Fast, Reliable Chimney Cap & Crown Across SeaTac
Chimney cap and crown repair in SeaTac typically runs $280-$650 depending on whether you need a simple cap swap or full crown rebuild, and our technicians complete most jobs in a single visit. We answer calls with a live person 24 hours a day at (844) 803-1545, and we carry the professional-grade materials to fix what we find without making you wait on parts.
SeaTac’s older ranch homes and split-levels along the eastern corridors were built fast in the 1950s through 1970s for airport and Boeing workers, and their masonry chimneys have sat through forty years of marine moisture with minimal upkeep. That combination - original construction, persistent damp, and decades of deferred maintenance - is exactly what wears out caps and crowns faster here than in drier markets east of the Cascades. We’ve been serving homes in the 98158 ZIP and surrounding SeaTac neighborhoods since 1984, and we know the difference between a crown that needs coating and one that needs rebuilding because we’ve inspected thousands of them with our Level-2 camera systems.
Why Hearthstone Chimney Co. Is SeaTac’s Preferred Chimney Cap & Crown Company
Our reputation in SeaTac was built one chimney at a time, mostly through neighbors telling neighbors after we solved a draft problem or stopped a leak they had lived with for years. Homeowners in the McMicken Heights and Angle Lake areas call us back because we document every inspection with photos they can see and a plain-English verdict they can understand - no technical jargon, no pressure to buy.
Response time matters when water is coming through your ceiling. From our dispatch, we typically reach SeaTac homes within 45 minutes to an hour, and we schedule cap and crown work with arrival windows we actually keep. We’ll be there when we say.
Here’s what sets us apart in this market: our technicians are background-checked, uniformed, and trained to recognize the unique negative-pressure conditions that affect SeaTac’s soundproofed homes near the airport corridors. That local knowledge prevents misdiagnoses that waste your money and leave the real problem unfixed. Every job is backed by our 90-Day Done Right Promise - in writing, no arguing.
Our Chimney Cap & Crown Services in SeaTac
Cap Installation
New cap installation in SeaTac runs $180-$320 for a standard single-flue galvanized or stainless unit, with multi-flue and custom configurations running higher. We measure on-site because chimney flue dimensions on these 1960s ranch homes vary more than you’d expect, and an ill-fitting cap is worse than no cap at all. Our Chimney Cap & Crown team stocks Famco and Copperfield caps in common SeaTac sizes for same-day installation.

Cap Replacement
Most SeaTac homeowners don’t notice their cap has failed until they see rust streaks on the brick or hear animals in the flue. Replacement is straightforward when the flue tile is intact - we remove the corroded unit, inspect the flue opening for spalling or cracking, and install a properly sized replacement with secure mounting that won’t blow off in the winter windstorms off Puget Sound. Typical replacement cost in SeaTac: $220-$380.

Crown Repair
The concrete crown at the top of your chimney is what keeps rainwater from saturating the masonry below. In SeaTac’s climate - 38 inches of annual rainfall under persistent marine overcast - crowns deteriorate faster than almost anywhere we work. Hairline cracks become saturated every morning, freeze slightly on the coldest winter nights, and widen year by year. We repair structurally sound crowns with professional-grade crown coating materials, rebuilding the slope and waterproofing the surface so water runs off instead of in.

Crown Coating
For crowns with surface deterioration but solid structural integrity, crown coating is the cost-effective alternative to full rebuild. In SeaTac, where moss colonization and mortar erosion are constant threats, a properly applied coating using HeatShield or similar professional-grade material adds 10-15 years of service life. We apply it only after thorough cleaning and crack chasing - no shortcuts that would trap moisture underneath. A square deal: no surprises on the bill.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in SeaTac
We don’t use builder-grade substitutes that fail in two seasons. Our trucks carry professional-grade materials from DuraFlex, HeatShield, Gelco, and Copperfield - brands that hold up to SeaTac’s wet winters and the temperature cycling from occasional cold snaps. Because we stock common cap sizes and crown coating supplies locally, most SeaTac customers get same-day completion without waiting on special orders. If your chimney needs more extensive work, we also handle Chimney Liner & Rebuild in SeaTac using the same professional standards and materials.
Common Chimney Cap & Crown Problems We See in SeaTac Homes
- Spalled and crumbling crowns on 1960s-1970s split-levels. The original crowns on these homes were often poured with too little cement and no reinforcing mesh. After fifty years of marine moisture cycling, they’re powdering at the edges and funneling water straight into the chimney structure.
- Rust-eaten galvanized caps in homes near Angle Lake. The persistent damp here corrodes standard galvanized caps in 7-10 years, half the lifespan you’d see in drier climates. We upgrade to stainless or copper where the budget allows.
- Missing or improperly mounted caps blown off in winter wind events. SeaTac sits exposed to southeasterly winds coming off Puget Sound, and caps mounted with inadequate fasteners or wrong sizing end up in someone’s yard. We use through-bolt or masonry-anchor mounting, never friction-fit alone.
- Negative-pressure backdrafting in soundproofed homes near airport corridors. The Port of Seattle’s mandatory noise mitigation program created tight building envelopes that reverse natural draft. We routinely find that simply opening the damper pulls cold air and occasional smoke back into living spaces - a problem that must be diagnosed before any cap or crown work, because a perfectly sealed chimney top can make backdrafting worse if combustion air isn’t addressed.
Pricing for Chimney Cap & Crown in SeaTac, WA
Here’s what cap and crown work costs in the SeaTac market, based on jobs we’ve completed in the 98158 ZIP and surrounding neighborhoods:
| Service | Typical Range in SeaTac |
|---|---|
| Standard cap installation | $180 - $320 |
| Cap replacement (single flue) | $220 - $380 |
| Multi-flue cap installation | $340 - $550 |
| Crown coating (surface repair) | $280 - $450 |
| Partial crown rebuild | $450 - $650 |
| Full crown removal and pour | $680 - $1,100 |
What moves you within these ranges: accessibility (steep roof pitch or limited ladder access adds time), extent of hidden water damage revealed after we open the work area, and whether your flue needs simultaneous attention. We provide no-hassle upfront pricing before any work begins - the number on the estimate is the number on the invoice. Call (844) 803-1545 for a free estimate; we’ll measure, photograph, and explain what we found with no pressure to schedule.
We Also Serve Cities Near SeaTac
Our technicians regularly work in SeaTac and the surrounding communities - Normandy Park to the west, Tukwila to the north along International Boulevard, Boulevard Park along the Duwamish River corridor, and Riverton to the northeast. If you’re unsure whether your address falls in our service area, call and we’ll confirm. For routine maintenance that helps prevent the cap and crown problems we described, we also offer Chimney Cleaning & Sweep in SeaTac with our $89 Seasonal Tune-Up.
Serving SeaTac, WA - Our Local Coverage Area
We’re based in the SeaTac area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Chimney Cap & Crown in SeaTac
We typically arrive at SeaTac homes within 45 minutes to an hour of your call, and we schedule most cap and crown repairs within 24-48 hours. If water is actively entering your home through a failed crown, we prioritize emergency calls and can often same-day a temporary seal until permanent repair weather permits. Call (844) 803-1545 - a live person answers 24 hours a day, every day.
Yes, we service the full 98158 ZIP and surrounding SeaTac areas, including the soundproofed homes in the airport corridor neighborhoods and the eastern ranch-home subdivisions near McMicken Heights. Our technicians understand the distinct chimney problems each area presents - from negative-pressure backdrafting in tight-envelope retrofits to straightforward moisture damage on older, unmodified homes.
Yes, we take emergency calls for active water intrusion, animal entry, or storm damage to caps and crowns. A live person answers our phone 24/7, and we can often apply temporary weatherproofing same-day while scheduling permanent repair. The 90-Day Done Right Promise applies to emergency work exactly as it does to scheduled jobs - in writing, no arguing.
Our pricing is consistent across the metro area, though SeaTac’s specific conditions - persistent moisture, moss growth, and the tight-building-envelope issues near the airport - sometimes reveal hidden damage that adds scope. A standard cap replacement in SeaTac costs the same as in Tukwila or Normandy Park; the difference is what we find once we’re on your roof. That’s why we provide upfront pricing after inspection, not vague estimates over the phone.
Every cap and crown job is covered by our 90-Day Done Right Promise - if it’s not right, we come back and make it right, backed in writing with no paperwork and no arguing. Beyond that, manufacturer warranties apply to the professional-grade materials we install: Famco and Copperfield caps carry their own product warranties, and HeatShield crown coatings are backed by the manufacturer’s system guarantee when applied to spec. We’re a company that’s been in this region since 1984, and we plan to be here in thirty more years - we don’t dodge warranty calls.
Ready to stop the leak, fix the draft, or keep animals out of your flue? Call Hearthstone Chimney Co. at (844) 803-1545 for a free estimate on chimney cap and crown work in SeaTac. We’ll inspect, photograph, and explain what we found - and we’ll stand behind the repair with our 90-Day Done Right Promise, in writing, no arguing. Done right, and we stand behind it.
Written by Russell Haines, Owner at Hearthstone Chimney Co., serving SeaTac since 1984.