The benchmark numbers
These are national figures from the major cost-research publishers, with publication
dates; we cite them rather than inventing "Boise prices." Chimney repair overall
lands "between $160 and $750" on the low side (HomeAdvisor) and $250–$1,200 with a
$750 average per Fixr (2025); This Old House (2026) stretches the full range to
"$250–$13,300" once rebuilds enter the picture.
Masonry & structure | Job | National range | Source (date) |
|---|
| Tuckpointing / repointing | $500–$2,500 typical; $8–$30 per sq ft; two-story stacks $5,000–$7,000 | HomeGuide; Fixr (2025) |
| Spalled brick repair | $1,000–$2,500 / $1,000–$3,500 | Fixr (2025) / HomeGuide |
| Partial rebuild (roofline up) | $1,500–$4,000; HomeGuide $1,000–$5,000+ | Angi (May 2026) |
| Full rebuild / replacement | avg $9,300, typically $3,100–$15,400; extensive jobs $20,000+ | Angi (May 2026) |
Flue & water protection | Job | National range | Source (date) |
|---|
| Reline (stainless, typical) | $1,200–$4,600; installed totals $900–$7,000 by height/material | Fixr (2025); HomeGuide |
| Liner materials | clay ~$10/sq ft · cast-in-place ~$25/sq ft · stainless ~$65/sq ft, plus $400–$1,250 labor | Angi (May 2026) |
| Crown repair | $150–$350 minor; $750–$1,000; replacement $1,000–$3,000 | HomeAdvisor; Fixr (2025); HomeGuide |
| Cap replacement | $300–$600 installed; hardware $100–$250 | Fixr (2025); This Old House (Mar 2026) |
| Flashing repair | $400–$1,600; minor resealing ~$200 | Angi (Mar 2026) |
Maintenance & appliances | Job | National range | Source (date) |
|---|
| Chimney sweep | $130–$380, avg $255; neglected flues up to $800 | Bob Vila (Oct 2023) |
| Level 1 inspection | from ~$100 | Bob Vila (Oct 2023) |
| Level 2 inspection (sale, post-event) | $200–$1,000 | Bob Vila (Oct 2023) |
| Wood stove / insert install | $3,000–$8,000 installed; insert unit $1,200–$4,000 | HomeGuide |
What legitimately moves a Boise quote
- Roof pitch and access. Bob Vila’s guide puts it plainly: steep
pitches "make access to the chimney more difficult and dangerous, leading to higher
costs." Angi agrees: expect more for "chimneys on high pitch roofs and large,
multi-story homes."
- How far the water got. A cracked crown caught early is a few hundred
dollars; the same crack after five Boise winters of daily January freeze-thaw can mean
spalled courses and a partial rebuild. Early always costs less here.
- Mortar and brick matching. Pre-war chimneys in the
North End and East End need softer
lime-based mortar and, in designated districts, a Certificate of Appropriateness
before the building permit. Both add real cost, for real reasons.
- Permits. Chimney and vent alterations take a mechanical permit in
Boise. For state-jurisdiction HVAC permits, Idaho’s fee rule sets a $100 base
plus $30 for the first appliance, so permit costs are real but small next to the
work itself. A quote that "skips the permit" isn’t a discount; it’s a
liability transfer to you.
Reading a quote like a skeptic
- Scope in nouns: which courses, which joints, what liner diameter and insulation, which permit.
- Photos of what they found, taken from your roof rather than a stock library.
- Mortar spec for repointing on older brick (ask what type and why).
- Registration: every Idaho contractor on a job of $2,000 or more must be registered with the state; check it yourself in two minutes.
When you call (208) 555-0144, you reach an independent local chimney company
that quotes in writing against a real look at the stack. We’re the referral line,
not the crew (full disclosure here).
Sources
- Fixr — chimney repair costs, updated Jan 31, 2025 (overall range; repointing; spalling; crown; cap) · fixr.com
- HomeAdvisor — chimney repair costs ($160–$750 average range; crown figures) · homeadvisor.com
- This Old House — chimney repair costs, updated Mar 12, 2026 ($250–$13,300 full range; cap hardware) · thisoldhouse.com
- HomeGuide — repointing/tuckpointing costs (per-sq-ft and per-job ranges) · homeguide.com
- HomeGuide — chimney repair costs (spalling; liner installed totals; rebuilds) · homeguide.com
- Angi — chimney liner costs, updated May 30, 2026 (material per sq ft; labor) · angi.com
- Angi — chimney replacement costs, updated May 30, 2026 (avg $9,300; rebuild ranges) · angi.com
- Angi — chimney flashing repair, updated Mar 17, 2026 ($400–$1,600; access factors) · angi.com
- HomeGuide — chimney crown repair/replacement costs · homeguide.com
- Bob Vila — chimney sweep costs, updated Oct 6, 2023 · bobvila.com
- Bob Vila — chimney inspection costs, updated Oct 6, 2023 · bobvila.com
- HomeGuide — wood stove installation costs · homeguide.com
- City of Boise — Homeowner’s Guide (mechanical permits for chimney/vent work) · cityofboise.org
- IDAPA 24.39.70 — state HVAC permit fee schedule ($100 base + $30 first appliance) · proddfmmainsa.blob.core.windows.net
- Idaho Contractor Registration Act (registration for work of $2,000 or more) · legislature.idaho.gov
- Wikipedia: Boise, Idaho (January freeze-thaw normals) · en.wikipedia.org