Masonry repair
Sweep & inspection
Caps & crowns
Flue relining
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.
Fast, Reliable Chimney Repair Across Monrovia
Chimney repair in Monrovia typically runs $300 – $2,400 depending on the scope, with chimney cap installation averaging $350 – $750 and full flue relining landing between $1,800 – $3,200. Our crews work throughout Monrovia’s foothill neighborhoods weekly, and we arrive with the repair plan written down before we ring the bell. If you’ve got a spalling crown, cracked flue liner, or a chimney cap that’s letting Santa Ana embers into your firebox, call (626) 657-5513. We’ll tell you the price before any tool comes off the truck.
Monrovia isn’t just another stop on our route. The homes north of Foothill Boulevard, the Craftsman bungalows along Myrtle, the Spanish Colonials tucked into the hillsides, all have specific chimney needs that a Pasadena dispatch crew has to understand before recommending any repair. Hank Delano has made sure every tech who works Monrovia knows the housing stock and the failure patterns cold.
Why Flint Chimney Co Pasadena Is Monrovia’s Preferred Chimney Repair Company
We’ve been repairing chimneys in Monrovia long enough to know what a pre-1980s unlined flue looks like from the ground, and we’ve worked on enough of them to know what the camera will find before we send it up. Our Chimney Repair team has handled everything from crown rebuilds on 1920s Craftsman homes off Foothill to full flue relining jobs on mid-century ranch houses near the 210. Monrovia homeowners call us because the estimate we give over the phone is the number on the invoice, and because the repair comes with a written guarantee that says exactly what happens if it fails.
Every job in Monrovia starts with two things: a written price and a uniformed, background-checked technician who introduces himself by name. We don’t send a salesperson. We send a tradesperson who can answer questions about mortar, flue liners, and spark arrestors without flipping through a script. When a Monrovia homeowner asks whether a repair can wait until after fire season, we’ll give an honest answer backed by what we see on the camera, not what we think will close a sale next week.
Styles & brands we work with
Chimney Cap Installation in Monrovia
Chimney cap installation in Monrovia protects an unlined flue or aging masonry stack from Santa Ana embers, rain intrusion, and nesting animals that find their way into foothill chimneys. We install Copperfield and Olympia Chimney caps, typically pricing a standard stainless cap with spark arrestor between $350 – $750 in Monrovia, depending on flue size and whether the crown needs prep work first.
What Installation Involves
The cap gets seated over the flue opening and mechanically fastened to a stable crown surface. If the crown is cracked or crumbling, patching that first is mandatory; a cap mounted on a failing crown will shift within a season. We measure the flue on-site, and for pre-1980s Monrovia chimneys with non-standard clay tile dimensions, we’ll sometimes custom-order rather than force a generic cap that leaves gaps.
Why Monrovia Homes Need It More Urgently
Red flag warnings are routine in Monrovia. A missing or corroded cap on a chimney serving a wood-burning fireplace is an open inlet for wind-driven embers, and we’ve pulled cap screens from foothill homes so clogged with debris that the fireplace smoked out the living room. Installing the right cap, with proper spark arrestor mesh, closes that gap.
Chimney Cap Replacement in Monrovia
Chimney cap replacement in Monrovia is what we recommend when an existing cap has rusted through, torn loose in a wind event, or lost its spark arrestor mesh. Replacement typically runs $300 – $650 for a stainless cap on a standard single-flue Monrovia chimney, including removal of the old cap and inspection of the crown before the new one goes on.
Signs Your Current Cap Is Failing
You’ll sometimes hear a rattling cap during wind, or see pieces of mesh on the roof or in the yard after a Santa Ana event. More often, replacement comes up because a camera inspection during a Level 2 evaluation shows a cap that’s no longer seating flush, which lets rain drip down the flue and accelerate liner deterioration in older Monrovia chimneys.
What We’ll Do Before We Replace
We won’t install a cap over a flue that’s already damaged. Part of every cap replacement job is inspecting the upper flue tile and crown for cracks or spalling, because those are the repair that actually stops water from getting behind the chimney structure. If we find liner damage during the replacement, we’ll show you the camera footage and price the liner work as a separate written estimate before we go any further.
Trusted Brands We Service in Monrovia
We repair and install professional-grade chimney products from DuraFlex, HeatShield, and Copperfield. For Monrovia customers, that means we’re not pulling whatever cap or liner is cheapest off the shelf at a supply house. A DuraFlex liner goes in when the flue is too far gone for surface repair, and it’s sized and insulated to the specific chimney, not the nearest stock size. Copperfield caps are our default for foothill homes because the spark arrestor mesh holds up to wind-driven debris better than thin aftermarket screens. When we identify a repair that calls for one of these brands on our Chimney Repair in Monrovia calls, we can usually have the part staged within a couple of days without a second visit for measuring.
See the difference
Before
After
Before
After
Before
AfterCommon Chimney Repair Problems We See in Monrovia Homes
- Unlined flues north of Foothill Boulevard. Original masonry chimneys from the 1920s through the 1970s often lack a clay liner, and creosote bonds directly to the brick and mortar. By the time a homeowner notices draft problems, the buildup is frequently third-degree glaze that a brush cannot remove.
- Santa Ana ember and debris intrusion. Missing or corroded chimney caps allow wind-driven debris to pack into spark arrestors and flues. We’ve pulled enough pine needle and ember-blocked screens from Monrovia roofs to know this is a seasonal reload, not a one-time fix.
- Cracked clay flue liners in pre-1980s chimneys. Clay tiles crack under decades of heat cycling, and the damage is invisible from the ground. Most Monrovia homeowners don’t know they have a cracked liner until a Level 2 camera inspection shows spalling or gaps.
- Spalling brick and deteriorating crowns in foothill homes. Water intrusion through cracked crowns, followed by Santa Ana-driven dry air cycles, causes brick faces to pop and flake. Left alone, the damage works its way down the stack and turns a small mortar repair into a partial rebuild.
Pricing for Chimney Repair in Monrovia, CA
Here’s what Monrovia homeowners can expect to pay us, in writing, before work starts. Crown repair and mortar repointing typically runs $400 – $1,100 depending on how many courses are affected. Chimney waterproofing after brick repair is usually $300 – $700 for the full stack. Flue relining with DuraFlex runs $1,800 – $3,200 depending on height and whether insulation is required. A full chimney rebuild is the rare high-ticket job, running $4,000 – $8,000 when the structure is beyond saving. The factors that move the number are access difficulty on hillside lots, flue height, and whether the chimney serves one appliance or more. Call (626) 657-5513 for an exact written quote, and you’ll get a number that doesn’t move when the crew arrives.
We Also Serve Cities Near Monrovia
Our crews dispatch to Monrovia throughout the week, and we handle chimney repair in Arcadia, Duarte, Baldwin Park, and Temple City. If you’re in a neighboring community and looking for the same written-price-before-work chimney repair, call us at (626) 657-5513, and we’ll schedule you with the team that works the Monrovia corridor regularly.
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 Repair in Monrovia
Homes north of Foothill in Monrovia are overwhelmingly pre-1980s construction with original masonry chimneys and often unlined flues, which accumulate creosote faster and handle heat cycling more poorly than newer cinder block and metal pipe systems found in some southern Monrovia neighborhoods. The added factor is the wildland-urban interface, where Santa Ana winds drive more debris and embers into open flues, accelerating cap and crown failure. So it’s not that homeowners north of Foothill are doing anything wrong; the housing stock and the wind exposure do the damage on their own schedule. Call (626) 657-5513 to get an exact repair scope for your home, whichever side of Foothill it’s on.
No, a cap cannot remove or prevent creosote; what it does in Monrovia is stop the wind-driven debris, embers, and moisture that make an unlined flue’s creosote problem worse and more dangerous. An unlined flue is going to build creosote no matter what cap sits on top, and if you’re already seeing glaze, the cap is not a substitute for a chimney sweep or a repair liner. Install a proper cap with spark arrestor for the fire risk, and then schedule a sweep of the flue itself. Call (626) 657-5513 to schedule both in one visit.
Santa Ana winds expose cracked crowns to rapid debris loading and ember strikes, which means a crown that’s already showing hairline fractures can open further under wind stress and let water into the brick face. Homes closer to the foothill brush line see more cyclical heating and wind-driven abrasive action on the crown surface than homes down in the flats. That’s why we waterproof crowns after repair in Monrovia as a default, not an upsell; the seasonal cycle here is too hard on bare mortar to skip it. Call (626) 657-5513 for a crown evaluation and a written price before fire season peaks.
First-degree creosote is a flaky soot that brushes off with standard sweeping; third-degree is a hardened, glazed coating that has baked onto the flue wall and cannot be removed with a brush alone. In Monrovia’s pre-1980s unlined flues, we see third-degree buildup more often than in newer chimneys because the creosote sits directly against rough brick with no liner to insulate it. Once it’s glazed over, the flue often needs a chemical treatment or a stainless liner from a brand like DuraFlex instead of a simple sweep, which moves the job from maintenance to repair. Call (626) 657-5513 if you suspect glaze; we’ll run the camera and show you exactly what’s in there.
A chimney serving a wood stove in Monrovia should be inspected and swept every 30 to 40 burning days or at least once per burn season, which is more frequent than the once-a-season standard for an occasional open fireplace. Wood stoves run hotter and longer than fireplaces but also produce denser particulate loading, and when that loading happens in an unlined foothill chimney, the safe interval shrinks faster. If you’re burning as a primary heat source in Monrovia, call (626) 657-5513 to set an inspection schedule, and we’ll put the date and the price in writing before we arrive.
Written by Hank Delano, Owner at Flint Chimney Co Pasadena, serving Monrovia and the surrounding foothill communities as part of the Garrison Partners family since 2002.