Sweep & inspection
Caps & crowns
Flue relining
Masonry repair
Gas fireplace serviceLevel 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.
Chimney Company in Potrero Hill, CA
Chimney repair in Potrero Hill usually means working on a 100-year-old brick flue that hasn’t been relined since the Nixon administration. We’re Chimney Sweep Bernal Heights, and we’ve served Potrero Hill since 2016. Most of our calls here start as a sweep and turn into something more: spalled brick crowns, cracked flue tiles, rusted-out dampers, flashing that’s pulling away from the roof. The fog does real damage to masonry over time, and the hillside Victorians take the worst of it. Call (844) 745-4668 if you suspect yours is one of them.
Why Potrero Hill Homes Are Different
Potrero Hill’s housing stock runs from the 1870s through the 1920s, mostly Victorian and Edwardian row houses and cottages built before modern flue liners existed. That means original brick chimneys with clay tile liners, if any liner at all. The persistent fog and damp air off the bay seeps into mortar joints and accelerates spalling (that’s when brick faces pop loose) and crown cracking. Chimneys here are used less for heating than in, say, Bernal Heights or Noe Valley, but intermittent use creates its own problem: creosote builds up in layers during occasional fires, then hardens when the fireplace sits cold for months. What’s really distinctive about Potrero Hill is the number of capped, abandoned chimneys we find. These came from old coal or wood stoves in Victorian homes. The flue was sealed at the bottom decades ago, but the top was never properly closed off. Water gets in through the cap seam, runs down the inside, and quietly rots the mortar from within. Nobody sees it until a sweep pulls off the cap and finds a crumbling mess. Add the steep, narrow streets and staircase-only access on some blocks, and you have a job that requires planning, the right equipment, and patience. That’s what we do.
Styles & brands we work with
- Sweep & inspection
- Caps & crowns
- Flue relining
- Masonry repair
- Gas fireplace service
Our Main Potrero Hill Services
Two services drive most of our Potrero Hill calls: chimney sweeping for the old fireplaces that still work, and dryer vent cleaning for the laundry hookups in these tight older homes.
Chimney Sweep in Potrero Hill
A sweep in Potrero Hill usually starts with a roof inspection of the crown, cap, and flashing before we ever touch the flue. Those old brick chimneys take a beating from fog and gravity. We see cracked crowns and loose mortar joints on nearly every block, and the sweep is often how those problems get caught early. When we clean the flue, we’re also looking for hidden damage behind years of creosote – especially in chimneys that only get used a few times a winter. For the full breakdown of what a sweep covers, see Chimney Sweep in Potrero Hill.
Dryer Vent Cleaning in Potrero Hill
Potrero Hill’s row houses often have long, awkward dryer vent runs that snake through walls or terminate at a second-story roofline, which is exactly where lint builds up fastest. A clogged dryer vent is a leading cause of house fires, and the older the home, the more likely the vent was never properly sized or routed. We clean the full run from dryer to termination and check the exterior cap, plenty of which are original and barely functional. Learn more at Dryer Vent Cleaning in Potrero Hill.
Chimney Repair in Potrero Hill
Chimney repair in Potrero Hill is a masonry job as much as a ventilation job. The neighborhood’s 19th- and early-20th-century brick chimneys have spent 100-plus years absorbing fog moisture, and the result is predictable: spalling mortar, cracked flue tiles, and crowns that look like a dropped cookie. What concerns us most is the abandoned chimney pattern – a sealed-off flue from an old coal stove whose top is still open to the rain. A homeowner won’t know anything’s wrong until water stains appear on an interior wall or a neighbor mentions loose bricks on the roof. That’s exactly the kind of damage a thorough inspection catches before it becomes structural. Our Chimney Repair work covers the full range, from cap replacement to full relining, and we can usually handle what the inspection uncovers without bringing in a second contractor.
Chimney Cap Installation
Signs you need it
Missing, rusted, or animal-dug-in cap is a sign that rain, birds, and debris are getting straight down your flue.
What it costs in Potrero Hill
Chimney cap installation in Potrero Hill typically runs $220 to $450, depending on the flue size and whether you go standard galvanized or stainless steel.
How we do it
We measure the flue’s inner and outer dimensions, custom-fit the cap (we carry Famco and Copperfield caps on the truck), secure it to the flue tile with tap screws and a bead of high-temp silicone, and verify the mesh screening won’t restrict draft.
Chimney Cap Replacement
Signs you need it
A cap with rusted-through seams, missing sections, or visible animal nesting around it has failed and needs replacing, not straightening.
What it costs in Potrero Hill
Cap replacement in Potrero Hill typically costs $240 to $480, including removal of the old cap and disposal.
How we do it
We pull the old cap, wire-brush the flue tile rim, check for damage beneath the old caulk line, then seat and secure the replacement cap and confirm the draft is unobstructed.
Chimney Liner Installation
Signs you need it
Cracked flue tiles, smoke spilling into the room, or a sweep that reveals gaps in the clay liner mean the flue can’t safely vent exhaust.
What it costs in Potrero Hill
Chimney liner installation in Potrero Hill typically runs $2,800 to $6,400 for a DuraFlex stainless flex liner sized and insulated to your flue.
How we do it
After measuring the flue’s exact length and offset, we run a DuraFlex liner from throat to crown, insulate the annulus, connect it to the appliance or fireplace, and seal the top with a proper cap and storm collar.
Chimney Flashing Repair
Signs you need it
Water stains on the ceiling around the chimney, curling or lifting flashing, or visible gaps where flashing meets the brick are all signs of a leak.
What it costs in Potrero Hill
Chimney flashing repair in Potrero Hill typically falls between $350 and $800, more if the step flashing is so far gone it needs full replacement.
How we do it
We remove the old sealant and damaged flashing sections, cut and bend new flashing to fit the existing brick profile, secure it with the right fasteners, and seal the transition with high-grade roof sealant.
What Chimney Repair Costs in Potrero Hill
| Item | Typical range in Potrero Hill |
|---|---|
| Chimney cap installation | $220 – $450 |
| Chimney cap replacement | $240 – $480 |
| Chimney liner installation (DuraFlex) | $2,800 – $6,400 |
| Chimney flashing repair | $350 – $800 |
| Chimney crown repair | $300 – $700 |
Does chimney repair require a permit in Potrero Hill?
In San Francisco, chimney repairs generally fall under routine maintenance and don’t need a permit, but any structural alteration or height change to a chimney does. If we find something that crosses that line, we’ll tell you before the work starts. The answer that matters is: we’ll never do unpermitted structural work.
How long does chimney repair take in Potrero Hill?
Cap installation or replacement is a same-visit job, usually 90 minutes to two hours. Flashing repair runs two to three hours. A full liner rebuild with scaffolding and access challenges – common on Potrero Hill’s sloped lots – can take two full days. Your quote will include a finish date before we start. Call (844) 745-4668 for specifics.
Brands We Service in Potrero Hill
We’re upfront about what we install. Our trucks carry Famco and Copperfield caps, and we stock DuraFlex liner kits for older offset flues. If a liner is cracked but structurally intact, we use HeatShield ceramic resurfacing instead of a full rebuild, which often saves Potrero Hill homeowners thousands. See our brands for the full material list.
See the difference
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AfterPricing for Chimney Company in Potrero Hill, CA
| Service | Typical range in Potrero Hill |
|---|---|
| Chimney cap installation | $220 – $450 |
| Chimney cap replacement | $240 – $480 |
| Chimney liner installation (DuraFlex) | $2,800 – $6,400 |
| Chimney flashing repair | $350 – $800 |
| Chimney crown repair | $300 – $700 |
| Chimney sweep (standard) | $180 – $340 |
| Chimney inspection (Level 1) | $150 – $300 |
| Dryer vent cleaning | $130 – $260 |
Steep roof access and staircase-only approaches push prices toward the upper end in Potrero Hill, because they add setup time and a second technician on safety watch. What doesn’t change is our pricing: we quote a flat price before the job starts and we stick to it. No hourly billing, no add-ons you didn’t approve.
Neighborhoods We Serve in Potrero Hill
We cover all of Potrero Hill from the flats up the hill and everywhere in between. Response time for most inspections and sweeps is within a few days, and we group appointments by area during peak season to keep things moving quickly.
- North Slope and 18th Street corridor
- South Potrero Hill near 23rd and 24th Streets
- Potrero Flats toward Mission Bay
- The 100-year-old blocks around Potrero Avenue and 22nd Street
- Design District edge and Showplace Square
Service Area – Cities Near Potrero Hill
We book chimney and dryer vent work throughout San Francisco’s eastern neighborhoods. If you’re across the hill or down the freeway, we likely cover you too. Our main hub is Bernal Heights, CA, and we regularly work in Civic Center, CA, Diamond Heights, CA, and Noe Valley, CA. Same trucks, same flat pricing, same named-brand materials.
Serving Potrero Hill, CA – Our Local Coverage Area
We’re based in the Potrero Hill 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 Company in Potrero Hill
Potrero Hill has its share of HOAs, and they usually want proof of insurance and a written work order before they’ll sign off on chimney or roof-access work. We provide both on request at no extra charge. If your building is in a historic district with masonry restrictions, tell us when you book, and we’ll keep the repair scope within the usual approved parameters.
Yes. Potrero Hill’s steep streets and rear-yard stairways mean some chimneys can’t be reached from a normal ladder setup. We carry sectional ladders, roof-ridge ladders, and fall-protection gear sized for exactly those approaches. If your roof access requires a scaffold or a lift, we’ll factor that into the quote before we start, not as a surprise line item.
For a standard sweep or dryer vent cleaning, we can usually get you on the schedule within a few days to two weeks. Repair work that involves liner installation or masonry restoration takes longer to schedule, so if you know your chimney needs work before winter, call (844) 745-4668 in early fall. Spring and early summer are the fastest seasons to book.
If your Potrero Hill chimney hasn’t been looked at in years, or you’ve spotted a cap that’s rusted through or a water stain near the fireplace, we’ll come out and tell you exactly what’s going on. Call (844) 745-4668 for a free estimate, and we’ll schedule the work around the hillside, the fog, and your schedule.
What happens when you call
- 1A real person answersNo phone trees. Talk to a local chimney cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you. The visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Potrero Hill Customers Say
"Creosote buildup was worse than I realized. He measured it, showed me the glazing on the flue with the camera, and was honest that we were closer to a chimney fire than I wanted to hear."
- Kevin Park"Cap keeps the birds out now, which after two springs of scratching noises is worth every penny."
- Eduardo Vargas"What sold me was that he told me what NOT to do. I was ready to spend a lot more than I needed to and he stopped me. Ended up costing about a third of what I'd budgeted."
- Rana Karam