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 clay-tile flue that has cracked after decades of sitting unused through the San Gabriel Valley’s mild winters, or a cap and screen job on a chimney where birds have nested on a tree-heavy equestrian lot. Limestone Chimney Sweep has served Avocado Heights since 2014, and we carry the materials to fix what we find. If you need a sweep, a repair, or a dryer vent inspected, call (855) 341-5439 for a free estimate.
Why Avocado Heights Homes Are Different
Avocado Heights is an unincorporated pocket of the San Gabriel Valley where post-war and 1950s – 1970s ranch homes sit on generous, sometimes equestrian-zoned lots. Many of those homes still have their original brick masonry fireplaces and clay-tile flues, plus a share of newer rebuilds that use prefabricated metal fireplace systems. The difference matters for chimney work because clay tile and prefab metal require different tools, different repair approaches, and different parts.
The climate plays a bigger role than most homeowners realize. Fireplaces in Avocado Heights burn infrequently, usually only during December through February cold snaps. That means creosote builds slowly, which sounds like good news, but it also means a chimney can go years without being looked at. Cracked mortar joints in clay-tile flues, rusted dampers, and missing caps are common on homes where the fireplace hasn’t been used since the previous owner bought the place. When we arrive, the job is often less about heavy soot and more about restoring a system that has quietly deteriorated.
The semi-rural layout changes logistics, too. Narrow lane access and estate-style lots mean we stage equipment differently than we would on a tract-home street in a denser part of the SGV. We plan for it, and we quote the job based on the actual conditions we can see, not a generic price sheet.
Styles & brands we work with





Our Main Avocado Heights Services
Most Avocado Heights homeowners call us for one of two reasons: a fireplace that hasn’t been cleaned or inspected in years, or a dryer vent that an inspector flagged during escrow. Both are fire-safety visits at their core.
Chimney Sweep in Avocado Heights
A sweep here often doubles as a condition report on a chimney that hasn’t been touched since the house changed hands. We remove creosote and debris, but we also check the flue, cap, crown, and damper while we’re up there. On Avocado Heights lots with mature trees, uncapped chimneys are an open invitation to birds and squirrels, so cap and screen recommendations come up on a large share of first visits. If you want a deeper look at what a full sweep includes, see our Chimney Sweep in Avocado Heights page.

Dryer Vent Cleaning in Avocado Heights
Dryer vents clog with lint over years, and the mild climate here doesn’t slow that down. Long vent runs through single-story ranch homes, often running through crawl spaces or out low exterior walls, trap lint at elbows and termination points. We clean the entire run and check the exterior hood for proper airflow. For homeowners who already own the home or are under contract, this is a straightforward protection against the leading cause of appliance fires. Details are on our Dryer Vent Cleaning in Avocado Heights page.

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 is often about age, not use. A fireplace that sat dormant from one December to the next for twenty years can look fine from the hearth while the clay-tile flue above has cracked mortar joints, a rusted damper, or a crown that has spalled in the dry, hot summers. When we open one up for a repair, the first thing we do is get a look at the actual condition with a camera, because nothing gets recommended or replaced on our word alone. If the scope is bigger than a component swap, we have a full Chimney Repair hub with detailed breakdowns, but the work on this page is what we do most often in Avocado Heights.
Chimney Cap Installation
Signs you need it
You can hear birds or rustling in the flue, you find nesting material or twigs on the smoke shelf, or rainwater drips into the firebox during storms.
What it costs in Avocado Heights
A new chimney cap installed in Avocado Heights typically runs $160 – $380 depending on the flue size, mounting surface, and whether a custom stainless steel cap is needed.
How we do it
We measure the flue opening, select the correct cap size and material (we stock Famco and Copperfield products), and mechanically fasten it to the crown or flue tile so it stays put through Santa Ana winds.
Chimney Cap Replacement
Signs you need it
The existing cap is rusted through, bent from a branch or wind, or was never sized correctly and lets sparks or embers pass through.
What it costs in Avocado Heights
Replacing a worn or damaged cap in Avocado Heights typically falls between $170 – $430 after we account for removal of the old unit and any small crown repairs around the mount.
How we do it
We remove the old cap, inspect the flue for damage it may have been hiding, clean the mounting surface, and install a correctly sized replacement with a mechanical fastener.
Chimney Liner Installation
Signs you need it
A camera inspection shows cracked flue tiles, gaps in mortar joints, or spalling, and the system can no longer safely contain combustion gases or chimney fire heat.
What it costs in Avocado Heights
Chimney liner installation in Avocado Heights typically ranges from $2,500 – $5,000 depending on flue length, fuel type, and whether the old liner must be removed or can be left in place.
How we do it
We size the new liner to the appliance and flue, then install a DuraFlex or equivalent professional-grade liner, insulate where code requires, and secure the top and bottom terminations, followed by a camera verification of the finished install.
Chimney Flashing Repair
Signs you need it
You see water stains on the ceiling near the chimney, damp drywall in the attic, or rusted and lifted flashing at the roof penetration.
What it costs in Avocado Heights
Flashing repair or replacement in Avocado Heights typically runs $350 – $850 depending on how much of the existing flashing can be salvaged and whether roofing material has to be pulled back.
How we do it
We remove the old flashing, inspect the underlayment and masonry where it meets the roof, install new step and counter flashing, and reseal the junction with a compatible sealant.
Chimney Crown Repair
Signs you need it
The concrete crown on top of the chimney has visible cracks, is spalling onto the roof, or lets water pool and seep into the masonry below.
What it costs in Avocado Heights
Crown repair in Avocado Heights typically ranges from $350 – $900 depending on whether we can patch and reseal the existing crown or need to form and pour a new one.
How we do it
We clean the crown surface, fill cracks with a flexible masonry sealant, apply a crown coat when the damage is surface-level, or form and pour a new properly sloped crown when the old one has failed structurally.
What Chimney Repair Costs in Avocado Heights
| Item | Typical range in Avocado Heights |
|---|---|
| Chimney cap installation | $160 – $380 |
| Chimney cap replacement | $170 – $430 |
| Chimney flashing repair | $350 – $850 |
| Chimney crown repair | $350 – $900 |
| Chimney liner installation | $2,500 – $5,000 |
How do I know if my Avocado Heights chimney actually needs repair?
You don’t, until someone looks inside with a camera. We never recommend work based on guesswork or a bare visual from the roof. A camera inspection shows the flue condition, and we back every repair recommendation with photos you can see yourself before you approve a dollar of work.
Can an old clay-tile chimney in Avocado Heights be fixed without tearing it out?
Often, yes. If the clay tiles are cracked but the chimney structure is sound, HeatShield restoration can rehabilitate the flue without demolition. Where a structural reline is required, we install a DuraFlex liner. Either way, the repair is scoped with camera evidence and a clear explanation, and you can always call (855) 341-5439 to talk through what we found.
Brands We Service in Avocado Heights
We stock and install professional-grade components that most solo sweeps don’t carry: Gelco, Olympia Chimney, Famco, and Copperfield among them. Caps, dampers, chase covers, and flashing components are built from named, warrantied parts, not generic hardware-store substitutes. See our brands for the full range, and expect most common parts to be on the truck the day we arrive in Avocado Heights.
See the difference
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AfterPricing for Chimney Company in Avocado Heights, CA
| Service | Typical range in Avocado Heights |
|---|---|
| Chimney sweep (standard masonry fireplace) | $180 – $340 |
| Chimney sweep with cap/screen install | $250 – $450 |
| Chimney cap installation | $160 – $380 |
| Chimney cap replacement | $170 – $430 |
| Chimney flashing repair | $350 – $850 |
| Chimney crown repair | $350 – $900 |
| Chimney liner installation | $2,500 – $5,000 |
| Dryer vent cleaning | $85 – $485 |
| Dryer vent repair / reroute | $110 – $450 |
| HeatShield liner restoration | $900 – $3,500 |
Prices push toward the higher end in Avocado Heights when we’re working on an estate-style lot with difficult roof access, when the existing cap or crown has been damaged by years of unattended tree growth, or when a flue needs a custom liner size. Whatever we quote, it’s a flat price agreed upon before we book, and we don’t change it after we start.
Neighborhoods We Serve in Avocado Heights
We cover all of Avocado Heights, including the 91746 ZIP code, and we’re familiar with the way the area’s ranch homes and equestrian lots are laid out. Our team works across the unincorporated community’s residential streets, including:
- Avocado Heights neighborhoods near Avocado Heights Park
- Homes along San Gabriel Boulevard
- Residential streets east of Durfee Avenue
- Equestrian lots near the southern edge of the community
Response time in Avocado Heights is typically within a few business days, and we can often work around the timing of an escrow inspection if you’re buying or selling a home.
Service Area – Cities Near Avocado Heights
Limestone Chimney Sweep also works in the neighboring San Gabriel Valley communities around Avocado Heights, including West Puente Valley, CA, La Puente, CA, Valinda, CA, and South El Monte, CA. If you’re nearby and not sure whether we cover your street, call (855) 341-5439.
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
Most appointments in Avocado Heights can be scheduled within a few business days. If you’re in escrow and need an inspection on a deadline, mention that when you call (855) 341-5439 and we’ll work the schedule around your closing date whenever possible.
Since Avocado Heights is unincorporated, building permits are handled through Los Angeles County, not a city hall. Most routine sweeps, cap replacements, and flashing repairs don’t require a permit. Larger structural or liner projects may, and we’ll tell you plainly if your job falls into that category before any work begins.
Yes. We do pre-purchase and escrow chimney inspections regularly in Avocado Heights, where real-estate transactions are often the first time a chimney has been examined in years. We provide a camera inspection and a direct report of what we find, and we don’t bury the result in a sales pitch. Call (855) 341-5439 to book.
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."
— Christine Kim"Thorough sweep and a clear report. He was running late from the job before and arrived near the end of the window, though he did call to warn me."
— Tracy Sullivan"Crown was cracked and taking water. Repaired it rather than quoting a rebuild, which the previous company had pushed hard for."
— Marco Salazar