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 Monrovia, CA
Chimney repair in Monrovia usually means working on masonry that’s been standing since before the 210 freeway existed. The Craftsman bungalows near Old Town and the foothill homes below Angeles National Forest hold original brick-and-mortar fireplaces with clay tile liners now cracking, spalling, or pulling away from their mortar beds. Chestnut Chimney Sweep has served Monrovia since 2012, and we’ve learned what these older systems need after decades of Santa Ana wind cycles and dry-season heat. Call (855) 360-4975 when your chimney starts telling you something’s wrong.
Why Monrovia Homes Are Different
Monrovia sits hard against the San Gabriel Mountains, and that geography writes itself into every chimney inspection we do here. The Santa Ana winds funnel down the foothill canyons and drive live oak leaves, ash, and fine dust directly into chimney caps and flues. In the blocks below the mountains, we routinely find caps and spark arrestors packed with debris after a single wind event, which is why post-wind-season sweeps catch problems that quiet-season inspections miss.
The housing stock compounds it. Homes near Old Town and along the foothill streets date to the early 1900s, with original brick chimneys built for wood fires and no consideration for modern liner systems. Mid-century ranch houses in the 91016 and 91017 ZIP codes fare better structurally, but their clay tile liners are now 60 to 70 years old and showing hairline cracks that only reveal themselves under the heat stress of a working fire. We work on both types here, and the differences matter when we spec a repair.
Styles & brands we work with





Our Main Monrovia Services
Most Monrovia homeowners call us for one of two reasons: a fireplace that hasn’t been swept in years, or a dryer that’s suddenly taking two cycles per load. Both are combustion-safety issues, and both are covered in a single visit.
Chimney Sweep in Monrovia
A sweep in Monrovia means more than brushing out last winter’s creosote. The wind-driven debris from the foothills means we’re also clearing leaf litter, ash, and the fine dust that settles into smoke shelves and dampers. For older masonry chimneys near Old Town, a sweep is when we spot the cracked clay tiles and deteriorated mortar joints that need repair before they become firebox or flue failures. See what’s involved on our dedicated Chimney Sweep in Monrovia page.

Dryer Vent Cleaning in Monrovia
Dryer vents clog faster in Monrovia than in flatland LA, because the same Santa Ana dust that fouls chimney caps also gets drawn into dryer exhaust lines. Lint builds on that dust, restricts airflow, and pushes your dryer to run longer and hotter, which is how vent fires start. We treat dryer vent cleaning as a fire-safety service, not a sideline, and we bring Famco-grade venting knowledge to every inspection. Read the specifics on our Dryer Vent Cleaning in Monrovia 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 Monrovia

Chimney repair in Monrovia is mostly a job for old masonry. The early-1900s bungalows and foothill Craftsman homes were built with brick chimneys and clay tile liners that were never designed for 100 years of Santa Ana cycles, fire-season smoke, and dry heat. We regularly find spalled bricks, cracked crowns, and clay tiles that have separated under thermal stress, problems that a sweep alone won’t fix. When we repair a chimney, we specify the right liner, cap, or restoration product for your system by name, so you know exactly what’s going in and why it belongs there. That’s the difference between a patch job and a repair that holds. For the full scope of what we do, see our Chimney Repair service page.
Chimney Cap Installation
Signs you need it
You’re seeing water stains on the firebox walls after rain, or you’ve found leaves and twigs inside the firebox because birds or wind are getting straight down the flue.
What it costs in Monrovia
Chimney cap installation in Monrovia typically runs the same range our customers see across the foothill region, with labor and cap materials bundled per job.
How we do it
We measure the flue opening, select the correct cap size and material for your specific flue type, secure it to the flue tile or crown, and verify draw and spark arrestor function.
Chimney Liner Installation
Signs you need it
Your sweep found cracked or missing clay tile sections during an inspection, or you’re seeing pieces of tile flaking into the firebox after fires.
What it costs in Monrovia
Chimney liner installation in Monrovia is priced as a full replacement, with the liner material and installation labor bundled into one project cost.
How we do it
We remove the failed clay tile or old metal liner, prep the flue, and install a DuraFlex stainless liner sized to your fireplace or appliance, then test the draft and seal the top plate.
What Chimney Repair Costs in Monrovia
| Item | Typical range in Monrovia |
|---|---|
| Chimney cap installation | $200 – $500 |
| Chimney cap replacement | $250 – $600 |
| Chimney liner installation | $900 – $3,500 |
How long does chimney repair take in Monrovia?
Most cap and crown repairs are done in a single visit. Liner replacements run a half day to a full day depending on flue access and the condition of the surrounding masonry.
Do I need a new liner if my chimney inspection found cracked tiles?
Not always. We offer HeatShield restoration, which can add years to a deteriorating liner without a full replacement. Call (855) 360-4975 and we’ll tell you straight from the camera footage.
Brands We Service in Monrovia
We carry DuraFlex, Copperfield, Gelco, and Olympia Chimney products because the parts matter as much as the labor. These are the same professional-grade brands certified chimney technicians spec industry-wide, and we stock common Monrovia sizes locally for faster turnaround. Learn more on our brands page.
See the difference
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AfterPricing for Chimney Company in Monrovia, CA
| Service | Typical range in Monrovia |
|---|---|
| Chimney sweep, standard flue | $149 – $250 |
| Chimney sweep, heavy creosote | $225 – $375 |
| Dryer vent cleaning | $89 – $175 |
| Chimney cap installation | $200 – $500 |
| Chimney cap replacement | $250 – $600 |
| Chimney liner installation | $900 – $3,500 |
| Chimney flashing repair | $350 – $700 |
| Chimney crown repair | $400 – $900 |
What pushes a Monrovia quote higher is usually the condition of the existing masonry and how much wind-driven debris has to be cleared before work can start. We give you a flat price after the inspection, before any work is scheduled, so there are no surprises when the crew arrives.
Neighborhoods We Serve in Monrovia
We run calls all over Monrovia, from the foothill blocks near the base of the San Gabriels down to the flats. Most of our Monrovia customers are in the 91016 and 91017 ZIP codes, and we can usually get to any neighborhood in the city within a few days of your call.
- Old Town Monrovia
- Foothill neighborhoods below Angeles National Forest
- North Monrovia
- The mid-century ranch blocks east of Myrtle
- South Monrovia near Duarte Road
Service Area – Cities Near Monrovia
Beyond Monrovia, our trucks cover the surrounding foothill communities with the same sweep, repair, and dryer vent services. We regularly work in Mayflower Village, CA, Duarte, CA, Bradbury, CA, and Arcadia, CA. If you’re in one of those cities, the same Chestnut team and the same professional-grade parts are available to you.
Serving Monrovia, CA — Our Local Coverage Area
We’re based in the Monrovia 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 Monrovia
Most chimney sweeps and cap replacements don’t need a city permit. Structural repairs like crown rebuilding or liner installation may. We’ll tell you what’s required for your specific job before we start, and we’ll handle the parts we can.
Before burning season, which in Monrovia means before the first Santa Ana event and the winter wood-burning months, schedule two to three weeks ahead. That’s when foothill homeowners book inspections after the wind-driven debris has settled into caps and flues.
Yes, and we recommend it for any early-1900s home near Old Town. A pre-purchase camera inspection shows cracked clay tiles, failed mortar, or hidden cap damage before you close. Call (855) 360-4975 to schedule one.
If your chimney, fireplace, or dryer vent needs attention, call Chestnut Chimney Sweep at (855) 360-4975 for a free estimate. Clean flue. Safe home. Done right.
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 Monrovia 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."
— Robert Novak"Cap keeps the birds out now, which after two springs of scratching noises is worth every penny."
— Paige Parker"Creosote buildup was worse than I realized. He measured it, showed me the glazing on the flue with the camera, and was honest that we were closer to a chimney fire than I wanted to hear."
— Andres Morales