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.
Fast, Reliable Chimney Sweep Across Newark
A chimney sweep in Newark, CA typically runs between $189 and $329 for a standard masonry fireplace cleaning with a Level 1 inspection included. That’s the range we quote most often for Newark homes, depending on creosote volume, roof access, and whether the flue has been cleaned in the past two years. We’ve been cleaning chimneys since 2002, and we know the east-side salt air problem better than any crew driving in from Fremont or Hayward. Call (669) 266-5073 and we’ll give you a written price before we touch anything.
Newark has a specific set of chimney problems. It’s not the same as Sunnyvale or Palo Alto. It’s the bay, the fog, and a housing stock that hit its stride in the 1960s and 70s. That combination means chimneys here corrode faster, crack sooner, and build creosote differently than they do five miles inland. If you live off Cherry Street or near the NewPark Mall area, you’ve probably noticed rust streaks on your chimney cap already. That’s salt. We’ll get into exactly what it does and what it costs to address.
Why Ashby Chimney San Jose Is Newark’s Preferred Chimney Sweep Company
Nathan Corliss leads our Chimney Sweep crew, and he’s particular about two things: the price you’re quoted is the price you pay, and if a repair fails inside the guarantee period, we come back and fix it at no charge. That’s the 365-Day Done Right Promise, and it’s written into every job we do in Newark. No fine print hiding a callback fee. No “that’s a different repair” conversation. If we fixed it and it failed, it’s on us.
Newark homeowners have told us the same story enough times that we built our process around it: a tech doesn’t show, a price doubles at the door, or a liner cracks six weeks after it was installed. We answer the phone with a live person, 24/7. We background-check and uniform every technician who walks into your home. And we write the guarantee on paper before we leave, not in an email three days later. Our Newark customers call back for the next sweep because the first one happened exactly as we said it would.
We schedule Newark jobs from our Bay Area office and dispatch a local crew, so the team that shows up knows the difference between a Newark tract home chimney and a custom build in the hills above Union City. That matters when you’re diagnosing cracked flue tiles behind a 1972 firebox. Everything we recommend is backed by camera photos you can see yourself. If a liner can wait, we’ll tell you it can wait. If a cap has rusted through, you’ll see the hole before we quote the replacement.
Written price before any work starts. Written guarantee on every repair. Free second visit if a covered repair fails inside the guarantee period. And the price includes a camera inspection with a photo report, not a separate line item. That’s how we do every Chimney Sweep in Newark job, whether it’s a standard sweep or a full flue rebuild.
Styles & brands we work with





Chimney Sweep Certified in Newark
Chimney Sweep Certified work in Newark means we’re brushing out creosote, soot, and salt-crusted debris from flues, then running a camera up to document what’s left behind. This is not a quick once-over with a shop vac. Most Newark chimney sweeps run $189 to $329, and that includes the sweep, the Level 1 inspection, and the written report. If we find glazed creosote, cracked tiles, or a rusted damper, you get photos and a written recommendation, not a vague warning and a high-pressure follow-up call.
Standard Sweep and Level 1 Inspection
The routine job. We brush the full flue, clean the smoke chamber and firebox, remove debris from the smoke shelf, and check the damper, cap, and visible masonry from the roof. In Newark, we pay extra attention to the cap and flashing because salt air eats galvanized steel quickly. The Level 1 inspection is the pass/fail: if everything looks sound, you burn another season. If we find something, you see the photo and get a written quote.
Creosote and Soot Removal
Newark’s damp, foggy winters do something unpleasant to creosote: moisture condenses in the flue and mixes with first-degree creosote, creating a sticky, acidic tar that hardens into a glaze. A standard brush won’t remove glazed creosote. When we find it, we’ll tell you exactly what removal involves and what it costs before we start. This is more common in east-side Newark than in Fremont, and it’s why we recommend inspections on a schedule that accounts for local humidity, not a generic once-a-year rule.
Gas Fireplace Cleaning in Newark
Gas Fireplace Cleaning in Newark homes is usually a factory-built or converted wood-burning fireplace. If your home was built in the 60s or 70s and originally burned wood, the chimney may still vent through an old masonry flue now serving a gas insert. Gas logs burn cleaner than wood, but they still produce soot, mineral deposits from the ceramic logs, and fine particulate that settles in the firebox and on the glass. A typical gas fireplace cleaning in Newark runs $149 to $249, depending on the fireplace type and how long it’s been since the last service.
Log Set and Glass Cleaning
We remove the log set, clean the ceramic logs individually, clean the glass with a non-abrasive cleaner, and vacuum the burner assembly. If the pilot light is weak or the flame is yellow instead of blue, we note it on the report. Most Newark gas fireplace cleanings take under an hour, and you get a written record of what was done.
Venting System Check
For gas fireplaces venting through a masonry chimney, we inspect the flue for corrosion, debris, and blockages. In Newark, salt air rusts out vent connectors and damper assemblies faster than inland. We check the termination cap and any exposed metal, because a rusted cap on a gas chimney isn’t cosmetic. It’s how moisture gets in and corrodes the entire system.
Trusted Brands We Service in Newark
We stock parts for the brands Newark homes actually have. When a cap or damper fails, we replace it with professional-grade materials from Famco, Olympia Chimney, and Gelco. We prefer stainless steel components for Newark’s marine air because they outlast galvanized by a factor of three. And if we need to resurface a flue with cracked tiles, we use HeatShield, not a patch job that fails in two seasons. We keep common parts on the truck so most repairs don’t require a second visit. Written price first, then the work.
See the difference
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After
Before
After
Before
AfterCommon Chimney Sweep Problems We See in Newark Homes
- Rusted galvanized chimney caps. The bay salt corrodes galvanized caps within 5 to 7 years. Flakes drop into the flue, block the damper, and let salt mist settle directly into the firebox. Stainless replacement is usually $180 to $340 installed.
- Cracked clay flue tiles from seismic settling. Newark sits on a seismic zone, and the tiny movements over 40 to 60 years crack original clay liners in ways that have nothing to do with chimney fires. Once cracked, acidic creosote seeps into the mortar joints and accelerates spalling, or flaking, on the exterior brick.
- Fog condensation inside uncapped or rusted flues. Coastal fog rolls through the sloughs on the east side and condenses inside chimneys, turning first-degree creosote into a tar glaze. A standard brush can’t move glazed creosote. It has to be chemically treated or mechanically removed.
- Original firebrick spalling within two decades. Newark homes built in the 1960s and 70s often have original firebrick that wasn’t rated for this microclimate. Under constant salt moisture, the face of the brick flakes off. We see it most often on chimneys off Thornton Avenue and in the neighborhoods east of I-880.
Pricing for Chimney Sweep in Newark, CA
Most standard chimney sweeps in Newark run $189 to $329. Gas fireplace cleaning runs $149 to $249. A rusted cap replacement with a stainless steel Famco unit runs $180 to $340 installed. A Level 2 inspection, which we recommend after an earthquake, before buying or selling a home, or when a Level 1 turns up something unusual, runs $399 to $599. If we resurface a flue with HeatShield, that typically starts around $1,200 to $2,500 depending on flue length and access. Every quote is written before work starts, and the invoice matches the quote. Call (669) 266-5073 for a free estimate. No obligation, no pressure.
We Also Serve Cities Near Newark
Ashby Chimney San Jose dispatches crews to Newark and the surrounding area, including Fremont, Union City, Palo Alto, and Sunnyvale. If you’re in Newark and need a sweep, we’re the local crew that knows the east-side salt air issue. If you’re just across the line in Fremont or Union City, we’ll bring the same written price guarantee and the same camera documentation we use on every Newark job.
Serving Newark, CA - Our Local Coverage Area
We’re based in the Newark 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 Sweep in Newark
Every two years at minimum, even if you burn once a season. Newark’s salt air and fog cause corrosion and creosote issues on chimneys that sit unused, because moisture enters through rusted caps and condenses inside the flue. Occasional wood burning still deposits creosote, and that creosote combines with coastal moisture to form acidic glazing. A Level 1 inspection every two years catches cap rust and tile cracks before they become expensive. Call (669) 266-5073 to schedule, and we’ll put the inspection on a written report with photos.
The cap almost always fails first. Galvanized chimney caps in Newark rust through within 5 to 7 years because of constant salt exposure from bay air. Once the cap goes, moisture gets into the flue and starts a chain reaction: creosote glazing, mortar decay, then flashing failure where the chimney meets the roofline. The crown, or concrete pad at the top, often lasts longer but will crack under seismic settling. We replace caps with stainless steel because it handles Niagara-mist conditions far better than galvanized.
Cracked flue tiles in east-side Newark are usually from seismic settling, not chimney fires. The ground under Newark shifts in small increments over decades, and original clay flue liners from the 1960s and 70s crack under that slow movement. Once cracked, acidic creosote seeps into the mortar joints and accelerates brick spalling. That’s why we recommend a camera inspection on older Newark homes even if you’ve never had a fire; the crack may have been there for twenty years. HeatShield resurfacing can restore the flue without a full rebuild, and we’ll show you the before and after photos.
Yes, and the reason is the fog. Third-degree creosote, the glazed, tar-like stage, forms when moisture condenses inside the flue and mixes with creosote deposits. Newark’s marine layer does exactly that on a regular basis, especially in uncapped chimneys. Inland cities like Fremont get less condensation, so third-degree creosote is less common there. If we find glazed creosote in your Newark chimney, you’ll see it on camera before we quote removal. Call (669) 266-5073 for an inspection and we’ll tell you exactly what you’re dealing with.
Yes. Many Newark homes built in the 60s and 70s were originally wood-burning and now have gas inserts venting through the old masonry flue. We clean the gas fireplace itself and inspect the flue for corrosion, debris, and blockage. We check the termination cap for rust because a failed cap on a gas chimney pulls moisture into the entire system. If the original clay liner is cracked, we’ll recommend a Level 2 inspection and show you the camera footage before quoting any liner work. No scare tactics. Just photos and a written price.
Call Ashby Chimney San Jose at (669) 266-5073 for a free estimate. Written price before any work starts, written guarantee on every repair, and a live person answers the phone. If you live in Newark and your chimney hasn’t been inspected in the last two years, start there. We’ll show you what we find.
Written by Nathan Corliss, Owner at Ashby Chimney San Jose, serving Newark since 2002.