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.
Fast, Reliable Chimney Inspection Across Mill Valley
A chimney inspection in Mill Valley typically costs $189 – $349 for a Level 1 visual check and $349 – $649 when a camera is run through the flue. Most inspections here take about an hour, and we book them within a few days, not weeks. If you live off East Blithedale, up in Sycamore Park, or near downtown off Throckmorton, our crew knows the terrain and arrives in a marked truck with a uniformed technician who hands you a written price before opening the chimney. Call (830) 251-4560 to schedule, and a live person answers around the clock.
Mill Valley homes sit in a high fire-hazard severity zone. City code limits wood-burning, so many chimneys serve gas or pellet inserts rather than open hearths. That changes what an inspection needs to verify: sealed liners, intact caps, and proper venting, not just creosote buildup. Our Chimney Inspection team performs all three NFPA 211 levels and photographs everything we find. You receive the images afterward, so you never have to take our word for it.
Why Flint Chimney Sweep Is Mill Valley’s Preferred Chimney Inspection Company
Hank Delano set the standard here: every inspection at Flint Chimney Sweep includes a written report with photos, a flat price agreed before the truck arrives, and a 365-Day Done Right Promise on any repair we make. When our crew works a Mill Valley home, we know the housing stock. The 1920s-era redwood cottages near downtown often have single-wythe brick flues with no lined chase. The hillside homes built into the ridgelines have different crown and flashing exposures than the flat lots around Corte Madera, and those differences affect what a proper inspection checks.
We are part of the Garrison Partners family, operating under the same Garrison Standard as every location since 2002. Customers in Mill Valley call because they want a straight answer: is the flue safe to burn, what does it cost to fix, and when can it wait. Our technicians answer those questions with a camera, not a guess. Every background-checked, uniformed technician carries professional-grade inspection equipment, and every report uses images from the actual flue, not stock photos.
Response time to Mill Valley is typically two to four business days for a standard inspection. If you are under contract on a house and need a real estate inspection before closing, we prioritize those calls. The dispatch team coordinates from the San Francisco Bay Area office, but the crew that arrives at your door is local to the Mill Valley route and familiar with the tight driveways and steep grades in the area.
Chimney Leak in Mill Valley
A chimney leak in Mill Valley often traces to failed flashing or a cracked crown rather than the flue itself. The wet winters and heavy redwood duff that accumulate on roofs accelerate crown wear, letting water seep down the brick and into the chase. When a homeowner says water is staining the ceiling near the fireplace, our first step is a camera run near the top of the flue, not at the bottom. That tells us whether we are dealing with spalling brick, a flashing seam that has pulled away, or an actual liner breach.
Chimney leak inspection in Mill Valley runs $349 – $649 as a Level 2 camera inspection, depending on flue height and access. That price is written down before we schedule the appointment. If the camera identifies the source and the repair is minor, such as resealing a top plate or replacing a few flashing segments, we quote the repair as a separate line item and do not begin without your written approval.
What a Leak Inspection Covers
We inspect the crown, the flashing at the roofline, the damper assembly, and the full interior liner run. The camera records everything, and you get the video file along with still images marked to show exactly where water is entering. That report is what allows us to say plainly: fix this now, or this can wait a season.
Repair vs. Observation
Not every leak requires immediate work. If the camera shows moisture staining but no active gap and the rainy season has passed, we document it and recommend a re-check in the fall. Mill Valley’s building stock includes many chimneys that have been partially sealed off after gas insert conversions, and a leak in those structures is often the result of an abandoned flue that still carries roof water. We tell you what the camera shows and what the code requires.
Chimney Camera Inspection in Mill Valley
A chimney camera inspection in Mill Valley is what separates a real assessment from a visual guess. We run a cable-mounted camera down the flue from the top or up through the firebox, depending on the chimney configuration. The feed shows us exactly what is inside: flaking first-degree creosote, a cracked tile liner, a warped damper, or a displaced seam in a stainless liner. Every frame is recorded and delivered to you as a photo report before we recommend any work.
Camera inspections in Mill Valley cost $349 – $649 for a standard single-flue home. Older hillside properties with tall chimneys or multiple flues can run higher, but the price is set in writing before we schedule. We recommend a camera inspection for any real estate transaction, any chimney that has not been inspected in three or more years, and any symptom you cannot see the cause of: a smell, a rattle, a slow draft, or water staining.
What We Look For on the Camera Feed
We check for glazed third-degree creosote, which is a fire hazard that a brush alone will not remove. We look for cracks in clay tile liners, separation in metal liner seams, and moisture intrusion at the upper section of the flue. We also confirm that a gas appliance is venting into a properly sized liner, not an oversized flue that lets exhaust cool too fast and condense.
The Photo Report You Keep
After the inspection, you receive every captured image with notes on what each one shows. When we quote a repair, the photos support the line item. No one at Flint Chimney Sweep asks you to approve work you have not seen documented. That is the whole point of running a camera: the flue tells you what it needs, and you can see it for yourself.
Trusted Brands We Service in Mill Valley
We work on chimneys built with every major liner and cap system you are likely to find in Mill Valley homes. That includes DuraFlex stainless liners, HeatShield cementitious resurfacing, Famco caps and dampers, and Copperfield components. When one of these brands fails, we stock common replacement parts locally and can typically source specific components within a few business days rather than waiting on a special order. If your chimney has a HeatShield liner and it is showing age, we can evaluate whether a patch or a full resurfacing makes more sense. You get a straight recommendation from the camera evidence, not a parts catalog.
Common Chimney Inspection Problems We See in Mill Valley Homes
- Sealed-off flues missing a proper cap. Many Mill Valley chimneys were decommissioned when gas inserts went in. If the flue was not capped correctly, rain and redwood duff get in and cause slow deterioration that only shows itself years later. The fix is an inspection plus a properly fitted cap, with the price agreed in writing before the work starts.
- Crown cracks from wet winters. Mill Valley gets enough rain and fog that chimney crowns develop hairline cracks faster than homeowners expect. Those cracks let water into the brick, which freezes on cold nights and widens the gap. A camera run near the top catches it before the flashing fails, which is a much smaller repair than redoing the crown.
- First-degree creosote even in light-use fireplaces. Homeowners who burn only a few cords a year assume the flue is fine. But Mill Valley wood often burns cooler than expected, producing first-degree creosote that clings to the liner walls. Left unaddressed, it becomes second-degree and then third-degree, at which point a simple sweep is no longer sufficient. Still, an inspection that shows first-degree buildup is not a panic situation. A sweep returns the flue to clean, and we tell you honestly how often you really need it.
- Displaced liner seams in older stainless systems. We have enough older homes around Mill Valley that we see DuraFlex liners separating at the expansion joints. A seam that has shifted lets combustion gases bypass the liner and can create a draft problem or a smell in the living space. The repair is a section replacement, not a full reline, and the camera feed shows the gap so there is no guesswork in the quote.
Pricing for Chimney Inspection in Mill Valley, CA
A Level 1 visual chimney inspection in Mill Valley runs $189 – $349. A Level 2 camera inspection runs $349 – $649 for a standard single-flue home. A Level 3 inspection, which involves removing sections of the chimney or wall, is quoted after we see the structure and understand what is hidden behind masonry. Most single-family homes in Mill Valley need a Level 2 when they have not been inspected recently, when a property is changing hands, or when a problem already shows itself. We do not charge extra for the written photo report. The price we quote over the phone is the price on the invoice. Call (830) 251-4560 and we will lock a flat price before the appointment.
We Also Serve Cities Near Mill Valley
Our crews run routes through Corte Madera, Larkspur, Sausalito, and Kentfield weekly, so we know the local building stock and access patterns across the southern Marin corridor. If you are in one of those communities, the same written price, camera report, and one-year guarantee apply. See what a proper Chimney Inspection in Mill Valley looks like, or call (830) 251-4560 to schedule anywhere in our Marin route.
Serving Mill Valley, CA - Our Local Coverage Area
We’re based in the Mill Valley 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 Inspection in Mill Valley
No. If the fireplace has been unused and the damper has stayed closed, an annual inspection is not necessary in Mill Valley. But a one-time Level 2 camera inspection is worth doing before you burn again. Unused flues collect dust, and birds or wasps sometimes build in the flue or around the cap. If the house has a gas insert venting into that chimney, the venting path still needs verification even if no wood is burned. Call (830) 251-4560 and we will tell you whether an inspection makes sense for your setup, based on what is actually venting through the chimney.
You cannot reliably tell by looking. First-degree creosote looks like a dusty black film. Third-degree looks like a hard, shiny glaze, but by the time it is visible from the firebox, the upper flue is often worse than the lower section. The only way to know is a camera inspection that documents the entire liner run. We photograph what is there, tell you the degree, and recommend a sweep or a chemical treatment based on what the camera shows, not what the firebox suggests. For a camera inspection in Mill Valley, call (830) 251-4560.
A Level 1 is a visual check of accessible parts when nothing has changed about the chimney. A Level 2 adds a camera run through the entire flue and is required when a property changes hands, when you switch fuel types, or after a chimney fire or suspected damage. A Level 3 is invasive, involving the removal of masonry or wall sections to see hidden structure. Most Mill Valley homeowners need a Level 2. Older single-wythe brick flues from the 1920s and gas insert conversions both warrant a camera look. Call (830) 251-4560 and we will tell you which level applies to your house before you book.
That is usually a chimney problem, but not always a flue problem. Mill Valley roofs collect redwood duff and sit through sustained wet weather, so flashing seams fail more often than liners do. A camera inspection starting near the top of the flue shows whether the leak is from the flashing, the crown, or an actual liner breach. The fix for flashing or crown work is typically less expensive than a reline, and the photo report gives you the evidence to show a roofer if the issue does turn out to be roof-side. Call (830) 251-4560 to schedule a chimney leak inspection in Mill Valley.
We do not promise same-day service. What we do promise is a written price before we schedule the appointment and a crew that arrives inside the window we give you. If you are under contract on a Mill Valley home and need a real estate inspection before closing, we work with your escrow timeline and prioritize those calls. For standard inspections, expect two to four business days. Call (830) 251-4560 and we will get you on the schedule with a flat price confirmed before the truck rolls.
Written by Hank Delano, Owner at Flint Chimney Sweep, serving Mill Valley and Marin County chimney inspection and repair.





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