away or bagging |
| Permit | $0–$100 | not for caps, crowns, repointing or flashing; usually required to rebuild a stack or install a liner, with an inspection |
| Total (own common tools) | $585–$745 | typical $665 |
| Total (own nothing) | $835–$995 | buying every tool listed |
Replace the flashing: $515–$675 and 6–10 hours
| Item | Cost | Note |
|---|---|---|
| Roof safety harness, rope and anchor | $90 | Purchase · the item that isn't optional; a chimney is where the roof is steepest and the fall is longest |
| Extension ladder with a stabilizer | $250 | Purchase · most homeowners already own this |
| Caulk gun, wire brush, putty knife, drill and masonry bit | $35 | Purchase |
| Angle grinder with a tuckpointing blade, dust shroud and vacuum | $110 | Purchase · for grinding out joints and cutting the reglet; a hammer and a plugging chisel are the slow alternative |
| Tin snips, roofing hammer, flat bar, utility knife | $45 | Purchase |
| Respirator with P100 filters, safety glasses, gloves | $45 | Purchase |
| Step flashing, counter-flashing and a cricket kit in aluminum | $130 | copper is three times the price and lasts the life of the roof |
| Polyurethane sealant, roofing cement, replacement shingles and nails | $60 | Materials |
| Disposal | $0–$60 | Dump fees, haul-away or bagging |
| Permit | $0–$100 | not for caps, crowns, repointing or flashing; usually required to rebuild a stack or install a liner, with an inspection |
| Total (own common tools) | $515–$675 | typical $595 |
| Total (own nothing) | $765–$925 | buying every tool listed |
Rebuild the stack above the roofline with a new crown: $1,445–$1,605 and 30–50 hours
| Item | Cost | Note |
|---|---|---|
| Roof safety harness, rope and anchor | $90 | Purchase · the item that isn't optional; a chimney is where the roof is steepest and the fall is longest |
| Extension ladder with a stabilizer | $250 | Purchase · most homeowners already own this |
| Caulk gun, wire brush, putty knife, drill and masonry bit | $35 | Purchase |
| Angle grinder with a tuckpointing blade, dust shroud and vacuum | $110 | Purchase · for grinding out joints and cutting the reglet; a hammer and a plugging chisel are the slow alternative |
| Pointing trowel, tuck pointer, jointer, mortar hawk and board | $40 | Purchase |
| Brick trowel, 4-ft level, line and blocks, brick hammer, mixing tub | $75 | Purchase |
| Roof-mounted staging or a pump-jack setup rental | $200 ($200/day) | Rental · somewhere to stand and stack brick for a week; not a ladder |
| Respirator with P100 filters, safety glasses, gloves | $45 | Purchase |
| Stainless steel chimney cap with spark screen | $90 | sized to the flue tile; multi-flue caps are $150–$300 |
| Mortar and brick water repellent, 1 gallon | $60 | Materials |
| Brick, 220 pieces to match | $300 | $1–$3 each for reclaimed or matched brick; the finding is the hard part |
| Type N mortar, 8 bags, and a clay flue tile section | $180 | Materials |
| Crown form, concrete mix, bond break and a drip edge | $90 | Materials |
| New step and counter-flashing for the rebuilt stack | $130 | Materials |
| Disposal | $0–$60 | Dump fees, haul-away or bagging |
| Permit | $0–$100 | not for caps, crowns, repointing or flashing; usually required to rebuild a stack or install a liner, with an inspection |
| Total (own common tools) | $1,445–$1,605 | typical $1,525 |
| Total (own nothing) | $1,695–$1,855 | buying every tool listed |
Hidden costs of DIY
- The roof
- Every chimney repair is roof work first. A cap swap is ten minutes of masonry and an hour of getting there and back on a pitched roof; repointing is a day of it. Falls from residential roofs are the injury, and a harness with a real anchor is the difference. A 10/12 pitch, a wet roof, a three-story house or a chimney at the ridge is a job for someone with staging.
- Fixing the symptom
- Water in the fireplace has four possible sources: the cap (rain straight down the flue), the crown (cracks that let water into the brick), the mortar joints, and the flashing. Sealing the crown when the flashing is the leak is $70 of sealer and another wet winter. Look at all four, or pay a sweep to.
- The liner
- The part you can't see from the roof. Cracked or missing flue tile lets heat and gases into the framing, and it's found by a Level 2 camera inspection, not by looking down the flue. A chimney that's shed its crown has usually let water into the liner too. $900–$7,000 to reline, and no repointing fixes it.
- Mortar that's too hard
- Modern Type S or premixed bagged mortar is stronger than old soft brick. Pack it into a 1920s chimney and the brick faces spall off within a few freeze-thaw cycles because the mortar won't give. Type N or a lime-rich mix on old brick, matched to the original, is the rule.
- Grinding dust
- Grinding out joints throws silica dust in quantity. A shroud, a vacuum and a P100 respirator aren't optional, and the neighbors' windows are downwind. A hammer and chisel are slower and cleaner.
- What the leak already did
- By the time water shows on the ceiling around a chimney, it's been in the framing and the drywall for a season. Rotten sheathing, stained ceilings and mold in the chase are $300–$2,500 that no chimney quote includes.
- Selling the house
- A buyer's inspector calls out a cracked crown, missing cap, failed flashing or open joints on every chimney they see, and the buyer asks for a Level 2. Repairs done before listing cost what they cost; done as a concession, they cost a mason's quote plus the negotiation.
When to DIY and when to hire
DIY makes sense when
- It's a cap, a crown seal or repointing on a stack you can reach from a walkable roof with a harness anchored to something solid
- The brick is sound — no spalling, no lean, no gaps you can put a finger in — and the flue has been inspected
- You'll use Type N mortar matched to the brick, grind or chisel joints out 3/4 inch deep, and work in weather over 40°F
- You'd rather spend $410–$665 and a day on the roof than $450–$1,100
Hire a pro when
- The chimney leaks in the rain — that's flashing, a roofer's job, and a bad job rots the framing
- The brick is spalling, the stack leans, the crown is broken up, or the joints are open — that's a rebuild and a mason with staging
- The roof is steep, wet, three stories up, or the chimney is at the ridge
- The flue hasn't had a Level 2 inspection, the fireplace has had a fire, or the house is being sold
What it costs
A chimney fails from the top down, and it’s repaired the same way. Water gets past a missing cap or a cracked crown, soaks into the brick, freezes, opens the mortar joints, spalls the faces, and eventually finds the flashing and the ceiling below. Each stage has a price, and most chimneys that need repair need two or three of them at once. The table is a stack repointed above the roofline with the crown sealed and a new cap — the most common combined repair; the calculator prices a cap and crown seal alone, a flashing replacement, and a stack rebuild.
The tiers split by where the work is and who does it. A cap, a crown seal and tuckpointing are masonry at the top of the stack, reachable from a walkable roof with a harness. Flashing is roofing, and it’s the leak. A rebuild is a mason with staging. And under all of it is the liner, which only a Level 2 inspection can see.
What a pro charges
By the part: cap, crown, joints, flashing, stack, liner. Sweeps do caps, crowns, liners and inspections; masons do repointing and rebuilds; roofers do flashing. Height, roof pitch, matching old brick and the season move each price. The quote you want names every part that’s failed, not the one you called about.
What DIY costs
A harness and anchor — most of the cost on a small job, and the item that matters — a stainless cap, crown sealer, Type N mortar with pigment, a grinder with a tuckpointing blade and a dust shroud, a respirator, and the pointing tools. On the repoint tier that’s about $665 against $1,100. The DIY guide covers the roof setup, the joints and the crown.
The verdict
Hire the repoint, the flashing, any rebuild, anything on a steep or high roof, and any chimney that hasn’t had a camera inspection or has had a fire — it’s roof work with a fall at the end of every mistake, and the mason’s $1,100 buys a day you don’t spend on it. The one job to do yourself is the top: a cap and a sealed crown from a walkable roof with a harness anchored to something solid. The hiring guide covers which trade to call and what the quote should say.
Terms worth knowing
The crown is the concrete top that sheds water; tuckpointing is the repair for open joints; counter-flashing is the metal let into the mortar that keeps the roof joint dry; a Level 2 inspection is the camera down the flue that decides everything else.
Run your own numbers. The chimney repair cost calculator prices it both ways: as DIY, with the tools you already own and a value on your time, or as a pro job at a low, typical or high quote with the add-ons that apply.
Frequently asked questions
How much does chimney repair cost?
$200–$850 for the common fixes — a new cap, a crown sealed, a small area repointed — and $750 is the national typical for a repair visit. The big jobs: repointing a whole stack $500–$2,500, flashing $300–$1,800, rebuilding the stack above the roofline $1,500–$5,000, a full rebuild to the ground $4,000–$15,000, a stainless liner $900–$7,000. Because water damage travels, most chimneys need two of those at once; a repoint with a crown seal and a new cap is about $1,100.
How much does chimney flashing repair cost?
$300–$1,800, with $1,000 typical to replace it: shingles lifted, new step flashing woven in course by course, counter-flashing cut into the mortar joints and sealed, and a cricket behind a chimney over 30 inches wide. Resealing existing flashing is $150–$400 and lasts a few years; replacing it lasts the roof. Flashing is the leak on most chimneys that drip in the rain, and the site's verdict is to hire it — a bad job rots the framing.
How much does it cost to repair a chimney crown?
$200–$700 to fill hairline cracks and coat the crown with an elastomeric sealer, which is the fix for a crown that's cracked but intact; $1,000–$3,000 to break out and recast a crown that's crumbling, with a proper overhang and drip edge. A crown that's failing has usually let water into the brick below, so the quote often adds repointing. Sealing a sound crown is a DIY job from a walkable roof; recasting one isn't.
How much does it cost to rebuild a chimney?
$1,500–$5,000 to take the stack down to sound brick — typically the top 3–5 feet above the roof — and relay it with new flue tile, a cast crown, cap and flashing. $4,000–$15,000 to rebuild the whole chimney to the ground, more for a large or ornate one. Matching old brick, staging on a steep roof and a liner are what push it up. A leaning or spalling stack is a rebuild; repointing won't hold it.
Is chimney repair covered by homeowners insurance?
Sudden damage — lightning, a fallen tree, a chimney fire, wind — usually yes, minus the deductible. Deterioration from water, freeze-thaw, age and lack of maintenance — which is what most chimney repair is — no; insurers call it wear and tear. A leak that's been going on for a season is the second kind. Document any storm damage with dated photos before repairs start.
Can I repair a chimney myself?
The top of it, from a walkable roof, with a harness: bolting on a new cap, sealing a cracked crown, and repointing open joints with a grinder, a tuck pointer and matched Type N mortar. What you shouldn't do: flashing (it's roofing, and it's the leak), rebuilding a stack, working on a steep or wet roof, or repairing anything without knowing whether the liner is cracked — a Level 2 camera inspection is $200–$500 and tells you whether the $665 repoint is the whole job or a fraction of it.
How do I know if my chimney needs repair?
From the ground with binoculars: a missing or rusted cap, a crown with visible cracks or pieces gone, white staining (efflorescence) on the brick, mortar joints you can see gaps in, brick faces flaking off (spalling), a stack that's not plumb, and rust streaks or lifted metal at the flashing. From inside: water or staining in the firebox after rain, a damp smell, ceiling stains near the chimney, and bits of clay tile in the firebox — which means the liner is breaking up.
What is a Level 2 chimney inspection and do I need one?
A camera run through the flue to inspect the liner, plus the accessible parts of the chimney inside and out, by a certified sweep — $200–$500. The NFPA 211 standard calls for it at any sale, after any chimney fire or storm damage, when the fuel or appliance changes, and after a leak. It's the only way to know the liner's condition, and a cracked liner is the repair that can't be seen from the roof or fixed by repointing. Get one before any repair over a few hundred dollars.
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.