Chimney Cap Installation cost · Renton & South King County, WA
$265–$850
What we charge for chimney cap installation.
Elsewhere in South King County it typically runs $149–$349. Market rates observed in South King County (King County, WA), surveyed October 4, 2026 — not our quote.
We charge $265–$850 for chimney cap installation in Renton and South King County. Stainless cap fitted; multi-flue and custom at the top. The exact figure is set in writing after the $99 plus tax inspection, credited toward an approved quote, and you approve it before any work starts.
What the price includes
What we charge for each service. Chimney Cap Installation is highlighted.
| Service | What we charge | Typical South King County price | When you need it |
|---|---|---|---|
| Chimney Sweep | $189–$459 | $70–$350 | Annual maintenance, or you burn regularly and it has been a year |
| Chimney Inspection | $99 plus tax | $121–$855 | Buying or selling a house, after a chimney fire, or before a new appliance |
| Chimney Relining | From $1,900 | no South King County data published | Cracked clay liner, an unlined chimney, or fitting a stove or insert |
| Chimney Repair | From $375 | $111–$3,000 | Cracked bricks, open mortar joints, a leaning or spalling stack |
| Chimney Cap Installation | $265–$850 | $149–$349 | Missing or rusted cap, rain or animals getting into the flue |
| Masonry Repair (Crown / Repointing) | From $425 | $150–$300 | Cracked or crumbling crown, failing mortar joints across the stack |
| Chimney Waterproofing | $320–$795 | no South King County data published | White staining on the brick, or damp showing inside |
| Chimney Flashing Repair | $330–$1,500 | $300–$400 | Water stains on the ceiling around the chimney |
| Gas Fireplace Service | $189–$475 | no South King County data published | Annual service, or the unit will not light or stay lit |
| Creosote Removal | From $245 | no South King County data published | Several seasons since the last sweep, or a hard glaze in the flue |
| Dryer Vent Cleaning | $105–$259 | $129–$199 | Clothes need two cycles, or it has been over a year |
| Air Duct Cleaning | From $535 | $388–$450 | After a renovation, or after water damage |
Market rates observed in South King County (King County, WA), surveyed October 4, 2026 — not our quote. Sources: Chimcare — Chimney Sweep in Snoqualmie, WA, Chimcare — Local Chimney Sweep and Cleaning in Kent, WA, Chimney 360 Services — Chimney Sweep in Maple Valley, Chimney 360 Services — Chimney Sweep in Renton, Chimneyz LLC — Chimney Sweep Kent, WA, Homeyou — Air Duct Cleaning in Renton, WA costs, Homeyou — Chimney Repair in Maple Valley, WA costs, Homeyou — Chimney Repair in Renton, WA costs, Homeyou — Chimney Repair in Snoqualmie, WA costs, Homeyou — Chimney Sweeping in Renton, WA costs, Homeyou — Fireplace Repair in Renton, WA costs.
Published by others — not our quote
Figures published by other companies and cost guides, local first, national for context. Not our quote.
$149–$349 per cap
Renton/Southeast King · Not our quote
Maple Valley page price list, 'Chimney Cap Installation' line (the bounds of this row, up to $349). No date on page.
$300–$600 per flue
US national · Not our quote
National range, average $425; prefab cap $300–$650 installed. Update date not captured on this read.
Every figure below is published by a third party. Not our quote.
A typical job, at our prices
A job at the bottom of our listed price for chimney cap installation — yours is set in writing after the inspection.
| Step | Cost |
|---|---|
| On-site inspectionPaid at the visit, credited toward the quote once you approve it | $99 |
| The chimney cap installation itselfBalance due after the inspection credit | $166 |
The total came to $265 before sales tax — our listed starting price for chimney cap installation, with the inspection counted inside it, not on top.
Published figures, not our quote: Chimney 360 Services — Chimney Sweep in Maple Valley: $149–$349 per cap (Renton/Southeast King, accessed 2026-10-04); Fixr — Chimney Cap Replacement Cost: $300–$600 per flue (US national, accessed 2026-10-04). Not our quote — what we charge is shown at the top of this page.
Where a spark arrestor (R1003.9.2) or a rain cap (R1003.9.3) is installed on a masonry chimney, its net free area must be at least four times the net free area of the flue outlet it serves.
Common questions
The exact price for your chimney is set on site, in writing, after the $99 plus tax inspection. Our FAQ covers booking, the inspection and where we work.
Book your inspection — $99 plus tax on-site inspection, credited toward an approved quote.
Book an inspection
Book your $99 inspection
$99 plus tax, deducted when you approve the repair
