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 built before 1940. The Craftsman bungalows and foothill homes here carry original brick and stone fireplaces with clay flue tile that’s been through eighty-plus years of damp marine-layer mornings and Santa Ana heat. Ashwood Chimney Sweep has served Monrovia since 2012, and we approach every job knowing the flue above the firebox is probably older than the homeowner. If you’re seeing mortar dust in the firebox or water stains on the ceiling near the chimney, call (833) 805-3229 and we’ll tell you exactly what’s happening.
Why Monrovia Homes Are Different
Monrovia sits tight against the San Gabriel Mountains, and that geography shapes almost every chimney we open up. The streets climbing above Old Town get down-canyon winds that push leaves, seed pods, and occasional ash straight into uncapped flues. Homes below Foothill Boulevard catch less of that wind, but the damp morning marine layer still works on old mortar joints year-round. Most of the fireplaces in the 91016 and 91017 ZIP codes are original to homes built between 1900 and the 1930s, which means clay flue tile rather than modern stainless liners. That tile cracks, spalls, and separates after decades of intermittent winter use followed by long dormant stretches. The result is a repair profile weighted toward crown repair, repointing, and liner evaluation rather than insert replacements. In the fall, we regularly pull nests and debris out of flues in the foothill blocks before the first burn.
Styles & brands we work with





Our Main Monrovia Services
Most Monrovia homeowners call us for one of two reasons: the annual sweep before burning season, or dryer vent work when they learn how much lint a foothill home’s laundry room can push through a duct. Both are covered in detail on their own pages.
Chimney Sweep in Monrovia
A sweep in Monrovia is rarely just brush work. The age of the housing stock means every cleaning doubles as an inspection of the clay tile, the smoke shelf, and the crown. We check what the wind and damp have done since the last burn season. Homes in the foothill blocks above Old Town frequently arrive with debris-blocked flues each fall, and we clear that before it becomes a smoke problem or a chimney fire. If this is your first sweep in a new-to-you Craftsman, we walk you through what we found. Full details are on the Chimney Sweep in Monrovia page.

Dryer Vent Cleaning in Monrovia
Dryer vent cleaning in Monrovia is a fire-safety job, not an add-on. Older homes often have long or kinked duct runs from interior laundry closets, and the volume of lint those systems trap surprises almost every homeowner we meet. When we clean a vent, we inspect the full run, not just the first few feet from the dryer. A blocked vent pushes the dryer’s exhaust back into the house and raises the risk of a lint fire. We treat this work with the same seriousness as any chimney job. Details are on the 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
Repair work in Monrovia concentrates on the masonry envelope and the flue liner. These chimneys were built when the homes were built, and the failure pattern follows a predictable arc: crown cracks first, water gets into the brick, the mortar joints soften, and the clay tile liner spalls from years of heating and cooling against mountain-moist air. If your home is one of the 1900s to 1930s bungalows near Old Town, the issue is rarely the firebox itself. It’s what sits above it. Ashwood handles the whole flue, not just the easy parts, and we repair with the same materials professional contractors specify. For the full breakdown of how we approach chimney repair, see Chimney Repair.
Chimney Cap Installation
Signs you need it
You can hear birds in the flue, you’ve found leaves or seed pods in the firebox, or rain has been coming straight down the throat of the chimney during Monrovia’s winter storms.
What it costs in Monrovia
Chimney cap installation in Monrovia typically runs $280 to $540 depending on the flue tile size and cap material.
How we do it
We measure the flue tile opening, install a stainless steel cap with a proper screen, and mechanically fasten it to the flue so Santa Ana gusts can’t lift it.
Chimney Crown Repair
Signs you need it
You’re seeing hairline cracks across the cement crown, water staining on the chimney breast in the attic, or small pieces of mortar in the gutter below the chimney.
What it costs in Monrovia
Chimney crown repair in Monrovia typically runs $350 to $900, with resurfacing on the lower end and full crown rebuilds on the higher end.
How we do it
We assess whether the crown can be resurfaced with a bonding agent and proper crown mix or needs a full teardown and repour with an expansion joint between the flue and the crown surface.
Chimney Flashing Repair
Signs you need it
You have a ceiling stain near the chimney after rain, damp drywall in the attic around the roof penetration, or visible gaps between the flashing and the brick.
What it costs in Monrovia
Chimney flashing repair in Monrovia typically runs $350 to $900, while full flashing replacement on an older masonry chimney can reach $1,100.
How we do it
We cut and install step flashing and counterflashing so water can’t sit against the mortar joints, and we seal the transition with a high-grade urethane caulk that holds up to foothill moisture.
Chimney Liner Installation
Signs you need it
An inspection has shown cracked or missing clay tile sections, you smell smoke in upper rooms after a burn, or the flue is no longer safe to use.
What it costs in Monrovia
Chimney liner installation in Monrovia typically runs $2,400 to $5,500 depending on flue height, access, and whether it’s a stainless or aluminum liner system.
How we do it
We size the liner to the appliance and flue dimensions, drop it in sections, insulate as needed, and connect it to the appliance with proper terminations at both ends.
What Chimney Repair Costs in Monrovia
| Item | Typical range in Monrovia |
|---|---|
| Chimney cap installation | $280 – $540 |
| Chimney crown repair | $350 – $900 |
| Chimney flashing repair | $350 – $900 |
| Chimney liner installation | $2,400 – $5,500 |
Can you fix a cracked flue liner without tearing out the chimney?
Yes, in most cases. If the liner has spalled or cracked but the masonry around it is sound, HeatShield lets us restore the flue surface without full demolition. This is a repair option many sweep-only companies in Monrovia cannot provide.
How long does a chimney repair take in Monrovia?
Most cap, crown, and flashing repairs are done in a single visit. Liner work typically takes one to two days depending on flue height and access from the roof. We’ll give you a straight timeline before we start the job.
Brands We Service in Monrovia
We stock and install DuraFlex liner systems, Olympia Chimney components, Famco ventilation hardware, and Copperfield masonry materials. These are professional-trade products, not retail substitutes, and we keep the common Monrovia sizes stocked locally for faster turnarounds. See our brands for the full lineup.
See the difference
Before
After
Before
After
Before
AfterPricing for Chimney Company in Monrovia, CA
| Service | Typical range in Monrovia |
|---|---|
| Chimney sweep (standard inspection) | $180 – $340 |
| Chimney sweep + Level 2 inspection | $350 – $650 |
| Dryer vent cleaning | $150 – $300 |
| Chimney cap installation | $280 – $540 |
| Chimney crown repair | $350 – $900 |
| Chimney flashing repair | $350 – $900 |
| Chimney liner installation | $2,400 – $5,500 |
In Monrovia, price gets pushed higher when a chimney needs scaffolding work above a steep foothill roof or when an older flue tile has to be removed before a liner goes in. You’ll always get a fixed-price quote before we start, and we don’t pad the price with surprise line items.
Neighborhoods We Serve in Monrovia
Ashwood Chimney Sweep covers all of Monrovia’s 91016 and 91017 ZIP codes. We work in the flat grid of central Monrovia, the historic streets of Old Town, and the hillside blocks where roof pitch and access make chimney work slower and more deliberate. Typical scheduling for a Monrovia job is within three to five business days.
- Old Town Monrovia
- North Monrovia (foothill blocks above Foothill Boulevard)
- Mayflower Village border streets
- Central Monrovia
- South Monrovia
Service Area – Cities Near Monrovia
Ashwood Chimney Sweep serves Monrovia and the surrounding foothill communities. We regularly work in Mayflower Village, CA, Duarte, CA, Bradbury, CA, and Arcadia, CA. If you’re just across the city line, call us and we’ll confirm your address is in our service area.
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 Monrovia jobs are scheduled within three to five business days. During October and November, before the burn season starts, the schedule tightens. If you’re planning a sweep before winter, call a few weeks ahead.
Most routine chimney repairs like cap installation, crown work, and flashing don’t require a city permit. Liner installation on an existing masonry chimney typically doesn’t either. For structural rebuilds, we’ll let you know if the city needs to be involved.
We work on both, but the majority of our Monrovia jobs are on original masonry fireplaces in the city’s Craftsman and bungalow housing stock. Those chimneys need repointing, crown repair, and liner evaluation far more often than prefab inserts do. Call (833) 805-3229 for an estimate.
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
"Three other companies in Fontana either didn't pick up or wanted to schedule me for the following week. These guys had someone out the next morning."
— Stephanie Thompson"Crown was cracked and taking water. Repaired it rather than quoting a rebuild, which the previous company had pushed hard for."
— Angela Kim"Swept it, capped it, and installed a proper damper. The downdraft smell in the summer that we'd lived with for years is gone."
— Yolanda Martinez