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
Most of the calls we get from Avocado Heights start the same way: a homeowner fires up the fireplace for the first time in November and the living room fills with smoke. The house was built in 1962, the flue has never been touched, and somewhere in that clay-tile liner there’s a squirrel nest packed with avocado leaves. Chimney repair in Avocado Heights usually means bringing a 1950s or 1960s masonry chimney up to a safe, functional standard, not just sweeping it out. We handle the full job, from the firebox to the cap. Call (855) 341-3461 when you’re ready for an honest look at what’s going on up there.
Why Avocado Heights Homes Are Different
Avocado Heights isn’t like the tract-home neighborhoods around it. This is an unincorporated equestrian pocket of the San Gabriel Valley where lots are big, driveways are long, and the houses go back to the Eisenhower and Kennedy years. Most of the homes we work on were built between the 1950s and 1970s: single-story ranches with original brick masonry fireplaces and clay-tile flues that have never been relined. That matters because clay tile doesn’t last forever. After sixty or seventy years, those tiles crack, spall, and separate at the joints. What starts as a simple cleaning often turns into a liner question once the camera goes up.
The climate does its own damage. Summers in Avocado Heights are hot and dry, and winters are mild, so fireplaces sit dormant for months at a stretch. Soot and creosote harden into a glazed crust that a basic brushing won’t remove. Birds and squirrels move into the quiet flue. Then a Santa Ana wind kicks up and sends ash, dust, and debris back down onto the hearth. We also find flues packed with avocado and citrus leaves from the surrounding groves and horse properties. The original 1950s clay-tile flue with no cap is the number-one reason we get called out here. Homeowners have no idea anything is wrong until the smoke backs up into the living room.
Servicing this area also means navigating narrow lanes, long gravel driveways, and properties with horse corrals and outbuildings. We’re used to working around all of it. Our crews come prepared for older chimneys in Avocado Heights that may never have seen professional attention.
Styles & brands we work with





Our Main Avocado Heights Services
Most Avocado Heights homeowners call us for one of two reasons: a chimney that needs sweeping or a dryer vent that hasn’t been cleaned in years. Both are fire hazards, and both get handled by the same crew in the same visit when we’re already at the property.
Chimney Sweep in Avocado Heights
A chimney sweep in Avocado Heights is rarely a quick job, because the flues we’re cleaning here are older and often have years of accumulated creosote, leaf debris, and sometimes animal nesting. We remove what’s in there, inspect the liner condition, and tell you plainly whether the chimney is safe to burn as-is or needs repair before you light another fire. That’s the difference between a sweep and an actual safety inspection. Learn more on our Chimney Sweep in Avocado Heights page.

Dryer Vent Cleaning in Avocado Heights
Dryer vents are the fire hazard most people never think about, and in Avocado Heights the long vent runs in older ranch homes make lint buildup worse. We clean the full run from the dryer to the exterior termination, clear blockages, and check that the flap and termination are working. The NFPA cites dryers as a leading cause of home fires, which is why we treat dryer vent cleaning as a core safety service, not an add-on. 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 usually starts with the same discovery: a 1950s or 1960s masonry chimney with a clay-tile flue that’s spalling, cracked, or full of gaps, and a homeowner who’s been told by a handyman that “it’s probably fine.” It usually isn’t. The hot, dry summers and long idle seasons here harden creosote and stress old mortar joints, while uncapped flues let in rain, debris, and animals. The most common repair we perform is a liner install or resurfacing, followed by cap and crown work that should have been done decades ago. If you’re looking for a full rundown of what we handle, visit our Chimney Repair page.
Chimney Cap Installation
Signs you need it
You have an open flue with no cap, or you’ve seen birds, squirrels, or leaves entering the chimney.
What it costs in Avocado Heights
Chimney cap installation in Avocado Heights typically runs $310 to $430, depending on the flue size and the cap material.
How we do it
We measure the flue, set a properly sized stainless or copper cap from Olympia Chimney or Famco, and fasten it securely so wind and animals can’t dislodge it.
Chimney Cap Replacement
Signs you need it
Your existing cap is rusted through, bent, missing mesh, or blown off by a Santa Ana wind event, or birds have nested inside the old one.
What it costs in Avocado Heights
Replacing a damaged cap in Avocado Heights runs $285 to $405, with the old cap removed and disposed of as part of the job.
How we do it
We remove the failed cap, inspect the flue tile beneath it, and install a correctly sized replacement from Famco or Copperfield that fits the flue opening precisely.
Chimney Liner Installation
Signs you need it
Your clay-tile liner is cracked, spalling, or separated at the joints, or the chimney has never been relined since the house was built.
What it costs in Avocado Heights
Liner installation in Avocado Heights ranges from $2,450 to $3,985, depending on the flue length, diameter, and whether we’re installing stainless or flexible DuraFlex.
How we do it
We size the liner to the appliance and flue, run a DuraFlex stainless system down the existing chase, insulate as needed, and reconnect everything to code.
Chimney Flashing Repair
Signs you need it
You’re seeing water stains on the ceiling near the chimney, damp brick after rain, or rusted, lifted flashing at the roofline.
What it costs in Avocado Heights
Flashing repair in Avocado Heights runs $260 to $485, depending on how much of the flashing needs to be resealed or replaced.
How we do it
We reset the flashing, replace any rusted sections, and seal the transitions so water can’t track into the roof deck or the masonry.
Chimney Crown Repair
Signs you need it
Your chimney crown has visible cracks, crumbling edges, or standing water that’s working its way into the masonry below.
What it costs in Avocado Heights
Crown repair in Avocado Heights costs $225 to $360 for a full crown reseal and resurfacing.
How we do it
We clean the existing crown, fill cracks, and resurface with a weatherproof crown coat that sheds water away from the chimney instead of into it.
What Chimney Repair Costs in Avocado Heights
| Item | Typical range in Avocado Heights |
|---|---|
| Chimney cap installation | $310 – $430 |
| Chimney cap replacement | $285 – $405 |
| Chimney liner installation | $2,450 – $3,985 |
| Chimney flashing repair | $260 – $485 |
| Chimney crown repair | $225 – $360 |
How do I know if my Avocado Heights chimney needs repair or just cleaning?
If you’re seeing smoke backing up, water stains, or flue debris falling into the firebox, that points to repair rather than routine sweeping. We camera-inspect every chimney we work on, and we’ll show you exactly what we see before recommending anything. A cleaning alone won’t fix a cracked liner.
Is it safe to keep using a fireplace with an original clay-tile flue?
Not always. Clay tile cracks over time, and once the liner is compromised, heat and gases can reach the surrounding masonry and framing. In Avocado Heights, where many homes still have the original 1950s liner with no cap, we recommend an inspection before continued use. Call (855) 341-3461 and we’ll walk you through it.
Brands We Service in Avocado Heights
We work with professional-grade chimney and venting brands, including Olympia Chimney, Famco, Copperfield, and DuraFlex. We keep the common parts on hand for Avocado Heights jobs, including caps, liners, and termination fittings, so we’re not waiting on a parts order to finish a flue repair. If you’re curious about the full list, visit our brands page.
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 flue) | $189 – $269 |
| Chimney sweep with animal nest removal | $310 – $405 |
| Chimney cap installation | $310 – $430 |
| Chimney cap replacement | $285 – $405 |
| Chimney liner installation | $2,450 – $3,985 |
| Chimney flashing repair | $260 – $485 |
| Chimney crown repair | $225 – $360 |
| Dryer vent cleaning | $139 – $229 |
The two things that push price up in Avocado Heights are age and neglect. A flue that hasn’t been touched since the 1960s takes longer to clean, and a liner that’s cracked or spalled turns a simple sweep into a repair job. We give you a straight price before we start, and we don’t recommend any repair without showing you the camera evidence first.
Neighborhoods We Serve in Avocado Heights
We cover the full 91746 ZIP code and the surrounding unincorporated area, from the ranch properties off Don Julian Road to the hillside homes along Avocado Crest Drive and the equestrian lots near the San Jose Creek corridor. Our crews are in this area regularly, so scheduling is flexible and we can usually get to an Avocado Heights property within a few days of your call.
- Avocado Heights (91746)
- Don Julian Road corridor
- Equestrian lots and ranch properties
- Homes along Avocado Crest Drive
- San Jose Creek area
Service Area – Cities Near Avocado Heights
Walnut Chimney also covers the neighboring San Gabriel Valley communities. If you’re in West Puente Valley, CA, La Puente, CA, Valinda, CA, or El Monte, CA, we can usually extend our route to your home on the same trip out here. Call and ask; if we’re already in the area, it’s easy to add a stop.
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 repair work like cap replacement, crown resurfacing, and flashing repair doesn’t require a permit. A full liner installation may need sign-off depending on current building codes, and we’ll tell you ahead of time if that applies to your job. We handle the work to code either way. We’ve been serving Avocado Heights since 2017 and know the local requirements.
We’re in the San Gabriel Valley regularly, so most Avocado Heights appointments happen within a few days of your call. If it’s a safety issue, like a backdrafting fireplace or a gas smell, tell us when you call and we’ll prioritize it. The number is (855) 341-3461.
Yes. We work on hillside lots, long gravel drives, and properties with horses and outbuildings all the time. Our crews are used to navigating tight turnarounds and gated entries, and we’ll let you know if we need access to a specific side of the house for ladder setup.
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
"Good work. The written inspection report took about a week to arrive after I asked for it, which was slower than I expected."
— Marco Flores"Fireplace had never drawn properly since we moved in. He found the damper was only opening halfway due to a bent linkage and fixed it in ten minutes."
— Elena Salazar"Liner was cracked in two places. He walked me through the repair options honestly, including the one that was cheaper for him and better for me."
— Megan Ackerman