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 Avocado Heights, CA
Chimney repair in Avocado Heights usually means one of two things: a cracked clay flue liner from a 1950s or 60s ranch home, or a chimney cap and crown that have taken years of San Gabriel Valley sun and Santa Ana wind. Lantern Chimney Sweep has served Avocado Heights since 2013, and we handle both. Because this is unincorporated LA County, most repair work here involves County permitting, not a city building department, and many homeowners call us unsure who even has jurisdiction. We walk you through that part too.
We also sweep chimneys and clean dryer vents, and we diagnose and repair what we find. If you notice spalling brick, a rusted cap, or a fireplace that drafts poorly, call (855) 341-8132 and we’ll tell you exactly what’s going on inside your flue.
Why Avocado Heights Homes Are Different
Avocado Heights is a small unincorporated San Gabriel Valley pocket of mid-century ranch and tract homes, mostly built between the 1950s and 1970s. The fireplaces in these houses were often built as decorative masonry boxes with original clay-tile flue liners. Fifty or sixty years later, those clay tiles crack, spall, and separate at the joints. The heat and drought of the inland valley accelerate it, and the dry Santa Ana winds find every gap.
What makes Avocado Heights genuinely different from neighboring La Puente or El Monte is jurisdiction. Because the community is unincorporated, a chimney repair that requires a permit goes through LA County Public Works, not a city building department. Homeowners sometimes tell us they called a city office first and got nowhere. We’ve helped enough Avocado Heights residents sort out County requirements that it’s part of how we approach every job here. The housing stock also includes larger parcels with detached structures and horse-keeping lots, where second chimneys and stovepipes need their own inspection. And because fireplaces sit unused from April through October, creosote from last winter glazes over summer and hardens, which changes what a sweep finds in fall.
Styles & brands we work with





Our Main Avocado Heights Services
Two services make up most of our Avocado Heights work: chimney sweeping and dryer vent cleaning. Homeowners here usually start with one and add the other once we explain what a single appointment can cover.
Chimney Sweep in Avocado Heights
Most Avocado Heights sweeps involve original clay liners and years of creosote that has baked on during the hot, dry months when the fireplace isn’t used. We remove the buildup, then inspect the flue for cracks and spalling that the creosote was hiding. On older ranch homes in the 91746 ZIP, that inspection often turns up liner damage that hasn’t been addressed since the house was built. If we find it, we can repair it in the same visit estimate, not hand you off to another company. Learn more about our Chimney Sweep in Avocado Heights process.

Dryer Vent Cleaning in Avocado Heights
Dryer vents in Avocado Heights ranch homes often run long horizontal distances through attics or crawl spaces, especially in homes where the laundry room sits at the center of the house. Lint builds in those long runs, and in a dry inland climate, that lint is tinder. We clean the full vent run using Famco-compatible components where repairs are needed, and we inspect the exterior termination for bird nests and blockage. One visit can address your chimney and your dryer vent, which are the two leading residential fire hazards tied to heat and airflow. See our Dryer Vent Cleaning in Avocado Heights page for the full scope.

What happens when you call
- 1
A real person answersNo phone trees — you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Chimney Repair in Avocado Heights
Chimney repair in Avocado Heights tends to center on the original clay flue liners and masonry caps from the tract-home era. Decades of inland heat, dry air, and Santa Ana-driven temperature swings crack those liners and erode the crown mortar, and once water gets in, the damage accelerates fast. We repair what we can with professional-grade materials, and when a liner is beyond repair, we resurface or reline it properly rather than leaving a hazard in place. Our Chimney Repair team handles the full scope, from caps and crowns to liners and flashing.
Chimney Cap Installation
Signs you need it
Rainwater or bird droppings inside the firebox, or a visible opening at the top of the flue with no cover.
What it costs in Avocado Heights
A new chimney cap installation in Avocado Heights typically runs $200 – $450, including the cap and mounting.
How we do it
We measure the flue opening, install a manufacturer-grade cap (Gelco or Olympia Chimney, depending on fit), and seal it so wind and rain stay out.
Chimney Liner Installation
Signs you need it
Cracked flue tiles visible during inspection, smoke backing into the house, or a fireplace that was converted to gas and needs a correctly sized liner.
What it costs in Avocado Heights
Chimney liner installation in Avocado Heights typically costs $1,500 – $3,200, depending on flue length and diameter.
How we do it
We inspect the existing flue with a camera, then install a DuraFlex flexible liner sized to the appliance, following LA County requirements for unincorporated properties.
What Chimney Repair Costs in Avocado Heights
| Item | Typical range in Avocado Heights |
|---|---|
| Chimney cap installation | $200 – $450 |
| Chimney cap replacement | $250 – $500 |
| Chimney liner installation | $1,500 – $3,200 |
Prices vary by chimney height, roofline access, and the condition of the existing masonry. We give you a flat price before any work begins, after a camera inspection you can see for yourself.
Can you replace just the chimney crown without rebuilding the whole stack?
Yes, in most cases we can replace the crown without touching the brick below. We remove the failed crown, form and pour a new one with proper overhang, and the flue and chase stay intact.
How do I know if my clay liner is actually cracked?
You can’t always tell from the outside. We run a camera through the flue and show you the footage. Cracked tiles, gaps at joints, and spalling are visible on screen, and you’ll see exactly why we recommend repair or relining.
Brands We Service in Avocado Heights
We work with professional-supply materials, the same brands restoration contractors specify: Gelco caps, Olympia Chimney components, and Copperfield and Famco parts for vent and termination work. These aren’t hardware-store substitutes, and we keep common Avocado Heights sizes on hand for faster turnaround. See the our brands page for the full list.
See the difference
Before
After
Before
After
Before
AfterPricing for Chimney Company in Avocado Heights, CA
| Service | Typical range in Avocado Heights |
|---|---|
| Chimney sweep (standard) | $169 – $250 |
| Chimney sweep + dryer vent cleaning (combined) | $229 – $329 |
| Chimney cap installation | $200 – $450 |
| Chimney cap replacement | $250 – $500 |
| Chimney liner installation | $1,500 – $3,200 |
| Chimney flashing repair | $300 – $700 |
| Chimney crown repair | $350 – $850 |
| Chimney crown rebuild | $800 – $1,800 |
| Chimney repointing (minor) | $400 – $900 |
| Chimney repointing (extensive) | $1,200 – $3,000 |
Prices climb on two-story homes with steep rooflines, and on houses where the original clay liner has failed so thoroughly that a full reline is the only code-compliant fix. Whatever we quote, it’s the same price before and after the job, based on a camera inspection you see with us.
Neighborhoods We Serve in Avocado Heights
We cover all of Avocado Heights in the 91746 ZIP, including the ranch tracts near Don Julian Road, the larger parcels closer to the horse-keeping lots, and the homes around Workman Mill Road where the county boundary shifts quickly. Most calls in Avocado Heights can be scheduled within a few days to a week, depending on the season.
- Don Julian Road area
- Workman Mill Road corridor
- Rancho del Norte area
- Horse-keeping parcels south of Valley Boulevard
Service Area – Cities Near Avocado Heights
We also serve the communities around Avocado Heights, including West Puente Valley, CA, La Puente, CA, Valinda, CA, and El Monte, CA. If you’re nearby in the San Gabriel Valley and dealing with an older chimney, the same crew and the same flat-price process apply.
Serving Avocado Heights, CA — Our Local Coverage Area
We’re based in the Avocado Heights 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 Avocado Heights
We come to Avocado Heights regularly. We’ve served the community since 2013, and our crew knows the 91746 area, the housing stock, and the County permitting reality. You get the same team whether you’re in a ranch tract or on a larger parcel.
Sometimes, and it depends on the scope. A basic cap replacement usually doesn’t require one, but a liner installation or significant crown work can fall under LA County Public Works requirements. We’ll tell you what applies to your specific job before we start, and we’ll guide you through the process.
Most Avocado Heights calls can be scheduled within a few days to a week. Fall and early winter are busier because people start using fireplaces again after the long off-season, so if you’re noticing issues in September or October, earlier booking helps. Call (855) 341-8132 to check the next available slot.
Call (855) 341-8132 for a free estimate on chimney repair, sweeping, or dryer vent cleaning in Avocado Heights. We’ll put a camera in your flue, show you what we find, and give you a flat price before anything starts.
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 Avocado Heights Customers Say
"Swept it, capped it, and installed a proper damper. The downdraft smell in the summer that we'd lived with for years is gone."
— Roger Barrett"Level two inspection before we bought the house. The report was detailed enough to use as a negotiating point and he explained every photo in it."
— Allison Mercer"Good work. The written inspection report took about a week to arrive after I asked for it, which was slower than I expected."
— Marco Mendoza