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 Lomita
A chimney sweep in Lomita typically runs $189 – $259 for a standard open-flue fireplace with a clean firebox, and most sweeps here are finished in under two hours. What makes Lomita different is that our Gelco service in Lomita is usually about moisture damage and rusted components, not heavy creosote. If you live in the 90717 zip code and haven’t had your chimney looked at in years, call Walnut Chimney at (855) 341-3461 for a free estimate. Russ Dempsey and our team know exactly what salt air does to a mid-century Lomita chimney, because we see it every week.

Why Walnut Chimney Is Lomita’s Preferred Chimney Sweep Company
Lomita homeowners call us because we show up knowing what to look for on a 1950s stucco home near the coast. The marine layer off the South Bay keeps chimney exteriors damp for months at a time, which means a galvanized cap that looks fine from the ground may already be rusting through at the seams. We don’t just sweep what’s visible. We check what Lomita’s climate actually degrades: caps, crowns, flashing, dampers, and the mortar joints that hold the whole stack together.
Homeowners across Lomita, from the streets off Pacific Coast Highway up toward Lomita Boulevard and Narbonne Avenue, tell us the same thing after we finish: they had no idea their chimney had been absorbing moisture for years. Our Chimney Sweep team carries stainless replacement caps and proper crown-sealing materials on the truck, so we often correct the problem the same visit instead of scheduling a return trip. That’s the difference between a sweep-only company and one built for repair.
Russ Dempsey leads every inspection with a simple rule: nothing gets recommended unless the homeowner can see the problem in a photo or camera feed. That matters in Lomita, where we’ve watched too many residents get quoted for liners they didn’t need by fly-by-night operations. We take Level 1 and Level 2 inspections seriously because the evidence in the flue tells you exactly what’s required, and what can safely wait.
Styles & brands we work with





Chimney Cleaning in Lomita
Chimney Cleaning in Lomita is less about removing heavy wood-tar glaze and more about clearing out what the damp coastal air leaves behind: crumbling mortar dust, rust scale from old dampers, nesting debris, and whatever accumulated before the fireplace was converted to gas or sealed off. A standard sweep for a masonry fireplace in Lomita runs $189 – $229, while a two-story exterior chimney with a taller stack or stubborn creosote runs $249 – $289. We always pair the sweep with a visual check of the exterior crown and cap, because that’s where Lomita chimneys fail first.
Creosote and Soot Removal
Even in Lomita, where many fireplaces are decorative or gas-converted, creosote still forms in flues that occasionally burn wood. First-degree creosote is a light, brushable soot; third-degree tar glaze is the glossy, hardened deposit that requires rotary tools and chemical treatment. Most Lomita homes with active fireplaces fall somewhere between, and we match the removal method to what’s actually on the flue wall, not what a generic checklist says.
Annual Sweep and Inspection
If you burn wood even ten times a year in Lomita, an annual sweep is the right interval. If the fireplace is decorative or gas-only, every two to three years is usually enough for the sweeping side, but an exterior inspection should still be annual because the salt air doesn’t take a year off. We’ll say it plainly: a clean chimney is a measurable thing, and our camera report shows you the before and after so nothing is left to guesswork.
Fireplace Cleaning in Lomita
Fireplace Cleaning in Lomita means more than vacuuming ash. We pull the logs or gas set out, clean the firebox floor and walls, remove the accumulated soot from the smoke shelf, and check the damper for rust-through, which we encounter constantly in older Lomita homes. A firebox-only cleaning with a basic damper check runs $129 – $179. A full fireplace cleaning that includes the smoke chamber and a camera look up the flue runs $189 – $249, and that’s the version we recommend for any Lomita homeowner who hasn’t had service in three or more years.
Gas and Decorative Fireplace Service
Most Lomita homes built in the 1940s through the 1960s originally had wood-burning masonry fireplaces, and many were converted to gas log sets or sealed decorative use decades ago. Those conversions often left the original clay flue and cleanout door in place, which is where damp marine air gets pulled up and condenses inside the smoke chamber. During fireplace cleaning, we remove the gas set and check the flue above it, because a gas fireplace still vents into a chimney that needs to be intact.

Dampers and Cleanout Doors
On a 1952 stucco ranch off Lomita Boulevard near the Pacific Coast Highway junction, we found the original galvanized cap rusted into lace and the mortar crown cracked from years of salt-air exposure. The firebox itself was clean, because the fireplace had been sealed for a decade. We replaced the cap with a stainless DuraFlex model, rebuilt the crown with a sloping wash, and swept the flue. Then we showed the homeowner how the old cleanout door had been letting damp air climb the smoke chamber the whole time. That’s the kind of fireplace cleaning Lomita actually needs: not because the firebox is dirty, but because the chimney envelope has been quietly failing.
Trusted Brands We Service in Lomita
We stock and install parts from the brands that hold up in Lomita’s salt air, which is why you’ll see stainless and ceramic-grade materials on our trucks, not bargain galvanized pieces. We regularly install DuraFlex liner systems, HeatShield ceramic flue resurfacing, and Famco caps and dampers, selecting the right component for the specific failure we find. If a Lomita homeowner needs a chimneytop damper replaced, we don’t reach for whatever’s cheapest. We fit the part to the flue dimensions and the coastal exposure, because a cap that can’t handle marine moisture is a repeat service call waiting to happen. Lomita customers get the same professional-grade sourcing as the rest of Southern California.
See the difference
Before
After
Before
After
Before
AfterCommon Chimney Sweep Problems We See in Lomita Homes
- Rusted galvanized caps and dampers. The marine layer off the South Bay keeps chimney exteriors damp for much of the year, so galvanized steel corrodes through faster than the firebox ever gets hot. On many 1950s Lomita chimneys, the damper is a rusted skeleton while the flue below it is nearly clean.
- Eroded mortar crowns and joints from salt air. Salt-laced moisture works into the mortar on chimney crowns and between bricks, causing spalling and hidden gaps. A Level 1 inspection from the ground can miss this if the technician doesn’t get up close to the crown and flashing.
- Sealed decorative flues trapping condensation. Lomita has a lot of fireplaces that were sealed or capped years ago when owners stopped burning wood. The sealed flue then holds condensation inside the smoke chamber, quietly rotting the interior mortar until a Level 2 camera inspection reveals it.
- Old cleanout doors letting damp air climb the chimney. Many original Lomita chimneys still have the old metal cleanout door at the base. When the gasket or frame corrodes, moist ocean air gets drawn up the smoke chamber and accelerates interior decay that no amount of sweeping will fix.
Pricing for Chimney Sweep in Lomita, CA
A standard chimney sweep in Lomita costs $189 – $259 for a masonry fireplace with a clean, accessible flue. Fireplace cleaning runs $129 – $249 depending on whether it’s firebox-only or includes the smoke chamber and a camera inspection. If we find a rusted damper, the replacement typically runs $180 – $320 for a stainless Famco unit, and a stainless DuraFlex cap runs $120 – $220 installed. Crown repairs with HeatShield sealer run $300 – $600 depending on how much mortar needs rebuilding. What affects your price in Lomita: chimney height, flue size, how long it’s been since the last cleaning, and whether the marine layer has already done damage to the exterior components. Every quote is free, and we never perform work without showing you exactly what we found. Call (855) 341-3461 to set up an estimate.
We Also Serve Cities Near Lomita
Walnut Chimney serves the full South Bay corridor. We regularly work in Chimney Sweep in Lomita and the surrounding communities of Torrance, Rolling Hills Estates, West Carson, and Carson. If you’re a mile over the Lomita line, we still cover your chimney.
Serving Lomita, CA — Our Local Coverage Area
We’re based in the Lomita 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 Lomita
If your Lomita fireplace is decorative, sealed, or gas-converted, you should have the exterior crown, cap, and damper inspected every year and the flue swept every two to three years. The salt air and marine moisture attack the metal and mortar even when no fire is lit, so skipping years means hidden corrosion. Call (855) 341-3461 and we’ll set up an annual inspection cycle matched to your chimney’s actual condition.
Check the chimney cap, damper, and the area around the cleanout door at the base of the chimney for rust or damp staining, since these are the first points where Lomita’s damp marine air causes trouble. If the flue was sealed, condensation has probably been trapped inside the smoke chamber, and only a Level 2 camera inspection will show what the mortar looks like. Call (855) 341-3461 for a free estimate.
No, not for long. Galvanized caps routinely rust through in five to ten years in Lomita because the marine layer keeps the exterior damp and the salt accelerates corrosion, especially on older 1950s chimneys. We replace them with stainless caps, usually a DuraFlex or Famco model, which holds up far better within a few miles of the coast.
First-degree creosote is a light, flaky soot that brushes off easily; tar glaze is the third-degree deposit, a hard, glossy, baked-on layer that requires rotary cleaning tools and sometimes chemical treatment. Most Lomita fireplaces that burn wood occasionally fall in the first-to-second-degree range, but gas-converted and sealed fireplaces often develop internal moisture damage instead, which is a separate problem entirely. We assess what’s actually in your flue before touching a brush to it.
Yes. Damp marine air rusts the damper plate and its frame from the top and bottom, so a damper that hasn’t moved in years in Lomita is often seized or rusted through regardless of use. We check damper condition during every sweep and often replace corroded units with stainless models sized for the flue. Call (855) 341-3461 for a damper inspection and exact quote.
Written by Russ Dempsey, Owner at Walnut Chimney, serving Lomita and the South Bay.