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 Millbrae
Chimney repair in Millbrae typically runs $295 – $1,850 depending on whether you’re looking at a cap replacement, flashing repair, crown work, or a full rebuild. Most repairs on the Peninsula come down to one thing: water and seismic movement finding their way into joints that were never designed to flex. Flint Chimney Sweep has been repairing chimneys under the same written standard since 2002, and we serve every Millbrae neighborhood from the highlands off Skyline to the flatlands east of El Camino Real. Every job gets a written price before we start, and every repair carries our 365-Day Done Right Promise. Call (830) 251-4560 and a live person answers, day or night.
Why Flint Chimney Sweep Is Millbrae’s Preferred Chimney Repair Company
Hank Delano, who leads Flint Chimney Sweep, built the company around one idea: a homeowner should never have to guess what a repair will cost or whether the work will hold up. That’s why every Millbrae job starts with a written price, not an estimate that changes after we open the roof. We document what we find with a camera inspection and send you the photos. You decide what to fix from evidence, not from a sales pitch.
Millbrae homeowners deal with a specific set of chimney problems that generic chimney companies often misread. The housing stock here is mostly mid-century construction, and the Peninsula shakes. Hairline cracking at the crown, separation where the chimney meets the roofline, and lifted flashing are the three calls we get most often from Millbrae neighborhoods like Mills Estates and the Green Hills area. Our crew has seen enough of these to know the difference between a cosmetic hairline crack and movement that’s letting rain into the attic. The response is quick, but the diagnosis is what matters. We schedule a window, arrive in it, and leave the site cleaner than we found it.
Being part of the Garrison Partners family means every Flint Chimney Sweep job in Millbrae operates under The Garrison Standard. That means background-checked, uniformed technicians. A written guarantee valid for one full year. And a free return visit if a covered repair fails in that year. No argument, no charge.
Chimney Cap Replacement in Millbrae
Chimney Cap Replacement in Millbrae usually costs $390 – $780 for a galvanized or stainless cap sized and fitted to your existing flue tile. A missing or undersized cap is the most common repair issue we see in Millbrae, and it’s the simplest to prevent. Peninsula rain comes sideways off the coastal hills in winter, and without a proper cap, that water drops straight down the flue. Dampers rust. Odors bloom in summer. Birds build in the spring. A correctly fitted cap stops all three.
When a cap is worth replacing now
If you can see daylight through the top of your cap from the ground, or if the mesh sides are dented tight enough to block airflow, the cap isn’t doing its job. In Millbrae’s older ranch homes, we frequently find caps that were installed by the original builder and haven’t been touched since. Flint Chimney Sweep installs Olympia Chimney and Gelco caps sized to the flue, not a one-size-fits-all box from a hardware store.
What a proper cap install involves
We measure the flue opening, check the crown for breakage around the base, and secure the cap with mechanical fasteners, not just friction. Every cap replacement includes a photo report of the finished work. It’s a small repair that stops bigger ones.
Chimney Liner Installation in Millbrae
Chimney Liner Installation in Millbrae runs $1,400 – $2,600 for a stainless flue liner, which includes removing the old clay tile and the labor to drop the new liner through and terminate it properly at the crown. A liner is the pipe that carries smoke and exhaust out of your house. When it’s cracked or built without insulation, heat transfers into nearby framing, and that’s a fire risk. When it’s too large for the appliance it serves, creosote builds faster than it should.
When Millbrae homes need a new liner
Many Millbrae fireplaces were installed in the 1950s and 1960s with terra cotta tile liners that have since cracked from seismic settling. We typically recommend a Level 2 camera inspection to confirm the condition before quoting a liner. The camera tells us exactly what’s going on, and you see the photos the same day. We work with DuraFlex and HeatShield systems because they’re built to hold up to your specific install, not whatever’s cheapest on the shelf.
The HeatShield repair alternative
When the existing tile liner is mostly intact but has a few cracks, HeatShield cerfractory repair can restore it for roughly $900 – $1,300, depending on the flue length. That’s often the right call for a Millbrae homeowner who uses the fireplace a few times a season. We’ll tell you plainly when HeatShield is enough and when a full stainless liner is the only safe option.
Trusted Brands We Service in Millbrae
Flint Chimney Sweep installs and services professional-grade chimney products from HeatShield, Gelco, Olympia Chimney, and Famco. The brand matters because chimneys fail in slow, invisible ways, and the difference between a ten-year liner and a thirty-year liner is usually the material spec. We stock common cap sizes, flashings, and liner components for Millbrae customers, so typical repairs don’t get held up waiting for parts. If we quote a DuraFlex liner on Thursday, we’re usually installing it the following week. Not because that’s what the brochure says, but because the parts are sitting on the truck or in our Bay Area warehouse.
Common Chimney Repair Problems We See in Millbrae Homes
- Crown separation from seismic settling. Millbrae sits close to the San Andreas – adjacent Peninsula fault zone, and the subtle motion over decades pulls the concrete crown away from the flue tile. Water gets into that gap, and what starts as a hairline crack becomes a crown replacement. A Level 2 camera inspection is the only way to spot it early.
- Flashing that lifts at the roofline. The joint where the chimney meets the roof is the first place water finds its way in, and Millbrae’s winter rain exposes it fast. Lifted or corroded flashing reads as a “leaky chimney” when the real problem is the mechanical seal between masonry and roof deck.
- Third-degree creosote glaze in older fireplaces. Millbrae’s mid-century homes were built in an era when wood burning was primary heat. Decades of use leave a hard, glassy creosote layer hidden behind a flue that looks clean from the top. That glaze is a real fire risk and can’t be removed by a standard brushing.
- Missing or undersized caps causing draft and odor complaints. Northern flickers and house sparrows nest readily in uncapped flues around Millbrae’s mature trees. The resulting blockage smells like smoke in July and can force carbon monoxide back into the living space. It’s usually a cap problem, not a liner problem.
Pricing for Chimney Repair in Millbrae, CA
Here’s the honest range for Millbrae. A chimney cap replacement runs $390 – $780. Mortar repointing on a typical Millbrae chimney runs $600 – $1,200. Flashing repair runs $450 – $950. A chimney liner installation runs $1,400 – $2,600, and a full chimney rebuild from the roofline up starts around $3,200 and goes up from there based on height and material access. The biggest swing factor is whether your chimney is on a steep Millbrae hillside lot that needs staging, versus a flat lot off El Camino where a standard ladder reaches. We give you a written price before any work starts, so the number you approve is the number you pay. Call (830) 251-4560 for a free estimate and we’ll schedule a camera inspection to show you exactly what’s going on.
We Also Serve Cities Near Millbrae
Flint Chimney Sweep serves Millbrae and the surrounding Peninsula. If you’re in San Bruno, Burlingame, South San Francisco, or Pacifica, the same Chimney Repair standard applies: written price first, camera evidence, and a one-year written guarantee. Our teams know Chimney Repair in Millbrae and the surrounding blocks well enough to schedule tight windows and arrive on time. The same live-person phone line covers all these cities around the clock.
Serving Millbrae, CA - Our Local Coverage Area
We’re based in the Millbrae 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 Millbrae
No. If you burn fewer than a dozen fires a season, an inspection every other year is typically enough, as long as you’re not seeing water stains on the ceiling near the chimney or smelling damp masonry in the summer. But on the Peninsula, the seismic movement factor changes the math. What matters more than the calendar is whether your chimney has been inspected since the last time you had significant settling or roof work. A Level 2 camera inspection runs about $250 – $400 in Millbrae, and it’s the only way to see crown and flashing separation before it becomes a water damage problem. If your chimney sits on a hillside lot or your house predates 1970, get the camera in there sooner. Call (830) 251-4560 and we’ll walk you through what the camera found, with photos.
For a wood-burning fireplace in Millbrae, sweep the flue after every cord of wood burned, which for most homeowners works out to once a year if you burn regularly through the winter. If you burn occasional fires, every other year is usually fine. The real answer comes from the creosote reading. We sweep and inspect together, and the inspection tells us the creosote is minimal, which means next year’s sweep can wait. A standard sweep in Millbrae runs $180 – $340, and it includes the camera confirmation that the flue is actually clean, not just brushed. Call (830) 251-4560 to schedule, and we’ll give you a written price before we show up.
Yes, with one honest caveat. A chimney sweep and a standard inspection carry flat pricing we can quote over the phone. Repair pricing requires seeing the chimney, because we will not guess over the phone and then move the number after we open the roof. What we do guarantee is this: once we’re on site and have diagnosed the problem, you get a written price before any repair work starts. No work begins without your signature on that number. That’s the discipline behind The Garrison Standard, and it’s why Millbrae homeowners don’t get surprised by our invoices. Call (830) 251-4560 for a free estimate.
Chimney repair addresses a specific defect: a cracked crown, lifted flashing, a deteriorated cap, a damaged liner. A chimney rebuild means the masonry structure itself is no longer sound, and we’re taking it down and rebuilding it from the roofline up. The distinction matters because a repair is a few hundred to low thousands in Millbrae, while a rebuild starts around $3,200 and can run higher on a steep hillside lot. We recently worked a 1950s ranch house off Murchison Drive where the owner booked a sweep and left with a repair plan instead. The camera showed the flue liner was fine, but the crown had separated and the flashing was lifting. We documented it all, sent photos the same day, and replaced the crown and cap while the owner decided on the liner separately. The owner paid for a repair, not a rebuild, because the camera showed exactly what was needed. Call (830) 251-4560 and we’ll help you make the repair-or-rebuild call with evidence, not pressure.
Usually, yes. Summer chimney odor in Millbrae is typically a draft reversal, and the causes are predictable: a missing or undersized cap, a blocked flue, or a liner that’s pulling moisture into the masonry and pushing stale air back down. Sometimes it’s as simple as a cap replacement. Other times it’s a liner that’s oversized for the fireplace, creating a slow, stale draft. The fix starts with a camera inspection to identify the actual source. A cap replacement in Millbrae runs $390 – $780, and if that’s the issue, the smell is gone within days. If it’s the liner, we’ll show you the camera footage and give you a written price before any work begins. Call (830) 251-4560 and we’ll pinpoint it.
Written by Hank Delano, Owner at Flint Chimney Sweep, serving Millbrae since the company’s founding in 2002.