Level 1 sweep and inspection to the NFPA 211 annual standard - flue, crown, cap, and flashing checked and photographed
Chimney sweep logs do not sweep chimneys. They loosen some creosote - which then falls where a brush and vacuum still have to collect it.
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AfterFast, Reliable Chimney Repair Across SeaTac
Chimney repair in SeaTac typically costs between $285 and $4,800 depending on what the inspection finds. A chimney cap replacement usually runs $340 to $690, while a full flue relining with DuraFlex stainless lands between $2,900 and $4,800. Those are real numbers from jobs we have done in SeaTac, and you will get your written number before any work starts. Flint Chimney Sweep has been handling chimney repairs since 2002, and our SeaTac crews know exactly what the older ramblers west of International Blvd and the newer townhomes near Angle Lake throw at a chimney. Call (830) 251-4560 and we will schedule your inspection.
Why Flint Chimney Sweep Is SeaTac’s Preferred Chimney Repair Company
SeaTac homeowners tend to find us after a cleaning company quoted one price on the phone and another at the door. We do not operate that way. Every repair job gets a written quote before tools come off the truck, and that quote is what you approve. The invoice matches it. No exceptions. We are part of the Garrison Partners family of independently owned chimney companies, founded in 2002, and every Flint crew works under The Garrison Standard: background-checked, uniformed technicians, honest pricing, and a written guarantee on every repair.
Our dispatchers live-answer the phone 24 hours a day, so when you call about a chimney leak near Angle Lake or a damaged cap off South 154th Street, a person picks up. Not a voicemail tree. Scheduling is handled from our Seattle office, but the crews that come to SeaTac are familiar with the housing stock here. They know a 1950s rambler west of International Blvd has a different chimney anatomy than a 2000s townhome near the airport.
Chimney Cap Installation in SeaTac
Chimney cap installation in SeaTac runs $340 to $690 including the cap itself and the labor to set it properly on the flue. The cap is the metal roof that sits over the flue opening. It does three jobs: keeps rain out of the flue, keeps birds and squirrels from nesting inside, and blocks wind from pushing smoke back into the house on days when the wind comes off Puget Sound just wrong. A cap is the cheapest repair you can make that prevents multiple bigger ones.
What the Installation Involves
We measure the flue opening, match the cap size to what is actually there, and secure it so it does not rattle in a SeaTac windstorm. If the flue tile has a crack or spall at the top, we address that before setting the cap so the anchor has something solid to grab. We stock caps from Gelco and Olympia Chimney, and we carry common sizes on the truck so most SeaTac jobs are done in one visit.
When a SeaTac Homeowner Needs One
If you can see daylight through a missing or rusted cap, or if you hear birds in the chimney, the repair is overdue. Uncapped flues in SeaTac’s wet season pull rain straight into the firebox, and rust follows. A $400 cap now beats a $3,000 reline in two years.
Chimney Cap Replacement in SeaTac
Chimney cap replacement in SeaTac costs the same range as installation, $340 to $690, and the deciding factor is usually what the old cap was made of. Galvanized steel caps rust through in roughly five to eight years in this climate because of the combination of rain and salt air off Puget Sound. Stainless caps from Gelco or Olympia Chimney last significantly longer, which is why we stock stainless as our standard.
Signs the Cap Has Failed
Rust streaks down the brick below the cap, water pooling in the firebox after rain, or a cap that has come loose and shifted off-center all point to replacement. A shifted cap sometimes means the flue tile beneath it is also moving, so we check both before quoting a replacement.
What Replacement Covers
We remove the old cap, inspect the top course of flue tile, and set the new cap with hardware sized for the flue opening. If the old cap was the wrong size (common on factory-built metal flues where a universal cap was forced on), we order the correct one and come back to install it. The written quote includes the return trip, so you know the full cost before the first visit ends.
Trusted Brands We Service in SeaTac
Flint Chimney Sweep works with professional-grade materials from HeatShield, Gelco, Olympia Chimney, and Famco, and we specify the product by the job rather than by margin. That means a liner resurfacing in an older Angle Lake rambler gets HeatShield cerfractory sealant applied to the existing clay tile, while a full reline in a factory-built metal chimney gets a DuraFlex stainless liner sized to the manufacturer’s clearance requirements. We keep common parts on our trucks, so a cap replacement or minor flashing repair in SeaTac usually does not require a second visit. When a specialized liner section or manufacturer-specific component is needed, we have it ordered and a return trip scheduled before we leave your house.
Common Chimney Repair Problems We See in SeaTac Homes
- Cracked and spalled clay tile liners in older ramblers. Homes built in the 1940s through 1960s west of International Blvd often still have their original clay flue tiles. Years of wet-freeze cycles from SeaTac’s damp winters cause the tiles to crack and flake, which is exactly what the white staining on exterior brick below the roofline usually indicates. A camera inspection is the only way to see the damage, because it lives inside the flue where a flashlight from the firebox cannot reach.
- Rusted and displaced chimney caps. The rain off Puget Sound gets under galvanized caps and rots them from the inside seam outward. Once the cap shifts or rusts through, water enters the flue directly and accelerates damage to the liner below.
- Third-degree creosote tar glaze in wood-burning flues. Alder burns hot and fast, which is why SeaTac homeowners who use it as their main firewood end up with thick, tar-like creosote that cannot be brushed out. Trying to sweep it anyway leaves the flue coated and turns a repairable situation into a full reline.
- Incorrect parts on factory-built metal chimneys. The newer townhomes and multifamily buildings near Angle Lake and International Blvd have manufactured chimney systems with specific clearances and parts. We regularly see universal caps and generic brushes fitted to these systems where manufacturer-specific components belong. That is not a harmless shortcut; it voids the manufacturer’s listing and creates clearance risks.
Pricing for Chimney Repair in SeaTac, WA
A chimney cap installation or replacement in SeaTac runs $340 to $690. Mortar repointing on a chimney crown or shoulder typically costs $600 to $1,800 depending on how many courses of brick need work. Flashing repair around the roofline lands between $500 and $1,400. A HeatShield flue resurfacing job runs $1,800 to $3,200, and a full DuraFlex stainless reline is $2,900 to $4,800. The variables are access (roof pitch and height), the amount of deteriorated masonry, and whether the flue needs resurfacing or full replacement. You get a written price before any work begins, and that price includes the materials specified for your chimney, not whatever is cheapest on the shelf. Call (830) 251-4560 for a free estimate; the inspection that produces your written quote is included.
We Also Serve Cities Near SeaTac
Flint Chimney Sweep handles Chimney Repair for homeowners across SeaTac and the surrounding region. Our crews regularly work in Seattle, Spokane, Tacoma, and Vancouver, so if you have a rental property or a family member in one of those cities, the same written-price standard applies. Dispatch runs through our Seattle office, and scheduling works the same way everywhere we go.
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 About Chimney Repair in SeaTac
Once a year, no matter how often you burn. SeaTac’s damp climate accelerates masonry deterioration, and a hairline crack in a clay liner can become a spalled section in one winter. The annual inspection combined with a sweep is the point, because the sweep is when our technician puts a camera up the flue and actually sees what is happening inside. If you burn more than two cords a season, we recommend a mid-season check as well. Call (830) 251-4560 to schedule, and you will get a written report with photos from the camera, not a verbal summary you have to trust.
A Level 1 inspection is a visual check of the accessible parts of the chimney during a routine sweep; it is what most SeaTac homeowners get when nothing has changed and the appliance is being used the same way as before. A Level 2 inspection adds a camera scan of the flue interior and access to the attic, crawlspace, and roof, and it is required if you have had a chimney fire, changed fuel type, or bought the house and have no record of prior inspection. A Level 3 inspection involves some demolition to access concealed areas of the chimney, and it is only called for when a Level 2 camera scan reveals a problem that cannot be seen without opening the structure. Most SeaTac repairs we do are found on Level 2 scans; the camera sees what the eye cannot.
No. Third-degree creosote is a hardened tar glaze that has bonded to the flue lining, and a brush will not remove it. Attempting to sweep it anyway leaves the coating intact and gives you a false sense that the chimney is clean. The fix for tar glaze in a SeaTac chimney is either a professional chemical treatment followed by mechanical removal where the liner is still intact, or a resurfacing with HeatShield or a full reline where the liner has been compromised. The camera inspection tells us which one applies. Call (830) 251-4560 for an inspection and we will show you exactly what the flue looks like before recommending anything.
Yes. Factory-built metal chimneys, the kind common in the newer townhomes near Angle Lake and along International Blvd, are a significant part of our repair work in SeaTac. These systems have manufacturer-specific clearances, components, and parts, and we service them according to the manufacturer’s listing rather than treating them like masonry flues. That includes installing the correct cap, replacing damaged flue sections, and applying HeatShield to address internal corrosion where the manufacturer approves it. If a previous company fitted a universal cap or off-brand parts to your metal chimney, we can inspect what is there and quote a correction.
We offer scheduled repair appointments in SeaTac, not same-day dispatch. A repair that starts with a proper inspection and a written quote cannot be rushed into a same-day slot, and we will not cut that corner. What we do offer is a live person answering the phone 24 hours a day, so you can call at 9 a.m. on a Tuesday and know exactly when a technician will arrive, what the inspection covers, and when you will have your written repair quote in hand. For cap replacements and minor flashing repairs where we have the parts on the truck, the repair often gets done the same day as the inspection. Call (830) 251-4560 to get on the schedule.
Local Knowledge That Changes the Repair
SeaTac’s housing stock splits sharply by distance from the airport. The older 1940s through 1960s ramblers west of International Blvd were built with masonry fireplaces and original clay tile flue liners, while the newer multifamily and townhome rows near Angle Lake often have factory-built metal chimneys with little or no masonry at all. So whether a repair call needs a HeatShield flue liner resurfacing or a DuraFlex stainless reline gets decided by address, not by symptom. A homeowner on one side of the city calls in with the same white staining on brick, and the fix is a crown rebuild. A homeowner on the other side calls with the same visual, and the fix is a cap and flue section replacement on a metal system. That is why we do not quote repairs over the phone sight-unseen, and it is why a camera inspection is part of every repair estimate. You get the diagnosis in writing, with photos, before anything is recommended.
We got called out to a 1954 rambler off South 154th Street near Angle Lake where the homeowner had been burning alder for years and noticed white staining on the exterior brick below the roofline. Our tech ran a Level 2 inspection, put a camera up the flue, and found spalling on the chimney crown alongside second-degree creosote flaking off the original clay liner. We resurfaced the flue with HeatShield, rebuilt the crown, and set a new stainless cap on the flue while the firebox and damper were cleaned and checked. The written quote covered all of it before any work started, and the homeowner approved exactly what was on the page. That is how we operate in SeaTac, on every job.
Every repair we do in SeaTac carries the 365-Day Done Right Promise: a written guarantee valid for one full year from the service date. If a covered repair fails within that year, we return at no charge. No argument, no re-inspection fee, no fine print. That guarantee, the written price before work starts, and the camera-report on every inspection are what our reputation in SeaTac is built on. Call (830) 251-4560 to schedule your inspection, and you will get a straight answer on what the chimney actually needs, in writing.
Written by Hank Delano, Owner at Flint Chimney Sweep, serving SeaTac since 2002.